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Conserved domains on  [gi|1034627469|ref|XP_016883917|]
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intersectin-1 isoform X1 [Homo sapiens]

Protein Classification

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
PH_13 pfam16652
Pleckstrin homology domain;
1440-1582 4.01e-92

Pleckstrin homology domain;


:

Pssm-ID: 465218  Cd Length: 143  Bit Score: 294.30  E-value: 4.01e-92
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1440 VQCEGLSEQLVFNSVTNCLGPRKFLHSGKLYKAKSNKELYGFLFNDFLLLTQITKPLGSSGTDKVFSPKSNLQYKMYKTP 1519
Cdd:pfam16652    1 VQCEGLSEQLVFNSLTNCLGPRKLLHSGKLYKVKSNKELVGFLFNDFLLLTQPVKPLSSAGTDKLFSSKSNIQYKMYKTP 80
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1520 IFLNEVLVKLPTDPSGDEPIFHISHIDRVYTLRAESINERTAWVQKIKAASELYIETEKKKRE 1582
Cdd:pfam16652   81 IFLNEVMVKLPTDPSSSEPTFQLSHIDRVYTLKAESPNERTAWVKKIKEASELYIETEKKKRE 143
C2_Intersectin cd08375
C2 domain present in Intersectin; A single instance of the C2 domain is located C terminally ...
1582-1716 4.07e-83

C2 domain present in Intersectin; A single instance of the C2 domain is located C terminally in the intersectin protein. Intersectin functions as a scaffolding protein, providing a link between the actin cytoskeleton and the components of endocytosis and plays a role in signal transduction. In addition to C2, intersectin contains several additional domains including: Eps15 homology domains, SH3 domains, a RhoGEF domain, and a PH domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. The members here have topology I.


:

Pssm-ID: 176021 [Multi-domain]  Cd Length: 136  Bit Score: 268.48  E-value: 4.07e-83
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1582 EKAYLVRSQRATGIGRLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCI 1661
Cdd:cd08375      1 EKAYLARSQRASGIGRLMVVIVEGRDLKPCNSNGKSDPYCEVSMGSQEHKTKVVSDTLNPKWNSSMQFFVKDLEQDVLCI 80
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1662 TVFERDQFSPDDFLGRTEIRVADIKKD-QGSKGPVTKCLLLHEVPTGEIVVRLDLQ 1716
Cdd:cd08375     81 TVFDRDFFSPDDFLGRTEIRVADILKEtKESKGPITKRLLLHEVPTGEVVVKLDLQ 136
INTAP pfam16617
Intersectin and clathrin adaptor AP2 binding region; INTAP is a natively unstructured region ...
803-917 7.38e-72

Intersectin and clathrin adaptor AP2 binding region; INTAP is a natively unstructured region of intersectin 1 proteins, lying between the first pair of SH3 domains, that binds to the clathrin adaptor AP2. This binding forms an intersectin-AP2 complex that functions as an important regulator of clathrin-mediated SV recycling in synapses.


:

Pssm-ID: 435467  Cd Length: 115  Bit Score: 235.16  E-value: 7.38e-72
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  803 KIPENEVPAPVKPVTDSTsaPAPKLALRETPA-PLAV-TSSEPSTTPNNWADFSSTWPTSTNEKPETDNWDAWAAQPSLT 880
Cdd:pfam16617    1 KIPESEVPASVKPAADST--AAPKVALRETPTtPLAPpTSSESSTASNNWADFSSTWPTNSSEKAETDNWDAWAAQPSLT 78
                           90       100       110
                   ....*....|....*....|....*....|....*..
gi 1034627469  881 VPSAGQLRQRSAFTPATATGSSPSPVLGQGEKVEGLQ 917
Cdd:pfam16617   79 VPSAGQLRQRSAFTPATVTGSSPSPVLGQGEKVEGLQ 115
RhoGEF cd00160
Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Also called Dbl-homologous ...
1238-1421 6.06e-53

Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Also called Dbl-homologous (DH) domain. It appears that PH domains invariably occur C-terminal to RhoGEF/DH domains.


:

Pssm-ID: 238091 [Multi-domain]  Cd Length: 181  Bit Score: 183.65  E-value: 6.06e-53
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1238 RQGYIHELIVTEENYVNDLQLVTEIFQKPLMESEL-LTEKEVAMIFVNWKELIMCNIKLLKALRVRKKMSGekMPVKMIG 1316
Cdd:cd00160      1 RQEVIKELLQTERNYVRDLKLLVEVFLKPLDKELLpLSPEEVELLFGNIEEIYEFHRIFLKSLEERVEEWD--KSGPRIG 78
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1317 DILSAQLPHMQPYIRFCSRQLNGAALIQQKTDEAPDFKEFVKRLamDPRCKGMPLSSFILKPMQRVTRYPLIIKNILENT 1396
Cdd:cd00160     79 DVFLKLAPFFKIYSEYCSNHPDALELLKKLKKFNKFFQEFLEKA--ESECGRLKLESLLLKPVQRLTKYPLLLKELLKHT 156
                          170       180
                   ....*....|....*....|....*
gi 1034627469 1397 PENHPDHSHLKHALEKAEELCSQVN 1421
Cdd:cd00160    157 PDGHEDREDLKKALEAIKEVASQVN 181
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
214-309 3.57e-45

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


:

Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 158.21  E-value: 3.57e-45
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469   214 EWAVPQSSRLKYRQLFNSHDKTMSGHLTGPQARTILMQSSLPQAQLASIWNLSDIDQDGKLTAEEFILAMHLIDVAMSGQ 293
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKNQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 1034627469   294 PLPPVLPPEYIPPSFR 309
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
SH3_Intersectin1_4 cd11993
Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1074-1138 7.98e-39

Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


:

Pssm-ID: 212926  Cd Length: 65  Bit Score: 139.10  E-value: 7.98e-39
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1074 KKPEIAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKRQIGWFPANYVKLLSP 1138
Cdd:cd11993      1 KKPEIAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKRQIGWFPANYVKLLSP 65
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
14-108 2.37e-36

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


:

Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 133.17  E-value: 2.37e-36
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469    14 IWAITVEERAKHDQQFHSLKP-ISGFITGDQARNFFFQSGLPQPVLAQIWALADMNNDGRMDQVEFSIAMKLIKLKLQGY 92
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKnQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 1034627469    93 QLPSALPPVMKQQPVA 108
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
SH3_Intersectin1_1 cd11987
First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
744-803 3.98e-35

First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


:

Pssm-ID: 212920 [Multi-domain]  Cd Length: 55  Bit Score: 128.19  E-value: 3.98e-35
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVkgewvDESQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11987      1 YYRALYPFEARSHDEITIQPGDIVMV-----DESQTGEPGWLGGELKGKTGWFPANYAEK 55
SH3_Intersectin1_5 cd11995
Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1158-1211 8.79e-34

Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


:

Pssm-ID: 212928 [Multi-domain]  Cd Length: 54  Bit Score: 124.30  E-value: 8.79e-34
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1158 CQVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11995      1 CQVIGMYDYTAQNDDELAFSKGQIINVLNKEDPDWWKGELNGQVGLFPSNYVKL 54
SH3_Intersectin1_3 cd11991
Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1006-1057 5.24e-33

Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


:

Pssm-ID: 212924  Cd Length: 52  Bit Score: 122.01  E-value: 5.24e-33
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11991      1 EYVAMYTYESNEQGDLTFQQGDVILVTKKDGDWWTGTVGDKTGVFPSNYVRP 52
SH3_Intersectin1_2 cd11989
Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
917-968 1.01e-30

Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


:

Pssm-ID: 212922 [Multi-domain]  Cd Length: 52  Bit Score: 115.58  E-value: 1.01e-30
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11989      1 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYVKL 52
Smc super family cl34174
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
363-684 6.93e-19

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


The actual alignment was detected with superfamily member COG1196:

Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 93.46  E-value: 6.93e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  363 LELEKRRQALLEQQRKEQERLAQLERAEQERKERERqEQERKRQLELEKQLEKQrelerqreeerrkeIERREAAKRELE 442
Cdd:COG1196    234 LRELEAELEELEAELEELEAELEELEAELAELEAEL-EELRLELEELELELEEA--------------QAEEYELLAELA 298
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  443 R-QRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRI 521
Cdd:COG1196    299 RlEQDIARLEERRRELEERLEELEEELAELEEELEELEEELEELEEELEEAEEELEEAEAELAEAEEALLEAEAELAEAE 378
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  522 AEithlqqqlqesqqmlgrlipEKQILNDQLKQVQQNSLHRDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEID 601
Cdd:COG1196    379 EE--------------------LEELAEELLEALRAAAELAAQLEELEEAEEALLERLERLEEELEELEEALAELEEEEE 438
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  602 IFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEK 681
Cdd:COG1196    439 EEEEALEEAAEEEAELEEEEEALLELLAELLEEAALLEAALAELLEELAEAAARLLLLLEAEADYEGFLEGVKAALLLAG 518

                   ...
gi 1034627469  682 LKR 684
Cdd:COG1196    519 LRG 521
 
Name Accession Description Interval E-value
PH_13 pfam16652
Pleckstrin homology domain;
1440-1582 4.01e-92

Pleckstrin homology domain;


Pssm-ID: 465218  Cd Length: 143  Bit Score: 294.30  E-value: 4.01e-92
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1440 VQCEGLSEQLVFNSVTNCLGPRKFLHSGKLYKAKSNKELYGFLFNDFLLLTQITKPLGSSGTDKVFSPKSNLQYKMYKTP 1519
Cdd:pfam16652    1 VQCEGLSEQLVFNSLTNCLGPRKLLHSGKLYKVKSNKELVGFLFNDFLLLTQPVKPLSSAGTDKLFSSKSNIQYKMYKTP 80
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1520 IFLNEVLVKLPTDPSGDEPIFHISHIDRVYTLRAESINERTAWVQKIKAASELYIETEKKKRE 1582
Cdd:pfam16652   81 IFLNEVMVKLPTDPSSSEPTFQLSHIDRVYTLKAESPNERTAWVKKIKEASELYIETEKKKRE 143
PH_ITSN cd13264
Intersectin Pleckstrin homology (PH) domain; ITSNs, an adaptor protein family, play a role in ...
1448-1579 1.60e-84

Intersectin Pleckstrin homology (PH) domain; ITSNs, an adaptor protein family, play a role in endo- and exocytosis, actin cytoskeleton rearrangement and signal transduction. There are two human ITSN genes: ITSN1 and ITSN2. They share significant sequence identity and a similar domain structure having both short and long isoforms produced by alternative splicing. The short isoform (ITSN-S) consists of two Eps15 homology domains (EH1 and EH2), a coiled-coil region (CCR) and five Src homology 3 domains (SH3A-E). The EH domains bind to Asn-Pro-Phe motifs and are implicated in endocytosis and vesicle transport. The SH3 domains bind to proline-rich sequences and are commonly found in proteins implicated in cell signalling pathways, cytoskeletal organization and membrane traffic. The long isoform (ITSN-L) contains three additional C-terminal domains, a Dbl homology domain (DH), a Pleckstrin homology domain (PH) and a C2 domain. The tandem DH-PH domains are present in all Dbl family of GEFs. ITSN acts specifically on Cdc42 through its DH domain with no portion of the PH domain making contact with Cdc42. This is in contrast to Dbs which requires the PH domain for full catalytic activity. The ITSN PH domain binds phosphoinositides. C2 domains are usually involved in Ca2+-dependent and Ca2+-independent phospholipid binding. There are more than 30 proteins that interact with ITSNs. ITSN-S is present in mammals, frogs, flies and nematodes, while ITSN-L is present only in vertebrates. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 270084  Cd Length: 132  Bit Score: 272.02  E-value: 1.60e-84
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1448 QLVFNSVTNCLGPRKFLHSGKLYKAKSNKELYGFLFNDFLLLTQITKPLGSSGTDKVFSPKSNLQYKMYKTPIFLNEVLV 1527
Cdd:cd13264      1 QLIFNSVTNCLGPRKFLHSGKLYKAKSNKELYGFLFNDFLLLTQPIKPLGSSGNDFVFDNKANIQYKMYKTPIFLNEVLV 80
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1528 KLPTDPSGDEPIFHISHIDRVYTLRAESINERTAWVQKIKAASELYIETEKK 1579
Cdd:cd13264     81 KLPTDPSGDEPIFHISHIDRVYTLRAESINERTAWVQKIKAASELYIETEKK 132
C2_Intersectin cd08375
C2 domain present in Intersectin; A single instance of the C2 domain is located C terminally ...
1582-1716 4.07e-83

C2 domain present in Intersectin; A single instance of the C2 domain is located C terminally in the intersectin protein. Intersectin functions as a scaffolding protein, providing a link between the actin cytoskeleton and the components of endocytosis and plays a role in signal transduction. In addition to C2, intersectin contains several additional domains including: Eps15 homology domains, SH3 domains, a RhoGEF domain, and a PH domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. The members here have topology I.


Pssm-ID: 176021 [Multi-domain]  Cd Length: 136  Bit Score: 268.48  E-value: 4.07e-83
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1582 EKAYLVRSQRATGIGRLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCI 1661
Cdd:cd08375      1 EKAYLARSQRASGIGRLMVVIVEGRDLKPCNSNGKSDPYCEVSMGSQEHKTKVVSDTLNPKWNSSMQFFVKDLEQDVLCI 80
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1662 TVFERDQFSPDDFLGRTEIRVADIKKD-QGSKGPVTKCLLLHEVPTGEIVVRLDLQ 1716
Cdd:cd08375     81 TVFDRDFFSPDDFLGRTEIRVADILKEtKESKGPITKRLLLHEVPTGEVVVKLDLQ 136
INTAP pfam16617
Intersectin and clathrin adaptor AP2 binding region; INTAP is a natively unstructured region ...
803-917 7.38e-72

Intersectin and clathrin adaptor AP2 binding region; INTAP is a natively unstructured region of intersectin 1 proteins, lying between the first pair of SH3 domains, that binds to the clathrin adaptor AP2. This binding forms an intersectin-AP2 complex that functions as an important regulator of clathrin-mediated SV recycling in synapses.


Pssm-ID: 435467  Cd Length: 115  Bit Score: 235.16  E-value: 7.38e-72
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  803 KIPENEVPAPVKPVTDSTsaPAPKLALRETPA-PLAV-TSSEPSTTPNNWADFSSTWPTSTNEKPETDNWDAWAAQPSLT 880
Cdd:pfam16617    1 KIPESEVPASVKPAADST--AAPKVALRETPTtPLAPpTSSESSTASNNWADFSSTWPTNSSEKAETDNWDAWAAQPSLT 78
                           90       100       110
                   ....*....|....*....|....*....|....*..
gi 1034627469  881 VPSAGQLRQRSAFTPATATGSSPSPVLGQGEKVEGLQ 917
Cdd:pfam16617   79 VPSAGQLRQRSAFTPATVTGSSPSPVLGQGEKVEGLQ 115
RhoGEF cd00160
Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Also called Dbl-homologous ...
1238-1421 6.06e-53

Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Also called Dbl-homologous (DH) domain. It appears that PH domains invariably occur C-terminal to RhoGEF/DH domains.


Pssm-ID: 238091 [Multi-domain]  Cd Length: 181  Bit Score: 183.65  E-value: 6.06e-53
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1238 RQGYIHELIVTEENYVNDLQLVTEIFQKPLMESEL-LTEKEVAMIFVNWKELIMCNIKLLKALRVRKKMSGekMPVKMIG 1316
Cdd:cd00160      1 RQEVIKELLQTERNYVRDLKLLVEVFLKPLDKELLpLSPEEVELLFGNIEEIYEFHRIFLKSLEERVEEWD--KSGPRIG 78
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1317 DILSAQLPHMQPYIRFCSRQLNGAALIQQKTDEAPDFKEFVKRLamDPRCKGMPLSSFILKPMQRVTRYPLIIKNILENT 1396
Cdd:cd00160     79 DVFLKLAPFFKIYSEYCSNHPDALELLKKLKKFNKFFQEFLEKA--ESECGRLKLESLLLKPVQRLTKYPLLLKELLKHT 156
                          170       180
                   ....*....|....*....|....*
gi 1034627469 1397 PENHPDHSHLKHALEKAEELCSQVN 1421
Cdd:cd00160    157 PDGHEDREDLKKALEAIKEVASQVN 181
RhoGEF smart00325
Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Guanine nucleotide exchange ...
1242-1422 4.47e-51

Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called Dbl-homologous (DH) domain. It appears that PH domains invariably occur C-terminal to RhoGEF/DH domains. Improved coverage.


Pssm-ID: 214619 [Multi-domain]  Cd Length: 180  Bit Score: 178.26  E-value: 4.47e-51
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  1242 IHELIVTEENYVNDLQLVTEIFQKPLMESE-LLTEKEVAMIFVNWKELIMCNIKLLKALRVRKKMSGekMPVKMIGDILS 1320
Cdd:smart00325    2 LKELLQTERNYVRDLKLLVEVFLKPLKKELkLLSPNELETLFGNIEEIYEFHRDFLDELEERIEEWD--DSVERIGDVFL 79
                            90       100       110       120       130       140       150       160
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  1321 AQLPHMQPYIRFCSRQLNGAALIQQKtDEAPDFKEFVKRLAMDPRCKGMPLSSFILKPMQRVTRYPLIIKNILENTPENH 1400
Cdd:smart00325   80 KLEEFFKIYSEYCSNHPDALELLKKL-KKNPRFQKFLKEIESSPQCRRLTLESLLLKPVQRLTKYPLLLKELLKHTPEDH 158
                           170       180
                    ....*....|....*....|..
gi 1034627469  1401 PDHSHLKHALEKAEELCSQVNE 1422
Cdd:smart00325  159 EDREDLKKALKAIKELANQVNE 180
RhoGEF pfam00621
RhoGEF domain; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called ...
1242-1421 1.09e-50

RhoGEF domain; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called Dbl-homologous (DH) domain. It appears that pfam00169 domains invariably occur C-terminal to RhoGEF/DH domains.


Pssm-ID: 459876 [Multi-domain]  Cd Length: 176  Bit Score: 177.11  E-value: 1.09e-50
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1242 IHELIVTEENYVNDLQLVTEIFQKPLMESELLTEKEVAMIFVNWKELIMCNIKLLkaLRVRKKmsgEKMPVKMIGDILSA 1321
Cdd:pfam00621    2 IKELLQTERSYVRDLEILVEVFLPPNSKPLSESEEEIKTIFSNIEEIYELHRQLL--LEELLK---EWISIQRIGDIFLK 76
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1322 QLPHMQPYIRFCSRQLNGAALIQQKTDEAPDFKEFVKRLAMDPRCKGMPLSSFILKPMQRVTRYPLIIKNILENTPENHP 1401
Cdd:pfam00621   77 FAPGFKVYSTYCSNYPKALKLLKKLLKKNPKFRAFLEELEANPECRGLDLNSFLIKPVQRIPRYPLLLKELLKHTPPDHP 156
                          170       180
                   ....*....|....*....|
gi 1034627469 1402 DHSHLKHALEKAEELCSQVN 1421
Cdd:pfam00621  157 DYEDLKKALEAIKEVAKQIN 176
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
214-309 3.57e-45

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 158.21  E-value: 3.57e-45
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469   214 EWAVPQSSRLKYRQLFNSHDKTMSGHLTGPQARTILMQSSLPQAQLASIWNLSDIDQDGKLTAEEFILAMHLIDVAMSGQ 293
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKNQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 1034627469   294 PLPPVLPPEYIPPSFR 309
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
SH3_Intersectin1_4 cd11993
Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1074-1138 7.98e-39

Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212926  Cd Length: 65  Bit Score: 139.10  E-value: 7.98e-39
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1074 KKPEIAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKRQIGWFPANYVKLLSP 1138
Cdd:cd11993      1 KKPEIAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKRQIGWFPANYVKLLSP 65
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
14-108 2.37e-36

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 133.17  E-value: 2.37e-36
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469    14 IWAITVEERAKHDQQFHSLKP-ISGFITGDQARNFFFQSGLPQPVLAQIWALADMNNDGRMDQVEFSIAMKLIKLKLQGY 92
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKnQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 1034627469    93 QLPSALPPVMKQQPVA 108
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
SH3_Intersectin1_1 cd11987
First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
744-803 3.98e-35

First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212920 [Multi-domain]  Cd Length: 55  Bit Score: 128.19  E-value: 3.98e-35
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVkgewvDESQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11987      1 YYRALYPFEARSHDEITIQPGDIVMV-----DESQTGEPGWLGGELKGKTGWFPANYAEK 55
SH3_Intersectin1_5 cd11995
Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1158-1211 8.79e-34

Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212928 [Multi-domain]  Cd Length: 54  Bit Score: 124.30  E-value: 8.79e-34
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1158 CQVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11995      1 CQVIGMYDYTAQNDDELAFSKGQIINVLNKEDPDWWKGELNGQVGLFPSNYVKL 54
SH3_Intersectin1_3 cd11991
Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1006-1057 5.24e-33

Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212924  Cd Length: 52  Bit Score: 122.01  E-value: 5.24e-33
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11991      1 EYVAMYTYESNEQGDLTFQQGDVILVTKKDGDWWTGTVGDKTGVFPSNYVRP 52
SH3_Intersectin1_2 cd11989
Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
917-968 1.01e-30

Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212922 [Multi-domain]  Cd Length: 52  Bit Score: 115.58  E-value: 1.01e-30
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11989      1 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYVKL 52
EH cd00052
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and ...
225-291 2.03e-25

Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and signal transduction. The alignment contains a pair of EF-hand motifs, typically one of them is canonical and binds to Ca2+, while the other may not bind to Ca2+. A hydrophobic binding pocket is formed by residues from both EF-hand motifs. The EH domain binds to proteins containing NPF (class I), [WF]W or SWG (class II), or H[TS]F (class III) sequence motifs.


Pssm-ID: 238009 [Multi-domain]  Cd Length: 67  Bit Score: 100.76  E-value: 2.03e-25
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  225 YRQLFNSHDKTMSGHLTGPQARTILMQSSLPQAQLASIWNLSDIDQDGKLTAEEFILAMHLIDVAMS 291
Cdd:cd00052      1 YDQIFRSLDPDGDGLISGDEARPFLGKSGLPRSVLAQIWDLADTDKDGKLDKEEFAIAMHLIALALN 67
EH cd00052
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and ...
26-90 2.91e-25

Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and signal transduction. The alignment contains a pair of EF-hand motifs, typically one of them is canonical and binds to Ca2+, while the other may not bind to Ca2+. A hydrophobic binding pocket is formed by residues from both EF-hand motifs. The EH domain binds to proteins containing NPF (class I), [WF]W or SWG (class II), or H[TS]F (class III) sequence motifs.


Pssm-ID: 238009 [Multi-domain]  Cd Length: 67  Bit Score: 100.37  E-value: 2.91e-25
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469   26 DQQFHSLKPI-SGFITGDQARNFFFQSGLPQPVLAQIWALADMNNDGRMDQVEFSIAMKLIKLKLQ 90
Cdd:cd00052      2 DQIFRSLDPDgDGLISGDEARPFLGKSGLPRSVLAQIWDLADTDKDGKLDKEEFAIAMHLIALALN 67
C2 pfam00168
C2 domain;
1596-1690 1.39e-24

C2 domain;


Pssm-ID: 425499 [Multi-domain]  Cd Length: 104  Bit Score: 99.70  E-value: 1.39e-24
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHI--TKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPDD 1673
Cdd:pfam00168    1 GRLTVTVIEAKNLPPKDGNGTSDPYVKVYLLDGKQKkkTKVVKNTLNPVWNETFTFSVPDPENAVLEIEVYDYDRFGRDD 80
                           90
                   ....*....|....*..
gi 1034627469 1674 FLGRTEIRVADIKKDQG 1690
Cdd:pfam00168   81 FIGEVRIPLSELDSGEG 97
C2 smart00239
Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, ...
1597-1693 1.02e-23

Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, protein kinases C, and synaptotagmins (among others). Some do not appear to contain Ca2+-binding sites. Particular C2s appear to bind phospholipids, inositol polyphosphates, and intracellular proteins. Unusual occurrence in perforin. Synaptotagmin and PLC C2s are permuted in sequence with respect to N- and C-terminal beta strands. SMART detects C2 domains using one or both of two profiles.


Pssm-ID: 214577 [Multi-domain]  Cd Length: 101  Bit Score: 97.17  E-value: 1.02e-23
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  1597 RLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHI---TKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPDD 1673
Cdd:smart00239    1 TLTVKIISARNLPPKDKGGKSDPYVKVSLDGDPKEkkkTKVVKNTLNPVWNETFEFEVPPPELAELEIEVYDKDRFGRDD 80
                            90       100
                    ....*....|....*....|
gi 1034627469  1674 FLGRTEIRVADIKKDQGSKG 1693
Cdd:smart00239   81 FIGQVTIPLSDLLLGGRHEK 100
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
1157-1210 2.08e-21

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 88.75  E-value: 2.08e-21
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  1157 VCQVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVN-GQVGLFPSNYVK 1210
Cdd:smart00326    2 GPQVRALYDYTAQDPDELSFKKGDIITVLEKSDDGWWKGRLGrGKEGLFPSNYVE 56
ROM1 COG5422
RhoGEF, Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases [Signal transduction ...
1227-1567 1.45e-19

RhoGEF, Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases [Signal transduction mechanisms];


Pssm-ID: 227709 [Multi-domain]  Cd Length: 1175  Bit Score: 96.11  E-value: 1.45e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1227 LLDMLTPTERKRQGYIHELIVTEENYVNDLQLVTEIFQKPLMESELLTE----KEVAMIFVNWKELIMCNIKLLKALRVR 1302
Cdd:COG5422    474 VWESLPKQEIKRQEAIYEVIYTERDFVKDLEYLRDTWIKPLEESNIIPEnarrNFIKHVFANINEIYAVNSKLLKALTNR 553
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1303 KKMSGekmPVKMIGDILSAQLPHMQPYIRFCSRQLNGAALIQQKTDEAPDFKEFVKRLAMDPRCKGMPLSSFILKPMQRV 1382
Cdd:COG5422    554 QCLSP---IVNGIADIFLDYVPKFEPFIKYGASQPYAKYEFEREKSVNPNFARFDHEVERLDESRKLELDGYLTKPTTRL 630
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1383 TRYPLIIKNILENTPENHPDHSHLKHALEKAEELCSQVNEGVREKENsdRLEWIQahvqcegLSEQLVFNSVTNCLG--- 1459
Cdd:COG5422    631 ARYPLLLEEVLKFTDPDNPDTEDIPKVIDMLREFLSRLNFESGKAEN--RGDLFH-------LNQQLLFKPEYVNLGlnd 701
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1460 -PRKFLHSGKLY---KAKSNKELYG----FLFNDFLLLTQItKPLGSSGTDKVFSPKSNLQYkMYKTPIFLNEVLVKLPT 1531
Cdd:COG5422    702 eYRKIIFKGVLKrkaKSKTDGSLRGdiqfFLLDNMLLFCKA-KAVNKWRQHKVFQRPIPLEL-LFISPDEDSPDRAEYLK 779
                          330       340       350       360       370
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1532 D-PSGD--EPIFHISHIDRVY-------------TLRAESINERTAWVQKIK 1567
Cdd:COG5422    780 PaPSADvlDPAYNTKPPKNAYgfelygngqryqiTLYAETHAGRDTWLEHIK 831
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
363-684 6.93e-19

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 93.46  E-value: 6.93e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  363 LELEKRRQALLEQQRKEQERLAQLERAEQERKERERqEQERKRQLELEKQLEKQrelerqreeerrkeIERREAAKRELE 442
Cdd:COG1196    234 LRELEAELEELEAELEELEAELEELEAELAELEAEL-EELRLELEELELELEEA--------------QAEEYELLAELA 298
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  443 R-QRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRI 521
Cdd:COG1196    299 RlEQDIARLEERRRELEERLEELEEELAELEEELEELEEELEELEEELEEAEEELEEAEAELAEAEEALLEAEAELAEAE 378
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  522 AEithlqqqlqesqqmlgrlipEKQILNDQLKQVQQNSLHRDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEID 601
Cdd:COG1196    379 EE--------------------LEELAEELLEALRAAAELAAQLEELEEAEEALLERLERLEEELEELEEALAELEEEEE 438
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  602 IFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEK 681
Cdd:COG1196    439 EEEEALEEAAEEEAELEEEEEALLELLAELLEEAALLEAALAELLEELAEAAARLLLLLEAEADYEGFLEGVKAALLLAG 518

                   ...
gi 1034627469  682 LKR 684
Cdd:COG1196    519 LRG 521
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
335-638 1.62e-15

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 82.80  E-value: 1.62e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLPV---TFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQER-----KRQ 406
Cdd:TIGR02168  218 LKAELRELELALLVlrlEELREELEELQEELKEAEEELEELTAELQELEEKLEELRLEVSELEEEIEELQKElyalaNEI 297
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  407 LELEKQLEKQRELERqreeerrkeierreAAKRELER-QRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEAL 485
Cdd:TIGR02168  298 SRLEQQKQILRERLA--------------NLERQLEElEAQLEELESKLDELAEELAELEEKLEELKEELESLEAELEEL 363
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  486 NDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDsL 565
Cdd:TIGR02168  364 EAELEELESRLEELEEQLETLRSKVAQLELQIASLNNEIERLEARLERLEDRRERLQQEIEELLKKLEEAELKELQAE-L 442
                          250       260       270       280       290       300       310
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  566 VTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELR-EIHNKQQLQKQKSMEAERLKQKEQERK 638
Cdd:TIGR02168  443 EELEEELEELQEELERLEEALEELREELEEAEQALDAAERELAQLQaRLDSLERLQENLEGFSEGVKALLKNQS 516
SH3_9 pfam14604
Variant SH3 domain;
1163-1210 1.72e-15

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 71.88  E-value: 1.72e-15
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:pfam14604    2 LYPYEPKDDDELSLQRGDVITVIEESEDGWWEGINTGRTGLVPANYVE 49
EF-hand_4 pfam12763
Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin ...
224-307 2.06e-15

Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin cytoskeleton-regulatory complex END3 and similar proteins from fungi and closely related species.


Pssm-ID: 289529  Cd Length: 104  Bit Score: 73.56  E-value: 2.06e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  224 KYRQLFNSHdKTMSGHLTGPQARTILMQSSLPQAQLASIWNLSDIDQDGKLTAEEFILAMHLIDVAMSG--QPLPPVLPP 301
Cdd:pfam12763   11 KYWEIFSGL-KPENNKLTGDQVSPVLKNSRLPDDQLAKIWDLADIDSDGKLDFEEFCIAMRLIFDLVNGniADVPDELPD 89

                   ....*.
gi 1034627469  302 EYIPPS 307
Cdd:pfam12763   90 WLVPGS 95
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
914-967 3.61e-15

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 71.03  E-value: 3.61e-15
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469   914 EGLQAQALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQ-GQKGWFPKSYVK 967
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKSDdGWWKGRLGrGKEGLFPSNYVE 56
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
1003-1056 6.23e-15

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 70.64  E-value: 6.23e-15
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  1003 SGEEFIAMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGD-KAGVFPSNYVR 1056
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKsDDGWWKGRLGRgKEGLFPSNYVE 56
EF-hand_4 pfam12763
Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin ...
21-99 7.73e-15

Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin cytoskeleton-regulatory complex END3 and similar proteins from fungi and closely related species.


Pssm-ID: 289529  Cd Length: 104  Bit Score: 72.02  E-value: 7.73e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469   21 ERAKHDQQFHSLKPISGFITGDQARNFFFQSGLPQPVLAQIWALADMNNDGRMDQVEFSIAMKLIKLKLQGYQ--LPSAL 98
Cdd:pfam12763    8 EIKKYWEIFSGLKPENNKLTGDQVSPVLKNSRLPDDQLAKIWDLADIDSDGKLDFEEFCIAMRLIFDLVNGNIadVPDEL 87

                   .
gi 1034627469   99 P 99
Cdd:pfam12763   88 P 88
PTZ00121 PTZ00121
MAEBL; Provisional
331-738 1.66e-14

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 79.80  E-value: 1.66e-14
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  331 EEPVLEDEQQQLEKKLPVtfeDKKRENFERGNLELEKRRQallEQQRKEQERLAQLERAEQERKERERQEQERKRQLELE 410
Cdd:PTZ00121  1351 EAEAAADEAEAAEEKAEA---AEKKKEEAKKKADAAKKKA---EEKKKADEAKKKAEEDKKKADELKKAAAAKKKADEAK 1424
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  411 KQLEKQRELERQREEERRKEIERReaAKRELERQRQLE-----WERNRRQELLNQRNKEQEDivVLKAKKKTLEFELEAL 485
Cdd:PTZ00121  1425 KKAEEKKKADEAKKKAEEAKKADE--AKKKAEEAKKAEeakkkAEEAKKADEAKKKAEEAKK--ADEAKKKAEEAKKKAD 1500
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  486 NDKKHQLEGKLQDiRCRLTTQRQEIESTNKSRELRIAEitHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDSL 565
Cdd:PTZ00121  1501 EAKKAAEAKKKAD-EAKKAEEAKKADEAKKAEEAKKAD--EAKKAEEKKKADELKKAEELKKAEEKKKAEEAKKAEEDKN 1577
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  566 VTLKRALEAK--ELARQHLRDQLDEVEK-----------ETRSKLQEIDIFNNQLKELREIHNKQQLQKQKS-----MEA 627
Cdd:PTZ00121  1578 MALRKAEEAKkaEEARIEEVMKLYEEEKkmkaeeakkaeEAKIKAEELKKAEEEKKKVEQLKKKEAEEKKKAeelkkAEE 1657
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  628 ERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRP----RKLHEEEK-----LKREESVKKKDGEEKGK 698
Cdd:PTZ00121  1658 ENKIKAAEEAKKAEEDKKKAEEAKKAEEDEKKAAEALKKEAEEAKKaeelKKKEAEEKkkaeeLKKAEEENKIKAEEAKK 1737
                          410       420       430       440
                   ....*....|....*....|....*....|....*....|
gi 1034627469  699 QEAQDKLGRLFHQHQEPAKPAVQAPWSTAEKGPLTISAQE 738
Cdd:PTZ00121  1738 EAEEDKKKAEEAKKDEEEKKKIAHLKKEEEKKAEEIRKEK 1777
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
1075-1134 6.17e-14

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 67.56  E-value: 6.17e-14
                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  1075 KPEIAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELqargKKRQIGWFPANYVK 1134
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKSDDGWWKGRL----GRGKEGLFPSNYVE 56
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
741-802 8.27e-14

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 67.18  E-value: 8.27e-14
                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1034627469   741 KVVYYRALYPFESRSHDEITIQPGDIVMVkgewVDESqtgEPGWLGGELK-GKTGWFPANYAE 802
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITV----LEKS---DDGWWKGRLGrGKEGLFPSNYVE 56
DUF5401 pfam17380
Family of unknown function (DUF5401); This is a family of unknown function found in ...
324-726 3.00e-13

Family of unknown function (DUF5401); This is a family of unknown function found in Chromadorea.


Pssm-ID: 375164 [Multi-domain]  Cd Length: 722  Bit Score: 75.16  E-value: 3.00e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  324 SVDQRLPEEPVLEDEQQQLEKKLpvtfEDKKRENFERGNL-ELEKRRQALLEQQRK---EQERLA-----QLERAEQERK 394
Cdd:pfam17380  283 AVSERQQQEKFEKMEQERLRQEK----EEKAREVERRRKLeEAEKARQAEMDRQAAiyaEQERMAmererELERIRQEER 358
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  395 ERErqeQERKRQLELEKQLEKQrelerqreeerrkeierreaakRELERqrqLEWERNRRQELLNQrnkeqedivvlkak 474
Cdd:pfam17380  359 KRE---LERIRQEEIAMEISRM----------------------RELER---LQMERQQKNERVRQ-------------- 396
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  475 kktlefELEALNDKKHQLEGKLQDIRcrltTQRQEIESTNKSRElriaeithlqqqlqesqqmlgrlipekqilndQLKQ 554
Cdd:pfam17380  397 ------ELEAARKVKILEEERQRKIQ----QQKVEMEQIRAEQE--------------------------------EARQ 434
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  555 VQQNSLHRDSLVTLKRALEaKELARQHLRDQLDEVEKETRSKLQEIDifnnqlkelREIHNKQQLQKQKSMEAERlKQKE 634
Cdd:pfam17380  435 REVRRLEEERAREMERVRL-EEQERQQQVERLRQQEEERKRKKLELE---------KEKRDRKRAEEQRRKILEK-ELEE 503
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  635 QERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGRLFHQHQE 714
Cdd:pfam17380  504 RKQAMIEEERKRKLLEKEMEERQKAIYEEERRREAEEERRKQQEMEERRRIQEQMRKATEERSRLEAMEREREMMRQIVE 583
                          410
                   ....*....|..
gi 1034627469  715 PAKPAVQAPWST 726
Cdd:pfam17380  584 SEKARAEYEATT 595
SH3_9 pfam14604
Variant SH3 domain;
747-802 5.80e-12

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 61.86  E-value: 5.80e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKGEwvdesqtGEPGWLGGELKGKTGWFPANYAE 802
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITVIEE-------SEDGWWEGINTGRTGLVPANYVE 49
SH3_1 pfam00018
SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal ...
919-962 7.70e-10

SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 394975 [Multi-domain]  Cd Length: 47  Bit Score: 55.67  E-value: 7.70e-10
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQ-DMWWFGEVQ-GQKGWFP 962
Cdd:pfam00018    1 VALYDYTAQEPDELSFKKGDIIIVLEKSeDGWWKGRNKgGKEGLIP 46
PH smart00233
Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The ...
1463-1570 1.41e-09

Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The domain family possesses multiple functions including the abilities to bind inositol phosphates, and various proteins. PH domains have been found to possess inserted domains (such as in PLC gamma, syntrophins) and to be inserted within other domains. Mutations in Brutons tyrosine kinase (Btk) within its PH domain cause X-linked agammaglobulinaemia (XLA) in patients. Point mutations cluster into the positively charged end of the molecule around the predicted binding site for phosphatidylinositol lipids.


Pssm-ID: 214574 [Multi-domain]  Cd Length: 102  Bit Score: 56.79  E-value: 1.41e-09
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  1463 FLHSGKLYKAKSN-----KELYGFLFNDFLLLtqitkplgssgtdkvFSPKSNLQYKMYKTPIFLNEVLVKLPTDPSGDE 1537
Cdd:smart00233    1 VIKEGWLYKKSGGgkkswKKRYFVLFNSTLLY---------------YKSKKDKKSYKPKGSIDLSGCTVREAPDPDSSK 65
                            90       100       110
                    ....*....|....*....|....*....|....*.
gi 1034627469  1538 P--IFHISHIDR-VYTLRAESINERTAWVQKIKAAS 1570
Cdd:smart00233   66 KphCFEIKTSDRkTLLLQAESEEEREKWVEALRKAI 101
SH3_9 pfam14604
Variant SH3 domain;
1009-1056 6.90e-09

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 53.00  E-value: 6.90e-09
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITVIEEsEDGWWEGINTGRTGLVPANYVE 49
SH3_2 pfam07653
Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in ...
1079-1136 1.79e-08

Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 429575 [Multi-domain]  Cd Length: 54  Bit Score: 52.21  E-value: 1.79e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGElqaRGKKRqiGWFPANYVKLL 1136
Cdd:pfam07653    2 GRVIFDYVGTDKNGLTLKKGDVVKVLGKDNDGWWEGE---TGGRV--GLVPSTAVEEI 54
GBP_C cd16269
Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal ...
331-414 7.25e-05

Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal domain. Guanylate-binding proteins (GBPs) are synthesized after activation of the cell by interferons. The biochemical properties of GBPs are clearly different from those of Ras-like and heterotrimeric GTP-binding proteins. They bind guanine nucleotides with low affinity (micromolar range), are stable in their absence, and have a high turnover GTPase. In addition to binding GDP/GTP, they have the unique ability to bind GMP with equal affinity and hydrolyze GTP not only to GDP, but also to GMP. This C-terminal domain has been shown to mediate inhibition of endothelial cell proliferation by inflammatory cytokines.


Pssm-ID: 293879 [Multi-domain]  Cd Length: 291  Bit Score: 46.80  E-value: 7.25e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  331 EEPVLEDEQQQLEKKLpvtfEDKKReNFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELE 410
Cdd:cd16269    213 ERKLLEEQQRELEQKL----EDQER-SYEEHLRQLKEKMEEERENLLKEQERALESKLKEQEALLEEGFKEQAELLQEEI 287

                   ....
gi 1034627469  411 KQLE 414
Cdd:cd16269    288 RSLK 291
FRQ1 COG5126
Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms];
212-284 2.23e-03

Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms];


Pssm-ID: 444056 [Multi-domain]  Cd Length: 137  Bit Score: 40.16  E-value: 2.23e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  212 VAEWAVPQSSRLKYRQLFNSHDKTMSGHLTGPQARTILMQSSLPQAQLASIWNLSDIDQDGKLTAEEFILAMH 284
Cdd:COG5126     58 GMESLFEATVEPFARAAFDLLDTDGDGKISADEFRRLLTALGVSEEEADELFARLDTDGDGKISFEEFVAAVR 130
OmpH smart00935
Outer membrane protein (OmpH-like); This family includes outer membrane proteins such as OmpH ...
335-416 2.50e-03

Outer membrane protein (OmpH-like); This family includes outer membrane proteins such as OmpH among others. Skp (OmpH) has been characterized as a molecular chaperone that interacts with unfolded proteins as they emerge in the periplasm from the Sec translocation machinery.


Pssm-ID: 214922 [Multi-domain]  Cd Length: 140  Bit Score: 39.87  E-value: 2.50e-03
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469   335 LEDEQQQLEKKLpvtfeDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLE 414
Cdd:smart00935   23 LEKEFKKRQAEL-----EKLEKELQKLKEKLQKDAATLSEAAREKKEKELQKKVQEFQRKQQKLQQDLQKRQQEELQKIL 97

                    ..
gi 1034627469   415 KQ 416
Cdd:smart00935   98 DK 99
COG5038 COG5038
Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];
1593-1718 4.09e-03

Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];


Pssm-ID: 227371 [Multi-domain]  Cd Length: 1227  Bit Score: 42.05  E-value: 4.09e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1593 TGIGRLMVNVVEGIELKPCRSH--GKSNPYCEVTMGSQCH-ITKTIQDTLNPKWNSNCQFFIRDLEQEvLCITVFERDQF 1669
Cdd:COG5038    433 TAIGVVEVKIKSAEGLKKSDSTinGTVDPYITVTFSDRVIgKTRVKKNTLNPVWNETFYILLNSFTDP-LNLSLYDFNSF 511
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1670 SPDDFLGRTEIRVADIKKDQGSKGPVTKcLLLHEVPTGEIVvrLDLQLF 1718
Cdd:COG5038    512 KSDKVVGSTQLDLALLHQNPVKKNELYE-FLRNTKNVGRLT--YDLRFF 557
 
Name Accession Description Interval E-value
PH_13 pfam16652
Pleckstrin homology domain;
1440-1582 4.01e-92

Pleckstrin homology domain;


Pssm-ID: 465218  Cd Length: 143  Bit Score: 294.30  E-value: 4.01e-92
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1440 VQCEGLSEQLVFNSVTNCLGPRKFLHSGKLYKAKSNKELYGFLFNDFLLLTQITKPLGSSGTDKVFSPKSNLQYKMYKTP 1519
Cdd:pfam16652    1 VQCEGLSEQLVFNSLTNCLGPRKLLHSGKLYKVKSNKELVGFLFNDFLLLTQPVKPLSSAGTDKLFSSKSNIQYKMYKTP 80
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1520 IFLNEVLVKLPTDPSGDEPIFHISHIDRVYTLRAESINERTAWVQKIKAASELYIETEKKKRE 1582
Cdd:pfam16652   81 IFLNEVMVKLPTDPSSSEPTFQLSHIDRVYTLKAESPNERTAWVKKIKEASELYIETEKKKRE 143
PH_ITSN cd13264
Intersectin Pleckstrin homology (PH) domain; ITSNs, an adaptor protein family, play a role in ...
1448-1579 1.60e-84

Intersectin Pleckstrin homology (PH) domain; ITSNs, an adaptor protein family, play a role in endo- and exocytosis, actin cytoskeleton rearrangement and signal transduction. There are two human ITSN genes: ITSN1 and ITSN2. They share significant sequence identity and a similar domain structure having both short and long isoforms produced by alternative splicing. The short isoform (ITSN-S) consists of two Eps15 homology domains (EH1 and EH2), a coiled-coil region (CCR) and five Src homology 3 domains (SH3A-E). The EH domains bind to Asn-Pro-Phe motifs and are implicated in endocytosis and vesicle transport. The SH3 domains bind to proline-rich sequences and are commonly found in proteins implicated in cell signalling pathways, cytoskeletal organization and membrane traffic. The long isoform (ITSN-L) contains three additional C-terminal domains, a Dbl homology domain (DH), a Pleckstrin homology domain (PH) and a C2 domain. The tandem DH-PH domains are present in all Dbl family of GEFs. ITSN acts specifically on Cdc42 through its DH domain with no portion of the PH domain making contact with Cdc42. This is in contrast to Dbs which requires the PH domain for full catalytic activity. The ITSN PH domain binds phosphoinositides. C2 domains are usually involved in Ca2+-dependent and Ca2+-independent phospholipid binding. There are more than 30 proteins that interact with ITSNs. ITSN-S is present in mammals, frogs, flies and nematodes, while ITSN-L is present only in vertebrates. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 270084  Cd Length: 132  Bit Score: 272.02  E-value: 1.60e-84
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1448 QLVFNSVTNCLGPRKFLHSGKLYKAKSNKELYGFLFNDFLLLTQITKPLGSSGTDKVFSPKSNLQYKMYKTPIFLNEVLV 1527
Cdd:cd13264      1 QLIFNSVTNCLGPRKFLHSGKLYKAKSNKELYGFLFNDFLLLTQPIKPLGSSGNDFVFDNKANIQYKMYKTPIFLNEVLV 80
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1528 KLPTDPSGDEPIFHISHIDRVYTLRAESINERTAWVQKIKAASELYIETEKK 1579
Cdd:cd13264     81 KLPTDPSGDEPIFHISHIDRVYTLRAESINERTAWVQKIKAASELYIETEKK 132
C2_Intersectin cd08375
C2 domain present in Intersectin; A single instance of the C2 domain is located C terminally ...
1582-1716 4.07e-83

C2 domain present in Intersectin; A single instance of the C2 domain is located C terminally in the intersectin protein. Intersectin functions as a scaffolding protein, providing a link between the actin cytoskeleton and the components of endocytosis and plays a role in signal transduction. In addition to C2, intersectin contains several additional domains including: Eps15 homology domains, SH3 domains, a RhoGEF domain, and a PH domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. The members here have topology I.


Pssm-ID: 176021 [Multi-domain]  Cd Length: 136  Bit Score: 268.48  E-value: 4.07e-83
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1582 EKAYLVRSQRATGIGRLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCI 1661
Cdd:cd08375      1 EKAYLARSQRASGIGRLMVVIVEGRDLKPCNSNGKSDPYCEVSMGSQEHKTKVVSDTLNPKWNSSMQFFVKDLEQDVLCI 80
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1662 TVFERDQFSPDDFLGRTEIRVADIKKD-QGSKGPVTKCLLLHEVPTGEIVVRLDLQ 1716
Cdd:cd08375     81 TVFDRDFFSPDDFLGRTEIRVADILKEtKESKGPITKRLLLHEVPTGEVVVKLDLQ 136
INTAP pfam16617
Intersectin and clathrin adaptor AP2 binding region; INTAP is a natively unstructured region ...
803-917 7.38e-72

Intersectin and clathrin adaptor AP2 binding region; INTAP is a natively unstructured region of intersectin 1 proteins, lying between the first pair of SH3 domains, that binds to the clathrin adaptor AP2. This binding forms an intersectin-AP2 complex that functions as an important regulator of clathrin-mediated SV recycling in synapses.


Pssm-ID: 435467  Cd Length: 115  Bit Score: 235.16  E-value: 7.38e-72
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  803 KIPENEVPAPVKPVTDSTsaPAPKLALRETPA-PLAV-TSSEPSTTPNNWADFSSTWPTSTNEKPETDNWDAWAAQPSLT 880
Cdd:pfam16617    1 KIPESEVPASVKPAADST--AAPKVALRETPTtPLAPpTSSESSTASNNWADFSSTWPTNSSEKAETDNWDAWAAQPSLT 78
                           90       100       110
                   ....*....|....*....|....*....|....*..
gi 1034627469  881 VPSAGQLRQRSAFTPATATGSSPSPVLGQGEKVEGLQ 917
Cdd:pfam16617   79 VPSAGQLRQRSAFTPATVTGSSPSPVLGQGEKVEGLQ 115
RhoGEF cd00160
Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Also called Dbl-homologous ...
1238-1421 6.06e-53

Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Also called Dbl-homologous (DH) domain. It appears that PH domains invariably occur C-terminal to RhoGEF/DH domains.


Pssm-ID: 238091 [Multi-domain]  Cd Length: 181  Bit Score: 183.65  E-value: 6.06e-53
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1238 RQGYIHELIVTEENYVNDLQLVTEIFQKPLMESEL-LTEKEVAMIFVNWKELIMCNIKLLKALRVRKKMSGekMPVKMIG 1316
Cdd:cd00160      1 RQEVIKELLQTERNYVRDLKLLVEVFLKPLDKELLpLSPEEVELLFGNIEEIYEFHRIFLKSLEERVEEWD--KSGPRIG 78
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1317 DILSAQLPHMQPYIRFCSRQLNGAALIQQKTDEAPDFKEFVKRLamDPRCKGMPLSSFILKPMQRVTRYPLIIKNILENT 1396
Cdd:cd00160     79 DVFLKLAPFFKIYSEYCSNHPDALELLKKLKKFNKFFQEFLEKA--ESECGRLKLESLLLKPVQRLTKYPLLLKELLKHT 156
                          170       180
                   ....*....|....*....|....*
gi 1034627469 1397 PENHPDHSHLKHALEKAEELCSQVN 1421
Cdd:cd00160    157 PDGHEDREDLKKALEAIKEVASQVN 181
RhoGEF smart00325
Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Guanine nucleotide exchange ...
1242-1422 4.47e-51

Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called Dbl-homologous (DH) domain. It appears that PH domains invariably occur C-terminal to RhoGEF/DH domains. Improved coverage.


Pssm-ID: 214619 [Multi-domain]  Cd Length: 180  Bit Score: 178.26  E-value: 4.47e-51
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  1242 IHELIVTEENYVNDLQLVTEIFQKPLMESE-LLTEKEVAMIFVNWKELIMCNIKLLKALRVRKKMSGekMPVKMIGDILS 1320
Cdd:smart00325    2 LKELLQTERNYVRDLKLLVEVFLKPLKKELkLLSPNELETLFGNIEEIYEFHRDFLDELEERIEEWD--DSVERIGDVFL 79
                            90       100       110       120       130       140       150       160
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  1321 AQLPHMQPYIRFCSRQLNGAALIQQKtDEAPDFKEFVKRLAMDPRCKGMPLSSFILKPMQRVTRYPLIIKNILENTPENH 1400
Cdd:smart00325   80 KLEEFFKIYSEYCSNHPDALELLKKL-KKNPRFQKFLKEIESSPQCRRLTLESLLLKPVQRLTKYPLLLKELLKHTPEDH 158
                           170       180
                    ....*....|....*....|..
gi 1034627469  1401 PDHSHLKHALEKAEELCSQVNE 1422
Cdd:smart00325  159 EDREDLKKALKAIKELANQVNE 180
RhoGEF pfam00621
RhoGEF domain; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called ...
1242-1421 1.09e-50

RhoGEF domain; Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases Also called Dbl-homologous (DH) domain. It appears that pfam00169 domains invariably occur C-terminal to RhoGEF/DH domains.


Pssm-ID: 459876 [Multi-domain]  Cd Length: 176  Bit Score: 177.11  E-value: 1.09e-50
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1242 IHELIVTEENYVNDLQLVTEIFQKPLMESELLTEKEVAMIFVNWKELIMCNIKLLkaLRVRKKmsgEKMPVKMIGDILSA 1321
Cdd:pfam00621    2 IKELLQTERSYVRDLEILVEVFLPPNSKPLSESEEEIKTIFSNIEEIYELHRQLL--LEELLK---EWISIQRIGDIFLK 76
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1322 QLPHMQPYIRFCSRQLNGAALIQQKTDEAPDFKEFVKRLAMDPRCKGMPLSSFILKPMQRVTRYPLIIKNILENTPENHP 1401
Cdd:pfam00621   77 FAPGFKVYSTYCSNYPKALKLLKKLLKKNPKFRAFLEELEANPECRGLDLNSFLIKPVQRIPRYPLLLKELLKHTPPDHP 156
                          170       180
                   ....*....|....*....|
gi 1034627469 1402 DHSHLKHALEKAEELCSQVN 1421
Cdd:pfam00621  157 DYEDLKKALEAIKEVAKQIN 176
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
214-309 3.57e-45

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 158.21  E-value: 3.57e-45
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469   214 EWAVPQSSRLKYRQLFNSHDKTMSGHLTGPQARTILMQSSLPQAQLASIWNLSDIDQDGKLTAEEFILAMHLIDVAMSGQ 293
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKNQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 1034627469   294 PLPPVLPPEYIPPSFR 309
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
SH3_Intersectin1_4 cd11993
Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1074-1138 7.98e-39

Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212926  Cd Length: 65  Bit Score: 139.10  E-value: 7.98e-39
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1074 KKPEIAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKRQIGWFPANYVKLLSP 1138
Cdd:cd11993      1 KKPEIAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKRQIGWFPANYVKLLSP 65
EH smart00027
Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe ...
14-108 2.37e-36

Eps15 homology domain; Pair of EF hand motifs that recognise proteins containing Asn-Pro-Phe (NPF) sequences.


Pssm-ID: 197477 [Multi-domain]  Cd Length: 96  Bit Score: 133.17  E-value: 2.37e-36
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469    14 IWAITVEERAKHDQQFHSLKP-ISGFITGDQARNFFFQSGLPQPVLAQIWALADMNNDGRMDQVEFSIAMKLIKLKLQGY 92
Cdd:smart00027    1 PWAISPEDKAKYEQIFRSLDKnQDGTVTGAQAKPILLKSGLPQTLLAKIWNLADIDNDGELDKDEFALAMHLIYRKLNGY 80
                            90
                    ....*....|....*.
gi 1034627469    93 QLPSALPPVMKQQPVA 108
Cdd:smart00027   81 PIPASLPPSLIPPSKR 96
SH3_Intersectin_4 cd11839
Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor ...
1078-1135 1.96e-35

Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212773 [Multi-domain]  Cd Length: 58  Bit Score: 129.00  E-value: 1.96e-35
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1078 IAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKRQIGWFPANYVKL 1135
Cdd:cd11839      1 IAQVIAPFTATAENQLSLAVGQLVLVRKKSPSGWWEGELQARGKKRQIGWFPANYVKL 58
SH3_Intersectin1_1 cd11987
First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
744-803 3.98e-35

First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212920 [Multi-domain]  Cd Length: 55  Bit Score: 128.19  E-value: 3.98e-35
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVkgewvDESQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11987      1 YYRALYPFEARSHDEITIQPGDIVMV-----DESQTGEPGWLGGELKGKTGWFPANYAEK 55
SH3_Intersectin1_5 cd11995
Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1158-1211 8.79e-34

Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212928 [Multi-domain]  Cd Length: 54  Bit Score: 124.30  E-value: 8.79e-34
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1158 CQVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11995      1 CQVIGMYDYTAQNDDELAFSKGQIINVLNKEDPDWWKGELNGQVGLFPSNYVKL 54
SH3_Intersectin1_3 cd11991
Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1006-1057 5.24e-33

Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212924  Cd Length: 52  Bit Score: 122.01  E-value: 5.24e-33
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11991      1 EYVAMYTYESNEQGDLTFQQGDVILVTKKDGDWWTGTVGDKTGVFPSNYVRP 52
SH3_Intersectin_5 cd11840
Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor ...
1159-1211 9.88e-31

Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212774 [Multi-domain]  Cd Length: 53  Bit Score: 115.59  E-value: 9.88e-31
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11840      1 QVIALFPYTAQNEDELSFQKGDIINVLSKDDPDWWRGELNGQTGLFPSNYVEP 53
SH3_Intersectin1_2 cd11989
Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
917-968 1.01e-30

Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212922 [Multi-domain]  Cd Length: 52  Bit Score: 115.58  E-value: 1.01e-30
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11989      1 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYVKL 52
SH3_Intersectin_1 cd11836
First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor ...
744-803 1.17e-29

First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212770 [Multi-domain]  Cd Length: 55  Bit Score: 112.45  E-value: 1.17e-29
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVkgewvDESQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11836      1 KYRALYAFEARNPDEISFQPGDIIQV-----DESQVAEPGWLAGELKGKTGWFPANYVEK 55
SH3_Intersectin_3 cd11838
Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor ...
1006-1057 2.43e-29

Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. The SH3C of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212772 [Multi-domain]  Cd Length: 52  Bit Score: 111.35  E-value: 2.43e-29
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11838      1 EYIALYPYESNEPGDLTFNAGDVILVTKKDGEWWTGTIGDRTGIFPSNYVRP 52
SH3_Intersectin2_5 cd11996
Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1158-1211 8.18e-29

Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212929 [Multi-domain]  Cd Length: 54  Bit Score: 110.07  E-value: 8.18e-29
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1158 CQVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11996      1 CQVIAMYDYTANNEDELSFSKGQLINVLNKDDPDWWQGEINGVTGLFPSNYVKM 54
SH3_Intersectin_2 cd11837
Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor ...
917-968 1.32e-28

Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212771 [Multi-domain]  Cd Length: 53  Bit Score: 109.38  E-value: 1.32e-28
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQ-GQKGWFPKSYVKL 968
Cdd:cd11837      1 TATALYPWRAKKENHLSFAKGDIITVLEQQEMWWFGELEgGEEGWFPKSYVKE 53
SH3_Intersectin2_4 cd11994
Fourth Src homology 3 domain (or SH3D) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1078-1136 9.40e-28

Fourth Src homology 3 domain (or SH3D) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fourth SH3 domain (or SH3D) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212927  Cd Length: 59  Bit Score: 107.32  E-value: 9.40e-28
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469 1078 IAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKRQIGWFPANYVKLL 1136
Cdd:cd11994      1 IAQVTTAYVASGVEQLSLSPGQLILILKKNSSGWWLGELQARGKKRQKGWFPASHVKLL 59
SH3_Intersectin2_2 cd11990
Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
917-968 2.97e-27

Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212923 [Multi-domain]  Cd Length: 52  Bit Score: 105.51  E-value: 2.97e-27
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11990      1 KAQALCSWTAKKDNHLNFSKNDIITVLEQQENWWFGEVHGGRGWFPKSYVKL 52
EH cd00052
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and ...
225-291 2.03e-25

Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and signal transduction. The alignment contains a pair of EF-hand motifs, typically one of them is canonical and binds to Ca2+, while the other may not bind to Ca2+. A hydrophobic binding pocket is formed by residues from both EF-hand motifs. The EH domain binds to proteins containing NPF (class I), [WF]W or SWG (class II), or H[TS]F (class III) sequence motifs.


Pssm-ID: 238009 [Multi-domain]  Cd Length: 67  Bit Score: 100.76  E-value: 2.03e-25
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  225 YRQLFNSHDKTMSGHLTGPQARTILMQSSLPQAQLASIWNLSDIDQDGKLTAEEFILAMHLIDVAMS 291
Cdd:cd00052      1 YDQIFRSLDPDGDGLISGDEARPFLGKSGLPRSVLAQIWDLADTDKDGKLDKEEFAIAMHLIALALN 67
EH cd00052
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and ...
26-90 2.91e-25

Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and signal transduction. The alignment contains a pair of EF-hand motifs, typically one of them is canonical and binds to Ca2+, while the other may not bind to Ca2+. A hydrophobic binding pocket is formed by residues from both EF-hand motifs. The EH domain binds to proteins containing NPF (class I), [WF]W or SWG (class II), or H[TS]F (class III) sequence motifs.


Pssm-ID: 238009 [Multi-domain]  Cd Length: 67  Bit Score: 100.37  E-value: 2.91e-25
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469   26 DQQFHSLKPI-SGFITGDQARNFFFQSGLPQPVLAQIWALADMNNDGRMDQVEFSIAMKLIKLKLQ 90
Cdd:cd00052      2 DQIFRSLDPDgDGLISGDEARPFLGKSGLPRSVLAQIWDLADTDKDGKLDKEEFAIAMHLIALALN 67
C2 pfam00168
C2 domain;
1596-1690 1.39e-24

C2 domain;


Pssm-ID: 425499 [Multi-domain]  Cd Length: 104  Bit Score: 99.70  E-value: 1.39e-24
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHI--TKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPDD 1673
Cdd:pfam00168    1 GRLTVTVIEAKNLPPKDGNGTSDPYVKVYLLDGKQKkkTKVVKNTLNPVWNETFTFSVPDPENAVLEIEVYDYDRFGRDD 80
                           90
                   ....*....|....*..
gi 1034627469 1674 FLGRTEIRVADIKKDQG 1690
Cdd:pfam00168   81 FIGEVRIPLSELDSGEG 97
SH3_Intersectin2_3 cd11992
Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1006-1056 3.76e-24

Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (SH3C) of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212925  Cd Length: 52  Bit Score: 96.62  E-value: 3.76e-24
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd11992      1 EYIALYPYSSSEPGDLTFNEGEEILVTQKDGEWWTGSIEDRTGIFPSNYVR 51
C2 smart00239
Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, ...
1597-1693 1.02e-23

Protein kinase C conserved region 2 (CalB); Ca2+-binding motif present in phospholipases, protein kinases C, and synaptotagmins (among others). Some do not appear to contain Ca2+-binding sites. Particular C2s appear to bind phospholipids, inositol polyphosphates, and intracellular proteins. Unusual occurrence in perforin. Synaptotagmin and PLC C2s are permuted in sequence with respect to N- and C-terminal beta strands. SMART detects C2 domains using one or both of two profiles.


Pssm-ID: 214577 [Multi-domain]  Cd Length: 101  Bit Score: 97.17  E-value: 1.02e-23
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  1597 RLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHI---TKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPDD 1673
Cdd:smart00239    1 TLTVKIISARNLPPKDKGGKSDPYVKVSLDGDPKEkkkTKVVKNTLNPVWNETFEFEVPPPELAELEIEVYDKDRFGRDD 80
                            90       100
                    ....*....|....*....|
gi 1034627469  1674 FLGRTEIRVADIKKDQGSKG 1693
Cdd:smart00239   81 FIGQVTIPLSDLLLGGRHEK 100
C2 cd00030
C2 domain; The C2 domain was first identified in PKC. C2 domains fold into an 8-standed ...
1598-1691 2.10e-23

C2 domain; The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 175973 [Multi-domain]  Cd Length: 102  Bit Score: 96.37  E-value: 2.10e-23
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1598 LMVNVVEGIELKPCRSHGKSNPYCEVTMGS-QCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPDDFLG 1676
Cdd:cd00030      1 LRVTVIEARNLPAKDLNGKSDPYVKVSLGGkQKFKTKVVKNTLNPVWNETFEFPVLDPESDTLTVEVWDKDRFSKDDFLG 80
                           90
                   ....*....|....*
gi 1034627469 1677 RTEIRVADIKKDQGS 1691
Cdd:cd00030     81 EVEIPLSELLDSGKE 95
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
1157-1210 2.08e-21

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 88.75  E-value: 2.08e-21
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  1157 VCQVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVN-GQVGLFPSNYVK 1210
Cdd:smart00326    2 GPQVRALYDYTAQDPDELSFKKGDIITVLEKSDDGWWKGRLGrGKEGLFPSNYVE 56
SH3_Intersectin2_1 cd11988
First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
743-803 1.61e-20

First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN2 is expected to bind many protein partners, similar to ITSN1 which has been shown to bind Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212921 [Multi-domain]  Cd Length: 57  Bit Score: 86.46  E-value: 1.61e-20
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  743 VYYRALYPFESRSHDEITIQPGDIVMVkgewvDESQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11988      2 VNYRALYPFEARNHDEMSFNAGDIIQV-----DEKTVGEPGWLYGSFQGNFGWFPCNYVEK 57
SH3 cd00174
Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction ...
1159-1208 3.95e-20

Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction domains that bind proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. Thus, they are referred to as proline-recognition domains (PRDs). SH3 domains are less selective and show more diverse specificity compared to other PRDs. They have been shown to bind peptide sequences that lack the PxxP motif; examples include the PxxDY motif of Eps8 and the RKxxYxxY sequence in SKAP55. SH3 domain containing proteins play versatile and diverse roles in the cell, including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies, among others. Many members of this superfamily are adaptor proteins that associate with a number of protein partners, facilitating complex formation and signal transduction.


Pssm-ID: 212690 [Multi-domain]  Cd Length: 51  Bit Score: 85.21  E-value: 3.95e-20
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVN-GQVGLFPSNY 1208
Cdd:cd00174      1 YARALYDYEAQDDDELSFKKGDIITVLEKDDDGWWEGELNgGREGLFPANY 51
ROM1 COG5422
RhoGEF, Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases [Signal transduction ...
1227-1567 1.45e-19

RhoGEF, Guanine nucleotide exchange factor for Rho/Rac/Cdc42-like GTPases [Signal transduction mechanisms];


Pssm-ID: 227709 [Multi-domain]  Cd Length: 1175  Bit Score: 96.11  E-value: 1.45e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1227 LLDMLTPTERKRQGYIHELIVTEENYVNDLQLVTEIFQKPLMESELLTE----KEVAMIFVNWKELIMCNIKLLKALRVR 1302
Cdd:COG5422    474 VWESLPKQEIKRQEAIYEVIYTERDFVKDLEYLRDTWIKPLEESNIIPEnarrNFIKHVFANINEIYAVNSKLLKALTNR 553
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1303 KKMSGekmPVKMIGDILSAQLPHMQPYIRFCSRQLNGAALIQQKTDEAPDFKEFVKRLAMDPRCKGMPLSSFILKPMQRV 1382
Cdd:COG5422    554 QCLSP---IVNGIADIFLDYVPKFEPFIKYGASQPYAKYEFEREKSVNPNFARFDHEVERLDESRKLELDGYLTKPTTRL 630
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1383 TRYPLIIKNILENTPENHPDHSHLKHALEKAEELCSQVNEGVREKENsdRLEWIQahvqcegLSEQLVFNSVTNCLG--- 1459
Cdd:COG5422    631 ARYPLLLEEVLKFTDPDNPDTEDIPKVIDMLREFLSRLNFESGKAEN--RGDLFH-------LNQQLLFKPEYVNLGlnd 701
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1460 -PRKFLHSGKLY---KAKSNKELYG----FLFNDFLLLTQItKPLGSSGTDKVFSPKSNLQYkMYKTPIFLNEVLVKLPT 1531
Cdd:COG5422    702 eYRKIIFKGVLKrkaKSKTDGSLRGdiqfFLLDNMLLFCKA-KAVNKWRQHKVFQRPIPLEL-LFISPDEDSPDRAEYLK 779
                          330       340       350       360       370
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1532 D-PSGD--EPIFHISHIDRVY-------------TLRAESINERTAWVQKIK 1567
Cdd:COG5422    780 PaPSADvlDPAYNTKPPKNAYgfelygngqryqiTLYAETHAGRDTWLEHIK 831
SH3_GRB2_like_C cd11805
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
1159-1210 2.78e-19

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212739 [Multi-domain]  Cd Length: 53  Bit Score: 82.68  E-value: 2.78e-19
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11805      1 RVQALYDFNPQEPGELEFRRGDIITVLDSSDPDWWKGELRGRVGIFPANYVQ 52
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
363-684 6.93e-19

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 93.46  E-value: 6.93e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  363 LELEKRRQALLEQQRKEQERLAQLERAEQERKERERqEQERKRQLELEKQLEKQrelerqreeerrkeIERREAAKRELE 442
Cdd:COG1196    234 LRELEAELEELEAELEELEAELEELEAELAELEAEL-EELRLELEELELELEEA--------------QAEEYELLAELA 298
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  443 R-QRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRI 521
Cdd:COG1196    299 RlEQDIARLEERRRELEERLEELEEELAELEEELEELEEELEELEEELEEAEEELEEAEAELAEAEEALLEAEAELAEAE 378
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  522 AEithlqqqlqesqqmlgrlipEKQILNDQLKQVQQNSLHRDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEID 601
Cdd:COG1196    379 EE--------------------LEELAEELLEALRAAAELAAQLEELEEAEEALLERLERLEEELEELEEALAELEEEEE 438
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  602 IFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEK 681
Cdd:COG1196    439 EEEEALEEAAEEEAELEEEEEALLELLAELLEEAALLEAALAELLEELAEAAARLLLLLEAEADYEGFLEGVKAALLLAG 518

                   ...
gi 1034627469  682 LKR 684
Cdd:COG1196    519 LRG 521
SH3_CD2AP-like_3 cd11875
Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This ...
1163-1211 1.78e-18

Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212808 [Multi-domain]  Cd Length: 55  Bit Score: 80.47  E-value: 1.78e-18
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKE--DPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11875      5 LFDYEAENEDELTLREGDIVTILSKDceDKGWWKGELNGKRGVFPDNFVEP 55
C2A_C2C_Synaptotagmin_like cd08391
C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a ...
1596-1713 7.38e-18

C2 domain first and third repeat in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains either the first or third repeat in Synaptotagmin-like proteins with a type-I topology.


Pssm-ID: 176037 [Multi-domain]  Cd Length: 121  Bit Score: 81.18  E-value: 7.38e-18
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELK------PCRSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQf 1669
Cdd:cd08391      1 GVLRIHVIEAQDLVakdkfvGGLVKGKSDPYVIVRVGAQTFKSKVIKENLNPKWNEVYEAVVDEVPGQELEIELFDEDP- 79
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....
gi 1034627469 1670 SPDDFLGRTEIRVADIKKdqgsKGPVTKCLLLHEVPTGEIVVRL 1713
Cdd:cd08391     80 DKDDFLGRLSIDLGSVEK----KGFIDEWLPLEDVKSGRLHLKL 119
SH3_Abi cd11826
Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor ...
1160-1209 8.83e-18

Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. They localize to sites of actin polymerization in epithelial adherens junction and immune synapses, as well as to the leading edge of lamellipodia. Vertebrates contain two Abi proteins, Abi1 and Abi2. Abi1 displays a wide expression pattern while Abi2 is highly expressed in the eye and brain. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212760 [Multi-domain]  Cd Length: 52  Bit Score: 78.52  E-value: 8.83e-18
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11826      2 VVALYDYTADKDDELSFQEGDIIYVTKKNDDGWYEGVLNGVTGLFPGNYV 51
SH3_Nostrin cd11823
Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in ...
1164-1209 1.27e-17

Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in endothelial and epithelial cells and is involved in the regulation, trafficking and targeting of endothelial NOS (eNOS). It facilitates the endocytosis of eNOS by coordinating the functions of dynamin and the Wiskott-Aldrich syndrome protein (WASP). Increased expression of Nostrin may be correlated to preeclampsia. Nostrin contains an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212757 [Multi-domain]  Cd Length: 53  Bit Score: 78.15  E-value: 1.27e-17
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11823      6 YSYTANREDELSLQPGDIIEVHEKQDDGWWLGELNGKKGIFPATYV 51
SH3_Nck_2 cd11766
Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
1163-1209 2.35e-17

Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212700 [Multi-domain]  Cd Length: 53  Bit Score: 77.31  E-value: 2.35e-17
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11766      5 KFNYEAQREDELSLRKGDRVLVLEKSSDGWWRGECNGQVGWFPSNYV 51
SH3_GRAP2_C cd11950
C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
1159-1210 1.08e-16

C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also has roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRAP2 binds to different motifs found in substrate peptides including the typical PxxP motif in hematopoietic progenitor kinase 1 (HPK1), the RxxK motif in SLP-76 and HPK1, and the RxxxxK motif in phosphatase-like protein HD-PTP. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212883 [Multi-domain]  Cd Length: 53  Bit Score: 75.63  E-value: 1.08e-16
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11950      1 QVRALYDFEALEDDELGFNSGDVIEVLDSSNPSWWKGRLHGKLGLFPANYVA 52
SH3_D21-like cd12142
Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; ...
1157-1209 1.17e-16

Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; N-terminal SH3 domain of the uncharacterized protein SH3 domain-containing protein 21, and similar uncharacterized domains, it belongs to the CD2AP-like_3 subfamily of proteins. The CD2AP-like_3 subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213018 [Multi-domain]  Cd Length: 55  Bit Score: 75.58  E-value: 1.17e-16
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1157 VCQVigMYDYTAQNDDELAFNKGQIINVLNK--EDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd12142      1 YCRV--LFDYNPVAPDELALKKGDVIEVISKetEDEGWWEGELNGRRGFFPDNFV 53
SH3_PIX cd11877
Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine ...
1159-1211 1.38e-16

Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine nucleotide exchange factors (GEFs), which activate small GTPases by exchanging bound GDP for free GTP. They act as GEFs for both Cdc42 and Rac 1, and have been implicated in cell motility, adhesion, neurite outgrowth, and cell polarity. Vertebrates contain two proteins from the PIX subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also called ARHGEF6, is localized in dendritic spines where it regulates spine morphogenesis. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. Beta-PIX play roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212810 [Multi-domain]  Cd Length: 53  Bit Score: 75.04  E-value: 1.38e-16
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11877      1 LVRAKFNFEGTNEDELSFDKGDIITVTQVVEGGWWEGTLNGKTGWFPSNYVKE 53
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
366-728 1.78e-16

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 85.76  E-value: 1.78e-16
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  366 EKRRqALLE---------QQRKEQERlaQLERAEQ--ERKERERQEQERkrQLE-LEKQLEKqrelerqreeerrkeier 433
Cdd:COG1196    155 EERR-AIIEeaagiskykERKEEAER--KLEATEEnlERLEDILGELER--QLEpLERQAEK------------------ 211
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  434 reAAK-RELerqrQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIES 512
Cdd:COG1196    212 --AERyREL----KEELKELEAELLLLKLRELEAELEELEAELEELEAELEELEAELAELEAELEELRLELEELELELEE 285
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  513 TNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQ-VQQNSLHRDSLVTLKRALEAKELARQHLRDQLDEVEK 591
Cdd:COG1196    286 AQAEEYELLAELARLEQDIARLEERRRELEERLEELEEELAElEEELEELEEELEELEEELEEAEEELEEAEAELAEAEE 365
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  592 ETRSKLQEIDifnnQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQ 671
Cdd:COG1196    366 ALLEAEAELA----EAEEELEELAEELLEALRAAAELAAQLEELEEAEEALLERLERLEEELEELEEALAELEEEEEEEE 441
                          330       340       350       360       370
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  672 RPRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGRLFHQHQEPAKPAVQAPWSTAE 728
Cdd:COG1196    442 EALEEAAEEEAELEEEEEALLELLAELLEEAALLEAALAELLEELAEAAARLLLLLE 498
SH3_GRB2_like_N cd11804
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
1161-1209 2.05e-16

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The N-terminal SH3 domain of GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212738 [Multi-domain]  Cd Length: 52  Bit Score: 74.70  E-value: 2.05e-16
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKE-DPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11804      3 VAKHDFKATAEDELSFKKGSILKVLNMEdDPNWYKAELDGKEGLIPKNYI 52
SH3_GRB2_C cd11949
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
1160-1210 2.05e-16

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRB2 binds to Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, as well as to the proline-rich C-terminus of FGRF2. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212882 [Multi-domain]  Cd Length: 53  Bit Score: 74.49  E-value: 2.05e-16
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11949      2 VQALFDFDPQEDGELGFRRGDFIEVMDNSDPNWWKGACHGQTGMFPRNYVT 52
SH3_STAM1 cd11964
Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal ...
1159-1214 2.32e-16

Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal sorting complex required for transport (ESCRT-0) and is involved in sorting ubiquitinated cargo proteins from the endosome. It may also be involved in the regulation of IL2 and GM-CSF mediated signaling, and has been implicated in neural cell survival. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212897 [Multi-domain]  Cd Length: 55  Bit Score: 74.60  E-value: 2.32e-16
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVklTTD 1214
Cdd:cd11964      2 KVRAIYDFEAAEDNELTFKAGDIITILDDSDPNWWKGETPQGTGLFPSNFV--TAD 55
SH3_CD2AP-like_2 cd11874
Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This ...
1158-1211 2.50e-16

Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This subfamily is composed of the second SH3 domain (SH3B) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3B of both proteins have been shown to bind to Cbl. In the case of CD2AP, its SH3B binds to Cbl at a site distinct from the c-Cbl/SH3A binding site. The CIN85 SH3B also binds ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212807 [Multi-domain]  Cd Length: 53  Bit Score: 74.29  E-value: 2.50e-16
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1158 CQVIgmYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11874      2 CKVL--FSYTPQNEDELELKVGDTIEVLGEVEEGWWEGKLNGKVGVFPSNFVKE 53
SH3_Ysc84p_like cd11842
Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the ...
1008-1057 4.18e-16

Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the Saccharomyces cerevisiae proteins, Ysc84p (also called LAS17-binding protein 4, Lsb4p) and Lsb3p, and similar fungal proteins. They contain an N-terminal SYLF domain (also called DUF500) and a C-terminal SH3 domain. Ysc84p localizes to actin patches and plays an important in actin polymerization during endocytosis. The N-terminal domain of both Ysc84p and Lsb3p can bind and bundle actin filaments. A study of the yeast SH3 domain interactome predicts that the SH3 domains of Lsb3p and Lsb4p may function as molecular hubs for the assembly of endocytic complexes. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212776 [Multi-domain]  Cd Length: 55  Bit Score: 74.00  E-value: 4.18e-16
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDG---DWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11842      3 VALYDFAGEQPGDLAFQKGDIITILKKSDsqnDWWTGRIGGREGIFPANYVEL 55
SH3_FCHSD_2 cd11762
Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
1163-1206 4.71e-16

Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212696 [Multi-domain]  Cd Length: 57  Bit Score: 73.59  E-value: 4.71e-16
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPD----WWKGEVNGQVGLFPS 1206
Cdd:cd11762      5 LYDYEAQSDEELSFPEGAIIRILRKDDNGvddgWWEGEFNGRVGVFPS 52
SH3_OSTF1 cd11772
Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or ...
1163-1209 5.52e-16

Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or SH3P2, is a signaling protein containing SH3 and ankyrin-repeat domains. It acts through a Src-related pathway to enhance the formation of osteoclasts and bone resorption. It also acts as a negative regulator of cell motility. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212706 [Multi-domain]  Cd Length: 53  Bit Score: 73.49  E-value: 5.52e-16
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11772      5 LYDYEAQHPDELSFEEGDLLYISDKSDPNWWKATCGGKTGLIPSNYV 51
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
343-688 9.98e-16

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 83.45  E-value: 9.98e-16
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  343 EKKLPVTfedkkRENFERGNL---ELEKRRQALlEQQR---------KEQERLAQLERAEQERKERERQEQERKRQL-EL 409
Cdd:COG1196    178 ERKLEAT-----EENLERLEDilgELERQLEPL-ERQAekaeryrelKEELKELEAELLLLKLRELEAELEELEAELeEL 251
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  410 EKQLEKQRelerqreeerrkeierreAAKRELERQRQLEweRNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKK 489
Cdd:COG1196    252 EAELEELE------------------AELAELEAELEEL--RLELEELELELEEAQAEEYELLAELARLEQDIARLEERR 311
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  490 HQLEGKLQdircRLTTQRQEIEstnksrelriAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQnslhrdslvtlk 569
Cdd:COG1196    312 RELEERLE----ELEEELAELE----------EELEELEEELEELEEELEEAEEELEEAEAELAEAEE------------ 365
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  570 rALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREihnkQQLQKQKSMEAERLKQKEQERKIIELEKQKEEA 649
Cdd:COG1196    366 -ALLEAEAELAEAEEELEELAEELLEALRAAAELAAQLEELEE----AEEALLERLERLEEELEELEEALAELEEEEEEE 440
                          330       340       350
                   ....*....|....*....|....*....|....*....
gi 1034627469  650 QRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKREESV 688
Cdd:COG1196    441 EEALEEAAEEEAELEEEEEALLELLAELLEEAALLEAAL 479
C2A_Synaptotagmin-like cd04024
C2 domain first repeat present in Synaptotagmin-like proteins; Synaptotagmin is a ...
1596-1715 1.56e-15

C2 domain first repeat present in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 175990 [Multi-domain]  Cd Length: 128  Bit Score: 74.77  E-value: 1.56e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIEL--KPCRSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPDD 1673
Cdd:cd04024      1 GVLRVHVVEAKDLaaKDRSGKGKSDPYAILSVGAQRFKTQTIPNTLNPKWNYWCEFPIFSAQNQLLKLILWDKDRFAGKD 80
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1674 FLGRTEIRVADIKKDqGSKGPVTKCLLLHEVPT-------GEIVVRLDL 1715
Cdd:cd04024     81 YLGEFDIALEEVFAD-GKTGQSDKWITLKSTRPgktsvvsGEIHLQFSW 128
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
335-638 1.62e-15

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 82.80  E-value: 1.62e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLPV---TFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQER-----KRQ 406
Cdd:TIGR02168  218 LKAELRELELALLVlrlEELREELEELQEELKEAEEELEELTAELQELEEKLEELRLEVSELEEEIEELQKElyalaNEI 297
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  407 LELEKQLEKQRELERqreeerrkeierreAAKRELER-QRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEAL 485
Cdd:TIGR02168  298 SRLEQQKQILRERLA--------------NLERQLEElEAQLEELESKLDELAEELAELEEKLEELKEELESLEAELEEL 363
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  486 NDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDsL 565
Cdd:TIGR02168  364 EAELEELESRLEELEEQLETLRSKVAQLELQIASLNNEIERLEARLERLEDRRERLQQEIEELLKKLEEAELKELQAE-L 442
                          250       260       270       280       290       300       310
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  566 VTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELR-EIHNKQQLQKQKSMEAERLKQKEQERK 638
Cdd:TIGR02168  443 EELEEELEELQEELERLEEALEELREELEEAEQALDAAERELAQLQaRLDSLERLQENLEGFSEGVKALLKNQS 516
SH3_9 pfam14604
Variant SH3 domain;
1163-1210 1.72e-15

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 71.88  E-value: 1.72e-15
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:pfam14604    2 LYPYEPKDDDELSLQRGDVITVIEESEDGWWEGINTGRTGLVPANYVE 49
SH3_1 pfam00018
SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal ...
1163-1206 2.03e-15

SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 394975 [Multi-domain]  Cd Length: 47  Bit Score: 71.47  E-value: 2.03e-15
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVN-GQVGLFPS 1206
Cdd:pfam00018    3 LYDYTAQEPDELSFKKGDIIIVLEKSEDGWWKGRNKgGKEGLIPS 47
EF-hand_4 pfam12763
Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin ...
224-307 2.06e-15

Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin cytoskeleton-regulatory complex END3 and similar proteins from fungi and closely related species.


Pssm-ID: 289529  Cd Length: 104  Bit Score: 73.56  E-value: 2.06e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  224 KYRQLFNSHdKTMSGHLTGPQARTILMQSSLPQAQLASIWNLSDIDQDGKLTAEEFILAMHLIDVAMSG--QPLPPVLPP 301
Cdd:pfam12763   11 KYWEIFSGL-KPENNKLTGDQVSPVLKNSRLPDDQLAKIWDLADIDSDGKLDFEEFCIAMRLIFDLVNGniADVPDELPD 89

                   ....*.
gi 1034627469  302 EYIPPS 307
Cdd:pfam12763   90 WLVPGS 95
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
348-659 2.55e-15

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 82.03  E-value: 2.55e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  348 VTFEDKKREN--FERGNlELEKrrqalLEQQRKEQERLA------------QLERAEQERKERERQEQERKRQL-ELEKQ 412
Cdd:TIGR02168  661 ITGGSAKTNSsiLERRR-EIEE-----LEEKIEELEEKIaelekalaelrkELEELEEELEQLRKELEELSRQIsALRKD 734
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  413 LEK-QRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQ 491
Cdd:TIGR02168  735 LARlEAEVEQLEERIAQLSKELTELEAEIEELEERLEEAEEELAEAEAEIEELEAQIEQLKEELKALREALDELRAELTL 814
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  492 LEGKLQDIRCRLTTQRQEIESTNKS---RELRIAEITHLQQQLQESQQMLGRLIPEkqiLNDQLKQVQQnslhrdslvtl 568
Cdd:TIGR02168  815 LNEEAANLRERLESLERRIAATERRledLEEQIEELSEDIESLAAEIEELEELIEE---LESELEALLN----------- 880
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  569 krALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQK-SMEAERLKQKEQERKIIELEKQKE 647
Cdd:TIGR02168  881 --ERASLEEALALLRSELEELSEELRELESKRSELRRELEELREKLAQLELRLEGlEVRIDNLQERLSEEYSLTLEEAEA 958
                          330
                   ....*....|..
gi 1034627469  648 EAQRRAQERDKQ 659
Cdd:TIGR02168  959 LENKIEDDEEEA 970
SH3_CIN85_3 cd12057
Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1158-1211 2.74e-15

Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CIN85. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212990 [Multi-domain]  Cd Length: 56  Bit Score: 71.47  E-value: 2.74e-15
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1158 CQVIgmYDYTAQNDDELAFNKGQIINVLNKE--DPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd12057      2 CKVL--FPYEAQNEDELTIKEGDIVTLISKDciDAGWWEGELNGRRGVFPDNFVKL 55
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
914-967 3.61e-15

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 71.03  E-value: 3.61e-15
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469   914 EGLQAQALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQ-GQKGWFPKSYVK 967
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKSDdGWWKGRLGrGKEGLFPSNYVE 56
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
1003-1056 6.23e-15

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 70.64  E-value: 6.23e-15
                            10        20        30        40        50
                    ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  1003 SGEEFIAMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGD-KAGVFPSNYVR 1056
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKsDDGWWKGRLGRgKEGLFPSNYVE 56
EF-hand_4 pfam12763
Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin ...
21-99 7.73e-15

Cytoskeletal-regulatory complex EF hand; This is an efhand family from the N-terminal of actin cytoskeleton-regulatory complex END3 and similar proteins from fungi and closely related species.


Pssm-ID: 289529  Cd Length: 104  Bit Score: 72.02  E-value: 7.73e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469   21 ERAKHDQQFHSLKPISGFITGDQARNFFFQSGLPQPVLAQIWALADMNNDGRMDQVEFSIAMKLIKLKLQGYQ--LPSAL 98
Cdd:pfam12763    8 EIKKYWEIFSGLKPENNKLTGDQVSPVLKNSRLPDDQLAKIWDLADIDSDGKLDFEEFCIAMRLIFDLVNGNIadVPDEL 87

                   .
gi 1034627469   99 P 99
Cdd:pfam12763   88 P 88
SH3_PLCgamma cd11825
Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of ...
1163-1210 7.87e-15

Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG) in response to various receptors. Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma catalyzes this reaction in tyrosine kinase-dependent signaling pathways. It is activated and recruited to its substrate at the membrane. Vertebrates contain two forms of PLCgamma, PLCgamma1, which is widely expressed, and PLCgamma2, which is primarily found in haematopoietic cells. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212759 [Multi-domain]  Cd Length: 54  Bit Score: 70.05  E-value: 7.87e-15
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQ-VGLFPSNYVK 1210
Cdd:cd11825      5 LYDYRAQRPDELSFCKHAIITNVEKEDGGWWRGDYGGKkQKWFPANYVE 53
SH3_AHI-1 cd11812
Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called ...
1160-1209 8.27e-15

Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called Jouberin, is expressed in high levels in the brain, gonad tissues, and skeletal muscle. It is an adaptor protein that interacts with the small GTPase Rab8a and regulates it distribution and function, affecting cilium formation and vesicle transport. Mutations in the AHI-1 gene can cause Joubert syndrome, a disorder characterized by brainstem malformations, cerebellar aplasia/hypoplasia, and retinal dystrophy. AHI-1 variation is also associated with susceptibility to schizophrenia and type 2 diabetes mellitus progression. AHI-1 contains WD40 and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212746 [Multi-domain]  Cd Length: 52  Bit Score: 70.23  E-value: 8.27e-15
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGE-VNGQVGLFPSNYV 1209
Cdd:cd11812      2 VVALYDYTANRSDELTIHRGDIIRVLYKDNDNWWFGSlVNGQQGYFPANYV 52
SH3_STAM cd11820
Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as ...
1159-1210 8.55e-15

Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. There are two vertebrate STAMs, STAM1 and STAM2, which may be functionally redundant; vertebrate STAMs contain ITAM motifs. They are part of the endosomal sorting complex required for transport (ESCRT-0). STAM2 deficiency in mice did not cause any obvious abnormality, while STAM1 deficiency resulted in growth retardation. Loss of both STAM1 and STAM2 in mice proved lethal, indicating that STAMs are important for embryonic development. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212754 [Multi-domain]  Cd Length: 54  Bit Score: 70.19  E-value: 8.55e-15
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11820      2 KVRALYDFEAAEDNELTFKAGEIITVLDDSDPNWWKGSNHRGEGLFPANFVT 53
SH3_STAM2 cd11963
Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST ...
1159-1215 9.96e-15

Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST (Epidermal growth factor receptor-associated protein with SH3 and TAM domain) or Hbp (Hrs binding protein), is part of the endosomal sorting complex required for transport (ESCRT-0). It plays a role in sorting mono-ubiquinated endosomal cargo for trafficking to the lysosome for degradation. It is also involved in the regulation of exocytosis. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212896 [Multi-domain]  Cd Length: 57  Bit Score: 70.05  E-value: 9.96e-15
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVklTTDM 1215
Cdd:cd11963      3 KVRALYDFEAVEDNELTFKHGEIIIVLDDSDANWWKGENHRGVGLFPSNFV--TTDL 57
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
335-708 1.14e-14

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 79.98  E-value: 1.14e-14
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLPVTFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLE 414
Cdd:COG1196    389 LEALRAAAELAAQLEELEEAEEALLERLERLEEELEELEEALAELEEEEEEEEEALEEAAEEEAELEEEEEALLELLAEL 468
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  415 KQRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDkkHQLEG 494
Cdd:COG1196    469 LEEAALLEAALAELLEELAEAAARLLLLLEAEADYEGFLEGVKAALLLAGLRGLAGAVAVLIGVEAAYEAALE--AALAA 546
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  495 KLQDIRCRLTTQRQEIESTNKSRELRIAEI----------THLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDS 564
Cdd:COG1196    547 ALQNIVVEDDEVAAAAIEYLKAAKAGRATFlpldkiraraALAAALARGAIGAAVDLVASDLREADARYYVLGDTLLGRT 626
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  565 LVTLkRALEAKELARQH---LRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIE 641
Cdd:COG1196    627 LVAA-RLEAALRRAVTLagrLREVTLEGEGGSAGGSLTGGSRRELLAALLEAEAELEELAERLAEEELELEEALLAEEEE 705
                          330       340       350       360       370       380
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  642 LEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGRL 708
Cdd:COG1196    706 ERELAEAEEERLEEELEEEALEEQLEAEREELLEELLEEEELLEEEALEELPEPPDLEELERELERL 772
SH3_GRAP_C cd11951
C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
1164-1209 1.23e-14

C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domains (SH3c) of the related proteins, GRB2 and GRAP2, have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212884  Cd Length: 53  Bit Score: 69.44  E-value: 1.23e-14
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11951      6 YDFSAEDPSQLSFRRGDIIEVLDCPDPNWWRGRISGRVGFFPRNYV 51
C2_ArfGAP cd04038
C2 domain present in Arf GTPase Activating Proteins (GAP); ArfGAP is a GTPase activating ...
1595-1680 1.30e-14

C2 domain present in Arf GTPase Activating Proteins (GAP); ArfGAP is a GTPase activating protein which regulates the ADP ribosylation factor Arf, a member of the Ras superfamily of GTP-binding proteins. The GTP-bound form of Arf is involved in Golgi morphology and is involved in recruiting coat proteins. ArfGAP is responsible for the GDP-bound form of Arf which is necessary for uncoating the membrane and allowing the Golgi to fuse with an acceptor compartment. These proteins contain an N-terminal ArfGAP domain containing the characteristic zinc finger motif (Cys-x2-Cys-x(16,17)-x2-Cys) and C-terminal C2 domain. C2 domains were first identified in Protein Kinase C (PKC). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176003 [Multi-domain]  Cd Length: 145  Bit Score: 72.74  E-value: 1.30e-14
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1595 IGRLMVNVVEGIELKPCRSHGkSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQeVLCITVFERDQFSPDDF 1674
Cdd:cd04038      1 LGLLKVRVVRGTNLAVRDFTS-SDPYVVLTLGNQKVKTRVIKKNLNPVWNEELTLSVPNPMA-PLKLEVFDKDTFSKDDS 78

                   ....*.
gi 1034627469 1675 LGRTEI 1680
Cdd:cd04038     79 MGEAEI 84
SH3_Ysc84p_like cd11842
Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the ...
1159-1211 1.65e-14

Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the Saccharomyces cerevisiae proteins, Ysc84p (also called LAS17-binding protein 4, Lsb4p) and Lsb3p, and similar fungal proteins. They contain an N-terminal SYLF domain (also called DUF500) and a C-terminal SH3 domain. Ysc84p localizes to actin patches and plays an important in actin polymerization during endocytosis. The N-terminal domain of both Ysc84p and Lsb3p can bind and bundle actin filaments. A study of the yeast SH3 domain interactome predicts that the SH3 domains of Lsb3p and Lsb4p may function as molecular hubs for the assembly of endocytic complexes. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212776 [Multi-domain]  Cd Length: 55  Bit Score: 69.37  E-value: 1.65e-14
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDP--DWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11842      1 KAVALYDFAGEQPGDLAFQKGDIITILKKSDSqnDWWTGRIGGREGIFPANYVEL 55
PTZ00121 PTZ00121
MAEBL; Provisional
331-738 1.66e-14

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 79.80  E-value: 1.66e-14
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  331 EEPVLEDEQQQLEKKLPVtfeDKKRENFERGNLELEKRRQallEQQRKEQERLAQLERAEQERKERERQEQERKRQLELE 410
Cdd:PTZ00121  1351 EAEAAADEAEAAEEKAEA---AEKKKEEAKKKADAAKKKA---EEKKKADEAKKKAEEDKKKADELKKAAAAKKKADEAK 1424
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  411 KQLEKQRELERQREEERRKEIERReaAKRELERQRQLE-----WERNRRQELLNQRNKEQEDivVLKAKKKTLEFELEAL 485
Cdd:PTZ00121  1425 KKAEEKKKADEAKKKAEEAKKADE--AKKKAEEAKKAEeakkkAEEAKKADEAKKKAEEAKK--ADEAKKKAEEAKKKAD 1500
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  486 NDKKHQLEGKLQDiRCRLTTQRQEIESTNKSRELRIAEitHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDSL 565
Cdd:PTZ00121  1501 EAKKAAEAKKKAD-EAKKAEEAKKADEAKKAEEAKKAD--EAKKAEEKKKADELKKAEELKKAEEKKKAEEAKKAEEDKN 1577
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  566 VTLKRALEAK--ELARQHLRDQLDEVEK-----------ETRSKLQEIDIFNNQLKELREIHNKQQLQKQKS-----MEA 627
Cdd:PTZ00121  1578 MALRKAEEAKkaEEARIEEVMKLYEEEKkmkaeeakkaeEAKIKAEELKKAEEEKKKVEQLKKKEAEEKKKAeelkkAEE 1657
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  628 ERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRP----RKLHEEEK-----LKREESVKKKDGEEKGK 698
Cdd:PTZ00121  1658 ENKIKAAEEAKKAEEDKKKAEEAKKAEEDEKKAAEALKKEAEEAKKaeelKKKEAEEKkkaeeLKKAEEENKIKAEEAKK 1737
                          410       420       430       440
                   ....*....|....*....|....*....|....*....|
gi 1034627469  699 QEAQDKLGRLFHQHQEPAKPAVQAPWSTAEKGPLTISAQE 738
Cdd:PTZ00121  1738 EAEEDKKKAEEAKKDEEEKKKIAHLKKEEEKKAEEIRKEK 1777
SH3_MyoIe_If_like cd11827
Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If ...
1158-1209 1.90e-14

Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If (MyoIf) are nonmuscle, unconventional, long tailed, class I myosins containing an N-terminal motor domain and a myosin tail with TH1, TH2, and SH3 domains. MyoIe interacts with the endocytic proteins, dynamin and synaptojanin-1, through its SH3 domain; it may play a role in clathrin-dependent endocytosis. In the kidney, MyoIe is critical for podocyte function and normal glomerular filtration. Mutations in MyoIe is associated with focal segmental glomerulosclerosis, a disease characterized by massive proteinuria and progression to end-stage kidney disease. MyoIf is predominantly expressed in the immune system; it plays a role in immune cell motility and innate immunity. Mutations in MyoIf may be associated with the loss of hearing. The MyoIf gene has also been found to be fused to the MLL (Mixed lineage leukemia) gene in infant acute myeloid leukemias (AML). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212761 [Multi-domain]  Cd Length: 53  Bit Score: 68.98  E-value: 1.90e-14
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1158 CQVIgmYDYTAQNDDELAFNKGQIINVLnKEDPD-WWKGEVNGQVGLFPSNYV 1209
Cdd:cd11827      2 CKAL--YAYDAQDTDELSFNEGDIIEIL-KEDPSgWWTGRLRGKEGLFPGNYV 51
SH3_Cortactin cd11959
Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src ...
1161-1211 3.19e-14

Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src kinase. It is an actin regulatory protein that binds to the Arp2/3 complex and stabilizes branched actin filaments. It is involved in cellular processes that affect cell motility, adhesion, migration, endocytosis, and invasion. It is expressed ubiquitously except in hematopoietic cells, where the homolog hematopoietic lineage cell-specific 1 (HS1) is expressed instead. Cortactin contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region interacts with the Arp2/3 complex and F-actin, and is crucial in regulating branched actin assembly. Cortactin also serves as a scaffold and provides a bridge to the actin cytoskeleton for membrane trafficking and signaling proteins that bind to its SH3 domain. Binding partners for the SH3 domain of cortactin include dynamin2, N-WASp, MIM, FGD1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212892 [Multi-domain]  Cd Length: 53  Bit Score: 68.60  E-value: 3.19e-14
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11959      3 VALYDYQAADDDEISFDPDDIITNIEMIDEGWWRGVCRGKYGLFPANYVEL 53
SH3_PSTPIP1 cd11824
Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, ...
1163-1211 5.41e-14

Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, also called CD2 Binding Protein 1 (CD2BP1), is mainly expressed in hematopoietic cells. It is a binding partner of the cell surface receptor CD2 and PTP-PEST, a tyrosine phosphatase which functions in cell motility and Rac1 regulation. It also plays a role in the activation of the Wiskott-Aldrich syndrome protein (WASP), which couples actin rearrangement and T cell activation. Mutations in the gene encoding PSTPIP1 cause the autoinflammatory disorder known as PAPA (pyogenic sterile arthritis, pyoderma gangrenosum, and acne) syndrome. PSTPIP1 contains an N-terminal F-BAR domain, PEST motifs, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212758 [Multi-domain]  Cd Length: 53  Bit Score: 67.78  E-value: 5.41e-14
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11824      5 LYDYTAQEDDELSISKGDVVAVIEKGEDGWWTVERNGQKGLVPGTYLEK 53
C2D_Tricalbin-like cd04040
C2 domain fourth repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
1598-1685 5.45e-14

C2 domain fourth repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the fifth C2 repeat, C2E, and has a type-II topology.


Pssm-ID: 176005 [Multi-domain]  Cd Length: 115  Bit Score: 69.90  E-value: 5.45e-14
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1598 LMVNVVEGIELKPCRSHGKSNPYCEVTM-GSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPDDFLG 1676
Cdd:cd04040      1 LTVDVISAENLPSADRNGKSDPFVKFYLnGEKVFKTKTIKKTLNPVWNESFEVPVPSRVRAVLKVEVYDWDRGGKDDLLG 80

                   ....*....
gi 1034627469 1677 RTEIRVADI 1685
Cdd:cd04040     81 SAYIDLSDL 89
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
1075-1134 6.17e-14

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 67.56  E-value: 6.17e-14
                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  1075 KPEIAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELqargKKRQIGWFPANYVK 1134
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITVLEKSDDGWWKGRL----GRGKEGLFPSNYVE 56
SH3 cd00174
Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction ...
1007-1054 7.09e-14

Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction domains that bind proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. Thus, they are referred to as proline-recognition domains (PRDs). SH3 domains are less selective and show more diverse specificity compared to other PRDs. They have been shown to bind peptide sequences that lack the PxxP motif; examples include the PxxDY motif of Eps8 and the RKxxYxxY sequence in SKAP55. SH3 domain containing proteins play versatile and diverse roles in the cell, including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies, among others. Many members of this superfamily are adaptor proteins that associate with a number of protein partners, facilitating complex formation and signal transduction.


Pssm-ID: 212690 [Multi-domain]  Cd Length: 51  Bit Score: 67.49  E-value: 7.09e-14
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGD-KAGVFPSNY 1054
Cdd:cd00174      2 ARALYDYEAQDDDELSFKKGDIITVLEKdDDGWWEGELNGgREGLFPANY 51
SH3_CD2AP-like_1 cd11873
First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This ...
1160-1210 7.36e-14

First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This subfamily is composed of the first SH3 domain (SH3A) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3A of both proteins bind to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic domain of the cell adhesion protein CD2. CIN85 SH3A binds to internal proline-rich motifs within the proline-rich region; this intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. CIN85 SH3A has also been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212806 [Multi-domain]  Cd Length: 53  Bit Score: 67.29  E-value: 7.36e-14
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11873      2 VIVEFDYDAEEPDELTLKVGDIITNVKKMEEGWWEGTLNGKRGMFPDNFVK 52
SH3_Endophilin_A cd11803
Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, ...
1163-1209 7.41e-14

Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They are classified into two types, A and B. Vertebrates contain three endophilin-A isoforms (A1, A2, and A3). Endophilin-A proteins are enriched in the brain and play multiple roles in receptor-mediated endocytosis. They tubulate membranes and regulate calcium influx into neurons to trigger the activation of the endocytic machinery. They are also involved in the sorting of plasma membrane proteins, actin filament assembly, and the uncoating of clathrin-coated vesicles for fusion with endosomes. Endophilins contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212737 [Multi-domain]  Cd Length: 55  Bit Score: 67.28  E-value: 7.41e-14
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11803      6 LYDFEPENEGELGFKEGDIITLTNQIDENWYEGMVNGQSGFFPVNYV 52
SH3 smart00326
Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences ...
741-802 8.27e-14

Src homology 3 domains; Src homology 3 (SH3) domains bind to target proteins through sequences containing proline and hydrophobic amino acids. Pro-containing polypeptides may bind to SH3 domains in 2 different binding orientations.


Pssm-ID: 214620 [Multi-domain]  Cd Length: 56  Bit Score: 67.18  E-value: 8.27e-14
                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1034627469   741 KVVYYRALYPFESRSHDEITIQPGDIVMVkgewVDESqtgEPGWLGGELK-GKTGWFPANYAE 802
Cdd:smart00326    1 EGPQVRALYDYTAQDPDELSFKKGDIITV----LEKS---DDGWWKGRLGrGKEGLFPSNYVE 56
SH3_Abp1_fungi_C2 cd11961
Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
1160-1211 8.41e-14

Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212894 [Multi-domain]  Cd Length: 53  Bit Score: 67.16  E-value: 8.41e-14
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11961      2 AKALYDYDAAEDNELSFFENDKIINIEFVDDDWWLGECHGSRGLFPSNYVEL 53
PTZ00121 PTZ00121
MAEBL; Provisional
328-729 1.05e-13

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 77.10  E-value: 1.05e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  328 RLPEEPVLEDEQQQLEKKLPVTfEDKKRENFERGNLELEKRRqallEQQRKEQERLAQleRAEQERKERERQEQERKRQl 407
Cdd:PTZ00121  1284 KKAEEKKKADEAKKAEEKKKAD-EAKKKAEEAKKADEAKKKA----EEAKKKADAAKK--KAEEAKKAAEAAKAEAEAA- 1355
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  408 elEKQLEKQRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQ----RNKEQEDIVVLKAKKKTLEFELE 483
Cdd:PTZ00121  1356 --ADEAEAAEEKAEAAEKKKEEAKKKADAAKKKAEEKKKADEAKKKAEEDKKKadelKKAAAAKKKADEAKKKAEEKKKA 1433
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  484 ALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRD 563
Cdd:PTZ00121  1434 DEAKKKAEEAKKADEAKKKAEEAKKAEEAKKKAEEAKKADEAKKKAEEAKKADEAKKKAEEAKKKADEAKKAAEAKKKAD 1513
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  564 SLVTLKRALEAKELARQHLRDQLDEVEK-ETRSKLQEIdifnNQLKELREIHNKQQLQKQKSME---------AERLKQK 633
Cdd:PTZ00121  1514 EAKKAEEAKKADEAKKAEEAKKADEAKKaEEKKKADEL----KKAEELKKAEEKKKAEEAKKAEedknmalrkAEEAKKA 1589
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  634 EQER-----KIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHqrpRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGRL 708
Cdd:PTZ00121  1590 EEARieevmKLYEEEKKMKAEEAKKAEEAKIKAEELKKAEEE---KKKVEQLKKKEAEEKKKAEELKKAEEENKIKAAEE 1666
                          410       420
                   ....*....|....*....|.
gi 1034627469  709 FHQHQEPAKPAVQAPWSTAEK 729
Cdd:PTZ00121  1667 AKKAEEDKKKAEEAKKAEEDE 1687
SH3_srGAP4 cd11956
Src homology 3 domain of Slit-Robo GTPase Activating Protein 4; srGAP4, also called ARHGAP4, ...
1157-1211 1.44e-13

Src homology 3 domain of Slit-Robo GTPase Activating Protein 4; srGAP4, also called ARHGAP4, is highly expressed in hematopoietic cells and may play a role in lymphocyte differentiation. It is able to stimulate the GTPase activity of Rac1, Cdc42, and RhoA. In the nervous system, srGAP4 has been detected in differentiating neurites and may be involved in axon and dendritic growth. srGAPs are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212889 [Multi-domain]  Cd Length: 55  Bit Score: 66.79  E-value: 1.44e-13
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1157 VCQVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11956      1 EVEAVACFDYTGRTAQELSFKRGDVLLLHSKASSDWWRGEHNGMRGLIPHKYISV 55
SH3_GRB2_like_C cd11805
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
1009-1055 1.47e-13

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212739 [Multi-domain]  Cd Length: 53  Bit Score: 66.50  E-value: 1.47e-13
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11805      4 ALYDFNPQEPGELEFRRGDIITVLDSsDPDWWKGELRGRVGIFPANYV 51
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
439-713 1.75e-13

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 76.25  E-value: 1.75e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  439 RELERQ---------------------RQLEWE---------RNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDK 488
Cdd:TIGR02168  196 NELERQlkslerqaekaerykelkaelRELELAllvlrleelREELEELQEELKEAEEELEELTAELQELEEKLEELRLE 275
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  489 KHQLEGKLQDIRCRLTTQRQEIEstnksrelriaeithlqqqlqesqqmlgRLIPEKQILNDQLKQVQQNSLHRD-SLVT 567
Cdd:TIGR02168  276 VSELEEEIEELQKELYALANEIS----------------------------RLEQQKQILRERLANLERQLEELEaQLEE 327
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  568 LKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHN--KQQLQKQKSMEAERLKQKEQERK-IIELEK 644
Cdd:TIGR02168  328 LESKLDELAEELAELEEKLEELKEELESLEAELEELEAELEELESRLEelEEQLETLRSKVAQLELQIASLNNeIERLEA 407
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  645 QKEEAQRRAQERDKQWLEHVQQEDEHQR-------PRKLHEEEKLK-----REESVKKKDGEEKGKQEAQDKLGRLFHQH 712
Cdd:TIGR02168  408 RLERLEDRRERLQQEIEELLKKLEEAELkelqaelEELEEELEELQeelerLEEALEELREELEEAEQALDAAERELAQL 487

                   .
gi 1034627469  713 Q 713
Cdd:TIGR02168  488 Q 488
SH3_CIN85_1 cd12052
First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1164-1210 1.86e-13

First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CIN85; SH3A binds to internal proline-rich motifs within the proline-rich region. This intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. SH3A has also been shown to bind ubiquitin and to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic end of the cell adhesion protein CD2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212985 [Multi-domain]  Cd Length: 53  Bit Score: 66.46  E-value: 1.86e-13
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12052      6 FDYKAQHEDELTITVGDIITKIKKDDGGWWEGEIKGRRGLFPDNFVR 52
YhaN COG4717
Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];
335-686 2.31e-13

Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];


Pssm-ID: 443752 [Multi-domain]  Cd Length: 641  Bit Score: 75.19  E-value: 2.31e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLPVTFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQL-ELEKQL 413
Cdd:COG4717    100 LEEELEELEAELEELREELEKLEKLLQLLPLYQELEALEAELAELPERLEELEERLEELRELEEELEELEAELaELQEEL 179
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  414 EKQRELERQREEERRKEierreaAKRELERQRQlewernRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLE 493
Cdd:COG4717    180 EELLEQLSLATEEELQD------LAEELEELQQ------RLAELEEELEEAQEELEELEEELEQLENELEAAALEERLKE 247
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  494 GK----LQDIRCRLTTQRQEIESTnksrELRIAEIThlQQQLQESQQMLGRLIPEKQILNDQLKQVQ----QNSLHRDSL 565
Cdd:COG4717    248 ARllllIAAALLALLGLGGSLLSL----ILTIAGVL--FLVLGLLALLFLLLAREKASLGKEAEELQalpaLEELEEEEL 321
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  566 VTLKRALEAK-ELARQHLRDQLDEVEkETRSKLQEIDIFNNQLKELREIHNKQQLQKQK--SMEAERLKQKEQERKIIEL 642
Cdd:COG4717    322 EELLAALGLPpDLSPEELLELLDRIE-ELQELLREAEELEEELQLEELEQEIAALLAEAgvEDEEELRAALEQAEEYQEL 400
                          330       340       350       360
                   ....*....|....*....|....*....|....*....|....*
gi 1034627469  643 EKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHE-EEKLKREE 686
Cdd:COG4717    401 KEELEELEEQLEELLGELEELLEALDEEELEEELEElEEELEELE 445
SH3 cd00174
Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction ...
917-965 2.33e-13

Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction domains that bind proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. Thus, they are referred to as proline-recognition domains (PRDs). SH3 domains are less selective and show more diverse specificity compared to other PRDs. They have been shown to bind peptide sequences that lack the PxxP motif; examples include the PxxDY motif of Eps8 and the RKxxYxxY sequence in SKAP55. SH3 domain containing proteins play versatile and diverse roles in the cell, including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies, among others. Many members of this superfamily are adaptor proteins that associate with a number of protein partners, facilitating complex formation and signal transduction.


Pssm-ID: 212690 [Multi-domain]  Cd Length: 51  Bit Score: 65.95  E-value: 2.33e-13
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQ-GQKGWFPKSY 965
Cdd:cd00174      1 YARALYDYEAQDDDELSFKKGDIITVLEKDDDgWWEGELNgGREGLFPANY 51
SH3_Src_like cd11845
Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members ...
1159-1208 2.45e-13

Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members include Src, Lck, Hck, Blk, Lyn, Fgr, Fyn, Yrk, Yes, and Brk. Src (or c-Src) proteins are cytoplasmic (or non-receptor) PTKs which are anchored to the plasma membrane. They contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation sites. Src proteins are involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. They were identified as the first proto-oncogene products, and they regulate cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Src kinases are overexpressed in a variety of human cancers, making them attractive targets for therapy. They are also implicated in acute inflammatory responses and osteoclast function. Src, Fyn, Yes, and Yrk are widely expressed, while Blk, Lck, Hck, Fgr, Lyn, and Brk show a limited expression pattern. This subfamily also includes Drosophila Src42A, Src oncogene at 42A (also known as Dsrc41) which accumulates at sites of cell-cell or cell-matrix adhesion, and participates in Drosphila development and wound healing. It has been shown to promote tube elongation in the tracheal system, is essential for proper cell-cell matching during dorsal closure, and regulates cell-cell contacts in developing Drosophila eyes. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212779 [Multi-domain]  Cd Length: 52  Bit Score: 65.68  E-value: 2.45e-13
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGE--VNGQVGLFPSNY 1208
Cdd:cd11845      1 IYVALYDYEARTDDDLSFKKGDRLQILDDSDGDWWLARhlSTGKEGYIPSNY 52
SH3_ASAP cd11821
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
1163-1208 2.61e-13

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing proteins; ASAPs are Arf GTPase activating proteins (GAPs) and they function in regulating cell growth, migration, and invasion. They contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. Vertebrates contain at least three members, ASAP1, ASAP2, and ASAP3, but some ASAP3 proteins do not seem to harbor a C-terminal SH3 domain. ASAP1 and ASAP2 show GTPase activating protein (GAP) activity towards Arf1 and Arf5. They do not show GAP activity towards Arf6, but are able to mediate Arf6 signaling by binding stably to GTP-Arf6. ASAP3 is an Arf6-specific GAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212755 [Multi-domain]  Cd Length: 53  Bit Score: 65.80  E-value: 2.61e-13
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQ---VGLFPSNY 1208
Cdd:cd11821      5 LYDCQADNDDELTFSEGEIIVVTGEEDDEWWEGHIEGDpsrRGVFPVSF 53
DUF5401 pfam17380
Family of unknown function (DUF5401); This is a family of unknown function found in ...
324-726 3.00e-13

Family of unknown function (DUF5401); This is a family of unknown function found in Chromadorea.


Pssm-ID: 375164 [Multi-domain]  Cd Length: 722  Bit Score: 75.16  E-value: 3.00e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  324 SVDQRLPEEPVLEDEQQQLEKKLpvtfEDKKRENFERGNL-ELEKRRQALLEQQRK---EQERLA-----QLERAEQERK 394
Cdd:pfam17380  283 AVSERQQQEKFEKMEQERLRQEK----EEKAREVERRRKLeEAEKARQAEMDRQAAiyaEQERMAmererELERIRQEER 358
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  395 ERErqeQERKRQLELEKQLEKQrelerqreeerrkeierreaakRELERqrqLEWERNRRQELLNQrnkeqedivvlkak 474
Cdd:pfam17380  359 KRE---LERIRQEEIAMEISRM----------------------RELER---LQMERQQKNERVRQ-------------- 396
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  475 kktlefELEALNDKKHQLEGKLQDIRcrltTQRQEIESTNKSRElriaeithlqqqlqesqqmlgrlipekqilndQLKQ 554
Cdd:pfam17380  397 ------ELEAARKVKILEEERQRKIQ----QQKVEMEQIRAEQE--------------------------------EARQ 434
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  555 VQQNSLHRDSLVTLKRALEaKELARQHLRDQLDEVEKETRSKLQEIDifnnqlkelREIHNKQQLQKQKSMEAERlKQKE 634
Cdd:pfam17380  435 REVRRLEEERAREMERVRL-EEQERQQQVERLRQQEEERKRKKLELE---------KEKRDRKRAEEQRRKILEK-ELEE 503
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  635 QERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGRLFHQHQE 714
Cdd:pfam17380  504 RKQAMIEEERKRKLLEKEMEERQKAIYEEERRREAEEERRKQQEMEERRRIQEQMRKATEERSRLEAMEREREMMRQIVE 583
                          410
                   ....*....|..
gi 1034627469  715 PAKPAVQAPWST 726
Cdd:pfam17380  584 SEKARAEYEATT 595
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
350-685 3.18e-13

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 75.10  E-value: 3.18e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  350 FEDKKRENFErgnlELEKRRQALLEQQRKEQERLAQLERAEQER--KERERQEQERKRQLEL-EKQLEKQRELERQREEE 426
Cdd:TIGR02169  168 FDRKKEKALE----ELEEVEENIERLDLIIDEKRQQLERLRRERekAERYQALLKEKREYEGyELLKEKEALERQKEAIE 243
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  427 RRKEIERREAAKRELERQrQLEWERNRRQELLNQRNKE-----QEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDirc 501
Cdd:TIGR02169  244 RQLASLEEELEKLTEEIS-ELEKRLEEIEQLLEELNKKikdlgEEEQLRVKEKIGELEAEIASLERSIAEKERELED--- 319
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  502 rLTTQRQEIESTNKSRELRIAEIThlqqqlqesqqmlgRLIPEKQILNDQLKQVQQNSlhRDSLVTLKRALEAKELARQH 581
Cdd:TIGR02169  320 -AEERLAKLEAEIDKLLAEIEELE--------------REIEEERKRRDKLTEEYAEL--KEELEDLRAELEEVDKEFAE 382
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  582 LRDQLDEVEKetrsklqEIDIFNNQLKEL-REIHNKQQLQKQKSMEAERLKQK-------------EQERKIIELEKQKE 647
Cdd:TIGR02169  383 TRDELKDYRE-------KLEKLKREINELkRELDRLQEELQRLSEELADLNAAiagieakineleeEKEDKALEIKKQEW 455
                          330       340       350
                   ....*....|....*....|....*....|....*...
gi 1034627469  648 EAQRRAQERDKQWLEHVQQEDEHQRPRKlhEEEKLKRE 685
Cdd:TIGR02169  456 KLEQLAADLSKYEQELYDLKEEYDRVEK--ELSKLQRE 491
PTZ00121 PTZ00121
MAEBL; Provisional
351-730 3.78e-13

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 75.18  E-value: 3.78e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  351 EDKKRENfERGNLELEKRRQALLEQQRKEQERLAQLER-AEQERK--ERERQEQERKRQLELEKQLEK-----QRELERQ 422
Cdd:PTZ00121  1402 EDKKKAD-ELKKAAAAKKKADEAKKKAEEKKKADEAKKkAEEAKKadEAKKKAEEAKKAEEAKKKAEEakkadEAKKKAE 1480
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  423 REEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKEQEDiVVLKAKKKTLEFELEALNDKKHQLEGKLQDiRCR 502
Cdd:PTZ00121  1481 EAKKADEAKKKAEEAKKKADEAKKAAEAKKKADEAKKAEEAKKAD-EAKKAEEAKKADEAKKAEEKKKADELKKAE-ELK 1558
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  503 LTTQRQEIESTNKSRE-----LRIAEITHLQQQLQESQQMLgRLIPEKQILNDQLKQVQQNSLHRDSLvtlKRALEAKEL 577
Cdd:PTZ00121  1559 KAEEKKKAEEAKKAEEdknmaLRKAEEAKKAEEARIEEVMK-LYEEEKKMKAEEAKKAEEAKIKAEEL---KKAEEEKKK 1634
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  578 ARQHLRDQLDEVEK--ETRSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKiiELEKQKEEAQRRAQE 655
Cdd:PTZ00121  1635 VEQLKKKEAEEKKKaeELKKAEEENKIKAAEEAKKAEEDKKKAEEAKKAEEDEKKAAEALKKE--AEEAKKAEELKKKEA 1712
                          330       340       350       360       370       380       390
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  656 RDKQWLEHVQQEDEHqrpRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGRLFHQHQEPAKPAVQAPWSTAEKG 730
Cdd:PTZ00121  1713 EEKKKAEELKKAEEE---NKIKAEEAKKEAEEDKKKAEEAKKDEEEKKKIAHLKKEEEKKAEEIRKEKEAVIEEE 1784
SH3_Cortactin_like cd11819
Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, ...
1161-1211 3.81e-13

Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, Abp1 (actin-binding protein 1), hematopoietic lineage cell-specific protein 1 (HS1), and similar proteins. These proteins are involved in regulating actin dynamics through direct or indirect interaction with the Arp2/3 complex, which is required to initiate actin polymerization. They all contain at least one C-terminal SH3 domain. Cortactin and HS1 bind Arp2/3 and actin through an N-terminal region that contains an acidic domain and several copies of a repeat domain found in cortactin and HS1. Abp1 binds actin via an N-terminal actin-depolymerizing factor (ADF) homology domain. Yeast Abp1 binds Arp2/3 directly through two acidic domains. Mammalian Abp1 does not directly interact with Arp2/3; instead, it regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. The C-terminal region of these proteins acts as an adaptor or scaffold that can connect membrane trafficking and signaling proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212753 [Multi-domain]  Cd Length: 54  Bit Score: 65.41  E-value: 3.81e-13
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVN-GQVGLFPSNYVKL 1211
Cdd:cd11819      3 KALYDYQAAEDNEISFVEGDIITQIEQIDEGWWLGVNAkGQKGLFPANYVEL 54
SH3_Sorbs_1 cd11781
First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
1161-1211 4.18e-13

First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212715 [Multi-domain]  Cd Length: 53  Bit Score: 65.44  E-value: 4.18e-13
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11781      3 RALYPFKAQSAKELSLKKGDIIYIRRQIDKNWYEGEHNGRVGIFPASYVEI 53
PTZ00121 PTZ00121
MAEBL; Provisional
326-686 4.55e-13

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 74.79  E-value: 4.55e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  326 DQRLPEEPVLEDEQQQLEKKLPVTFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERE-RQEQERK 404
Cdd:PTZ00121  1455 EAKKAEEAKKKAEEAKKADEAKKKAEEAKKADEAKKKAEEAKKKADEAKKAAEAKKKADEAKKAEEAKKADEaKKAEEAK 1534
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  405 RQLELEKQLEKQRELERQREEERRKEIErreaaKRELERQRQLEWERN---RRQELLNQRNKEQ-EDIVVLKAKKKTLEF 480
Cdd:PTZ00121  1535 KADEAKKAEEKKKADELKKAEELKKAEE-----KKKAEEAKKAEEDKNmalRKAEEAKKAEEARiEEVMKLYEEEKKMKA 1609
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  481 E----LEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEithlqqqlqesqqmlgrliPEKQILNDQLKqvq 556
Cdd:PTZ00121  1610 EeakkAEEAKIKAEELKKAEEEKKKVEQLKKKEAEEKKKAEELKKAE-------------------EENKIKAAEEA--- 1667
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  557 qnslhrdslvtlKRALEAKELARQHLRDQLDEVEKETRSKLQEidifnNQLKELREIHNKQQLQKQKsmeAERLKQKEQE 636
Cdd:PTZ00121  1668 ------------KKAEEDKKKAEEAKKAEEDEKKAAEALKKEA-----EEAKKAEELKKKEAEEKKK---AEELKKAEEE 1727
                          330       340       350       360       370
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  637 RKII--ELEKQKEEAQRRAQ-----ERDKQWLEHVQQEDEHQRPRKLHEEEKLKREE 686
Cdd:PTZ00121  1728 NKIKaeEAKKEAEEDKKKAEeakkdEEEKKKIAHLKKEEEKKAEEIRKEKEAVIEEE 1784
TPH pfam13868
Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of ...
363-686 4.56e-13

Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of eukaryotic proteins. Trichoplein or mitostatin, was first defined as a meiosis-specific nuclear structural protein. It has since been linked with mitochondrial movement. It is associated with the mitochondrial outer membrane, and over-expression leads to reduction in mitochondrial motility whereas lack of it enhances mitochondrial movement. The activity appears to be mediated through binding the mitochondria to the actin intermediate filaments (IFs). The family is in the trichohyalin-plectin-homology domain.


Pssm-ID: 464007 [Multi-domain]  Cd Length: 341  Bit Score: 72.64  E-value: 4.56e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  363 LELEKRRQALLEQQRKEQERLAQLER----AEQERKERERQEQERKRQLELEKQLEKQRELERQREEERRKEIERREAAK 438
Cdd:pfam13868   28 IAEKKRIKAEEKEEERRLDEMMEEEReralEEEEEKEEERKEERKRYRQELEEQIEEREQKRQEEYEEKLQEREQMDEIV 107
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  439 RELERQRQLEWERNRRQELLNQRnkEQEDIVVLKAKKKTLEFELEALNDKKhqlegKLQDIRcrlttQRQEIESTNKSRE 518
Cdd:pfam13868  108 ERIQEEDQAEAEEKLEKQRQLRE--EIDEFNEEQAEWKELEKEEEREEDER-----ILEYLK-----EKAEREEEREAER 175
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  519 LRIAEithlqqqlqesqqmlgrlipEKQILNDQL-KQVQQNSLHRDSLVTLKRALEAKELARQHLRDQLDEVEKETRskl 597
Cdd:pfam13868  176 EEIEE--------------------EKEREIARLrAQQEKAQDEKAERDELRAKLYQEEQERKERQKEREEAEKKAR--- 232
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  598 QEIDIFNNQLKELREIHNKQQLQKQKsMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEhvQQEDEHQRPRKLH 677
Cdd:pfam13868  233 QRQELQQAREEQIELKERRLAEEAER-EEEEFERMLRKQAEDEEIEQEEAEKRRMKRLEHRRELE--KQIEEREEQRAAE 309

                   ....*....
gi 1034627469  678 EEEKLKREE 686
Cdd:pfam13868  310 REEELEEGE 318
SH3_MLK cd11876
Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), ...
1163-1209 4.74e-13

Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Mammals have four MLKs (MLK1-4), mostly conserved in vertebrates, which contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212809 [Multi-domain]  Cd Length: 58  Bit Score: 65.23  E-value: 4.74e-13
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKE-----DPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11876      5 LFDYDARGEDELTLRRGQPVEVLSKDaavsgDEGWWTGKIGDKVGIFPSNYV 56
SH3_SH3YL1_like cd11841
Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes ...
1009-1055 4.88e-13

Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes to the plasma membrane and is required for dorsal ruffle formation. It binds phosphoinositides (PIs) with high affinity through its N-terminal SYLF domain (also called DUF500). In addition, SH3YL1 contains a C-terminal SH3 domain which has been reported to bind to N-WASP, dynamin 2, and SHIP2 (a PI 5-phosphatase). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212775  Cd Length: 54  Bit Score: 65.11  E-value: 4.88e-13
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILV---TKKDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11841      4 ALYSFEGQQPCDLSFQAGDRITVltrTDSQFDWWEGRLRGRVGIFPANYV 53
SH3_betaPIX cd12061
Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho ...
1164-1210 4.91e-13

Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho guanine nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned out of Library)-1, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and plays important roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212994 [Multi-domain]  Cd Length: 54  Bit Score: 65.09  E-value: 4.91e-13
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12061      6 FNFQQTNEDELSFSKGDVIHVTRVEEGGWWEGTHNGRTGWFPSNYVR 52
SH3_Nostrin cd11823
Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in ...
746-802 4.97e-13

Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in endothelial and epithelial cells and is involved in the regulation, trafficking and targeting of endothelial NOS (eNOS). It facilitates the endocytosis of eNOS by coordinating the functions of dynamin and the Wiskott-Aldrich syndrome protein (WASP). Increased expression of Nostrin may be correlated to preeclampsia. Nostrin contains an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212757 [Multi-domain]  Cd Length: 53  Bit Score: 65.06  E-value: 4.97e-13
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11823      3 KALYSYTANREDELSLQPGDIIEV-------HEKQDDGWWLGELNGKKGIFPATYVE 52
SH3_2 pfam07653
Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in ...
1157-1211 6.28e-13

Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 429575 [Multi-domain]  Cd Length: 54  Bit Score: 64.92  E-value: 6.28e-13
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1157 VCQVIGmyDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:pfam07653    1 YGRVIF--DYVGTDKNGLTLKKGDVVKVLGKDNDGWWEGETGGRVGLVPSTAVEE 53
SH3_PACSIN cd11843
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) ...
1160-1209 6.31e-13

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) proteins; PACSINs, also called Synaptic dynamin-associated proteins (Syndapins), act as regulators of cytoskeletal and membrane dynamics. They bind both dynamin and Wiskott-Aldrich syndrome protein (WASP), and may provide direct links between the actin cytoskeletal machinery through WASP and dynamin-dependent endocytosis. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212777 [Multi-domain]  Cd Length: 53  Bit Score: 64.75  E-value: 6.31e-13
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPD-WWKGEVNGQVGLFPSNYV 1209
Cdd:cd11843      2 VRALYDYEGQESDELSFKAGDILTKLEEEDEQgWCKGRLDGRVGLYPANYV 52
SH3 cd00174
Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction ...
1078-1132 7.53e-13

Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction domains that bind proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. Thus, they are referred to as proline-recognition domains (PRDs). SH3 domains are less selective and show more diverse specificity compared to other PRDs. They have been shown to bind peptide sequences that lack the PxxP motif; examples include the PxxDY motif of Eps8 and the RKxxYxxY sequence in SKAP55. SH3 domain containing proteins play versatile and diverse roles in the cell, including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies, among others. Many members of this superfamily are adaptor proteins that associate with a number of protein partners, facilitating complex formation and signal transduction.


Pssm-ID: 212690 [Multi-domain]  Cd Length: 51  Bit Score: 64.41  E-value: 7.53e-13
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1078 IAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQargkKRQIGWFPANY 1132
Cdd:cd00174      1 YARALYDYEAQDDDELSFKKGDIITVLEKDDDGWWEGELN----GGREGLFPANY 51
SH3_HS1 cd12073
Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 ...
1157-1212 7.74e-13

Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 (hematopoietic cell-specific Lyn substrate 1), is a cortactin homolog expressed specifically in hematopoietic cells. It is an actin regulatory protein that binds the Arp2/3 complex and stabilizes branched actin filaments. It is required for cell spreading and signaling in lymphocytes. It regulates cytoskeletal remodeling that controls lymphocyte trafficking, and it also affects tissue invasion and infiltration of leukemic B cells. Like cortactin, HS1 contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region binds the Arp2/3 complex and F-actin, while the C-terminal region acts as an adaptor or scaffold that can connect varied proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213006 [Multi-domain]  Cd Length: 55  Bit Score: 64.47  E-value: 7.74e-13
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gi 1034627469 1157 VCQViGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKLT 1212
Cdd:cd12073      1 ICAV-ALYDYQGEGDDEISFDPQETITDIEMVDEGWWKGTCHGHRGLFPANYVELL 55
SH3_Intersectin_2 cd11837
Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor ...
1159-1211 8.20e-13

Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212771 [Multi-domain]  Cd Length: 53  Bit Score: 64.31  E-value: 8.20e-13
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gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDpDWWKGEV-NGQVGLFPSNYVKL 1211
Cdd:cd11837      1 TATALYPWRAKKENHLSFAKGDIITVLEQQE-MWWFGELeGGEEGWFPKSYVKE 53
SH3_SH3YL1_like cd11841
Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes ...
1159-1210 9.39e-13

Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes to the plasma membrane and is required for dorsal ruffle formation. It binds phosphoinositides (PIs) with high affinity through its N-terminal SYLF domain (also called DUF500). In addition, SH3YL1 contains a C-terminal SH3 domain which has been reported to bind to N-WASP, dynamin 2, and SHIP2 (a PI 5-phosphatase). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212775  Cd Length: 54  Bit Score: 64.34  E-value: 9.39e-13
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gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDP--DWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11841      1 EVTALYSFEGQQPCDLSFQAGDRITVLTRTDSqfDWWEGRLRGRVGIFPANYVS 54
SH3_GRB2_N cd11946
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
1159-1211 1.09e-12

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. Its N-terminal SH3 domain binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212879 [Multi-domain]  Cd Length: 56  Bit Score: 64.28  E-value: 1.09e-12
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gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKE-DPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11946      2 EAIAKYDFKATADDELSFKRGDILKVLNEEcDQNWYKAELNGKDGFIPKNYIEM 55
SH3_PIX cd11877
Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine ...
1009-1057 1.14e-12

Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine nucleotide exchange factors (GEFs), which activate small GTPases by exchanging bound GDP for free GTP. They act as GEFs for both Cdc42 and Rac 1, and have been implicated in cell motility, adhesion, neurite outgrowth, and cell polarity. Vertebrates contain two proteins from the PIX subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also called ARHGEF6, is localized in dendritic spines where it regulates spine morphogenesis. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. Beta-PIX play roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212810 [Multi-domain]  Cd Length: 53  Bit Score: 63.87  E-value: 1.14e-12
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11877      4 AKFNFEGTNEDELSFDKGDIITVTQVvEGGWWEGTLNGKTGWFPSNYVKE 53
SH3_Abi2 cd11972
Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It ...
1159-1210 1.18e-12

Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It regulates actin cytoskeletal reorganization at adherens junctions and dendritic spines, which is important in cell morphogenesis, migration, and cognitive function. Mice deficient with Abi2 show defects in orientation and migration of lens fibers, neuronal migration, dendritic spine morphology, as well as deficits in learning and memory. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212905 [Multi-domain]  Cd Length: 61  Bit Score: 64.26  E-value: 1.18e-12
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gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11972      4 KVVAIYDYTKDKEDELSFQEGAIIYVIKKNDDGWYEGVMNGVTGLFPGNYVE 55
SH3_Intersectin_5 cd11840
Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor ...
1008-1055 1.28e-12

Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212774 [Multi-domain]  Cd Length: 53  Bit Score: 63.97  E-value: 1.28e-12
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gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11840      3 IALFPYTAQNEDELSFQKGDIInVLSKDDPDWWRGELNGQTGLFPSNYV 51
SH3_Abi1 cd11971
Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of ...
1159-1210 1.40e-12

Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of actin cytoskeletal reorganization through interactions with many protein complexes. It is part of WAVE, a nucleation-promoting factor complex, that links Rac 1 activation to actin polymerization causing lamellipodia protrusion at the plasma membrane. Abi1 interact with formins to promote protrusions at the leading edge of motile cells. It also is a target of alpha4 integrin, regulating membrane protrusions at sites of integrin engagement. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212904 [Multi-domain]  Cd Length: 59  Bit Score: 63.89  E-value: 1.40e-12
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gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11971      1 KVVAIYDYSKDKDDELSFMEGAIIYVIKKNDDGWYEGVCNGVTGLFPGNYVE 52
SH3_CD2AP_2 cd12054
Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ...
1158-1210 1.45e-12

Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CD2AP. SH3B binds to c-Cbl in a site (TPSSRPLR is the core binding motif) distinct from the c-Cbl/SH3A binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212987 [Multi-domain]  Cd Length: 55  Bit Score: 63.83  E-value: 1.45e-12
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gi 1034627469 1158 CQVigMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12054      3 CKV--LFEYVPQNEDELELKVGDIIDINEEVEEGWWSGTLNGKSGLFPSNFVK 53
SH3_CD2AP_3 cd12056
Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ...
1163-1211 1.55e-12

Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CD2AP. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212989 [Multi-domain]  Cd Length: 57  Bit Score: 63.69  E-value: 1.55e-12
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKE--DPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd12056      7 LFHYEGTNEDELDFKEGEIILIISKDtgEPGWWKGELNGKEGVFPDNFVSQ 57
SH3_FCHSD2_2 cd11894
Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain ...
1160-1210 1.58e-12

Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212827  Cd Length: 56  Bit Score: 63.80  E-value: 1.58e-12
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gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPD---WWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11894      2 VKALYDYEGQTDDELSFPEGAIIRILNKENQDddgFWEGEFNGRIGVFPSVLVE 55
SH3_Nostrin cd11823
Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in ...
917-966 1.60e-12

Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in endothelial and epithelial cells and is involved in the regulation, trafficking and targeting of endothelial NOS (eNOS). It facilitates the endocytosis of eNOS by coordinating the functions of dynamin and the Wiskott-Aldrich syndrome protein (WASP). Increased expression of Nostrin may be correlated to preeclampsia. Nostrin contains an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212757 [Multi-domain]  Cd Length: 53  Bit Score: 63.52  E-value: 1.60e-12
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gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQ-DMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11823      1 RCKALYSYTANREDELSLQPGDIIEVHEKQdDGWWLGELNGKKGIFPATYV 51
C2C_MCTP_PRT cd08377
C2 domain third repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
1596-1686 2.18e-12

C2 domain third repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); MCTPs are involved in Ca2+ signaling at the membrane. The cds in this family contain multiple C2 domains as well as a C-terminal PRT domain. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 176023 [Multi-domain]  Cd Length: 119  Bit Score: 65.40  E-value: 2.18e-12
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gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQeVLCITVFERDQFSPDDFL 1675
Cdd:cd08377      1 GFLQVKVIRASGLAAADIGGKSDPFCVLELVNARLQTHTIYKTLNPEWNKIFTFPIKDIHD-VLEVTVYDEDKDKKPEFL 79
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gi 1034627469 1676 GRTEIRVADIK 1686
Cdd:cd08377     80 GKVAIPLLSIK 90
SH3_OSTF1 cd11772
Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or ...
1007-1055 2.75e-12

Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or SH3P2, is a signaling protein containing SH3 and ankyrin-repeat domains. It acts through a Src-related pathway to enhance the formation of osteoclasts and bone resorption. It also acts as a negative regulator of cell motility. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212706 [Multi-domain]  Cd Length: 53  Bit Score: 63.09  E-value: 2.75e-12
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gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVT-KKDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11772      2 FRALYDYEAQHPDELSFEEGDLLYISdKSDPNWWKATCGGKTGLIPSNYV 51
SH3_MLK1-3 cd12059
Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine ...
1163-1209 4.31e-12

Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Little is known about the specific function of MLK1, also called MAP3K9. It is capable of activating the c-Jun N-terminal kinase pathway. Mice lacking both MLK1 and MLK2 are viable, fertile, and have normal life spans. MLK2, also called MAP3K10, is abundant in brain, skeletal muscle, and testis. It functions upstream of the MAPK, c-Jun N-terminal kinase. It binds hippocalcin, a calcium-sensor protein that protects neurons against calcium-induced cell death. Both MLK2 and hippocalcin may be associated with the pathogenesis of Parkinson's disease. MLK3, also called MAP3K11, is highly expressed in breast cancer cells and its signaling through c-Jun N-terminal kinase has been implicated in the migration, invasion, and malignancy of cancer cells. It also functions as a negative regulator of Inhibitor of Nuclear Factor-KappaB Kinase (IKK) and thus, impacts inflammation and immunity. MLKs contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212992 [Multi-domain]  Cd Length: 58  Bit Score: 62.48  E-value: 4.31e-12
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKE-----DPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd12059      5 VFDYEASAEDELTLRRGDRVEVLSKDsavsgDEGWWTGKINDRVGIFPSNYV 56
SH3_alphaPIX cd12060
Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho ...
1164-1210 4.32e-12

Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho guanine nucleotide exchange factor 6 (ARHGEF6) or Cool (Cloned out of Library)-2, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and is localized in dendritic spines where it regulates spine morphogenesis. It controls dendritic length and spine density in the hippocampus. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212993  Cd Length: 58  Bit Score: 62.71  E-value: 4.32e-12
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gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12060      8 FNFKQTNEDELSVCKGDIIYVTRVEEGGWWEGTLNGKTGWFPSNYVR 54
PRK03918 PRK03918
DNA double-strand break repair ATPase Rad50;
330-685 4.64e-12

DNA double-strand break repair ATPase Rad50;


Pssm-ID: 235175 [Multi-domain]  Cd Length: 880  Bit Score: 71.25  E-value: 4.64e-12
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gi 1034627469  330 PEEPVLEDEQQQLEK------KLPVTFEDKKRENFER-GNL--------ELEKRRQALLEQQRKEQERLAQLERAEQERK 394
Cdd:PRK03918   214 SELPELREELEKLEKevkeleELKEEIEELEKELESLeGSKrkleekirELEERIEELKKEIEELEEKVKELKELKEKAE 293
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  395 ERERQEQERKRQLELEKQLEKQRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKEQEDIVVLKA- 473
Cdd:PRK03918   294 EYIKLSEFYEEYLDELREIEKRLSRLEEEINGIEERIKELEEKEERLEELKKKLKELEKRLEELEERHELYEEAKAKKEe 373
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  474 -----KKKT------LEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKS-RELRIAEITHLQQQLQESQQMLGRL 541
Cdd:PRK03918   374 lerlkKRLTgltpekLEKELEELEKAKEEIEEEISKITARIGELKKEIKELKKAiEELKKAKGKCPVCGRELTEEHRKEL 453
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  542 IPE-----KQILNDQLKQVQQNSLHRDSLVTLKRAL-EAKELARQH-LRDQLDEVEKETRS-KLQEIDIFNNQLKELREI 613
Cdd:PRK03918   454 LEEytaelKRIEKELKEIEEKERKLRKELRELEKVLkKESELIKLKeLAEQLKELEEKLKKyNLEELEKKAEEYEKLKEK 533
                          330       340       350       360       370       380       390
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  614 HNKQQlQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQwLEHVQQEDEHQRPRKLHEEEKLKRE 685
Cdd:PRK03918   534 LIKLK-GEIKSLKKELEKLEELKKKLAELEKKLDELEEELAELLKE-LEELGFESVEELEERLKELEPFYNE 603
SH3_p67phox_C cd12046
C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, ...
1159-1210 5.24e-12

C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, also called Neutrophil cytosol factor 2 (NCF-2), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox plays a regulatory role and contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. It binds, via its C-terminal SH3 domain, to a proline-rich region of p47phox and upon activation, this complex assembles with flavocytochrome b558, the Nox2-p22phox heterodimer. Concurrently, RacGTP translocates to the membrane and interacts with the TPR domain of p67phox, which leads to the activation of NADPH oxidase. The PB1 domain of p67phox binds to its partner PB1 domain in p40phox, and this facilitates the assembly of p47phox-p67phox at the membrane. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212979 [Multi-domain]  Cd Length: 53  Bit Score: 62.13  E-value: 5.24e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12046      1 QVVALFSYEASQPEDLEFQKGDVILVLSKVNEDWLEGQCKGKIGIFPSAFVE 52
SH3_SH3RF_1 cd11786
First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
1009-1055 5.42e-12

First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212720 [Multi-domain]  Cd Length: 53  Bit Score: 61.99  E-value: 5.42e-12
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11786      4 ALYNYEGKEPGDLSFKKGDIILLRKRiDENWYHGECNGKQGFFPASYV 51
SH3_Abi cd11826
Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor ...
1008-1055 5.43e-12

Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. They localize to sites of actin polymerization in epithelial adherens junction and immune synapses, as well as to the leading edge of lamellipodia. Vertebrates contain two Abi proteins, Abi1 and Abi2. Abi1 displays a wide expression pattern while Abi2 is highly expressed in the eye and brain. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212760 [Multi-domain]  Cd Length: 52  Bit Score: 61.95  E-value: 5.43e-12
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11826      3 VALYDYTADKDDELSFQEGDIIYVTKKNDDgWYEGVLNGVTGLFPGNYV 51
SH3_MLK1-3 cd12059
Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine ...
1009-1056 5.72e-12

Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Little is known about the specific function of MLK1, also called MAP3K9. It is capable of activating the c-Jun N-terminal kinase pathway. Mice lacking both MLK1 and MLK2 are viable, fertile, and have normal life spans. MLK2, also called MAP3K10, is abundant in brain, skeletal muscle, and testis. It functions upstream of the MAPK, c-Jun N-terminal kinase. It binds hippocalcin, a calcium-sensor protein that protects neurons against calcium-induced cell death. Both MLK2 and hippocalcin may be associated with the pathogenesis of Parkinson's disease. MLK3, also called MAP3K11, is highly expressed in breast cancer cells and its signaling through c-Jun N-terminal kinase has been implicated in the migration, invasion, and malignancy of cancer cells. It also functions as a negative regulator of Inhibitor of Nuclear Factor-KappaB Kinase (IKK) and thus, impacts inflammation and immunity. MLKs contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212992 [Multi-domain]  Cd Length: 58  Bit Score: 62.09  E-value: 5.72e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKD----GD--WWTGTVGDKAGVFPSNYVR 1056
Cdd:cd12059      4 AVFDYEASAEDELTLRRGDRVEVLSKDsavsGDegWWTGKINDRVGIFPSNYVT 57
SH3_9 pfam14604
Variant SH3 domain;
747-802 5.80e-12

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 61.86  E-value: 5.80e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKGEwvdesqtGEPGWLGGELKGKTGWFPANYAE 802
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITVIEE-------SEDGWWEGINTGRTGLVPANYVE 49
SH3_Intersectin_3 cd11838
Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor ...
1161-1211 5.84e-12

Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. The SH3C of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212772 [Multi-domain]  Cd Length: 52  Bit Score: 62.05  E-value: 5.84e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVlNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11838      3 IALYPYESNEPGDLTFNAGDVILV-TKKDGEWWTGTIGDRTGIFPSNYVRP 52
PTZ00121 PTZ00121
MAEBL; Provisional
351-688 7.57e-12

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 70.94  E-value: 7.57e-12
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  351 EDKKRENFERGNLELEK----------RRQALL--EQQRKEQErlaqLERAEQERKERE-RQEQERKRQLELEKQLEKQR 417
Cdd:PTZ00121  1240 EEAKKAEEERNNEEIRKfeearmahfaRRQAAIkaEEARKADE----LKKAEEKKKADEaKKAEEKKKADEAKKKAEEAK 1315
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  418 ELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKEQEdivvlkaKKKTLEFELEALNDKKHQLEGKLQ 497
Cdd:PTZ00121  1316 KADEAKKKAEEAKKKADAAKKKAEEAKKAAEAAKAEAEAAADEAEAAEE-------KAEAAEKKKEEAKKKADAAKKKAE 1388
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  498 DIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQmlgrlipEKQILNDQLKQVQQNSlhrdslvtlKRALEAKEL 577
Cdd:PTZ00121  1389 EKKKADEAKKKAEEDKKKADELKKAAAAKKKADEAKKKA-------EEKKKADEAKKKAEEA---------KKADEAKKK 1452
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  578 ARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKsmeAERLKQKEQERKIIELEKQKEEAQ-----RR 652
Cdd:PTZ00121  1453 AEEAKKAEEAKKKAEEAKKADEAKKKAEEAKKADEAKKKAEEAKKK---ADEAKKAAEAKKKADEAKKAEEAKkadeaKK 1529
                          330       340       350
                   ....*....|....*....|....*....|....*.
gi 1034627469  653 AQERDKQwlEHVQQEDEHQRPRKLHEEEKLKREESV 688
Cdd:PTZ00121  1530 AEEAKKA--DEAKKAEEKKKADELKKAEELKKAEEK 1563
SH3_Nck_3 cd11767
Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain ...
1160-1211 8.71e-12

Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain of Nck, the first SH3 domain of Caenorhabditis elegans Ced-2 (Cell death abnormality protein 2), and similar domains. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. Ced-2 is a cell corpse engulfment protein that interacts with Ced-5 in a pathway that regulates the activation of Ced-10, a Rac small GTPase.


Pssm-ID: 212701 [Multi-domain]  Cd Length: 56  Bit Score: 61.56  E-value: 8.71e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNK--EDPDWWKGE-VNGQVGLFPSNYVKL 1211
Cdd:cd11767      2 VVALYPFTGENDEELSFEKGERLEIIEKpeDDPDWWKARnALGTTGLVPRNYVEV 56
SH3_Nck1_3 cd11904
Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
1160-1211 8.93e-12

Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212837 [Multi-domain]  Cd Length: 57  Bit Score: 61.58  E-value: 8.93e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNK--EDPDWWK-GEVNGQVGLFPSNYVKL 1211
Cdd:cd11904      3 VQALYPFSSSNDEELNFEKGEVMDVIEKpeNDPEWWKcRKANGQVGLVPKNYVTV 57
SH3_MLK cd11876
Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), ...
1009-1055 9.52e-12

Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Mammals have four MLKs (MLK1-4), mostly conserved in vertebrates, which contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212809 [Multi-domain]  Cd Length: 58  Bit Score: 61.76  E-value: 9.52e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKD----GD--WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11876      4 ALFDYDARGEDELTLRRGQPVEVLSKDaavsGDegWWTGKIGDKVGIFPSNYV 56
SH3_VAV_2 cd11830
C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as ...
1161-1210 9.71e-12

C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as cytoplasmic guanine nucleotide exchange factors (GEFs) for Rho GTPases and scaffold proteins and they play important roles in cell signaling by coupling cell surface receptors to various effector functions. They play key roles in processes that require cytoskeletal reorganization including immune synapse formation, phagocytosis, cell spreading, and platelet aggregation, among others. Vertebrates have three VAV proteins (VAV1, VAV2, and VAV3). VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212764 [Multi-domain]  Cd Length: 54  Bit Score: 61.49  E-value: 9.71e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKE-DPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11830      3 KARYDFCARDMRELSLKEGDVVKIYNKKgQQGWWRGEINGRIGWFPSTYVE 53
SH3_CIN85_2 cd12055
Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1158-1210 9.82e-12

Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CIN85. SH3B has been shown to bind Cbl proline-rich peptides and ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212988 [Multi-domain]  Cd Length: 53  Bit Score: 61.55  E-value: 9.82e-12
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1158 CQVigMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12055      2 CQV--AFSYLPQNEDELELKVGDIIEVVGEVEEGWWEGVLNGKTGMFPSNFIK 52
SH3_PLCgamma1 cd11970
Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is ...
1158-1210 1.00e-11

Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is essential in growth and development. It is activated by the TrkA receptor tyrosine kinase and functions as a key regulator of cell differentiation. It is also the predominant PLCgamma in T cells and is required for T cell and NK cell function. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212903  Cd Length: 60  Bit Score: 61.54  E-value: 1.00e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1158 CQVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGL-FPSNYVK 1210
Cdd:cd11970      4 CAVKALFDYKAQREDELTFTKNAIIQNVEKQEGGWWRGDYGGKKQLwFPSNYVE 57
SH3_srGAP cd11809
Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating ...
1161-1211 1.25e-11

Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating Proteins (srGAPs) are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. Vertebrates contain three isoforms of srGAPs (srGAP1-3), all of which are expressed during embryonic and early development in the nervous system but with different localization and timing. A fourth member has also been reported (srGAP4, also called ARHGAP4). srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212743 [Multi-domain]  Cd Length: 53  Bit Score: 61.26  E-value: 1.25e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11809      3 TAQFDYTGRSERELSFKKGDSLTLYRQVSDDWWRGQLNGQDGLVPHKYITL 53
SH3_PIX cd11877
Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine ...
1078-1135 1.39e-11

Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine nucleotide exchange factors (GEFs), which activate small GTPases by exchanging bound GDP for free GTP. They act as GEFs for both Cdc42 and Rac 1, and have been implicated in cell motility, adhesion, neurite outgrowth, and cell polarity. Vertebrates contain two proteins from the PIX subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also called ARHGEF6, is localized in dendritic spines where it regulates spine morphogenesis. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. Beta-PIX play roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212810 [Multi-domain]  Cd Length: 53  Bit Score: 60.79  E-value: 1.39e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1078 IAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARgkkrqIGWFPANYVKL 1135
Cdd:cd11877      1 LVRAKFNFEGTNEDELSFDKGDIITVTQVVEGGWWEGTLNGK-----TGWFPSNYVKE 53
SH3 cd00174
Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction ...
744-800 1.48e-11

Src Homology 3 domain superfamily; Src Homology 3 (SH3) domains are protein interaction domains that bind proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. Thus, they are referred to as proline-recognition domains (PRDs). SH3 domains are less selective and show more diverse specificity compared to other PRDs. They have been shown to bind peptide sequences that lack the PxxP motif; examples include the PxxDY motif of Eps8 and the RKxxYxxY sequence in SKAP55. SH3 domain containing proteins play versatile and diverse roles in the cell, including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies, among others. Many members of this superfamily are adaptor proteins that associate with a number of protein partners, facilitating complex formation and signal transduction.


Pssm-ID: 212690 [Multi-domain]  Cd Length: 51  Bit Score: 60.94  E-value: 1.48e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKgewvdesQTGEPGWLGGEL-KGKTGWFPANY 800
Cdd:cd00174      1 YARALYDYEAQDDDELSFKKGDIITVL-------EKDDDGWWEGELnGGREGLFPANY 51
SH3_VAV1_2 cd11976
C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly ...
1164-1210 1.56e-11

C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly in the hematopoietic system and it plays an important role in the development and activation of B and T cells. It is activated by tyrosine phosphorylation to function as a guanine nucleotide exchange factor (GEF) for Rho GTPases following cell surface receptor activation, triggering various effects such as cytoskeletal reorganization, transcription regulation, cell cycle progression, and calcium mobilization. It also serves as a scaffold protein and has been shown to interact with Ku70, Socs1, Janus kinase 2, SIAH2, S100B, Abl gene, ZAP-70, SLP76, and Syk, among others. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The C-terminal SH3 domain of Vav1 interacts with a wide variety of proteins including cytoskeletal regulators (zyxin), RNA-binding proteins (Sam68), transcriptional regulators, viral proteins, and dynamin 2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212909 [Multi-domain]  Cd Length: 54  Bit Score: 60.73  E-value: 1.56e-11
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPD-WWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11976      6 YDFCARDRSELSLKEGDIIKILNKKGQQgWWRGEIYGRVGWFPANYVE 53
SH3_GRAF-like cd11882
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar ...
1159-1211 1.66e-11

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar proteins; This subfamily is composed of Rho GTPase activating proteins (GAPs) with similarity to GRAF. Members contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. Although vertebrates harbor four Rho GAPs in the GRAF subfamily including GRAF, GRAF2, GRAF3, and Oligophrenin-1 (OPHN1), only three are included in this model. OPHN1 contains the BAR, PH and GAP domains, but not the C-terminal SH3 domain. GRAF and GRAF2 show GAP activity towards RhoA and Cdc42. GRAF influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase. GRAF2 regulates caspase-activated p21-activated protein kinase-2. The SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212815 [Multi-domain]  Cd Length: 54  Bit Score: 60.77  E-value: 1.66e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQII-NVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11882      1 RARALYACKAEDESELSFEPGQIItNVQPSDEPGWLEGTLNGRTGLIPENYVEF 54
SH3_PLCgamma2 cd11969
Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in ...
1160-1210 1.67e-11

Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in haematopoietic cells, specifically in B cells. It is activated by tyrosine phosphorylation by B cell receptor (BCR) kinases and is recruited to the plasma membrane where its substrate is located. It is required in pre-BCR signaling and in the maturation of B cells. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212902  Cd Length: 55  Bit Score: 60.62  E-value: 1.67e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVG-LFPSNYVK 1210
Cdd:cd11969      2 VKALYDYRAKRSDELSFCKGALIHNVSKETGGWWKGDYGGKVQhYFPSNYVE 53
SMC_N pfam02463
RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The ...
366-686 1.71e-11

RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. The eukaryotic SMC proteins form two kind of heterodimers: the SMC1/SMC3 and the SMC2/SMC4 types. These heterodimers constitute an essential part of higher order complexes, which are involved in chromatin and DNA dynamics. This family also includes the RecF and RecN proteins that are involved in DNA metabolism and recombination.


Pssm-ID: 426784 [Multi-domain]  Cd Length: 1161  Bit Score: 69.62  E-value: 1.71e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  366 EKRRQALLE------QQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLEKQrelerqreeerRKEIERREAAKR 439
Cdd:pfam02463  152 PERRLEIEEeaagsrLKRKKKEALKKLIEETENLAELIIDLEELKLQELKLKEQAKK-----------ALEYYQLKEKLE 220
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  440 ELERQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKK---TLEFELEALNDKKHQLEGKLQDIrcrlttQRQEIESTNKS 516
Cdd:pfam02463  221 LEEEYLLYLDYLKLNEERIDLLQELLRDEQEEIESSKqeiEKEEEKLAQVLKENKEEEKEKKL------QEEELKLLAKE 294
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  517 RELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRD---SLVTLKRALEAKE---------LARQHLRD 584
Cdd:pfam02463  295 EEELKSELLKLERRKVDDEEKLKESEKEKKKAEKELKKEKEEIEELEkelKELEIKREAEEEEeeeleklqeKLEQLEEE 374
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  585 QLDEVEKETRSKLQEIDIFNNQL----KELREIHNKQQLQKQKSMEAERLKQKEqERKIIELEKQKEEAQRRAQERdkqw 660
Cdd:pfam02463  375 LLAKKKLESERLSSAAKLKEEELelksEEEKEAQLLLELARQLEDLLKEEKKEE-LEILEEEEESIELKQGKLTEE---- 449
                          330       340
                   ....*....|....*....|....*.
gi 1034627469  661 lEHVQQEDEHQRPRKLHEEEKLKREE 686
Cdd:pfam02463  450 -KEELEKQELKLLKDELELKKSEDLL 474
PTZ00121 PTZ00121
MAEBL; Provisional
326-729 1.76e-11

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 69.78  E-value: 1.76e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  326 DQRLPEEPVLEDEQQQLEKKLPVtfEDKKRENFERgnlELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKR 405
Cdd:PTZ00121  1126 DARKAEEARKAEDARKAEEARKA--EDAKRVEIAR---KAEDARKAEEARKAEDAKKAEAARKAEEVRKAEELRKAEDAR 1200
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  406 QLELEKQLEKQRELERQREEERrkeierreaaKRELERQRQLEWERNRRQEllnQRNKEQEDIVVLKAKKKTLEFELEAL 485
Cdd:PTZ00121  1201 KAEAARKAEEERKAEEARKAED----------AKKAEAVKKAEEAKKDAEE---AKKAEEERNNEEIRKFEEARMAHFAR 1267
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  486 NDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDSL 565
Cdd:PTZ00121  1268 RQAAIKAEEARKADELKKAEEKKKADEAKKAEEKKKADEAKKKAEEAKKADEAKKKAEEAKKKADAAKKKAEEAKKAAEA 1347
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  566 VTLKRALEAKELARQHLRDQLDEVEK-ETRSKLQEIDIFNNQLKELREIHNKQQLQKQKsmeAERLKQKEQERKIIELEK 644
Cdd:PTZ00121  1348 AKAEAEAAADEAEAAEEKAEAAEKKKeEAKKKADAAKKKAEEKKKADEAKKKAEEDKKK---ADELKKAAAAKKKADEAK 1424
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  645 QKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGRLFHQHQEPAKPAVQAPW 724
Cdd:PTZ00121  1425 KKAEEKKKADEAKKKAEEAKKADEAKKKAEEAKKAEEAKKKAEEAKKADEAKKKAEEAKKADEAKKKAEEAKKKADEAKK 1504

                   ....*
gi 1034627469  725 STAEK 729
Cdd:PTZ00121  1505 AAEAK 1509
SH3_Abp1_eu cd11960
Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like ...
1163-1211 1.80e-11

Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like protein, is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a helical domain, and a C-terminal SH3 domain. Mammalian Abp1, unlike yeast Abp1, does not contain an acidic domain that interacts with the Arp2/3 complex. It regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. Abp1 deficiency causes abnormal organ structure and function of the spleen, heart, and lung of mice. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212893 [Multi-domain]  Cd Length: 54  Bit Score: 60.49  E-value: 1.80e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEV-NGQVGLFPSNYVKL 1211
Cdd:cd11960      5 LYDYQAADDTEISFDPGDIITDIEQIDEGWWRGTGpDGTYGLFPANYVEL 54
SH3_Bzz1_2 cd11778
Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP ...
1160-1208 1.99e-11

Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP/Las17-interacting protein involved in endocytosis and trafficking to the vacuole. It physically interacts with type I myosins and functions in the early steps of endocytosis. Together with other proteins, it induces membrane scission in yeast. Bzz1 contains an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), a central coiled-coil, and two C-terminal SH3 domains. This model represents the second C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212712 [Multi-domain]  Cd Length: 51  Bit Score: 60.59  E-value: 1.99e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLnKEDP--DWWKGEVNGQVGLFPSNY 1208
Cdd:cd11778      2 VEALYDYEAQGDDEISIRVGDRIAVI-RGDDgsGWTYGEINGVKGLFPTSY 51
SMC_N pfam02463
RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The ...
323-687 2.11e-11

RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. The eukaryotic SMC proteins form two kind of heterodimers: the SMC1/SMC3 and the SMC2/SMC4 types. These heterodimers constitute an essential part of higher order complexes, which are involved in chromatin and DNA dynamics. This family also includes the RecF and RecN proteins that are involved in DNA metabolism and recombination.


Pssm-ID: 426784 [Multi-domain]  Cd Length: 1161  Bit Score: 69.23  E-value: 2.11e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  323 TSVDQRLPEEPVLEDEQQQLEKKLPVTFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQE 402
Cdd:pfam02463  652 VSLEEGLAEKSEVKASLSELTKELLEIQELQEKAESELAKEEILRRQLEIKKKEQREKEELKKLKLEAEELLADRVQEAQ 731
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  403 RKRQLELEKQLEKQRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKE------QEDIVVLKAKKK 476
Cdd:pfam02463  732 DKINEELKLLKQKIDEEEEEEEKSRLKKEEKEEEKSELSLKEKELAEEREKTEKLKVEEEKEeklkaqEEELRALEEELK 811
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  477 TLEFELEALNDKKHQLEGKLQDIRCRlttQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLipEKQILNDQLKQVQ 556
Cdd:pfam02463  812 EEAELLEEEQLLIEQEEKIKEEELEE---LALELKEEQKLEKLAEEELERLEEEITKEELLQELL--LKEEELEEQKLKD 886
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  557 QNSLHRDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELReihnkqqLQKQKSMEAERLKQKEQE 636
Cdd:pfam02463  887 ELESKEEKEKEEKKELEEESQKLNLLEEKENEIEERIKEEAEILLKYEEEPEELL-------LEEADEKEKEENNKEEEE 959
                          330       340       350       360       370
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  637 RKIIELEKQKEEAQRRaqerdkqwlehvqqeDEHQRPRKLHEEEKLKREES 687
Cdd:pfam02463  960 ERNKRLLLAKEELGKV---------------NLMAIEEFEEKEERYNKDEL 995
SH3_Intersectin1_3 cd11991
Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1159-1211 2.24e-11

Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212924  Cd Length: 52  Bit Score: 60.38  E-value: 2.24e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIInVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11991      1 EYVAMYTYESNEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKTGVFPSNYVRP 52
SH3_MLK4 cd12058
Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), ...
1163-1209 2.33e-11

Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. The specific function of MLK4 is yet to be determined. Mutations in the kinase domain of MLK4 have been detected in colorectal cancers. MLK4 contains an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212991 [Multi-domain]  Cd Length: 58  Bit Score: 60.34  E-value: 2.33e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKE-----DPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd12058      5 LYDYEASGEDELSLRRGDVVEVLSQDaavsgDDGWWAGKIRHRLGIFPANYV 56
SH3_PIX cd11877
Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine ...
745-802 2.45e-11

Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine nucleotide exchange factors (GEFs), which activate small GTPases by exchanging bound GDP for free GTP. They act as GEFs for both Cdc42 and Rac 1, and have been implicated in cell motility, adhesion, neurite outgrowth, and cell polarity. Vertebrates contain two proteins from the PIX subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also called ARHGEF6, is localized in dendritic spines where it regulates spine morphogenesis. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. Beta-PIX play roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212810 [Multi-domain]  Cd Length: 53  Bit Score: 60.41  E-value: 2.45e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11877      2 VRAKFNFEGTNEDELSFDKGDIITV-------TQVVEGGWWEGTLNGKTGWFPSNYVK 52
SH3_Intersectin_5 cd11840
Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor ...
917-968 3.18e-11

Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212774 [Multi-domain]  Cd Length: 53  Bit Score: 59.74  E-value: 3.18e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11840      1 QVIALFPYTAQNEDELSFQKGDIINVLSKDDpDWWRGELNGQTGLFPSNYVEP 53
SH3_Sla1p_1 cd11773
First Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates ...
1163-1208 3.58e-11

First Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates endocytosis by playing a role as an adaptor protein in coupling components of the actin cytoskeleton to the endocytic machinery. It interacts with Abp1p, Las17p and Pan1p, which are activator proteins of actin-related protein 2/3 (Arp2/3). Sla1p contains multiple domains including three SH3 domains, a SAM (sterile alpha motif) domain, and a Sla1 homology domain 1 (SHD1), which binds to the NPFXD motif that is found in many integral membrane proteins such as the Golgi-localized Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and Dnf1p. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212707 [Multi-domain]  Cd Length: 57  Bit Score: 59.75  E-value: 3.58e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWK-------GEVNGQVGLFPSNY 1208
Cdd:cd11773      5 LYDYEPQTEDELTIQEDDILYLLEKSDDDWWKvklkvnsSDDDEPVGLVPATY 57
SCP-1 pfam05483
Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major ...
332-707 4.29e-11

Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major component of the transverse filaments of the synaptonemal complex. Synaptonemal complexes are structures that are formed between homologous chromosomes during meiotic prophase.


Pssm-ID: 114219 [Multi-domain]  Cd Length: 787  Bit Score: 68.21  E-value: 4.29e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  332 EPVLEDEQQQLEK-----KLPVTFEDKKRENFER-------GNLELEKRRQALLEQQRKEQERlAQLERAEQERKERERQ 399
Cdd:pfam05483  362 EELLRTEQQRLEKnedqlKIITMELQKKSSELEEmtkfknnKEVELEELKKILAEDEKLLDEK-KQFEKIAEELKGKEQE 440
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  400 E----QERKRQL-ELEKQLekqreleRQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKE---------- 464
Cdd:pfam05483  441 LifllQAREKEIhDLEIQL-------TAIKTSEEHYLKEVEDLKTELEKEKLKNIELTAHCDKLLLENKEltqeasdmtl 513
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  465 -----QEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIE-STNKSRElriaeitHLQQQLQESQQML 538
Cdd:pfam05483  514 elkkhQEDIINCKKQEERMLKQIENLEEKEMNLRDELESVREEFIQKGDEVKcKLDKSEE-------NARSIEYEVLKKE 586
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  539 GRLIPEKQILNDQLKQVQQNSLHRDSLVTLKRAL------EAKELARQHLRDQLDEVEKE-TRSKLQEI-DIFNNQL--K 608
Cdd:pfam05483  587 KQMKILENKCNNLKKQIENKNKNIEELHQENKALkkkgsaENKQLNAYEIKVNKLELELAsAKQKFEEIiDNYQKEIedK 666
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  609 ELREIHNKQQLQKQKSMEAERLK-QKEQER----KIIE----LEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEE 679
Cdd:pfam05483  667 KISEEKLLEEVEKAKAIADEAVKlQKEIDKrcqhKIAEmvalMEKHKHQYDKIIEERDSELGLYKNKEQEQSSAKAALEI 746
                          410       420
                   ....*....|....*....|....*...
gi 1034627469  680 EKLKREESVKKKDGEEKGKQEAQDKLGR 707
Cdd:pfam05483  747 ELSNIKAELLSLKKQLEIEKEEKEKLKM 774
SH3_Abp1_fungi_C1 cd11962
First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
1164-1211 4.87e-11

First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212895 [Multi-domain]  Cd Length: 54  Bit Score: 59.42  E-value: 4.87e-11
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGE-VNGQVGLFPSNYVKL 1211
Cdd:cd11962      6 YDYEKDEDNEIELVEGEIVTNIEMVDEDWWMGTnSKGESGLFPSNYVEL 54
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
335-594 4.96e-11

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 68.04  E-value: 4.96e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLpvTFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLE--LEKQ 412
Cdd:COG1196    293 LLAELARLEQDI--ARLEERRRELEERLEELEEELAELEEELEELEEELEELEEELEEAEEELEEAEAELAEAEeaLLEA 370
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  413 LEKQRELERQReeerrkeierREAAKRELERQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQL 492
Cdd:COG1196    371 EAELAEAEEEL----------EELAEELLEALRAAAELAAQLEELEEAEEALLERLERLEEELEELEEALAELEEEEEEE 440
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  493 EGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQIlndqLKQVQQNSLHRDSLVTLKRAL 572
Cdd:COG1196    441 EEALEEAAEEEAELEEEEEALLELLAELLEEAALLEAALAELLEELAEAAARLLL----LLEAEADYEGFLEGVKAALLL 516
                          250       260
                   ....*....|....*....|..
gi 1034627469  573 EAKELARQHLRDQLDEVEKETR 594
Cdd:COG1196    517 AGLRGLAGAVAVLIGVEAAYEA 538
SH3_Sdc25 cd11883
Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is ...
1078-1132 6.06e-11

Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is composed of the Saccharomyces cerevisiae guanine nucleotide exchange factors (GEFs) Sdc25 and Cdc25, and similar proteins. These GEFs regulate Ras by stimulating the GDP/GTP exchange on Ras. Cdc25 is involved in the Ras/PKA pathway that plays an important role in the regulation of metabolism, stress responses, and proliferation, depending on available nutrients and conditions. Proteins in this subfamily contain an N-terminal SH3 domain as well as REM (Ras exchanger motif) and RasGEF domains at the C-terminus. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212816  Cd Length: 55  Bit Score: 59.22  E-value: 6.06e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1078 IAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKRQIGWFPANY 1132
Cdd:cd11883      1 VVVALYDFTPKSKNQLSFKAGDIIYVLNKDPSGWWDGVIISSSGKVKRGWFPSNY 55
SH3_p47phox_like cd11856
Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This ...
1163-1210 6.23e-11

Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This family is composed of the tandem SH3 domains of p47phox subunit of NADPH oxidase and Nox Organizing protein 1 (NoxO1), the four SH3 domains of Tks4 (Tyr kinase substrate with four SH3 domains), the five SH3 domains of Tks5, the SH3 domain of obscurin, Myosin-I, and similar domains. Most members of this group also contain Phox homology (PX) domains, except for obscurin and Myosin-I. p47phox and NoxO1 are regulators of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) and nonphagocytic NADPH oxidase Nox1, respectively. They play roles in the activation of their respective NADPH oxidase, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Obscurin is a giant muscle protein that plays important roles in the organization and assembly of the myofibril and the sarcoplasmic reticulum. Type I myosins (Myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212790 [Multi-domain]  Cd Length: 53  Bit Score: 59.19  E-value: 6.23e-11
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11856      5 IADYEAQGDDEISLQEGEVVEVLEKNDSGWWYVRKGDKEGWVPASYLE 52
SH3_Sdc25 cd11883
Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is ...
1160-1208 6.49e-11

Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is composed of the Saccharomyces cerevisiae guanine nucleotide exchange factors (GEFs) Sdc25 and Cdc25, and similar proteins. These GEFs regulate Ras by stimulating the GDP/GTP exchange on Ras. Cdc25 is involved in the Ras/PKA pathway that plays an important role in the regulation of metabolism, stress responses, and proliferation, depending on available nutrients and conditions. Proteins in this subfamily contain an N-terminal SH3 domain as well as REM (Ras exchanger motif) and RasGEF domains at the C-terminus. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212816  Cd Length: 55  Bit Score: 59.22  E-value: 6.49e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQV-----GLFPSNY 1208
Cdd:cd11883      2 VVALYDFTPKSKNQLSFKAGDIIYVLNKDPSGWWDGVIISSSgkvkrGWFPSNY 55
SH3_Nck1_2 cd11901
Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
1164-1209 6.71e-11

Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212834 [Multi-domain]  Cd Length: 55  Bit Score: 59.28  E-value: 6.71e-11
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11901      8 FNYTAEREDELSLVKGTKVIVMEKCSDGWWRGSYNGQVGWFPSNYV 53
SH3_SNX9_like cd11763
Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox ...
1159-1209 7.21e-11

Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. This subfamily consists of SH3 domain containing SNXs including SNX9, SNX18, SNX33, and similar proteins. SNX9 is localized to plasma membrane endocytic sites and acts primarily in clathrin-mediated endocytosis, while SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212697 [Multi-domain]  Cd Length: 55  Bit Score: 58.88  E-value: 7.21e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPD-WWKGE-VNGQVGLFPSNYV 1209
Cdd:cd11763      1 KVRALYDFDSQPSGELSLRAGEVLTITRQDVGDgWLEGRnSRGEVGLFPSSYV 53
SH3_SH3RF_1 cd11786
First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
1163-1210 7.37e-11

First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212720 [Multi-domain]  Cd Length: 53  Bit Score: 58.91  E-value: 7.37e-11
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11786      5 LYNYEGKEPGDLSFKKGDIILLRKRIDENWYHGECNGKQGFFPASYVQ 52
SH3_PIX cd11877
Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine ...
917-968 7.40e-11

Src Homology 3 domain of Pak Interactive eXchange factors; PIX proteins are Rho guanine nucleotide exchange factors (GEFs), which activate small GTPases by exchanging bound GDP for free GTP. They act as GEFs for both Cdc42 and Rac 1, and have been implicated in cell motility, adhesion, neurite outgrowth, and cell polarity. Vertebrates contain two proteins from the PIX subfamily, alpha-PIX and beta-PIX. Alpha-PIX, also called ARHGEF6, is localized in dendritic spines where it regulates spine morphogenesis. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. Beta-PIX play roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212810 [Multi-domain]  Cd Length: 53  Bit Score: 58.86  E-value: 7.40e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11877      1 LVRAKFNFEGTNEDELSFDKGDIITVTQVVEgGWWEGTLNGKTGWFPSNYVKE 53
SH3_PRMT2 cd11806
Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, ...
1160-1209 7.58e-11

Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, belongs to the arginine methyltransferase protein family. It functions as a coactivator to both estrogen receptor alpha (ER-alpha) and androgen receptor (AR), presumably through arginine methylation. The ER-alpha transcription factor is involved in cell proliferation, differentiation, morphogenesis, and apoptosis, and is also implicated in the development and progression of breast cancer. PRMT2 and its variants are upregulated in breast cancer cells and may be involved in modulating the ER-alpha signaling pathway during formation of breast cancer. PRMT2 also plays a role in regulating the function of E2F transcription factors, which are critical cell cycle regulators, by binding to the retinoblastoma gene product (RB). It contains an N-terminal SH3 domain and an AdoMet binding domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212740 [Multi-domain]  Cd Length: 53  Bit Score: 58.94  E-value: 7.58e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11806      2 YVAIADFVATDDSQLSFESGDKLLVLRKPSVDWWWAEHNGCCGYIPASHL 51
SH3_p67phox_C cd12046
C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, ...
1008-1056 7.71e-11

C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, also called Neutrophil cytosol factor 2 (NCF-2), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox plays a regulatory role and contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. It binds, via its C-terminal SH3 domain, to a proline-rich region of p47phox and upon activation, this complex assembles with flavocytochrome b558, the Nox2-p22phox heterodimer. Concurrently, RacGTP translocates to the membrane and interacts with the TPR domain of p67phox, which leads to the activation of NADPH oxidase. The PB1 domain of p67phox binds to its partner PB1 domain in p40phox, and this facilitates the assembly of p47phox-p67phox at the membrane. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212979 [Multi-domain]  Cd Length: 53  Bit Score: 58.66  E-value: 7.71e-11
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILV-TKKDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd12046      3 VALFSYEASQPEDLEFQKGDVILVlSKVNEDWLEGQCKGKIGIFPSAFVE 52
SH3_Eve1_4 cd11817
Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1160-1208 8.12e-11

Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212751 [Multi-domain]  Cd Length: 50  Bit Score: 58.64  E-value: 8.12e-11
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNY 1208
Cdd:cd11817      2 AVALYDFTGETEEDLSFQRGDRILVTEHLDAEWSRGRLNGREGIFPRAF 50
SH3_CD2AP-like_3 cd11875
Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This ...
744-802 8.21e-11

Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212808 [Multi-domain]  Cd Length: 55  Bit Score: 58.90  E-value: 8.21e-11
                           10        20        30        40        50
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gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKgewvdESQTGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11875      1 KARVLFDYEAENEDELTLREGDIVTIL-----SKDCEDKGWWKGELNGKRGVFPDNFVE 54
SMC_N pfam02463
RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The ...
327-659 8.29e-11

RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. The eukaryotic SMC proteins form two kind of heterodimers: the SMC1/SMC3 and the SMC2/SMC4 types. These heterodimers constitute an essential part of higher order complexes, which are involved in chromatin and DNA dynamics. This family also includes the RecF and RecN proteins that are involved in DNA metabolism and recombination.


Pssm-ID: 426784 [Multi-domain]  Cd Length: 1161  Bit Score: 67.30  E-value: 8.29e-11
                           10        20        30        40        50        60        70        80
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gi 1034627469  327 QRLPEEPVLEDEQQQLEKKLPVTFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKErERQEQERKRQ 406
Cdd:pfam02463  183 ENLAELIIDLEELKLQELKLKEQAKKALEYYQLKEKLELEEEYLLYLDYLKLNEERIDLLQELLRDEQE-EIESSKQEIE 261
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  407 LELEKQLEKQRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKEQEDIVvlKAKKKTLEFELEALN 486
Cdd:pfam02463  262 KEEEKLAQVLKENKEEEKEKKLQEEELKLLAKEEEELKSELLKLERRKVDDEEKLKESEKEKK--KAEKELKKEKEEIEE 339
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  487 DKKHQLEGKLQDIRCRLTTQRQEiESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDSLV 566
Cdd:pfam02463  340 LEKELKELEIKREAEEEEEEELE-KLQEKLEQLEEELLAKKKLESERLSSAAKLKEEELELKSEEEKEAQLLLELARQLE 418
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  567 TLKRALEAKELArqhlrdQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQ-KQKSMEAERLKQKEQERKIIELEKQ 645
Cdd:pfam02463  419 DLLKEEKKEELE------ILEEEEESIELKQGKLTEEKEELEKQELKLLKDELElKKSEDLLKETQLVKLQEQLELLLSR 492
                          330
                   ....*....|....
gi 1034627469  646 KEEAQRRAQERDKQ 659
Cdd:pfam02463  493 QKLEERSQKESKAR 506
SH3_Pex13p_fungal cd11771
Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the ...
1164-1209 9.39e-11

Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the peroxisomal membrane, contains two transmembrane regions and a C-terminal SH3 domain. It binds to the peroxisomal targeting type I (PTS1) receptor Pex5p and the docking factor Pex14p through its SH3 domain. It is essential for both PTS1 and PTS2 protein import pathways into the peroxisomal matrix. Pex13p binds Pex14p, which contains a PxxP motif, in a classical fashion to the proline-rich ligand binding site of its SH3 domain. It binds the WxxxF/Y motif of Pex5p in a novel site that does not compete with Pex14p binding. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212705 [Multi-domain]  Cd Length: 60  Bit Score: 58.83  E-value: 9.39e-11
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gi 1034627469 1164 YDYTAQNDD-ELAFNKGQIINVLNKEDP-----DWWKGEV-NGQVGLFPSNYV 1209
Cdd:cd11771      6 YDFTPENPEmELSLKKGDIVAVLSKTDPlgrdsEWWKGRTrDGRIGWFPSNYV 58
SH3_Tec_like cd11768
Src Homology 3 domain of Tec-like Protein Tyrosine Kinases; The Tec (Tyrosine kinase expressed ...
1159-1210 1.03e-10

Src Homology 3 domain of Tec-like Protein Tyrosine Kinases; The Tec (Tyrosine kinase expressed in hepatocellular carcinoma) subfamily is composed of Tec, Btk, Bmx (Etk), Itk (Tsk, Emt), Rlk (Txk), and similar proteins. They are cytoplasmic (or nonreceptor) tyr kinases containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. Most Tec subfamily members (except Rlk) also contain an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation. In addition, some members contain the Tec homology (TH) domain, which contains proline-rich and zinc-binding regions. Tec kinases are expressed mainly by haematopoietic cells, although Tec and Bmx are also found in endothelial cells. B-cells express Btk and Tec, while T-cells express Itk, Txk, and Tec. Collectively, Tec kinases are expressed in a variety of myeloid cells such as mast cells, platelets, macrophages, and dendritic cells. Each Tec kinase shows a distinct cell-type pattern of expression. The function of Tec kinases in lymphoid cells have been studied extensively. They play important roles in the development, differentiation, maturation, regulation, survival, and function of B-cells and T-cells. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212702 [Multi-domain]  Cd Length: 54  Bit Score: 58.44  E-value: 1.03e-10
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gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKG-EVNGQVGLFPSNYVK 1210
Cdd:cd11768      1 IVVALYDFQPIEPGDLPLEKGEEYVVLDDSNEHWWRArDKNGNEGYIPSNYVT 53
SH3_ARHGEF9_like cd11828
Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this ...
1160-1211 1.03e-10

Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this family contain a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. They include the Rho guanine nucleotide exchange factors ARHGEF9, ASEF (also called ARHGEF4), ASEF2, and similar proteins. GEFs activate small GTPases by exchanging bound GDP for free GTP. ARHGEF9 specifically activates Cdc42, while both ASEF and ASEF2 can activate Rac1 and Cdc42. ARHGEF9 is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. ASEF plays a role in angiogenesis and cell migration. ASEF2 is important in cell migration and adhesion dynamics. ASEF exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli), leading to the activation of Rac1 or Cdc42. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212762 [Multi-domain]  Cd Length: 53  Bit Score: 58.55  E-value: 1.03e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11828      2 AEALWDHVTMDPEELGFKAGDVIEVLDMSDKDWWWGSIRDEEGWFPASFVRL 53
SH3_MyoIe_If_like cd11827
Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If ...
1009-1055 1.06e-10

Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If (MyoIf) are nonmuscle, unconventional, long tailed, class I myosins containing an N-terminal motor domain and a myosin tail with TH1, TH2, and SH3 domains. MyoIe interacts with the endocytic proteins, dynamin and synaptojanin-1, through its SH3 domain; it may play a role in clathrin-dependent endocytosis. In the kidney, MyoIe is critical for podocyte function and normal glomerular filtration. Mutations in MyoIe is associated with focal segmental glomerulosclerosis, a disease characterized by massive proteinuria and progression to end-stage kidney disease. MyoIf is predominantly expressed in the immune system; it plays a role in immune cell motility and innate immunity. Mutations in MyoIf may be associated with the loss of hearing. The MyoIf gene has also been found to be fused to the MLL (Mixed lineage leukemia) gene in infant acute myeloid leukemias (AML). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212761 [Multi-domain]  Cd Length: 53  Bit Score: 58.58  E-value: 1.06e-10
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                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKD-GDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11827      4 ALYAYDAQDTDELSFNEGDIIEILKEDpSGWWTGRLRGKEGLFPGNYV 51
SH3_GRAP_N cd11948
N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
1159-1211 1.14e-10

N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The N-terminal SH3 domain of the related protein GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212881 [Multi-domain]  Cd Length: 54  Bit Score: 58.29  E-value: 1.14e-10
                           10        20        30        40        50
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gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKE-DPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11948      1 EAVALYSFQATESDELPFQKGDILKILNMEdDQNWYKAELQGREGYIPKNYIKV 54
SH3_Bbc1 cd11887
Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces ...
1160-1209 1.15e-10

Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces cerevisiae Bbc1p, also called Mti1p (Myosin tail region-interacting protein), and similar proteins. Bbc1p interacts with and regulates type I myosins in yeast, Myo3p and Myo5p, which are involved in actin cytoskeletal reorganization. It also binds and inhibits Las17, a WASp family protein that functions as an activator of the Arp2/3 complex. Bbc1p contains an N-terminal SH3 domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212820 [Multi-domain]  Cd Length: 60  Bit Score: 58.51  E-value: 1.15e-10
                           10        20        30        40        50
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gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEV-----NGQVGLFPSNYV 1209
Cdd:cd11887      4 VKALYPYESDHEDDLNFDVGQLITVTEEEDADWYFGEYvdsngNTKEGIFPKNFV 58
C2B_Rabphilin_Doc2 cd08384
C2 domain second repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons ...
1596-1676 1.17e-10

C2 domain second repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons and in neuroendrocrine cells, while Doc2 is found not only in the brain but in tissues, including mast cells, chromaffin cells, and osteoblasts. Rabphilin and Doc2s share highly homologous tandem C2 domains, although their N-terminal structures are completely different: rabphilin contains an N-terminal Rab-binding domain (RBD),7 whereas Doc2 contains an N-terminal Munc13-1-interacting domain (MID). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176030 [Multi-domain]  Cd Length: 133  Bit Score: 60.82  E-value: 1.17e-10
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gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTM-----GSQCHITKTIQDTLNPKWNSNCQFFIR--DLEQEVLCITVFERDQ 1668
Cdd:cd08384     13 RGLIVGIIRCVNLAAMDANGYSDPFVKLYLkpdagKKSKHKTQVKKKTLNPEFNEEFFYDIKhsDLAKKTLEITVWDKDI 92

                   ....*...
gi 1034627469 1669 FSPDDFLG 1676
Cdd:cd08384     93 GKSNDYIG 100
SH3_Eve1_5 cd11818
Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1163-1208 1.20e-10

Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212752 [Multi-domain]  Cd Length: 50  Bit Score: 58.26  E-value: 1.20e-10
                           10        20        30        40
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNY 1208
Cdd:cd11818      5 LYDFTGENEDELSFKAGDIITELESIDEEWMSGELRGKSGIFPKNF 50
SH3_Sla1p_2 cd11774
Second Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates ...
1159-1209 1.31e-10

Second Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates endocytosis by playing a role as an adaptor protein in coupling components of the actin cytoskeleton to the endocytic machinery. It interacts with Abp1p, Las17p and Pan1p, which are activator proteins of actin-related protein 2/3 (Arp2/3). Sla1p contains multiple domains including three SH3 domains, a SAM (sterile alpha motif) domain, and a Sla1 homology domain 1 (SHD1), which binds to the NPFXD motif that is found in many integral membrane proteins such as the Golgi-localized Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and Dnf1p. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212708 [Multi-domain]  Cd Length: 52  Bit Score: 58.25  E-value: 1.31e-10
                           10        20        30        40        50
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gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDW-WKGEVNGQVGLFPSNYV 1209
Cdd:cd11774      1 QAKALYDYDKQTEEELSFNEGDTLDVYDDSDSDWiLVGFNGTQFGFVPANYI 52
SH3_betaPIX cd12061
Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho ...
1009-1056 1.41e-10

Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho guanine nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned out of Library)-1, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and plays important roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212994 [Multi-domain]  Cd Length: 54  Bit Score: 58.16  E-value: 1.41e-10
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTK-KDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd12061      4 AKFNFQQTNEDELSFSKGDVIHVTRvEEGGWWEGTHNGRTGWFPSNYVR 52
SH3_Intersectin_1 cd11836
First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor ...
1163-1209 1.53e-10

First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212770 [Multi-domain]  Cd Length: 55  Bit Score: 58.14  E-value: 1.53e-10
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVL--NKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11836      5 LYAFEARNPDEISFQPGDIIQVDesQVAEPGWLAGELKGKTGWFPANYV 53
SH3_Nck2_2 cd11902
Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
1164-1209 1.59e-10

Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212835 [Multi-domain]  Cd Length: 55  Bit Score: 58.09  E-value: 1.59e-10
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gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11902      7 FAYVAEREDELSLVKGSRVTVMEKCSDGWWRGSYNGQIGWFPSNYV 52
SH3_Alpha_Spectrin cd11808
Src homology 3 domain of Alpha Spectrin; Spectrin is a major structural component of the red ...
1160-1210 2.30e-10

Src homology 3 domain of Alpha Spectrin; Spectrin is a major structural component of the red blood cell membrane skeleton and is important in erythropoiesis and membrane biogenesis. It is a flexible, rope-like molecule composed of two subunits, alpha and beta, which consist of many spectrin-type repeats. Alpha and beta spectrin associate to form heterodimers and tetramers; spectrin tetramer formation is critical for red cell shape and deformability. Defects in alpha spectrin have been associated with inherited hemolytic anemias including hereditary spherocytosis (HSp), hereditary elliptocytosis (HE), and hereditary pyropoikilocytosis (HPP). Alpha spectrin contains a middle SH3 domain and a C-terminal EF-hand binding motif in addition to multiple spectrin repeats. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212742 [Multi-domain]  Cd Length: 53  Bit Score: 57.49  E-value: 2.30e-10
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gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11808      2 VVALYDYQEKSPREVSMKKGDILTLLNSSNKDWWKVEVNDRQGFVPAAYVK 52
SH3_GRAP2_N cd11947
N-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
1162-1209 2.37e-10

N-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also have roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The N-terminal SH3 domain of the related protein GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212880 [Multi-domain]  Cd Length: 52  Bit Score: 57.50  E-value: 2.37e-10
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKEDpDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11947      4 GKFDFTASGEDELSFKKGDVLKILSSDD-IWFKAELNGEEGYVPKNFV 50
SH3_Eve1_3 cd11816
Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1164-1209 2.40e-10

Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212750 [Multi-domain]  Cd Length: 51  Bit Score: 57.42  E-value: 2.40e-10
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11816      6 FDFEGEQEDELSFSEGDVITLKEYVGEEWAKGELNGKIGIFPLNFV 51
SH3_Nebulin_family_C cd11789
C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins ...
1159-1211 2.42e-10

C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins contain multiple nebulin repeats, and may contain an N-terminal LIM domain and/or a C-terminal SH3 domain. They have molecular weights ranging from 34 to 900 kD, depending on the number of nebulin repeats, and they all bind actin. They are involved in the regulation of actin filament architecture and function as stabilizers and scaffolds for cytoskeletal structures with which they associate, such as long actin filaments or focal adhesions. Nebulin family proteins that contain a C-terminal SH3 domain include the giant filamentous protein nebulin, nebulette, Lasp1, and Lasp2. Lasp2, also called LIM-nebulette, is an alternatively spliced variant of nebulette. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212723 [Multi-domain]  Cd Length: 55  Bit Score: 57.33  E-value: 2.42e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEV--NGQVGLFPSNYVKL 1211
Cdd:cd11789      1 RYRAMYDYAAADDDEVSFQEGDVIINVEIIDDGWMEGTVqrTGQSGMLPANYVEL 55
SH3_Nck_2 cd11766
Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
917-966 2.86e-10

Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212700 [Multi-domain]  Cd Length: 53  Bit Score: 57.28  E-value: 2.86e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQ-DMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11766      1 PAVVKFNYEAQREDELSLRKGDRVLVLEKSsDGWWRGECNGQVGWFPSNYV 51
CwlO1 COG3883
Uncharacterized N-terminal coiled-coil domain of peptidoglycan hydrolase CwlO [Function ...
460-780 3.22e-10

Uncharacterized N-terminal coiled-coil domain of peptidoglycan hydrolase CwlO [Function unknown];


Pssm-ID: 443091 [Multi-domain]  Cd Length: 379  Bit Score: 64.08  E-value: 3.22e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  460 QRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLqqqlqesqqmlg 539
Cdd:COG3883     17 QIQAKQKELSELQAELEAAQAELDALQAELEELNEEYNELQAELEALQAEIDKLQAEIAEAEAEIEER------------ 84
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  540 rlipeKQILNDQLKQVQQNSLHRDSLVTLkraLEAKELARqhLRDQLDEVEKETRSKLQEIDifnnQLKELREIHNKQQL 619
Cdd:COG3883     85 -----REELGERARALYRSGGSVSYLDVL---LGSESFSD--FLDRLSALSKIADADADLLE----ELKADKAELEAKKA 150
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  620 QKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQ 699
Cdd:COG3883    151 ELEAKLAELEALKAELEAAKAELEAQQAEQEALLAQLSAEEAAAEAQLAELEAELAAAEAAAAAAAAAAAAAAAAAAAAA 230
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  700 EAQDKLGRLFHQHQEPAKPAVQAPWSTAEKGPLTISAQENVKVVYYRALYPFESRSHDEITIQPGDIVMVKGEWVDESQT 779
Cdd:COG3883    231 AAAAAAAAAAAAAASAAGAGAAGAAGAAAGSAGAAGAAAGAAGAGAAAASAAGGGAGGAGGGGGGGGAASGGSGGGSGGA 310

                   .
gi 1034627469  780 G 780
Cdd:COG3883    311 G 311
Mplasa_alph_rch TIGR04523
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
335-720 4.48e-10

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.


Pssm-ID: 275316 [Multi-domain]  Cd Length: 745  Bit Score: 64.66  E-value: 4.48e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLpvtfEDKKRENFERGNlELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKrqlELEKQLE 414
Cdd:TIGR04523  340 LNEQISQLKKEL----TNSESENSEKQR-ELEEKQNEIEKLKKENQSYKQEIKNLESQINDLESKIQNQE---KLNQQKD 411
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  415 KQRELERQReeerrkeierreaaKRELERQRQlewernrrqELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEG 494
Cdd:TIGR04523  412 EQIKKLQQE--------------KELLEKEIE---------RLKETIIKNNSEIKDLTNQDSVKELIIKNLDNTRESLET 468
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  495 KLQDIRCRLTTQRQEIESTNKSRELRIAEIThlqqqlqesqqmlgRLIPEKQILNDQLKQVQQNSlhrDSLVTLKRALEA 574
Cdd:TIGR04523  469 QLKVLSRSINKIKQNLEQKQKELKSKEKELK--------------KLNEEKKELEEKVKDLTKKI---SSLKEKIEKLES 531
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  575 ----KELARQHLRDQLDEVEKE-TRSKLQ-EIDIFNNQLKELReiHNKQQLQKQKSMEAERLKQKEQERKiiELEKQKEE 648
Cdd:TIGR04523  532 ekkeKESKISDLEDELNKDDFElKKENLEkEIDEKNKEIEELK--QTQKSLKKKQEEKQELIDQKEKEKK--DLIKEIEE 607
                          330       340       350       360       370       380       390
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  649 AQRRAQERDKQwLEHVQQEDEhqrprKLHEEEKlkreesvkkkdgeekGKQEAQDKLGRLFHQHQEPAKPAV 720
Cdd:TIGR04523  608 KEKKISSLEKE-LEKAKKENE-----KLSSIIK---------------NIKSKKNKLKQEVKQIKETIKEIR 658
Caldesmon pfam02029
Caldesmon;
387-686 4.49e-10

Caldesmon;


Pssm-ID: 460421 [Multi-domain]  Cd Length: 495  Bit Score: 64.12  E-value: 4.49e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  387 ERAEQERKERERQEQERKRQLE--------LEKQLEKQRELERQREEERRKEIERREAA------KRELERQRQLEWERN 452
Cdd:pfam02029    5 EEAARERRRRAREERRRQKEEEepsgqvteSVEPNEHNSYEEDSELKPSGQGGLDEEEAfldrtaKREERRQKRLQEALE 84
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  453 RRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKL----------QDIRCRLTTQRQEIESTNKSRELRIA 522
Cdd:pfam02029   85 RQKEFDPTIADEKESVAERKENNEEEENSSWEKEEKRDSRLGRYkeeeteirekEYQENKWSTEVRQAEEEGEEEEDKSE 164
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  523 EITHLQQQLQESQQMLGRLIPE--------KQILNDQLKQVQQNSLHRDSLVTlkrALEAKELARQHLRDQLDEVEKETR 594
Cdd:pfam02029  165 EAEEVPTENFAKEEVKDEKIKKekkvkyesKVFLDQKRGHPEVKSQNGEEEVT---KLKVTTKRRQGGLSQSQEREEEAE 241
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  595 SKLQEidifNNQLKELReihnkQQLQKQKSMEAERLKQKEQERkIIELE--KQKEEAQRRAQErdkqwlehvqqedEHQR 672
Cdd:pfam02029  242 VFLEA----EQKLEELR-----RRRQEKESEEFEKLRQKQQEA-ELELEelKKKREERRKLLE-------------EEEQ 298
                          330
                   ....*....|....
gi 1034627469  673 PRKLHEEEKLKREE 686
Cdd:pfam02029  299 RRKQEEAERKLREE 312
SH3_Sorbs2_1 cd11920
First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
1163-1210 4.92e-10

First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212853 [Multi-domain]  Cd Length: 55  Bit Score: 56.56  E-value: 4.92e-10
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11920      6 VYDFKAQTSKELSFKKGDTVYILRKIDQNWYEGEHHGRVGIFPISYVE 53
SH3_D21-like cd12142
Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; ...
744-802 5.01e-10

Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; N-terminal SH3 domain of the uncharacterized protein SH3 domain-containing protein 21, and similar uncharacterized domains, it belongs to the CD2AP-like_3 subfamily of proteins. The CD2AP-like_3 subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213018 [Multi-domain]  Cd Length: 55  Bit Score: 56.70  E-value: 5.01e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKGEwvdesQTGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd12142      1 YCRVLFDYNPVAPDELALKKGDVIEVISK-----ETEDEGWWEGELNGRRGFFPDNFVM 54
SH3_OSTF1 cd11772
Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or ...
745-802 5.03e-10

Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or SH3P2, is a signaling protein containing SH3 and ankyrin-repeat domains. It acts through a Src-related pathway to enhance the formation of osteoclasts and bone resorption. It also acts as a negative regulator of cell motility. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212706 [Multi-domain]  Cd Length: 53  Bit Score: 56.54  E-value: 5.03e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11772      2 FRALYDYEAQHPDELSFEEGDLLYI-------SDKSDPNWWKATCGGKTGLIPSNYVE 52
DUF4670 pfam15709
Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins ...
330-517 5.07e-10

Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins in this family are typically between 373 and 763 amino acids in length.


Pssm-ID: 464815 [Multi-domain]  Cd Length: 522  Bit Score: 64.20  E-value: 5.07e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  330 PEEPV-LEDEQQQLEKKLPVTFEDKKRENFERGN---LELEKRRQALLEQQRKEQErlaQLERAEQERKERERQEQERKR 405
Cdd:pfam15709  311 SEEERsEEDPSKALLEKREQEKASRDRLRAERAEmrrLEVERKRREQEEQRRLQQE---QLERAEKMREELELEQQRRFE 387
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  406 QLELEKQlekQRELERQREEERRKEIERREAAKRELERQRQLEWERnRRQELlnQRNKEQEDIVVLKAKKKTL-EFELEA 484
Cdd:pfam15709  388 EIRLRKQ---RLEEERQRQEEEERKQRLQLQAAQERARQQQEEFRR-KLQEL--QRKKQQEEAERAEAEKQRQkELEMQL 461
                          170       180       190
                   ....*....|....*....|....*....|...
gi 1034627469  485 LNDKKHQLEGKLQDircRLTTQRQEIESTNKSR 517
Cdd:pfam15709  462 AEEQKRLMEMAEEE---RLEYQRQKQEAEEKAR 491
SH3_ASPP cd11807
Src homology 3 domain of Apoptosis Stimulating of p53 proteins (ASPP); The ASPP family of ...
1159-1211 5.33e-10

Src homology 3 domain of Apoptosis Stimulating of p53 proteins (ASPP); The ASPP family of proteins bind to important regulators of apoptosis (p53, Bcl-2, and RelA) and cell growth (APCL, PP1). They share similarity at their C-termini, where they harbor a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain. Vertebrates contain three members of the family: ASPP1, ASPP2, and iASPP. ASPP1 and ASPP2 activate the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73), while iASPP is an oncoprotein that specifically inhibits p53-induced apoptosis. The expression of ASPP proteins is altered in tumors; ASPP1 and ASPP2 are downregulated whereas iASPP is upregulated is some cancer types. ASPP proteins also bind and regulate protein phosphatase 1 (PP1), and this binding is competitive with p53 binding. The SH3 domain and the ANK repeats of ASPP contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212741 [Multi-domain]  Cd Length: 57  Bit Score: 56.62  E-value: 5.33e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPD---WWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11807      2 VVYALFDYEAENGDELSFREGDELTVLRKGDDDeteWWWARLNDKEGYVPRNLLGL 57
SH3_SGSM3 cd11813
Src Homology 3 domain of Small G protein Signaling Modulator 3; SGSM3 is also called ...
917-968 5.49e-10

Src Homology 3 domain of Small G protein Signaling Modulator 3; SGSM3 is also called Merlin-associated protein (MAP), RUN and SH3 domain-containing protein (RUSC3), RUN and TBC1 domain-containing protein 3 (RUTBC3), Rab GTPase-activating protein 5 (RabGAP5), or Rab GAP-like protein (RabGAPLP). It is expressed ubiquitously and functions as a regulator of small G protein RAP- and RAB-mediated neuronal signaling. It is involved in modulating NGF-mediated neurite outgrowth and differentiation. It also interacts with the tumor suppressor merlin and may play a role in the merlin-associated suppression of cell growth. SGSM3 contains TBC, SH3, and RUN domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212747  Cd Length: 53  Bit Score: 56.35  E-value: 5.49e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11813      1 RAKALLDFERHDDDELGFRKNDIITIISQKDeHCWVGELNGLRGWFPAKFVEL 53
SH3_VAV3_2 cd11978
C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed ...
1161-1210 5.62e-10

C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed and functions as a phosphorylation-dependent guanine nucleotide exchange factor (GEF) for RhoA, RhoG, and Rac1. It has been implicated to function in the hematopoietic, bone, cerebellar, and cardiovascular systems. VAV3 is essential in axon guidance in neurons that control blood pressure and respiration. It is overexpressed in prostate cancer cells and it plays a role in regulating androgen receptor transcriptional activity. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212911 [Multi-domain]  Cd Length: 56  Bit Score: 56.57  E-value: 5.62e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPD-WWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11978      4 IARYDFCARDMRELSLLKGDVVKIYTKMSTNgWWRGEVNGRVGWFPSTYVE 54
SH3_SH3YL1_like cd11841
Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes ...
917-967 5.66e-10

Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes to the plasma membrane and is required for dorsal ruffle formation. It binds phosphoinositides (PIs) with high affinity through its N-terminal SYLF domain (also called DUF500). In addition, SH3YL1 contains a C-terminal SH3 domain which has been reported to bind to N-WASP, dynamin 2, and SHIP2 (a PI 5-phosphatase). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212775  Cd Length: 54  Bit Score: 56.25  E-value: 5.66e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVL---EQQDMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd11841      1 EVTALYSFEGQQPCDLSFQAGDRITVLtrtDSQFDWWEGRLRGRVGIFPANYVS 54
C2A_MCTP_PRT_plant cd04022
C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
1597-1680 5.83e-10

C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); plant subset; MCTPs are involved in Ca2+ signaling at the membrane. Plant-MCTPs are composed of a variable N-terminal sequence, four C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-II topology.


Pssm-ID: 175989 [Multi-domain]  Cd Length: 127  Bit Score: 58.89  E-value: 5.83e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1597 RLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRD---LEQEVLCITVF-ERDQFSPD 1672
Cdd:cd04022      1 KLVVEVVDAQDLMPKDGQGSSSAYVELDFDGQKKRTRTKPKDLNPVWNEKLVFNVSDpsrLSNLVLEVYVYnDRRSGRRR 80

                   ....*...
gi 1034627469 1673 DFLGRTEI 1680
Cdd:cd04022     81 SFLGRVRI 88
SH3_GRAF-like cd11882
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar ...
746-802 5.94e-10

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar proteins; This subfamily is composed of Rho GTPase activating proteins (GAPs) with similarity to GRAF. Members contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. Although vertebrates harbor four Rho GAPs in the GRAF subfamily including GRAF, GRAF2, GRAF3, and Oligophrenin-1 (OPHN1), only three are included in this model. OPHN1 contains the BAR, PH and GAP domains, but not the C-terminal SH3 domain. GRAF and GRAF2 show GAP activity towards RhoA and Cdc42. GRAF influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase. GRAF2 regulates caspase-activated p21-activated protein kinase-2. The SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212815 [Multi-domain]  Cd Length: 54  Bit Score: 56.15  E-value: 5.94e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVmvkgewVDESQTGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11882      3 RALYACKAEDESELSFEPGQII------TNVQPSDEPGWLEGTLNGRTGLIPENYVE 53
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
376-685 6.18e-10

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 64.32  E-value: 6.18e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  376 QRKEQERLAQL-ERAEQERKERERQEQERKRQLELEKQLEKQRELERQREEERrkeierreaaKRELER-QRQLEWERNR 453
Cdd:TIGR02169  669 SRSEPAELQRLrERLEGLKRELSSLQSELRRIENRLDELSQELSDASRKIGEI----------EKEIEQlEQEEEKLKER 738
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  454 RQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQR--------QEIESTNKSRELRIAEIT 525
Cdd:TIGR02169  739 LEELEEDLSSLEQEIENVKSELKELEARIEELEEDLHKLEEALNDLEARLSHSRipeiqaelSKLEEEVSRIEARLREIE 818
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  526 HLQQQLQESQQMLGRLIPEKQILNDQLKQvQQNSLHR--DSLVTLKRALEA----KELARQHLRDQLDEVEKET---RSK 596
Cdd:TIGR02169  819 QKLNRLTLEKEYLEKEIQELQEQRIDLKE-QIKSIEKeiENLNGKKEELEEeleeLEAALRDLESRLGDLKKERdelEAQ 897
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  597 LQEIDIFNNQLKELREIHNKQ--QLQKQKSMEAERLKQKEQERKIIELEKQKE------EAQRRAQERDKQWLEHV---- 664
Cdd:TIGR02169  898 LRELERKIEELEAQIEKKRKRlsELKAKLEALEEELSEIEDPKGEDEEIPEEElsledvQAELQRVEEEIRALEPVnmla 977
                          330       340
                   ....*....|....*....|....
gi 1034627469  665 -QQEDEHQRPRKLHEE--EKLKRE 685
Cdd:TIGR02169  978 iQEYEEVLKRLDELKEkrAKLEEE 1001
SH3_Intersectin2_5 cd11996
Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1006-1057 6.37e-10

Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212929 [Multi-domain]  Cd Length: 54  Bit Score: 56.14  E-value: 6.37e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKKDG-DWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11996      2 QVIAMYDYTANNEDELSFSKGQLINVLNKDDpDWWQGEINGVTGLFPSNYVKM 54
SH3_VAV1_2 cd11976
C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly ...
746-803 6.67e-10

C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly in the hematopoietic system and it plays an important role in the development and activation of B and T cells. It is activated by tyrosine phosphorylation to function as a guanine nucleotide exchange factor (GEF) for Rho GTPases following cell surface receptor activation, triggering various effects such as cytoskeletal reorganization, transcription regulation, cell cycle progression, and calcium mobilization. It also serves as a scaffold protein and has been shown to interact with Ku70, Socs1, Janus kinase 2, SIAH2, S100B, Abl gene, ZAP-70, SLP76, and Syk, among others. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The C-terminal SH3 domain of Vav1 interacts with a wide variety of proteins including cytoskeletal regulators (zyxin), RNA-binding proteins (Sam68), transcriptional regulators, viral proteins, and dynamin 2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212909 [Multi-domain]  Cd Length: 54  Bit Score: 56.11  E-value: 6.67e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKgewvdeSQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11976      3 KARYDFCARDRSELSLKEGDIIKIL------NKKGQQGWWRGEIYGRVGWFPANYVEE 54
C2A_RIM1alpha cd04031
C2 domain first repeat contained in Rab3-interacting molecule (RIM) proteins; RIMs are ...
1596-1684 6.89e-10

C2 domain first repeat contained in Rab3-interacting molecule (RIM) proteins; RIMs are believed to organize specialized sites of the plasma membrane called active zones. They also play a role in controlling neurotransmitter release, plasticity processes, as well as memory and learning. RIM contains an N-terminal zinc finger domain, a PDZ domain, and two C-terminal C2 domains (C2A, C2B). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology and do not bind Ca2+.


Pssm-ID: 175997 [Multi-domain]  Cd Length: 125  Bit Score: 58.41  E-value: 6.89e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTM---GSQCHI--TKTIQDTLNPKWNsncQFFI------RDLEQEVLCITVF 1664
Cdd:cd04031     16 SQLIVTVLQARDLPPRDDGSLRNPYVKVYLlpdRSEKSKrrTKTVKKTLNPEWN---QTFEysnvrrETLKERTLEVTVW 92
                           90       100
                   ....*....|....*....|
gi 1034627469 1665 ERDQFSPDDFLGRTEIRVAD 1684
Cdd:cd04031     93 DYDRDGENDFLGEVVIDLAD 112
C2_NEDD4_NEDD4L cd04033
C2 domain present in the Human neural precursor cell-expressed, developmentally down-regulated ...
1598-1697 7.15e-10

C2 domain present in the Human neural precursor cell-expressed, developmentally down-regulated 4 (NEDD4) and NEDD4-like (NEDD4L/NEDD42); Nedd4 and Nedd4-2 are two of the nine members of the Human Nedd4 family. All vertebrates appear to have both Nedd4 and Nedd4-2 genes. They are thought to participate in the regulation of epithelial Na+ channel (ENaC) activity. They also have identical specificity for ubiquitin conjugating enzymes (E2). Nedd4 and Nedd4-2 are composed of a C2 domain, 2-4 WW domains, and a ubiquitin ligase Hect domain. Their WW domains can bind PPxY (PY) or LPSY motifs, and in vitro studies suggest that WW3 and WW4 of both proteins bind PY motifs in the key substrates, with WW3 generally exhibiting higher affinity. Most Nedd4 family members, especially Nedd4-2, also have multiple splice variants, which might play different roles in regulating their substrates. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 175999 [Multi-domain]  Cd Length: 133  Bit Score: 58.52  E-value: 7.15e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1598 LMVNVVEGIELKPCRSHGKSNPYCEVTM-------GSQCHITKTIQDTLNPKWnsNCQFFIR-DLEQEVLCITVFERDQF 1669
Cdd:cd04033      2 LRVKVLAGIDLAKKDIFGASDPYVKISLydpdgngEIDSVQTKTIKKTLNPKW--NEEFFFRvNPREHRLLFEVFDENRL 79
                           90       100
                   ....*....|....*....|....*....
gi 1034627469 1670 SPDDFLGRTEIRVADIK-KDQGSKGPVTK 1697
Cdd:cd04033     80 TRDDFLGQVEVPLNNLPtETPGNERRYTF 108
Caldesmon pfam02029
Caldesmon;
379-686 7.29e-10

Caldesmon;


Pssm-ID: 460421 [Multi-domain]  Cd Length: 495  Bit Score: 63.35  E-value: 7.29e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  379 EQERLAQLERAEQERKERERQEQERKRQLELEKQLEKQRELERQREEERRKEIERRE---------AAKRELERQRQLEW 449
Cdd:pfam02029    2 EDEEEAARERRRRAREERRRQKEEEEPSGQVTESVEPNEHNSYEEDSELKPSGQGGLdeeeafldrTAKREERRQKRLQE 81
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  450 ERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKL----------QDIRCRLTTQRQEIESTNKSREL 519
Cdd:pfam02029   82 ALERQKEFDPTIADEKESVAERKENNEEEENSSWEKEEKRDSRLGRYkeeeteirekEYQENKWSTEVRQAEEEGEEEED 161
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  520 RIAEITHLQQQLQESQQMLGRLIPE--------KQILNDQLKQVQQNSLHRDSLVTlkrALEAKELARQHLRDQLDEVEK 591
Cdd:pfam02029  162 KSEEAEEVPTENFAKEEVKDEKIKKekkvkyesKVFLDQKRGHPEVKSQNGEEEVT---KLKVTTKRRQGGLSQSQEREE 238
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  592 ETRSKLQEidifNNQLKELReihnkQQLQKQKSMEAERLKQKEQERkIIELE--KQKEEAQRRAQERDKQwlehvQQEDE 669
Cdd:pfam02029  239 EAEVFLEA----EQKLEELR-----RRRQEKESEEFEKLRQKQQEA-ELELEelKKKREERRKLLEEEEQ-----RRKQE 303
                          330
                   ....*....|....*..
gi 1034627469  670 HQRPRKLHEEEKLKREE 686
Cdd:pfam02029  304 EAERKLREEEEKRRMKE 320
SH3_CD2AP-like_1 cd11873
First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This ...
1006-1056 7.54e-10

First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This subfamily is composed of the first SH3 domain (SH3A) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3A of both proteins bind to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic domain of the cell adhesion protein CD2. CIN85 SH3A binds to internal proline-rich motifs within the proline-rich region; this intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. CIN85 SH3A has also been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212806 [Multi-domain]  Cd Length: 53  Bit Score: 56.12  E-value: 7.54e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd11873      1 EVIVEFDYDAEEPDELTLKVGDIITnVKKMEEGWWEGTLNGKRGMFPDNFVK 52
SH3_AHI-1 cd11812
Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called ...
920-966 7.62e-10

Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called Jouberin, is expressed in high levels in the brain, gonad tissues, and skeletal muscle. It is an adaptor protein that interacts with the small GTPase Rab8a and regulates it distribution and function, affecting cilium formation and vesicle transport. Mutations in the AHI-1 gene can cause Joubert syndrome, a disorder characterized by brainstem malformations, cerebellar aplasia/hypoplasia, and retinal dystrophy. AHI-1 variation is also associated with susceptibility to schizophrenia and type 2 diabetes mellitus progression. AHI-1 contains WD40 and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212746 [Multi-domain]  Cd Length: 52  Bit Score: 55.98  E-value: 7.62e-10
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGE-VQGQKGWFPKSYV 966
Cdd:cd11812      4 ALYDYTANRSDELTIHRGDIIRVLYKdNDNWWFGSlVNGQQGYFPANYV 52
SH3_1 pfam00018
SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal ...
919-962 7.70e-10

SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 394975 [Multi-domain]  Cd Length: 47  Bit Score: 55.67  E-value: 7.70e-10
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQ-DMWWFGEVQ-GQKGWFP 962
Cdd:pfam00018    1 VALYDYTAQEPDELSFKKGDIIIVLEKSeDGWWKGRNKgGKEGLIP 46
PH1_FGD5_FGD6 cd13389
FYVE, RhoGEF and PH domain containing/faciogenital dysplasia proteins 5 and 6, N-terminal ...
1461-1581 7.96e-10

FYVE, RhoGEF and PH domain containing/faciogenital dysplasia proteins 5 and 6, N-terminal Pleckstrin Homology (PH) domain; FGD5 regulates promotes angiogenesis of vascular endothelial growth factor (VEGF) in vascular endothelial cells, including network formation, permeability, directional movement, and proliferation. The specific function of FGD6 is unknown. In general, FGDs have a RhoGEF (DH) domain, followed by a PH domain, a FYVE domain and a C-terminal PH domain. All FGDs are guanine nucleotide exchange factors that activate the Rho GTPase Cdc42, an important regulator of membrane trafficking. The RhoGEF domain is responsible for GEF catalytic activity, while the PH domain is involved in intracellular targeting of the DH domain. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 275424  Cd Length: 124  Bit Score: 58.44  E-value: 7.96e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1461 RKFLHSGKLYKAkSNKEL---YGFLFNDFLLltqITKPLGSSGTDKVFS--PKSNLQYKMYKTPIFLNEvlvklptdpsg 1535
Cdd:cd13389     12 RKLIKEGELMKV-SRKEMqprYFFLFNDCLL---YTTPVQSSGMLKLNNelPLSGMKVKLPEDEEYSNE----------- 76
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1536 depiFHISHIDRVYTLRAESINERTAWVQKIKAAselyIETEKKKR 1581
Cdd:cd13389     77 ----FQIISTKRSFTLIASSEEERDEWVKALSRA----IEEHTKKQ 114
SH3_Eve1_2 cd11815
Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1163-1210 8.66e-10

Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212749 [Multi-domain]  Cd Length: 52  Bit Score: 56.04  E-value: 8.66e-10
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11815      5 LHDFPAEHSDDLSLNSGEIVYLLEKIDTEWYRGKCKNTTGIFPANHVK 52
SH3_Fyn_Yrk cd12006
Src homology 3 domain of Fyn and Yrk Protein Tyrosine Kinases; Fyn and Yrk (Yes-related kinase) ...
1161-1209 9.37e-10

Src homology 3 domain of Fyn and Yrk Protein Tyrosine Kinases; Fyn and Yrk (Yes-related kinase) are members of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Fyn, together with Lck, plays a critical role in T-cell signal transduction by phosphorylating ITAM (immunoreceptor tyr activation motif) sequences on T-cell receptors, ultimately leading to the proliferation and differentiation of T-cells. In addition, Fyn is involved in the myelination of neurons, and is implicated in Alzheimer's and Parkinson's diseases. Yrk has been detected only in chickens. It is primarily found in neuronal and epithelial cells and in macrophages. It may play a role in inflammation and in response to injury. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212939 [Multi-domain]  Cd Length: 56  Bit Score: 55.83  E-value: 9.37e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGE--VNGQVGLFPSNYV 1209
Cdd:cd12006      4 VALYDYEARTEDDLSFHKGEKFQILNSSEGDWWEARslTTGETGYIPSNYV 54
SH3_Cortactin_like cd11819
Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, ...
917-968 9.56e-10

Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, Abp1 (actin-binding protein 1), hematopoietic lineage cell-specific protein 1 (HS1), and similar proteins. These proteins are involved in regulating actin dynamics through direct or indirect interaction with the Arp2/3 complex, which is required to initiate actin polymerization. They all contain at least one C-terminal SH3 domain. Cortactin and HS1 bind Arp2/3 and actin through an N-terminal region that contains an acidic domain and several copies of a repeat domain found in cortactin and HS1. Abp1 binds actin via an N-terminal actin-depolymerizing factor (ADF) homology domain. Yeast Abp1 binds Arp2/3 directly through two acidic domains. Mammalian Abp1 does not directly interact with Arp2/3; instead, it regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. The C-terminal region of these proteins acts as an adaptor or scaffold that can connect membrane trafficking and signaling proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212753 [Multi-domain]  Cd Length: 54  Bit Score: 55.78  E-value: 9.56e-10
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEV-QGQKGWFPKSYVKL 968
Cdd:cd11819      1 RAKALYDYQAAEDNEISFVEGDIITQIEQIDEgWWLGVNaKGQKGLFPANYVEL 54
SH3_Nostrin cd11823
Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in ...
1009-1055 9.68e-10

Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in endothelial and epithelial cells and is involved in the regulation, trafficking and targeting of endothelial NOS (eNOS). It facilitates the endocytosis of eNOS by coordinating the functions of dynamin and the Wiskott-Aldrich syndrome protein (WASP). Increased expression of Nostrin may be correlated to preeclampsia. Nostrin contains an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212757 [Multi-domain]  Cd Length: 53  Bit Score: 55.81  E-value: 9.68e-10
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11823      4 ALYSYTANREDELSLQPGDIIEVHEKQDDgWWLGELNGKKGIFPATYV 51
PTZ00121 PTZ00121
MAEBL; Provisional
331-683 9.74e-10

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 64.01  E-value: 9.74e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  331 EEPVLEDEQQQLEKKLPVTFEDKKRENFERGnlelEKRRQALLEQQRKEQERLAQLERAEQERK-------ERERQEQER 403
Cdd:PTZ00121  1500 DEAKKAAEAKKKADEAKKAEEAKKADEAKKA----EEAKKADEAKKAEEKKKADELKKAEELKKaeekkkaEEAKKAEED 1575
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  404 K----RQLELEKQLEKQRELERQREEERRKEIERREAAKRELERQR--QLEWERNRRQELLNQRNKEQEDivvlKAKKKT 477
Cdd:PTZ00121  1576 KnmalRKAEEAKKAEEARIEEVMKLYEEEKKMKAEEAKKAEEAKIKaeELKKAEEEKKKVEQLKKKEAEE----KKKAEE 1651
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  478 LEFELEALNDKKHQLegklqdircrlttQRQEIESTNKSRELRIAEithlqqqlqesqqmlgrlipekqilNDQLKQVQQ 557
Cdd:PTZ00121  1652 LKKAEEENKIKAAEE-------------AKKAEEDKKKAEEAKKAE-------------------------EDEKKAAEA 1693
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  558 nslhrdslvtLKRALEAKELARQHLRDQLDEVEK-ETRSKLQEIdifnNQLKeLREIHNKQQLQKQKsmeAERLKQKEQE 636
Cdd:PTZ00121  1694 ----------LKKEAEEAKKAEELKKKEAEEKKKaEELKKAEEE----NKIK-AEEAKKEAEEDKKK---AEEAKKDEEE 1755
                          330       340       350       360
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  637 RKIIELEKQKEEAQRRAQERDKQWL--EHVQQEDEhqrPRKLHEEEKLK 683
Cdd:PTZ00121  1756 KKKIAHLKKEEEKKAEEIRKEKEAVieEELDEEDE---KRRMEVDKKIK 1801
C2B_RasA1_RasA4 cd04025
C2 domain second repeat present in RasA1 and RasA4; RasA1 and RasA4 are GAP1s (GTPase ...
1597-1693 1.01e-09

C2 domain second repeat present in RasA1 and RasA4; RasA1 and RasA4 are GAP1s (GTPase activating protein 1s ), Ras-specific GAP members, which suppresses Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. Both proteins contain two C2 domains, a Ras-GAP domain, a plextrin homology (PH)-like domain, and a Bruton's Tyrosine Kinase (BTK) zinc binding domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 175991 [Multi-domain]  Cd Length: 123  Bit Score: 57.88  E-value: 1.01e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1597 RLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPDDFLG 1676
Cdd:cd04025      1 RLRCHVLEARDLAPKDRNGTSDPFVRVFYNGQTLETSVVKKSCYPRWNEVFEFELMEGADSPLSVEVWDWDLVSKNDFLG 80
                           90
                   ....*....|....*..
gi 1034627469 1677 RTEIRVADIKKDQGSKG 1693
Cdd:cd04025     81 KVVFSIQTLQQAKQEEG 97
SH3_Intersectin1_5 cd11995
Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1006-1057 1.07e-09

Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212928 [Multi-domain]  Cd Length: 54  Bit Score: 55.73  E-value: 1.07e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11995      2 QVIGMYDYTAQNDDELAFSKGQIInVLNKEDPDWWKGELNGQVGLFPSNYVKL 54
SH3_CD2AP_3 cd12056
Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ...
744-801 1.15e-09

Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CD2AP. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212989 [Multi-domain]  Cd Length: 57  Bit Score: 55.60  E-value: 1.15e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKGEwvdesQTGEPGWLGGELKGKTGWFPANYA 801
Cdd:cd12056      3 YCKALFHYEGTNEDELDFKEGEIILIISK-----DTGEPGWWKGELNGKEGVFPDNFV 55
SH3_PACSIN3 cd11997
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 3 (PACSIN3); ...
1159-1210 1.15e-09

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 3 (PACSIN3); PACSIN 3 or Syndapin III (Synaptic dynamin-associated protein III) is expressed ubiquitously and regulates glucose uptake in adipocytes through its role in GLUT1 trafficking. It also modulates the subcellular localization and stimulus-specific function of the cation channel TRPV4. PACSINs act as regulators of cytoskeletal and membrane dynamics. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212930 [Multi-domain]  Cd Length: 56  Bit Score: 55.74  E-value: 1.15e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPD-WWKGEV-NGQVGLFPSNYVK 1210
Cdd:cd11997      3 RVRALYDYTGQEADELSFKAGEELLKIGEEDEQgWCKGRLlSGRIGLYPANYVE 56
SH3_Sla1p_3 cd11775
Third Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates ...
1163-1211 1.16e-09

Third Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates endocytosis by playing a role as an adaptor protein in coupling components of the actin cytoskeleton to the endocytic machinery. It interacts with Abp1p, Las17p and Pan1p, which are activator proteins of actin-related protein 2/3 (Arp2/3). Sla1p contains multiple domains including three SH3 domains, a SAM (sterile alpha motif) domain, and a Sla1 homology domain 1 (SHD1), which binds to the NPFXD motif that is found in many integral membrane proteins such as the Golgi-localized Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and Dnf1p. The third SH3 domain of Sla1p can bind ubiquitin while retaining the ability to bind proline-rich ligands; monoubiquitination of target proteins signals internalization and sorting through the endocytic pathway. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212709 [Multi-domain]  Cd Length: 57  Bit Score: 55.79  E-value: 1.16e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDP-DWWKGE--VNGQVGLFPSNYVKL 1211
Cdd:cd11775      6 LYDFDAQSDDELTVKEGDVVYILDDKKSkDWWMVEnvSTGKEGVVPASYIEI 57
SH3_Blk cd12009
Src homology 3 domain of Blk Protein Tyrosine Kinase; Blk is a member of the Src subfamily of ...
1160-1209 1.19e-09

Src homology 3 domain of Blk Protein Tyrosine Kinase; Blk is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. It is expressed specifically in B-cells and is involved in pre-BCR (B-cell receptor) signaling. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212942 [Multi-domain]  Cd Length: 54  Bit Score: 55.59  E-value: 1.19e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLnKEDPDWW--KGEVNGQVGLFPSNYV 1209
Cdd:cd12009      2 VIAQYDFVPSNERDLQLKKGEKLQVL-KSDGEWWlaKSLTTGKEGYIPSNYV 52
SH3_Stac_1 cd11833
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) ...
1161-1209 1.23e-09

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) proteins; Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. This model represents the first C-terminal SH3 domain of Stac1 and Stac3, and the single C-terminal SH3 domain of Stac2. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212767 [Multi-domain]  Cd Length: 53  Bit Score: 55.59  E-value: 1.23e-09
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11833      3 VALYKFKPQENEDLEMRPGDKITLLDDSNEDWWKGKIEDRVGFFPANFV 51
SH3_Eve1_4 cd11817
Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1008-1054 1.31e-09

Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212751 [Multi-domain]  Cd Length: 50  Bit Score: 55.18  E-value: 1.31e-09
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNY 1054
Cdd:cd11817      3 VALYDFTGETEEDLSFQRGDRILVTEHlDAEWSRGRLNGREGIFPRAF 50
SH3_GRB2_like_C cd11805
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
917-967 1.31e-09

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212739 [Multi-domain]  Cd Length: 53  Bit Score: 55.33  E-value: 1.31e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVK 967
Cdd:cd11805      1 RVQALYDFNPQEPGELEFRRGDIITVLDSSDPdWWKGELRGRVGIFPANYVQ 52
sbcc TIGR00618
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
338-713 1.33e-09

exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 129705 [Multi-domain]  Cd Length: 1042  Bit Score: 63.45  E-value: 1.33e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  338 EQQQLEKKLPVTFEDKKRENFER--GNLELEKRRQALLEQQRKE-----QERLAQLERAEQERKERERQEQERKRQLELE 410
Cdd:TIGR00618  268 RIEELRAQEAVLEETQERINRARkaAPLAAHIKAVTQIEQQAQRihtelQSKMRSRAKLLMKRAAHVKQQSSIEEQRRLL 347
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  411 KQLEKQRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKH 490
Cdd:TIGR00618  348 QTLHSQEIHIRDAHEVATSIREISCQQHTLTQHIHTLQQQKTTLTQKLQSLCKELDILQREQATIDTRTSAFRDLQGQLA 427
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  491 QLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGrlipEKQILNDQLKQVQQNSLHR-DSLVTLK 569
Cdd:TIGR00618  428 HAKKQQELQQRYAELCAAAITCTAQCEKLEKIHLQESAQSLKEREQQLQ----TKEQIHLQETRKKAVVLARlLELQEEP 503
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  570 RALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREI-HNKQQLQKQksmeAERLKQKEQErkiielEKQKEE 648
Cdd:TIGR00618  504 CPLCGSCIHPNPARQDIDNPGPLTRRMQRGEQTYAQLETSEEDVyHQLTSERKQ----RASLKEQMQE------IQQSFS 573
                          330       340       350       360       370       380
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  649 AQRRAQERDKQWLEHVQQEDEHQRP--RKLHEEEKLKREESvkkkDGEEKGKQEAQDKLGRLFHQHQ 713
Cdd:TIGR00618  574 ILTQCDNRSKEDIPNLQNITVRLQDltEKLSEAEDMLACEQ----HALLRKLQPEQDLQDVRLHLQQ 636
PH smart00233
Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The ...
1463-1570 1.41e-09

Pleckstrin homology domain; Domain commonly found in eukaryotic signalling proteins. The domain family possesses multiple functions including the abilities to bind inositol phosphates, and various proteins. PH domains have been found to possess inserted domains (such as in PLC gamma, syntrophins) and to be inserted within other domains. Mutations in Brutons tyrosine kinase (Btk) within its PH domain cause X-linked agammaglobulinaemia (XLA) in patients. Point mutations cluster into the positively charged end of the molecule around the predicted binding site for phosphatidylinositol lipids.


Pssm-ID: 214574 [Multi-domain]  Cd Length: 102  Bit Score: 56.79  E-value: 1.41e-09
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  1463 FLHSGKLYKAKSN-----KELYGFLFNDFLLLtqitkplgssgtdkvFSPKSNLQYKMYKTPIFLNEVLVKLPTDPSGDE 1537
Cdd:smart00233    1 VIKEGWLYKKSGGgkkswKKRYFVLFNSTLLY---------------YKSKKDKKSYKPKGSIDLSGCTVREAPDPDSSK 65
                            90       100       110
                    ....*....|....*....|....*....|....*.
gi 1034627469  1538 P--IFHISHIDR-VYTLRAESINERTAWVQKIKAAS 1570
Cdd:smart00233   66 KphCFEIKTSDRkTLLLQAESEEEREKWVEALRKAI 101
SH3_Intersectin_3 cd11838
Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor ...
919-968 1.45e-09

Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. The SH3C of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212772 [Multi-domain]  Cd Length: 52  Bit Score: 55.11  E-value: 1.45e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11838      3 IALYPYESNEPGDLTFNAGDVILVTKKDGEWWTGTIGDRTGIFPSNYVRP 52
SH3_Stac_1 cd11833
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) ...
1007-1055 1.46e-09

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) proteins; Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. This model represents the first C-terminal SH3 domain of Stac1 and Stac3, and the single C-terminal SH3 domain of Stac2. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212767 [Multi-domain]  Cd Length: 53  Bit Score: 55.20  E-value: 1.46e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTK-KDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11833      2 YVALYKFKPQENEDLEMRPGDKITLLDdSNEDWWKGKIEDRVGFFPANFV 51
SH3_GRB2_C cd11949
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
918-967 1.48e-09

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRB2 binds to Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, as well as to the proline-rich C-terminus of FGRF2. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212882 [Multi-domain]  Cd Length: 53  Bit Score: 55.23  E-value: 1.48e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVK 967
Cdd:cd11949      2 VQALFDFDPQEDGELGFRRGDFIEVMDNSDPnWWKGACHGQTGMFPRNYVT 52
SH3_ephexin1_like cd11793
Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange ...
1159-1209 1.53e-09

Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange factors; Members of this family contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and C-terminal SH3 domains. They include the Rho guanine nucleotide exchange factors ARHGEF5, ARHGEF16, ARHGEF19, ARHGEF26, ARHGEF27 (also called ephexin-1), and similar proteins, and are also called ephexins because they interact directly with ephrin A receptors. GEFs interact with Rho GTPases via their DH domains to catalyze nucleotide exchange by stabilizing the nucleotide-free GTPase intermediate. They play important roles in neuronal development. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212727 [Multi-domain]  Cd Length: 55  Bit Score: 55.03  E-value: 1.53e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGE--VNGQVGLFPSNYV 1209
Cdd:cd11793      1 QVQCVHAYTAQQPDELTLEEGDVVNVLRKMPDGWYEGErlRDGERGWFPSSYT 53
C2_Smurf-like cd08382
C2 domain present in Smad ubiquitination-related factor (Smurf)-like proteins; A single C2 ...
1619-1713 1.68e-09

C2 domain present in Smad ubiquitination-related factor (Smurf)-like proteins; A single C2 domain is found in Smurf proteins, C2-WW-HECT-domain E3s, which play an important role in the downregulation of the TGF-beta signaling pathway. Smurf proteins also regulate cell shape, motility, and polarity by degrading small guanosine triphosphatases (GTPases). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have type-II topology.


Pssm-ID: 176028 [Multi-domain]  Cd Length: 123  Bit Score: 57.32  E-value: 1.68e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1619 PYCEVTM-GSQCHITKTIQDTLNPKWNSNCQFFIRDleQEVLCITVFERDQFSPDD--FLGRTEIRVADIkkdQGSKGPV 1695
Cdd:cd08382     23 PFAVITVdGGQTHSTDVAKKTLDPKWNEHFDLTVGP--SSIITIQVFDQKKFKKKDqgFLGCVRIRANAV---LPLKDTG 97
                           90       100
                   ....*....|....*....|....*
gi 1034627469 1696 TKCLLLH-------EVPTGEIVVRL 1713
Cdd:cd08382     98 YQRLDLRklkksdnLSVRGKIVVSL 122
SH3_Nostrin cd11823
Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in ...
1084-1133 1.79e-09

Src homology 3 domain of Nitric Oxide Synthase TRaffic INducer; Nostrin is expressed in endothelial and epithelial cells and is involved in the regulation, trafficking and targeting of endothelial NOS (eNOS). It facilitates the endocytosis of eNOS by coordinating the functions of dynamin and the Wiskott-Aldrich syndrome protein (WASP). Increased expression of Nostrin may be correlated to preeclampsia. Nostrin contains an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212757 [Multi-domain]  Cd Length: 53  Bit Score: 55.04  E-value: 1.79e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1084 SYTATGPEQLTLAPGQLILIRKKNPGGWWEGELqaRGKKrqiGWFPANYV 1133
Cdd:cd11823      7 SYTANREDELSLQPGDIIEVHEKQDDGWWLGEL--NGKK---GIFPATYV 51
SH3_MyoIe_If_like cd11827
Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If ...
746-803 1.86e-09

Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If (MyoIf) are nonmuscle, unconventional, long tailed, class I myosins containing an N-terminal motor domain and a myosin tail with TH1, TH2, and SH3 domains. MyoIe interacts with the endocytic proteins, dynamin and synaptojanin-1, through its SH3 domain; it may play a role in clathrin-dependent endocytosis. In the kidney, MyoIe is critical for podocyte function and normal glomerular filtration. Mutations in MyoIe is associated with focal segmental glomerulosclerosis, a disease characterized by massive proteinuria and progression to end-stage kidney disease. MyoIf is predominantly expressed in the immune system; it plays a role in immune cell motility and innate immunity. Mutations in MyoIf may be associated with the loss of hearing. The MyoIf gene has also been found to be fused to the MLL (Mixed lineage leukemia) gene in infant acute myeloid leukemias (AML). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212761 [Multi-domain]  Cd Length: 53  Bit Score: 54.73  E-value: 1.86e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwvDESqtgepGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11827      3 KALYAYDAQDTDELSFNEGDIIEILKE--DPS-----GWWTGRLRGKEGLFPGNYVEK 53
SH3_Intersectin2_2 cd11990
Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1166-1211 1.90e-09

Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212923 [Multi-domain]  Cd Length: 52  Bit Score: 55.05  E-value: 1.90e-09
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1166 YTAQNDDELAFNKGQIINVLNKEDpDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11990      8 WTAKKDNHLNFSKNDIITVLEQQE-NWWFGEVHGGRGWFPKSYVKL 52
SMC_N pfam02463
RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The ...
375-686 1.90e-09

RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. The eukaryotic SMC proteins form two kind of heterodimers: the SMC1/SMC3 and the SMC2/SMC4 types. These heterodimers constitute an essential part of higher order complexes, which are involved in chromatin and DNA dynamics. This family also includes the RecF and RecN proteins that are involved in DNA metabolism and recombination.


Pssm-ID: 426784 [Multi-domain]  Cd Length: 1161  Bit Score: 62.68  E-value: 1.90e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  375 QQRKEQERL--------AQLERAEQERKERERQEQERKRQLELEKqlekqrelerqreeerrkeierreaakRELERQRQ 446
Cdd:pfam02463  148 AMMKPERRLeieeeaagSRLKRKKKEALKKLIEETENLAELIIDL---------------------------EELKLQEL 200
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  447 LEwERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLegklqdircrLTTQRQEIESTNKSRELRIAEITH 526
Cdd:pfam02463  201 KL-KEQAKKALEYYQLKEKLELEEEYLLYLDYLKLNEERIDLLQEL----------LRDEQEEIESSKQEIEKEEEKLAQ 269
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  527 LQQQLQESQQmlgrlipEKQILNDQLKQVQQNSLhrdslvTLKRALEAKELARQHLRDQLDEVEKETRSKLQEID---IF 603
Cdd:pfam02463  270 VLKENKEEEK-------EKKLQEEELKLLAKEEE------ELKSELLKLERRKVDDEEKLKESEKEKKKAEKELKkekEE 336
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  604 NNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQ-WLEHVQQEDEHQRPRKLHEEEKL 682
Cdd:pfam02463  337 IEELEKELKELEIKREAEEEEEEELEKLQEKLEQLEEELLAKKKLESERLSSAAKLkEEELELKSEEEKEAQLLLELARQ 416

                   ....
gi 1034627469  683 KREE 686
Cdd:pfam02463  417 LEDL 420
SH3_9 pfam14604
Variant SH3 domain;
920-967 1.93e-09

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 54.54  E-value: 1.93e-09
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEVQGQKGWFPKSYVK 967
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITVIEEsEDGWWEGINTGRTGLVPANYVE 49
TPH pfam13868
Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of ...
338-683 2.05e-09

Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of eukaryotic proteins. Trichoplein or mitostatin, was first defined as a meiosis-specific nuclear structural protein. It has since been linked with mitochondrial movement. It is associated with the mitochondrial outer membrane, and over-expression leads to reduction in mitochondrial motility whereas lack of it enhances mitochondrial movement. The activity appears to be mediated through binding the mitochondria to the actin intermediate filaments (IFs). The family is in the trichohyalin-plectin-homology domain.


Pssm-ID: 464007 [Multi-domain]  Cd Length: 341  Bit Score: 61.09  E-value: 2.05e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  338 EQQQLEKKLpVTFEDKKREnfERGNLELEK-RRQALLEQQRKEQERL-----------AQLERAEQERKERERQEQERKR 405
Cdd:pfam13868   25 DAQIAEKKR-IKAEEKEEE--RRLDEMMEEeRERALEEEEEKEEERKeerkryrqeleEQIEEREQKRQEEYEEKLQERE 101
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  406 QL----------ELEKQLEKQrelerqreeerrkeiERREAAKRELERQRQlewERNRRQELLNQRNKEQEDIVVLKAKK 475
Cdd:pfam13868  102 QMdeiveriqeeDQAEAEEKL---------------EKQRQLREEIDEFNE---EQAEWKELEKEEEREEDERILEYLKE 163
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  476 KTLEFelEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEithlqqqlqesqqmlgRLIPEKQILNDQLKQV 555
Cdd:pfam13868  164 KAERE--EEREAEREEIEEEKEREIARLRAQQEKAQDEKAERDELRAK----------------LYQEEQERKERQKERE 225
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  556 QQnslhrdslvtLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKsmeaERLKQKEQ 635
Cdd:pfam13868  226 EA----------EKKARQRQELQQAREEQIELKERRLAEEAEREEEEFERMLRKQAEDEEIEQEEAEK----RRMKRLEH 291
                          330       340       350       360
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469  636 ERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQrpRKLHEEEKLK 683
Cdd:pfam13868  292 RRELEKQIEEREEQRAAEREEELEEGERLREEEAER--RERIEEERQK 337
SH3_2 pfam07653
Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in ...
918-969 2.12e-09

Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 429575 [Multi-domain]  Cd Length: 54  Bit Score: 54.91  E-value: 2.12e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEVQGQKGWFPKSYVKLI 969
Cdd:pfam07653    2 GRVIFDYVGTDKNGLTLKKGDVVKVLGKdNDGWWEGETGGRVGLVPSTAVEEI 54
SH3_alphaPIX cd12060
Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho ...
1009-1056 2.28e-09

Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho guanine nucleotide exchange factor 6 (ARHGEF6) or Cool (Cloned out of Library)-2, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and is localized in dendritic spines where it regulates spine morphogenesis. It controls dendritic length and spine density in the hippocampus. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212993  Cd Length: 58  Bit Score: 55.01  E-value: 2.28e-09
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTK-KDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd12060      6 ARFNFKQTNEDELSVCKGDIIYVTRvEEGGWWEGTLNGKTGWFPSNYVR 54
SH3_CD2AP_1 cd12053
First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ...
1159-1210 2.44e-09

First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CD2AP. SH3A binds to the PXXXPR motif present in c-Cbl and the cytoplasmic domain of cell adhesion protein CD2. Its interaction with CD2 anchors CD2 at sites of cell contact. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212986  Cd Length: 56  Bit Score: 54.85  E-value: 2.44e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQII-NVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12053      1 EYIVEYDYDAVHEDELTIRVGEIIrNVKKLEEEGWLEGELNGRRGMFPDNFVK 53
SH3_CSK cd11769
Src Homology 3 domain of C-terminal Src kinase; CSK is a cytoplasmic (or nonreceptor) tyr ...
1159-1210 2.49e-09

Src Homology 3 domain of C-terminal Src kinase; CSK is a cytoplasmic (or nonreceptor) tyr kinase containing the Src homology domains, SH3 and SH2, N-terminal to the catalytic tyr kinase domain. They negatively regulate the activity of Src kinases that are anchored to the plasma membrane. To inhibit Src kinases, CSK is translocated to the membrane via binding to specific transmembrane proteins, G-proteins, or adaptor proteins near the membrane. CSK catalyzes the tyr phosphorylation of the regulatory C-terminal tail of Src kinases, resulting in their inactivation. It is expressed in a wide variety of tissues and plays a role, as a regulator of Src, in cell proliferation, survival, and differentiation, and consequently, in cancer development and progression. In addition, CSK also shows Src-independent functions. It is a critical component in G-protein signaling, and plays a role in cytoskeletal reorganization and cell migration. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212703 [Multi-domain]  Cd Length: 57  Bit Score: 54.62  E-value: 2.49e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLN-KEDPDWWKGE-VNGQVGLFPSNYVK 1210
Cdd:cd11769      3 ECIAKYNFNGASEEDLPFKKGDILTIVAvTKDPNWYKAKnKDGREGMIPANYVQ 56
SH3_Nck_2 cd11766
Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
1078-1133 2.51e-09

Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212700 [Multi-domain]  Cd Length: 53  Bit Score: 54.58  E-value: 2.51e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1078 IAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQArgkkrQIGWFPANYV 1133
Cdd:cd11766      1 PAVVKFNYEAQREDELSLRKGDRVLVLEKSSDGWWRGECNG-----QVGWFPSNYV 51
C2B_MCTP_PRT cd08376
C2 domain second repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
1600-1689 2.63e-09

C2 domain second repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); MCTPs are involved in Ca2+ signaling at the membrane. MCTP is composed of a variable N-terminal sequence, three C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176022 [Multi-domain]  Cd Length: 116  Bit Score: 56.50  E-value: 2.63e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1600 VNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPDDFLGRTE 1679
Cdd:cd08376      4 IVLVEGKNLPPMDDNGLSDPYVKFRLGNEKYKSKVCSKTLNPQWLEQFDLHLFDDQSQILEIEVWDKDTGKKDEFIGRCE 83
                           90
                   ....*....|
gi 1034627469 1680 IRVADIKKDQ 1689
Cdd:cd08376     84 IDLSALPREQ 93
SH3_Stac2_C cd11985
C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); ...
1007-1056 2.65e-09

C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac2 contains a single SH3 domain at the C-terminus unlike Stac1 and Stac3, which contain two C-terminal SH3 domains. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212918  Cd Length: 53  Bit Score: 54.57  E-value: 2.65e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGD-VILVTKKDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd11985      2 YVALYKFLPQENNDLPLQPGDrVMVVDDSNEDWWKGKSGDRVGFFPANFVQ 52
SH3_Sorbs1_3 cd11916
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), ...
1162-1211 2.70e-09

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212849 [Multi-domain]  Cd Length: 59  Bit Score: 54.61  E-value: 2.70e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEV--NGQVGLFPSNYVKL 1211
Cdd:cd11916      6 ALYSYAPQNDDELELRDGDIVDVMEKCDDGWFVGTSrrTKQFGTFPGNYVKL 57
SH3_Intersectin2_3 cd11992
Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1159-1210 2.78e-09

Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (SH3C) of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212925  Cd Length: 52  Bit Score: 54.25  E-value: 2.78e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKeDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11992      1 EYIALYPYSSSEPGDLTFNEGEEILVTQK-DGEWWTGSIEDRTGIFPSNYVR 51
C2A_MCTP_PRT cd04042
C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
1597-1689 3.12e-09

C2 domain first repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); MCTPs are involved in Ca2+ signaling at the membrane. MCTP is composed of a variable N-terminal sequence, three C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-II topology.


Pssm-ID: 176007 [Multi-domain]  Cd Length: 121  Bit Score: 56.52  E-value: 3.12e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1597 RLMVNVVEGIELKPCRSHGKSNPYCEVTM-GSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLcITVFERDQFSPDDFL 1675
Cdd:cd04042      1 QLDIHLKEGRNLAARDRGGTSDPYVKFKYgGKTVYKSKTIYKNLNPVWDEKFTLPIEDVTQPLY-IKVFDYDRGLTDDFM 79
                           90
                   ....*....|....
gi 1034627469 1676 GRTEIRVADIKKDQ 1689
Cdd:cd04042     80 GSAFVDLSTLELNK 93
SH3_Irsp53_BAIAP2L cd11779
Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific ...
917-967 3.14e-09

Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2 (BAIAP2)-Like proteins, and similar proteins; Proteins in this family include IRSp53, BAIAP2L1, BAIAP2L2, and similar proteins. They all contain an Inverse-Bin/Amphiphysin/Rvs (I-BAR) or IMD domain in addition to the SH3 domain. IRSp53, also known as BAIAP2, is a scaffolding protein that takes part in many signaling pathways including Cdc42-induced filopodia formation, Rac-mediated lamellipodia extension, and spine morphogenesis. IRSp53 exists as multiple splicing variants that differ mainly at the C-termini. BAIAP2L1, also called IRTKS (Insulin Receptor Tyrosine Kinase Substrate), serves as a substrate for the insulin receptor and binds the small GTPase Rac. It plays a role in regulating the actin cytoskeleton and colocalizes with F-actin, cortactin, VASP, and vinculin. IRSp53 and IRTKS also mediate the recruitment of effector proteins Tir and EspFu, which regulate host cell actin reorganization, to bacterial attachment sites. BAIAP2L2 co-localizes with clathrin plaques but its function has not been determined. The SH3 domains of IRSp53 and IRTKS have been shown to bind the proline-rich C-terminus of EspFu. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212713 [Multi-domain]  Cd Length: 57  Bit Score: 54.25  E-value: 3.14e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVL--EQQDMWWFGE--VQGQKGWFPKSYVK 967
Cdd:cd11779      2 RVKALYPHAAGGETQLSFEEGDVITLLgpEPRDGWHYGEneRSGRRGWFPIAYTE 56
SH3_Bbc1 cd11887
Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces ...
1008-1055 3.15e-09

Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces cerevisiae Bbc1p, also called Mti1p (Myosin tail region-interacting protein), and similar proteins. Bbc1p interacts with and regulates type I myosins in yeast, Myo3p and Myo5p, which are involved in actin cytoskeletal reorganization. It also binds and inhibits Las17, a WASp family protein that functions as an activator of the Arp2/3 complex. Bbc1p contains an N-terminal SH3 domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212820 [Multi-domain]  Cd Length: 60  Bit Score: 54.66  E-value: 3.15e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGD-----KAGVFPSNYV 1055
Cdd:cd11887      5 KALYPYESDHEDDLNFDVGQLITVTEEeDADWYFGEYVDsngntKEGIFPKNFV 58
SH3_Intersectin1_5 cd11995
Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
917-968 3.26e-09

Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212928 [Multi-domain]  Cd Length: 54  Bit Score: 54.19  E-value: 3.26e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11995      2 QVIGMYDYTAQNDDELAFSKGQIINVLNKEDPdWWKGELNGQVGLFPSNYVKL 54
SH3_SH3RF_1 cd11786
First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
918-967 3.44e-09

First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212720 [Multi-domain]  Cd Length: 53  Bit Score: 54.29  E-value: 3.44e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVK 967
Cdd:cd11786      2 AKALYNYEGKEPGDLSFKKGDIILLRKRIDEnWYHGECNGKQGFFPASYVQ 52
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
331-653 3.46e-09

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 62.01  E-value: 3.46e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  331 EEPVLEDEQQQLEKKLPVTfeDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERA------EQERKERERQEQERK 404
Cdd:TIGR02169  731 EEEKLKERLEELEEDLSSL--EQEIENVKSELKELEARIEELEEDLHKLEEALNDLEARlshsriPEIQAELSKLEEEVS 808
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  405 RQLELEKQLEKQRElerqreeerrkeierreaaKRELERQrQLEWERN----RRQELLNQRNKEQEDIVVLKAKKKTLEF 480
Cdd:TIGR02169  809 RIEARLREIEQKLN-------------------RLTLEKE-YLEKEIQelqeQRIDLKEQIKSIEKEIENLNGKKEELEE 868
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  481 ELEALNDKKHQLEGKLQDIRcrltTQRQEIESTNKSRELRIAEIthlQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSL 560
Cdd:TIGR02169  869 ELEELEAALRDLESRLGDLK----KERDELEAQLRELERKIEEL---EAQIEKKRKRLSELKAKLEALEEELSEIEDPKG 941
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  561 HRDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREihnkqqlqKQKSMEAERlkqKEQERKII 640
Cdd:TIGR02169  942 EDEEIPEEELSLEDVQAELQRVEEEIRALEPVNMLAIQEYEEVLKRLDELKE--------KRAKLEEER---KAILERIE 1010
                          330
                   ....*....|...
gi 1034627469  641 ELEKQKEEAQRRA 653
Cdd:TIGR02169 1011 EYEKKKREVFMEA 1023
SH3_MPP cd11862
Src Homology 3 domain of Membrane Protein, Palmitoylated (or MAGUK p55 subfamily member) ...
1163-1206 3.66e-09

Src Homology 3 domain of Membrane Protein, Palmitoylated (or MAGUK p55 subfamily member) proteins; The MPP/p55 subfamily of MAGUK (membrane-associated guanylate kinase) proteins includes at least eight vertebrate members (MPP1-7 and CASK), four Drosophila proteins (Stardust, Varicose, CASK and Skiff), and other similar proteins; they all contain one each of the core of three domains characteristic of MAGUK proteins: PDZ, SH3, and guanylate kinase (GuK). In addition, most members except for MPP1 contain N-terminal L27 domains and some also contain a Hook (Protein 4.1 Binding) motif in between the SH3 and GuK domains. CASK has an additional calmodulin-dependent kinase (CaMK)-like domain at the N-terminus. Members of this subfamily are scaffolding proteins that play important roles in regulating and establishing cell polarity, cell adhesion, and synaptic targeting and transmission, among others. The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212796  Cd Length: 61  Bit Score: 54.12  E-value: 3.66e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1163 MYDYTAQNDDE-------LAFNKGQIINVLNKEDPDWWK----GEVNGQVGLFPS 1206
Cdd:cd11862      5 LFDYDPEEDPLipckeagLSFKKGDILQIVNQDDPNWWQarkvGDPNGRAGLIPS 59
SH3_Sorbs_1 cd11781
First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
918-968 3.93e-09

First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212715 [Multi-domain]  Cd Length: 53  Bit Score: 53.88  E-value: 3.93e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSYVKL 968
Cdd:cd11781      2 ARALYPFKAQSAKELSLKKGDIIYIRRQIDKNWYeGEHNGRVGIFPASYVEI 53
SH3_STAM1 cd11964
Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal ...
1009-1055 4.01e-09

Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal sorting complex required for transport (ESCRT-0) and is involved in sorting ubiquitinated cargo proteins from the endosome. It may also be involved in the regulation of IL2 and GM-CSF mediated signaling, and has been implicated in neural cell survival. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212897 [Multi-domain]  Cd Length: 55  Bit Score: 54.18  E-value: 4.01e-09
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11964      5 AIYDFEAAEDNELTFKAGDIItILDDSDPNWWKGETPQGTGLFPSNFV 52
PH_PLEKHG7 cd13245
Pleckstrin homology domain-containing family G member 7 pleckstrin homology (PH) domain; ...
1464-1567 4.08e-09

Pleckstrin homology domain-containing family G member 7 pleckstrin homology (PH) domain; PLEKHG7 has a RhoGEF DH/double-homology domain in tandem with a PH domain which is involved in phospholipid binding. PLEKHG7 is proposed to functions as a guanine nucleotide exchange factor (GEF) and is involved in the regulation of Rho protein signal transduction. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 270065  Cd Length: 128  Bit Score: 56.52  E-value: 4.08e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1464 LHSGKLYKAKSNK--ELYGFLFNDFLLLTQITKPLG-SSGTDKVFS---------PKSNLQYKMYKTPIFLNEVLVK--L 1529
Cdd:cd13245      3 LHEGPLTLIESGKtlDVYLFLFDDMLLITKMKKNLKkKKSSDSENSmpsleltplIKEGGSYTVYKQPIPLDRLCLHdvD 82
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1530 PTDPS--GDEPIFHISHIDR------VYTLRAESINERTAWVQKIK 1567
Cdd:cd13245     83 PNEATanGLKHAFVLVHLNRyqqvigVYTLQASSENTKQTWMSKLR 128
SH3_Abp1_fungi_C2 cd11961
Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
918-968 4.09e-09

Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212894 [Multi-domain]  Cd Length: 53  Bit Score: 54.07  E-value: 4.09e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLE-QQDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11961      2 AKALYDYDAAEDNELSFFENDKIINIEfVDDDWWLGECHGSRGLFPSNYVEL 53
SH3_PEX13_eumet cd11864
Src Homology 3 domain of eumetazoan Peroxisomal biogenesis factor 13; PEX13 is a peroxin and ...
1161-1211 4.34e-09

Src Homology 3 domain of eumetazoan Peroxisomal biogenesis factor 13; PEX13 is a peroxin and is required for protein import into the peroxisomal matrix and membrane. It is an integral membrane protein that is essential for the localization of PEX14 and the import of proteins containing the peroxisome matrix targeting signals, PTS1 and PTS2. Mutations of the PEX13 gene in humans lead to a wide range of peroxisome biogenesis disorders (PBDs), the most severe of which is known as Zellweger syndrome (ZS), a severe multisystem disorder characterized by hypotonia, psychomotor retardation, and neuronal migration defects. PEX13 contains two transmembrane regions and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212798  Cd Length: 58  Bit Score: 54.17  E-value: 4.34e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKE----DPDWWKGEVNGQ-VGLFPSNYVKL 1211
Cdd:cd11864      3 RAEYDFVAESEDELSFRAGDKLRLAPKElqprVRGWLLATVDGQkIGLVPANYVKI 58
SH3_CD2AP-like_3 cd11875
Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This ...
1009-1057 4.40e-09

Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212808 [Multi-domain]  Cd Length: 55  Bit Score: 53.89  E-value: 4.40e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKDGD---WWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11875      4 VLFDYEAENEDELTLREGDIVTILSKDCEdkgWWKGELNGKRGVFPDNFVEP 55
EnvC COG4942
Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, ...
436-653 4.44e-09

Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 443969 [Multi-domain]  Cd Length: 377  Bit Score: 60.55  E-value: 4.44e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  436 AAKRELER-QRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIestn 514
Cdd:COG4942     31 QLQQEIAElEKELAALKKEEKALLKQLAALERRIAALARRIRALEQELAALEAELAELEKEIAELRAELEAQKEEL---- 106
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  515 kSRELRIAEITHLQQQLQESQQMLG------RLIPEKQILNDQLKQVQQNSLHRDSLVTLKRALEAKelaRQHLRDQLDE 588
Cdd:COG4942    107 -AELLRALYRLGRQPPLALLLSPEDfldavrRLQYLKYLAPARREQAEELRADLAELAALRAELEAE---RAELEALLAE 182
                          170       180       190       200       210       220
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  589 VEKETRSKLQEIDIFNNQLKELreihNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRA 653
Cdd:COG4942    183 LEEERAALEALKAERQKLLARL----EKELAELAAELAELQQEAEELEALIARLEAEAAAAAERT 243
SH3_DNMBP_C2_like cd11800
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
1159-1208 4.48e-09

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. Also included in this subfamily is the second C-terminal SH3 domain of Rho guanine nucleotide exchange factor 37 (ARHGEF37), whose function is still unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212734 [Multi-domain]  Cd Length: 57  Bit Score: 53.91  E-value: 4.48e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKED----PDWWKGEVNGQVGLFPSNY 1208
Cdd:cd11800      1 YYYALYTFEARSPGELSVTEGQVVTVLEKHDlkgnPEWWLVEDRGKQGYVPSNY 54
SH3_Sorbs_3 cd11780
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) ...
1163-1210 4.55e-09

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the third SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212714 [Multi-domain]  Cd Length: 55  Bit Score: 53.84  E-value: 4.55e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKG--EVNGQVGLFPSNYVK 1210
Cdd:cd11780      5 LYSYTPQNEDELELREGDIVYVMEKCDDGWFVGtsERTGLFGTFPGNYVA 54
SH3_p67phox-like_C cd11870
C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; ...
1159-1210 5.15e-09

C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; This subfamily is composed of p67phox, NADPH oxidase activator 1 (Noxa1), and similar proteins. p67phox, also called Neutrophil cytosol factor 2 (NCF-2), and Noxa1 are homologs and are the cytosolic subunits of the phagocytic (Nox2) and nonphagocytic (Nox1) NADPH oxidase complexes, respectively. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox and Noxa1 play regulatory roles. p67phox contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. Noxa1 has a similar domain architecture except it is lacking the N-terminal SH3 domain. The TPR domain of both binds activated GTP-bound Rac, while the C-terminal SH3 domain of p67phox and Noxa1 binds the polyproline motif found at the C-terminus of p47phox and Noxo1, respectively. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212803 [Multi-domain]  Cd Length: 53  Bit Score: 53.69  E-value: 5.15e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11870      1 QVVALHRYEAQGPEDLGFREGDTIDVLSEVNEAWLEGHSDGRVGIFPKCFVV 52
PRK03918 PRK03918
DNA double-strand break repair ATPase Rad50;
334-685 5.21e-09

DNA double-strand break repair ATPase Rad50;


Pssm-ID: 235175 [Multi-domain]  Cd Length: 880  Bit Score: 61.23  E-value: 5.21e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  334 VLEDEQQQLEKKLpvtfEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLEraeQERKERerqeqeRKRQLELEKQL 413
Cdd:PRK03918   369 AKKEELERLKKRL----TGLTPEKLEKELEELEKAKEEIEEEISKITARIGELK---KEIKEL------KKAIEELKKAK 435
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  414 EKqrelerqreeerrkeierREAAKRELERQrqlewernRRQELLNQRNKEQEDIvvlKAKKKTLEFELEALNDKKHQLE 493
Cdd:PRK03918   436 GK------------------CPVCGRELTEE--------HRKELLEEYTAELKRI---EKELKEIEEKERKLRKELRELE 486
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  494 GKLQDIRcRLTTQRQ---EIEST-NKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQnslhrdslvtLK 569
Cdd:PRK03918   487 KVLKKES-ELIKLKElaeQLKELeEKLKKYNLEELEKKAEEYEKLKEKLIKLKGEIKSLKKELEKLEE----------LK 555
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  570 RALEAKELARQHLRDQLDEVEKETRSK-LQEIDIFNNQLKELREIHNK--------QQLQ-KQKSMEAERLKQKEQERKI 639
Cdd:PRK03918   556 KKLAELEKKLDELEEELAELLKELEELgFESVEELEERLKELEPFYNEylelkdaeKELErEEKELKKLEEELDKAFEEL 635
                          330       340       350       360
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469  640 IELEKQKEEAQRRAQErdkqwLEHVQQEDEHQRPRKLHEEekLKRE 685
Cdd:PRK03918   636 AETEKRLEELRKELEE-----LEKKYSEEEYEELREEYLE--LSRE 674
SH3_Abp1_fungi_C2 cd11961
Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
1009-1057 5.43e-09

Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212894 [Multi-domain]  Cd Length: 53  Bit Score: 53.68  E-value: 5.43e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11961      4 ALYDYDAAEDNELSFFENDKIInIEFVDDDWWLGECHGSRGLFPSNYVEL 53
SH3_D21-like cd12142
Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; ...
1080-1133 5.62e-09

Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; N-terminal SH3 domain of the uncharacterized protein SH3 domain-containing protein 21, and similar uncharacterized domains, it belongs to the CD2AP-like_3 subfamily of proteins. The CD2AP-like_3 subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213018 [Multi-domain]  Cd Length: 55  Bit Score: 53.62  E-value: 5.62e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKNPG--GWWEGELQARgkkrqIGWFPANYV 1133
Cdd:cd12142      3 RVLFDYNPVAPDELALKKGDVIEVISKETEdeGWWEGELNGR-----RGFFPDNFV 53
SH3_Intersectin1_2 cd11989
Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1159-1211 5.95e-09

Second Src homology 3 domain (or SH3B) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212922 [Multi-domain]  Cd Length: 52  Bit Score: 53.57  E-value: 5.95e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPdWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11989      1 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 52
SH3_Yes cd12007
Src homology 3 domain of Yes Protein Tyrosine Kinase; Yes (or c-Yes) is a member of the Src ...
1161-1209 6.66e-09

Src homology 3 domain of Yes Protein Tyrosine Kinase; Yes (or c-Yes) is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. c-Yes kinase is the cellular homolog of the oncogenic protein (v-Yes) encoded by the Yamaguchi 73 and Esh sarcoma viruses. It displays functional overlap with other Src subfamily members, particularly Src. It also shows some unique functions such as binding to occludins, transmembrane proteins that regulate extracellular interactions in tight junctions. Yes also associates with a number of proteins in different cell types that Src does not interact with, like JAK2 and gp130 in pre-adipocytes, and Pyk2 in treated pulmonary vein endothelial cells. Although the biological function of Yes remains unclear, it appears to have a role in regulating cell-cell interactions and vesicle trafficking in polarized cells. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212940 [Multi-domain]  Cd Length: 58  Bit Score: 53.50  E-value: 6.66e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGE--VNGQVGLFPSNYV 1209
Cdd:cd12007      4 VALYDYEARTTEDLSFKKGERFQIINNTEGDWWEARsiATGKNGYIPSNYV 54
DUF4659 pfam15558
Domain of unknown function (DUF4659); This family of proteins is found in eukaryotes. Proteins ...
374-686 6.85e-09

Domain of unknown function (DUF4659); This family of proteins is found in eukaryotes. Proteins in this family are typically between 427 and 674 amino acids in length. There are two completely conserved residues (D and I) that may be functionally important.


Pssm-ID: 464768 [Multi-domain]  Cd Length: 374  Bit Score: 60.05  E-value: 6.85e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  374 EQQRKEQERLAQLERAEQERKERERQEQ-ERKRQLELEKQLE------KQRELERQREEERRKEIERREAAKRELERQRQ 446
Cdd:pfam15558   20 EQRMRELQQQAALAWEELRRRDQKRQETlERERRLLLQQSQEqwqaekEQRKARLGREERRRADRREKQVIEKESRWREQ 99
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  447 LEWERNRRQELLNQRNKEQEdivvlkAKKKTLEFEL----EALNDKKHQLEGKLQDI--RCRLTTQRQEIESTNKSRELR 520
Cdd:pfam15558  100 AEDQENQRQEKLERARQEAE------QRKQCQEQRLkekeEELQALREQNSLQLQERleEACHKRQLKEREEQKKVQENN 173
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  521 IAEithlqqqlqesqqmlgrlipekqILNDQLKQVQQNSLHRDSLVTLKRALEAKelarqHLRDQldevekETRSKLQEI 600
Cdd:pfam15558  174 LSE-----------------------LLNHQARKVLVDCQAKAEELLRRLSLEQS-----LQRSQ------ENYEQLVEE 219
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  601 difnnQLKELREIHNKQQLQKQKSME-AERLKQKEQERK--IIELEKQK-EEAQRRAQERDKQWLEHVQQ-----EDEHQ 671
Cdd:pfam15558  220 -----RHRELREKAQKEEEQFQRAKWrAEEKEEERQEHKeaLAELADRKiQQARQVAHKTVQDKAQRARElnlerEKNHH 294
                          330
                   ....*....|....*.
gi 1034627469  672 RPR-KLHEEEKLKREE 686
Cdd:pfam15558  295 ILKlKVEKEEKCHREG 310
SH3_9 pfam14604
Variant SH3 domain;
1009-1056 6.90e-09

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 53.00  E-value: 6.90e-09
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITVIEEsEDGWWEGINTGRTGLVPANYVE 49
SH3_CD2AP_3 cd12056
Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ...
1009-1055 7.08e-09

Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CD2AP. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212989 [Multi-domain]  Cd Length: 57  Bit Score: 53.29  E-value: 7.08e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKD-GD--WWTGTVGDKAGVFPSNYV 1055
Cdd:cd12056      6 ALFHYEGTNEDELDFKEGEIILIISKDtGEpgWWKGELNGKEGVFPDNFV 55
SH3_Abi cd11826
Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor ...
741-802 7.19e-09

Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. They localize to sites of actin polymerization in epithelial adherens junction and immune synapses, as well as to the leading edge of lamellipodia. Vertebrates contain two Abi proteins, Abi1 and Abi2. Abi1 displays a wide expression pattern while Abi2 is highly expressed in the eye and brain. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212760 [Multi-domain]  Cd Length: 52  Bit Score: 53.09  E-value: 7.19e-09
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  741 KVVyyrALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11826      1 KVV---ALYDYTADKDDELSFQEGDIIYV-------TKKNDDGWYEGVLNGVTGLFPGNYVE 52
SH3_Cortactin_like cd11819
Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, ...
1008-1057 7.54e-09

Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, Abp1 (actin-binding protein 1), hematopoietic lineage cell-specific protein 1 (HS1), and similar proteins. These proteins are involved in regulating actin dynamics through direct or indirect interaction with the Arp2/3 complex, which is required to initiate actin polymerization. They all contain at least one C-terminal SH3 domain. Cortactin and HS1 bind Arp2/3 and actin through an N-terminal region that contains an acidic domain and several copies of a repeat domain found in cortactin and HS1. Abp1 binds actin via an N-terminal actin-depolymerizing factor (ADF) homology domain. Yeast Abp1 binds Arp2/3 directly through two acidic domains. Mammalian Abp1 does not directly interact with Arp2/3; instead, it regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. The C-terminal region of these proteins acts as an adaptor or scaffold that can connect membrane trafficking and signaling proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212753 [Multi-domain]  Cd Length: 54  Bit Score: 53.09  E-value: 7.54e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGD-KAGVFPSNYVRL 1057
Cdd:cd11819      3 KALYDYQAAEDNEISFVEGDIITqIEQIDEGWWLGVNAKgQKGLFPANYVEL 54
SH3_ephexin1_like cd11793
Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange ...
1079-1133 7.54e-09

Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange factors; Members of this family contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and C-terminal SH3 domains. They include the Rho guanine nucleotide exchange factors ARHGEF5, ARHGEF16, ARHGEF19, ARHGEF26, ARHGEF27 (also called ephexin-1), and similar proteins, and are also called ephexins because they interact directly with ephrin A receptors. GEFs interact with Rho GTPases via their DH domains to catalyze nucleotide exchange by stabilizing the nucleotide-free GTPase intermediate. They play important roles in neuronal development. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212727 [Multi-domain]  Cd Length: 55  Bit Score: 53.11  E-value: 7.54e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKrqiGWFPANYV 1133
Cdd:cd11793      2 VQCVHAYTAQQPDELTLEEGDVVNVLRKMPDGWYEGERLRDGER---GWFPSSYT 53
SH3_Endophilin_A cd11803
Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, ...
917-969 7.57e-09

Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They are classified into two types, A and B. Vertebrates contain three endophilin-A isoforms (A1, A2, and A3). Endophilin-A proteins are enriched in the brain and play multiple roles in receptor-mediated endocytosis. They tubulate membranes and regulate calcium influx into neurons to trigger the activation of the endocytic machinery. They are also involved in the sorting of plasma membrane proteins, actin filament assembly, and the uncoating of clathrin-coated vesicles for fusion with endosomes. Endophilins contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212737 [Multi-domain]  Cd Length: 55  Bit Score: 53.42  E-value: 7.57e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSYVKLI 969
Cdd:cd11803      2 CCRALYDFEPENEGELGFKEGDIITLTNQIDENWYeGMVNGQSGFFPVNYVEVL 55
SH3_Intersectin_1 cd11836
First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor ...
919-966 7.73e-09

First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212770 [Multi-domain]  Cd Length: 55  Bit Score: 53.13  E-value: 7.73e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQDM---WWFGEVQGQKGWFPKSYV 966
Cdd:cd11836      3 RALYAFEARNPDEISFQPGDIIQVDESQVAepgWLAGELKGKTGWFPANYV 53
PTZ00121 PTZ00121
MAEBL; Provisional
336-686 7.98e-09

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 60.93  E-value: 7.98e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  336 EDEQQQLEKKLPVTFEDKKRENFErgnlELEKRRQALLEQQRKEQErlaQLERAEQERKERERQEQERKRQLELEKQLEK 415
Cdd:PTZ00121  1078 DFDFDAKEDNRADEATEEAFGKAE----EAKKTETGKAEEARKAEE---AKKKAEDARKAEEARKAEDARKAEEARKAED 1150
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  416 qrelerqreeERRKEIERREAAKRELERQRQLE----WERNRRQELLNQRN--KEQEDIVVLKAKKKTlEFELEALNDKK 489
Cdd:PTZ00121  1151 ----------AKRVEIARKAEDARKAEEARKAEdakkAEAARKAEEVRKAEelRKAEDARKAEAARKA-EEERKAEEARK 1219
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  490 HQLEGKLQDIRcRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIP--EKQILNDQLKQVQQ----NSLHRD 563
Cdd:PTZ00121  1220 AEDAKKAEAVK-KAEEAKKDAEEAKKAEEERNNEEIRKFEEARMAHFARRQAAIkaEEARKADELKKAEEkkkaDEAKKA 1298
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  564 SLVtlKRALEAKELARQHLR-DQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIEL 642
Cdd:PTZ00121  1299 EEK--KKADEAKKKAEEAKKaDEAKKKAEEAKKKADAAKKKAEEAKKAAEAAKAEAEAAADEAEAAEEKAEAAEKKKEEA 1376
                          330       340       350       360
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469  643 EKQKEEAQRRAQERDKQwlEHVQQEDEHQRPR----KLHEEEKLKREE 686
Cdd:PTZ00121  1377 KKKADAAKKKAEEKKKA--DEAKKKAEEDKKKadelKKAAAAKKKADE 1422
MAP7 pfam05672
MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is ...
366-495 8.02e-09

MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is presumably controlled by tissue-specific microtubule-associated proteins (MAPs). The 115-kDa epithelial MAP (E-MAP-115/MAP7) has been identified as a microtubule-stabilising protein predominantly expressed in cell lines of epithelial origin. The binding of this microtubule associated protein is nucleotide independent.


Pssm-ID: 461709 [Multi-domain]  Cd Length: 153  Bit Score: 56.20  E-value: 8.02e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  366 EKRRQALLEQQRKEQERLAQLERAEQERKE-RERQEQERKRQLELEKQLEKQRELERQREEERrkeierreaAKRELERQ 444
Cdd:pfam05672   18 EKRRQAREQREREEQERLEKEEEERLRKEElRRRAEEERARREEEARRLEEERRREEEERQRK---------AEEEAEER 88
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  445 RQLEWERNRRQEllnQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGK 495
Cdd:pfam05672   89 EQREQEEQERLQ---KQKEEAEAKAREEAERQRQEREKIMQQEEQERLERK 136
SH3_Noxa1_C cd12047
C-terminal Src Homology 3 domain of NADPH oxidase activator 1; Noxa1 is a homolog of p67phox ...
1159-1209 8.77e-09

C-terminal Src Homology 3 domain of NADPH oxidase activator 1; Noxa1 is a homolog of p67phox and is a cytosolic subunit of the nonphagocytic NADPH oxidase complex Nox1, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Noxa1 is co-expressed with Nox1 in colon, stomach, uterus, prostate, and vascular smooth muscle cells, consistent with its regulatory role. It does not interact with p40phox, unlike p67phox, making Nox1 activity independent of p40phox, unlike Nox2. Noxa1 contains TPR, PB1, and C-terminal SH3 domains, but lacks the central SH3 domain that is present in p67phox. The TPR domain binds activated GTP-bound Rac. The C-terminal SH3 domain binds the polyproline motif found at the C-terminus of Noxo1, a homolog of p47phox. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212980  Cd Length: 53  Bit Score: 52.90  E-value: 8.77e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd12047      1 RMVAQHDYSAQGPEDLEFSQGDTIDILSEVNQEWLEGHCDGRIGIFPKCFA 51
SH3_Nebulin_family_C cd11789
C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins ...
1007-1057 8.94e-09

C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins contain multiple nebulin repeats, and may contain an N-terminal LIM domain and/or a C-terminal SH3 domain. They have molecular weights ranging from 34 to 900 kD, depending on the number of nebulin repeats, and they all bind actin. They are involved in the regulation of actin filament architecture and function as stabilizers and scaffolds for cytoskeletal structures with which they associate, such as long actin filaments or focal adhesions. Nebulin family proteins that contain a C-terminal SH3 domain include the giant filamentous protein nebulin, nebulette, Lasp1, and Lasp2. Lasp2, also called LIM-nebulette, is an alternatively spliced variant of nebulette. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212723 [Multi-domain]  Cd Length: 55  Bit Score: 53.09  E-value: 8.94e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTV---GdKAGVFPSNYVRL 1057
Cdd:cd11789      2 YRAMYDYAAADDDEVSFQEGDVIInVEIIDDGWMEGTVqrtG-QSGMLPANYVEL 55
SH3_ASAP1 cd11965
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
1159-1211 9.88e-09

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing protein 1; ASAP1 is also called DDEF1 (Development and Differentiation Enhancing Factor 1), AMAP1, centaurin beta-4, or PAG2. an Arf GTPase activating protein (GAP) with activity towards Arf1 and Arf5 but not Arf6. However, it has been shown to bind GTP-Arf6 stably without GAP activity. It has been implicated in cell growth, migration, and survival, as well as in tumor invasion and malignancy. It binds paxillin and cortactin, two components of invadopodia which are essential for tumor invasiveness. It also binds focal adhesion kinase (FAK) and the SH2/SH3 adaptor CrkL. ASAP1 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212898 [Multi-domain]  Cd Length: 57  Bit Score: 53.09  E-value: 9.88e-09
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQ---VGLFPSNYVKL 1211
Cdd:cd11965      1 RVKTIYDCQADNDDELTFVEGEVIIVTGEEDQEWWIGHIEGQperKGVFPVSFVHI 56
SH3_SH3RF2_1 cd11929
First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
1163-1211 1.02e-08

First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212862  Cd Length: 54  Bit Score: 53.02  E-value: 1.02e-08
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11929      6 LCNYRGHNPGDLKFNKGDVILLRRQLDENWYLGEINGVSGIFPASSVEV 54
SH3_1 pfam00018
SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal ...
1008-1052 1.03e-08

SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 394975 [Multi-domain]  Cd Length: 47  Bit Score: 52.59  E-value: 1.03e-08
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVT-KKDGDWWTGTV-GDKAGVFPS 1052
Cdd:pfam00018    1 VALYDYTAQEPDELSFKKGDIIIVLeKSEDGWWKGRNkGGKEGLIPS 47
SH3_ARHGEF9_like cd11828
Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this ...
918-968 1.04e-08

Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this family contain a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. They include the Rho guanine nucleotide exchange factors ARHGEF9, ASEF (also called ARHGEF4), ASEF2, and similar proteins. GEFs activate small GTPases by exchanging bound GDP for free GTP. ARHGEF9 specifically activates Cdc42, while both ASEF and ASEF2 can activate Rac1 and Cdc42. ARHGEF9 is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. ASEF plays a role in angiogenesis and cell migration. ASEF2 is important in cell migration and adhesion dynamics. ASEF exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli), leading to the activation of Rac1 or Cdc42. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212762 [Multi-domain]  Cd Length: 53  Bit Score: 52.77  E-value: 1.04e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11828      2 AEALWDHVTMDPEELGFKAGDVIEVLDMSDKdWWWGSIRDEEGWFPASFVRL 53
SH3_DNMBP_N3 cd11796
Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or ...
1165-1209 1.06e-08

Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin and key regulatory proteins of the actin cytoskeleton. It plays an important role in regulating cell junction configuration. The four N-terminal SH3 domains of DNMBP binds the GTPase dynamin, which plays an important role in the fission of endocytic vesicles. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212730  Cd Length: 51  Bit Score: 52.74  E-value: 1.06e-08
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*
gi 1034627469 1165 DYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11796      7 DLSAQLDEELDLREGDVVTITGILDKGWFRGELNGRRGIFPEGFV 51
SH3_Intersectin_5 cd11840
Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor ...
746-802 1.12e-08

Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212774 [Multi-domain]  Cd Length: 53  Bit Score: 52.80  E-value: 1.12e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwvdesqtGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11840      3 IALFPYTAQNEDELSFQKGDIINVLSK-------DDPDWWRGELNGQTGLFPSNYVE 52
SH3_Stac3_1 cd11986
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 ...
1007-1055 1.17e-08

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 (Stac3); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212919 [Multi-domain]  Cd Length: 53  Bit Score: 52.60  E-value: 1.17e-08
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gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTK-KDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11986      2 FVALYRFKALEKDDLDFHPGERITVIDdSNEEWWRGKIGEKTGYFPMNFI 51
SH3_MLK4 cd12058
Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), ...
745-800 1.18e-08

Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. The specific function of MLK4 is yet to be determined. Mutations in the kinase domain of MLK4 have been detected in colorectal cancers. MLK4 contains an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212991 [Multi-domain]  Cd Length: 58  Bit Score: 53.02  E-value: 1.18e-08
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gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVKGEwvDESQTGEPGWLGGELKGKTGWFPANY 800
Cdd:cd12058      2 WTALYDYEASGEDELSLRRGDVVEVLSQ--DAAVSGDDGWWAGKIRHRLGIFPANY 55
SH3_MLK4 cd12058
Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), ...
1009-1055 1.27e-08

Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. The specific function of MLK4 is yet to be determined. Mutations in the kinase domain of MLK4 have been detected in colorectal cancers. MLK4 contains an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212991 [Multi-domain]  Cd Length: 58  Bit Score: 52.64  E-value: 1.27e-08
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKD----GD--WWTGTVGDKAGVFPSNYV 1055
Cdd:cd12058      4 ALYDYEASGEDELSLRRGDVVEVLSQDaavsGDdgWWAGKIRHRLGIFPANYV 56
SH3_Nebulin_family_C cd11789
C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins ...
745-803 1.34e-08

C-terminal Src Homology 3 domain of the Nebulin family of proteins; Nebulin family proteins contain multiple nebulin repeats, and may contain an N-terminal LIM domain and/or a C-terminal SH3 domain. They have molecular weights ranging from 34 to 900 kD, depending on the number of nebulin repeats, and they all bind actin. They are involved in the regulation of actin filament architecture and function as stabilizers and scaffolds for cytoskeletal structures with which they associate, such as long actin filaments or focal adhesions. Nebulin family proteins that contain a C-terminal SH3 domain include the giant filamentous protein nebulin, nebulette, Lasp1, and Lasp2. Lasp2, also called LIM-nebulette, is an alternatively spliced variant of nebulette. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212723 [Multi-domain]  Cd Length: 55  Bit Score: 52.70  E-value: 1.34e-08
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gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVmVKGEWVDEsqtgepGWLGGELK--GKTGWFPANYAEK 803
Cdd:cd11789      2 YRAMYDYAAADDDEVSFQEGDVI-INVEIIDD------GWMEGTVQrtGQSGMLPANYVEL 55
SH3_PLCgamma cd11825
Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of ...
918-967 1.34e-08

Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG) in response to various receptors. Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma catalyzes this reaction in tyrosine kinase-dependent signaling pathways. It is activated and recruited to its substrate at the membrane. Vertebrates contain two forms of PLCgamma, PLCgamma1, which is widely expressed, and PLCgamma2, which is primarily found in haematopoietic cells. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212759 [Multi-domain]  Cd Length: 54  Bit Score: 52.33  E-value: 1.34e-08
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gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQGQK-GWFPKSYVK 967
Cdd:cd11825      2 VKALYDYRAQRPDELSFCKHAIITNVEKEDgGWWRGDYGGKKqKWFPANYVE 53
SH3_FCHSD_2 cd11762
Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
1009-1052 1.34e-08

Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212696 [Multi-domain]  Cd Length: 57  Bit Score: 52.78  E-value: 1.34e-08
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKDGD-----WWTGTVGDKAGVFPS 1052
Cdd:cd11762      4 ALYDYEAQSDEELSFPEGAIIRILRKDDNgvddgWWEGEFNGRVGVFPS 52
SH3_UBASH3 cd11791
Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing proteins, also called ...
745-803 1.37e-08

Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing proteins, also called TULA (T cell Ubiquitin LigAnd) family of proteins; UBASH3 or TULA proteins are also referred to as Suppressor of T cell receptor Signaling (STS) proteins. They contain an N-terminal UBA domain, a central SH3 domain, and a C-terminal histidine phosphatase domain. They bind c-Cbl through the SH3 domain and to ubiquitin via UBA. In some vertebrates, there are two TULA family proteins, called UBASH3A (also called TULA or STS-2) and UBASH3B (also called TULA-2 or STS-1), which show partly overlapping as well as distinct functions. UBASH3B is widely expressed while UBASH3A is only found in lymphoid cells. UBASH3A facilitates apoptosis induced in T cells through its interaction with the apoptosis-inducing factor AIF. UBASH3B is an active phosphatase while UBASH3A is not. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212725 [Multi-domain]  Cd Length: 59  Bit Score: 52.69  E-value: 1.37e-08
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gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVKGEWVDESQTgepGWLGG--ELKGKTGWFPANYAEK 803
Cdd:cd11791      2 LRVLYPYTPQEEDELELVPGDYIYVSPEELDSSSD---GWVEGtsWLTGCSGLLPENYTEK 59
SH3_Endophilin_A cd11803
Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, ...
745-802 1.39e-08

Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They are classified into two types, A and B. Vertebrates contain three endophilin-A isoforms (A1, A2, and A3). Endophilin-A proteins are enriched in the brain and play multiple roles in receptor-mediated endocytosis. They tubulate membranes and regulate calcium influx into neurons to trigger the activation of the endocytic machinery. They are also involved in the sorting of plasma membrane proteins, actin filament assembly, and the uncoating of clathrin-coated vesicles for fusion with endosomes. Endophilins contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212737 [Multi-domain]  Cd Length: 55  Bit Score: 52.65  E-value: 1.39e-08
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gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVKGEwVDESqtgepgWLGGELKGKTGWFPANYAE 802
Cdd:cd11803      3 CRALYDFEPENEGELGFKEGDIITLTNQ-IDEN------WYEGMVNGQSGFFPVNYVE 53
SH3_Sho1p cd11855
Src homology 3 domain of High osmolarity signaling protein Sho1p; Sho1p (or Sho1), also called ...
1162-1211 1.40e-08

Src homology 3 domain of High osmolarity signaling protein Sho1p; Sho1p (or Sho1), also called SSU81 (Suppressor of SUA8-1 mutation), is a yeast membrane protein that regulates adaptation to high salt conditions by activating the HOG (high-osmolarity glycerol) pathway. High salt concentrations lead to the localization to the membrane of the MAPKK Pbs2, which is then activated by the MAPKK Ste11 and in turn, activates the MAPK Hog1. Pbs2 is localized to the membrane though the interaction of its PxxP motif with the SH3 domain of Sho1p. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212789 [Multi-domain]  Cd Length: 55  Bit Score: 52.42  E-value: 1.40e-08
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gi 1034627469 1162 GMYDYTAQNDD--ELAFNKGQIINVLNKEDpDWWKGEV-NGQVGLFPSNYVKL 1211
Cdd:cd11855      4 ALYPYDASPDDpnELSFEKGEILEVSDTSG-KWWQARKsNGETGICPSNYLQL 55
SH3_Intersectin2_5 cd11996
Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
917-968 1.46e-08

Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212929 [Multi-domain]  Cd Length: 54  Bit Score: 52.29  E-value: 1.46e-08
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gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11996      2 QVIAMYDYTANNEDELSFSKGQLINVLNKDDPdWWQGEINGVTGLFPSNYVKM 54
SH3_SKAP1-like cd11866
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1 and similar proteins; This ...
1162-1209 1.48e-08

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1 and similar proteins; This subfamily is composed of SKAP1, SKAP2, and similar proteins. SKAP1 and SKAP2 are immune cell-specific adaptor proteins that play roles in T- and B-cell adhesion, respectively, and are thus important in the migration of T- and B-cells to sites of inflammation and for movement during T-cell conjugation with antigen-presenting cells. Both SKAP1 and SKAP2 bind to ADAP (adhesion and degranulation-promoting adaptor protein), among many other binding partners. They contain a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. The SH3 domain of SKAP1 is necessary for its ability to regulate T-cell conjugation with antigen-presenting cells and the formation of LFA-1 clusters. SKAP1 binds primarily to a proline-rich region of ADAP through its SH3 domain; its degradation is regulated by ADAP. A secondary interaction occurs via the ADAP SH3 domain and the RKxxYxxY motif in SKAP1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212800  Cd Length: 53  Bit Score: 52.43  E-value: 1.48e-08
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gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKE--DPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11866      4 GLWDCSGNEPDELSFKRGDLIYIISKEydSFGWWVGELNGKVGLVPKDYL 53
SH3_SH3RF1_1 cd11927
First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ...
1009-1057 1.52e-08

First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212860  Cd Length: 54  Bit Score: 52.26  E-value: 1.52e-08
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11927      5 ALYNYEGKEPGDLKFSKGDIIILRRQvDENWYHGEVNGIHGFFPTNFVQI 54
SH3_Cortactin cd11959
Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src ...
918-968 1.54e-08

Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src kinase. It is an actin regulatory protein that binds to the Arp2/3 complex and stabilizes branched actin filaments. It is involved in cellular processes that affect cell motility, adhesion, migration, endocytosis, and invasion. It is expressed ubiquitously except in hematopoietic cells, where the homolog hematopoietic lineage cell-specific 1 (HS1) is expressed instead. Cortactin contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region interacts with the Arp2/3 complex and F-actin, and is crucial in regulating branched actin assembly. Cortactin also serves as a scaffold and provides a bridge to the actin cytoskeleton for membrane trafficking and signaling proteins that bind to its SH3 domain. Binding partners for the SH3 domain of cortactin include dynamin2, N-WASp, MIM, FGD1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212892 [Multi-domain]  Cd Length: 53  Bit Score: 52.42  E-value: 1.54e-08
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gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11959      2 AVALYDYQAADDDEISFDPDDIITNIEMIDEgWWRGVCRGKYGLFPANYVEL 53
SH3_PACSIN1-2 cd11998
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) ...
1159-1210 1.60e-08

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) and PACSIN 2; PACSIN 1 or Syndapin I (Synaptic dynamin-associated protein I) is expressed specifically in the brain and is localized in neurites and synaptic boutons. It binds the brain-specific proteins dynamin I, synaptojanin, synapsin I, and neural Wiskott-Aldrich syndrome protein (nWASP), and functions as a link between the cytoskeletal machinery and synaptic vesicle endocytosis. PACSIN 1 interacts with huntingtin and may be implicated in the neuropathology of Huntington's disease. PACSIN 2 or Syndapin II is expressed ubiquitously and is involved in the regulation of tubulin polymerization. It associates with Golgi membranes and forms a complex with dynamin II which is crucial in promoting vesicle formation from the trans-Golgi network. PACSINs act as regulators of cytoskeletal and membrane dynamics. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212931 [Multi-domain]  Cd Length: 56  Bit Score: 52.26  E-value: 1.60e-08
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gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPD-WWKGEV-NGQVGLFPSNYVK 1210
Cdd:cd11998      2 RVRALYDYDGQEQDELSFKAGDELTKLEDEDEQgWCKGRLdSGQVGLYPANYVE 55
SH3_STAM2 cd11963
Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST ...
1009-1055 1.63e-08

Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST (Epidermal growth factor receptor-associated protein with SH3 and TAM domain) or Hbp (Hrs binding protein), is part of the endosomal sorting complex required for transport (ESCRT-0). It plays a role in sorting mono-ubiquinated endosomal cargo for trafficking to the lysosome for degradation. It is also involved in the regulation of exocytosis. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212896 [Multi-domain]  Cd Length: 57  Bit Score: 52.33  E-value: 1.63e-08
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILV-TKKDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11963      6 ALYDFEAVEDNELTFKHGEIIIVlDDSDANWWKGENHRGVGLFPSNFV 53
C2_cPLA2 cd04036
C2 domain present in cytosolic PhosphoLipase A2 (cPLA2); A single copy of the C2 domain is ...
1616-1717 1.63e-08

C2 domain present in cytosolic PhosphoLipase A2 (cPLA2); A single copy of the C2 domain is present in cPLA2 which releases arachidonic acid from membranes initiating the biosynthesis of potent inflammatory mediators such as prostaglandins, leukotrienes, and platelet-activating factor. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members of this cd have a type-II topology.


Pssm-ID: 176001 [Multi-domain]  Cd Length: 119  Bit Score: 54.19  E-value: 1.63e-08
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gi 1034627469 1616 KSNPYCEV---TMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFsPDDFLGRTEIRVADIKKDQgsk 1692
Cdd:cd04036     20 TPDCYVELwlpTASDEKKRTKTIKNSINPVWNETFEFRIQSQVKNVLELTVMDEDYV-MDDHLGTVLFDVSKLKLGE--- 95
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gi 1034627469 1693 gPVTKCLLLHEVPTGEIVVRLDLQL 1717
Cdd:cd04036     96 -KVRVTFSLNPQGKEELEVEFLLEL 119
SH3_STAM cd11820
Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as ...
1009-1055 1.69e-08

Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. There are two vertebrate STAMs, STAM1 and STAM2, which may be functionally redundant; vertebrate STAMs contain ITAM motifs. They are part of the endosomal sorting complex required for transport (ESCRT-0). STAM2 deficiency in mice did not cause any obvious abnormality, while STAM1 deficiency resulted in growth retardation. Loss of both STAM1 and STAM2 in mice proved lethal, indicating that STAMs are important for embryonic development. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212754 [Multi-domain]  Cd Length: 54  Bit Score: 52.08  E-value: 1.69e-08
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTK-KDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11820      5 ALYDFEAAEDNELTFKAGEIITVLDdSDPNWWKGSNHRGEGLFPANFV 52
SH3_RIM-BP_2 cd12012
Second Src homology 3 domain of Rab3-interacting molecules (RIMs) binding proteins; RIMs ...
1161-1210 1.73e-08

Second Src homology 3 domain of Rab3-interacting molecules (RIMs) binding proteins; RIMs binding proteins (RBPs, RIM-BPs) associate with calcium channels present in photoreceptors, neurons, and hair cells; they interact simultaneously with specific calcium channel subunits, and active zone proteins, RIM1 and RIM2. RIMs are part of the matrix at the presynaptic active zone and are associated with synaptic vesicles through their interaction with the small GTPase Rab3. RIM-BPs play a role in regulating synaptic transmission by serving as adaptors and linking calcium channels with the synaptic vesicle release machinery. RIM-BPs contain three SH3 domains and two to three fibronectin III repeats. Invertebrates contain one, while vertebrates contain at least two RIM-BPs, RIM-BP1 and RIM-BP2. RIM-BP1 is also called peripheral-type benzodiazapine receptor associated protein 1 (PRAX-1). Mammals contain a third protein, RIM-BP3. RIM-BP1 and RIM-BP2 are predominantly expressed in the brain where they display overlapping but distinct expression patterns, while RIM-BP3 is almost exclusively expressed in the testis and is essential in spermiogenesis. The SH3 domains of RIM-BPs bind to the PxxP motifs of RIM1, RIM2, and L-type (alpha1D) and N-type (alpha1B) calcium channel subunits. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212945  Cd Length: 62  Bit Score: 52.29  E-value: 1.73e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469 1161 IGMYDYTAQ----NDD----ELAFNKGQIINVLNKEDPD-WWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12012      3 VALFDYDPLtmspNPDaaeeELPFKEGQLIKVYGDKDADgFYLGEINGRRGLVPCNMVS 61
SH3_2 pfam07653
Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in ...
1079-1136 1.79e-08

Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 429575 [Multi-domain]  Cd Length: 54  Bit Score: 52.21  E-value: 1.79e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGElqaRGKKRqiGWFPANYVKLL 1136
Cdd:pfam07653    2 GRVIFDYVGTDKNGLTLKKGDVVKVLGKDNDGWWEGE---TGGRV--GLVPSTAVEEI 54
sbcc TIGR00618
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
342-682 1.80e-08

exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 129705 [Multi-domain]  Cd Length: 1042  Bit Score: 59.60  E-value: 1.80e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  342 LEKKLPVTFEDKKRENFERGNLELEKRRQALLEQQRKEQ-----ERLAQLERAEQERkeRERQEQERKRQLELEKQLEKQ 416
Cdd:TIGR00618  175 LDQYTQLALMEFAKKKSLHGKAELLTLRSQLLTLCTPCMpdtyhERKQVLEKELKHL--REALQQTQQSHAYLTQKREAQ 252
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  417 relerqreeerrkeierreaaKRELERQRQLEWERNRRQELLNQ--RNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEG 494
Cdd:TIGR00618  253 ---------------------EEQLKKQQLLKQLRARIEELRAQeaVLEETQERINRARKAAPLAAHIKAVTQIEQQAQR 311
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  495 KLQDIRCRLTT-----------QRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQI-LNDQLKQVQQNSLHR 562
Cdd:TIGR00618  312 IHTELQSKMRSrakllmkraahVKQQSSIEEQRRLLQTLHSQEIHIRDAHEVATSIREISCQQHtLTQHIHTLQQQKTTL 391
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  563 DSLVTLKRALEAKELARQHLRDQLDEVEKETRSKL------QEIDIFNNQLKELrEIHNKQQLQKQKSMEAERLKQKEQE 636
Cdd:TIGR00618  392 TQKLQSLCKELDILQREQATIDTRTSAFRDLQGQLahakkqQELQQRYAELCAA-AITCTAQCEKLEKIHLQESAQSLKE 470
                          330       340       350       360
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  637 RKiiELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRP---RKLHEEEKL 682
Cdd:TIGR00618  471 RE--QQLQTKEQIHLQETRKKAVVLARLLELQEEPCPlcgSCIHPNPAR 517
SH3_betaPIX cd12061
Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho ...
746-804 1.86e-08

Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho guanine nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned out of Library)-1, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and plays important roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212994 [Multi-domain]  Cd Length: 54  Bit Score: 51.99  E-value: 1.86e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAEKI 804
Cdd:cd12061      3 RAKFNFQQTNEDELSFSKGDVIHV-------TRVEEGGWWEGTHNGRTGWFPSNYVREI 54
SH3_SGSM3 cd11813
Src Homology 3 domain of Small G protein Signaling Modulator 3; SGSM3 is also called ...
1165-1211 1.93e-08

Src Homology 3 domain of Small G protein Signaling Modulator 3; SGSM3 is also called Merlin-associated protein (MAP), RUN and SH3 domain-containing protein (RUSC3), RUN and TBC1 domain-containing protein 3 (RUTBC3), Rab GTPase-activating protein 5 (RabGAP5), or Rab GAP-like protein (RabGAPLP). It is expressed ubiquitously and functions as a regulator of small G protein RAP- and RAB-mediated neuronal signaling. It is involved in modulating NGF-mediated neurite outgrowth and differentiation. It also interacts with the tumor suppressor merlin and may play a role in the merlin-associated suppression of cell growth. SGSM3 contains TBC, SH3, and RUN domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212747  Cd Length: 53  Bit Score: 52.12  E-value: 1.93e-08
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1165 DYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11813      7 DFERHDDDELGFRKNDIITIISQKDEHCWVGELNGLRGWFPAKFVEL 53
SH3_SH3RF3_1 cd11928
First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
1009-1057 2.00e-08

First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212861  Cd Length: 54  Bit Score: 52.23  E-value: 2.00e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11928      5 ALYSYEGKEPGDLKFNKGDIIILRRKvDENWYHGELNGCHGFLPASYIQC 54
SH3_GRB2_C cd11949
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
1009-1056 2.09e-08

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRB2 binds to Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, as well as to the proline-rich C-terminus of FGRF2. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212882 [Multi-domain]  Cd Length: 53  Bit Score: 52.15  E-value: 2.09e-08
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd11949      4 ALFDFDPQEDGELGFRRGDFIeVMDNSDPNWWKGACHGQTGMFPRNYVT 52
SH3_PACSIN cd11843
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) ...
746-802 2.11e-08

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) proteins; PACSINs, also called Synaptic dynamin-associated proteins (Syndapins), act as regulators of cytoskeletal and membrane dynamics. They bind both dynamin and Wiskott-Aldrich syndrome protein (WASP), and may provide direct links between the actin cytoskeletal machinery through WASP and dynamin-dependent endocytosis. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212777 [Multi-domain]  Cd Length: 53  Bit Score: 52.04  E-value: 2.11e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMvKGEWVDESqtgepGWLGGELKGKTGWFPANYAE 802
Cdd:cd11843      3 RALYDYEGQESDELSFKAGDILT-KLEEEDEQ-----GWCKGRLDGRVGLYPANYVE 53
SH3_Nck2_3 cd11903
Third Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
1163-1209 2.16e-08

Third Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212836 [Multi-domain]  Cd Length: 59  Bit Score: 51.98  E-value: 2.16e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNK--EDPDWWKGE-VNGQVGLFPSNYV 1209
Cdd:cd11903      6 LYPFSSVTEEELNFEKGETMEVIEKpeNDPEWWKCKnSRGQVGLVPKNYV 55
SH3_CD2AP-like_1 cd11873
First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This ...
1081-1134 2.30e-08

First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This subfamily is composed of the first SH3 domain (SH3A) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3A of both proteins bind to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic domain of the cell adhesion protein CD2. CIN85 SH3A binds to internal proline-rich motifs within the proline-rich region; this intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. CIN85 SH3A has also been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212806 [Multi-domain]  Cd Length: 53  Bit Score: 51.88  E-value: 2.30e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELqaRGKKrqiGWFPANYVK 1134
Cdd:cd11873      4 VEFDYDAEEPDELTLKVGDIITNVKKMEEGWWEGTL--NGKR---GMFPDNFVK 52
C2A_fungal cd04041
C2 domain first repeat; fungal group; C2 domains were first identified in Protein Kinase C ...
1615-1688 2.31e-08

C2 domain first repeat; fungal group; C2 domains were first identified in Protein Kinase C (PKC). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176006 [Multi-domain]  Cd Length: 111  Bit Score: 53.80  E-value: 2.31e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1615 GKSNPYCEVTM---GSQCHITKTIQDTLNPKWNSNCqfFI----RDLE-QEVLCITVFERDQFSPDDFLGRTEIRVADIK 1686
Cdd:cd04041     21 GSSDPYVTASFakfGKPLYSTRIIRKDLNPVWEETW--FVlvtpDEVKaGERLSCRLWDSDRFTADDRLGRVEIDLKELI 98

                   ..
gi 1034627469 1687 KD 1688
Cdd:cd04041     99 ED 100
SH3_FCHSD1_2 cd11895
Second Src Homology 3 domain of FCH and double SH3 domains protein 1; FCHSD1 has a domain ...
1162-1210 2.33e-08

Second Src Homology 3 domain of FCH and double SH3 domains protein 1; FCHSD1 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212828  Cd Length: 58  Bit Score: 51.89  E-value: 2.33e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKE----DPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11895      4 ALYSYTGQSPEELSFPEGALIRLLPRAqdgvDDGFWRGEFGGRVGVFPSLLVE 56
SH3_Sdc25 cd11883
Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is ...
919-965 2.37e-08

Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is composed of the Saccharomyces cerevisiae guanine nucleotide exchange factors (GEFs) Sdc25 and Cdc25, and similar proteins. These GEFs regulate Ras by stimulating the GDP/GTP exchange on Ras. Cdc25 is involved in the Ras/PKA pathway that plays an important role in the regulation of metabolism, stress responses, and proliferation, depending on available nutrients and conditions. Proteins in this subfamily contain an N-terminal SH3 domain as well as REM (Ras exchanger motif) and RasGEF domains at the C-terminus. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212816  Cd Length: 55  Bit Score: 51.90  E-value: 2.37e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEV-----QGQKGWFPKSY 965
Cdd:cd11883      3 VALYDFTPKSKNQLSFKAGDIIYVLNKDPSgWWDGVIisssgKVKRGWFPSNY 55
DUF4670 pfam15709
Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins ...
587-704 2.56e-08

Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins in this family are typically between 373 and 763 amino acids in length.


Pssm-ID: 464815 [Multi-domain]  Cd Length: 522  Bit Score: 58.81  E-value: 2.56e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  587 DEVEKETRSKLQEIDIFNNQLKELR----EIHNKQQLQKQKSMEAERLKQKEQERKIIEL--EKQKEEAQRRAQERDKQW 660
Cdd:pfam15709  376 EELELEQQRRFEEIRLRKQRLEEERqrqeEEERKQRLQLQAAQERARQQQEEFRRKLQELqrKKQQEEAERAEAEKQRQK 455
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....
gi 1034627469  661 LEHVQQEDEHQRPRKLHEEEKLkrEESVKKKDGEEKGKQEAQDK 704
Cdd:pfam15709  456 ELEMQLAEEQKRLMEMAEEERL--EYQRQKQEAEEKARLEAEER 497
SH3_iASPP cd11952
Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP); iASPP, also called ...
1160-1211 2.65e-08

Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP); iASPP, also called RelA-associated inhibitor (RAI), is an oncoprotein that inhibits the apoptotic transactivation potential of p53. It is upregulated in human breast cancers expressing wild-type p53, in acute leukemias regardless of the p53 mutation status, as well as in ovarian cancer where it is associated with poor patient outcome and chemoresistance. iASPP is also a binding partner and negative regulator of p65RelA, which promotes cell proliferation and inhibits apoptosis; p65RelA has the opposite effect on cell growth compared to the p53 family. It contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of iASPP contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212885 [Multi-domain]  Cd Length: 56  Bit Score: 51.85  E-value: 2.65e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNK--EDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11952      3 VYALWDYSAEFPDELSFKEGDMVTVLRKdgEGTDWWWASLCGREGYVPRNYFGL 56
SH3_Src_like cd11845
Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members ...
1007-1054 2.72e-08

Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members include Src, Lck, Hck, Blk, Lyn, Fgr, Fyn, Yrk, Yes, and Brk. Src (or c-Src) proteins are cytoplasmic (or non-receptor) PTKs which are anchored to the plasma membrane. They contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation sites. Src proteins are involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. They were identified as the first proto-oncogene products, and they regulate cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Src kinases are overexpressed in a variety of human cancers, making them attractive targets for therapy. They are also implicated in acute inflammatory responses and osteoclast function. Src, Fyn, Yes, and Yrk are widely expressed, while Blk, Lck, Hck, Fgr, Lyn, and Brk show a limited expression pattern. This subfamily also includes Drosophila Src42A, Src oncogene at 42A (also known as Dsrc41) which accumulates at sites of cell-cell or cell-matrix adhesion, and participates in Drosphila development and wound healing. It has been shown to promote tube elongation in the tracheal system, is essential for proper cell-cell matching during dorsal closure, and regulates cell-cell contacts in developing Drosophila eyes. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212779 [Multi-domain]  Cd Length: 52  Bit Score: 51.43  E-value: 2.72e-08
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gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKK-DGDWW------TGtvgdKAGVFPSNY 1054
Cdd:cd11845      2 YVALYDYEARTDDDLSFKKGDRLQILDDsDGDWWlarhlsTG----KEGYIPSNY 52
SH3_2 pfam07653
Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in ...
1007-1057 2.73e-08

Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 429575 [Multi-domain]  Cd Length: 54  Bit Score: 51.44  E-value: 2.73e-08
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gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKKD-GDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:pfam07653    2 GRVIFDYVGTDKNGLTLKKGDVVKVLGKDnDGWWEGETGGRVGLVPSTAVEE 53
SH3_CIN85_3 cd12057
Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1010-1057 2.76e-08

Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CIN85. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212990 [Multi-domain]  Cd Length: 56  Bit Score: 51.82  E-value: 2.76e-08
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                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1010 MYTYESSEQGDLTFQQGDVILVTKK---DGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd12057      5 LFPYEAQNEDELTIKEGDIVTLISKdciDAGWWEGELNGRRGVFPDNFVKL 55
SH3_MYO15 cd11884
Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to ...
1160-1209 2.79e-08

Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to Myosin XVa. Myosin XVa is an unconventional myosin that is critical for the normal growth of mechanosensory stereocilia of inner ear hair cells. Mutations in the myosin XVa gene are associated with nonsyndromic hearing loss. Myosin XVa contains a unique N-terminal extension followed by a motor domain, light chain-binding IQ motifs, and a tail consisting of a pair of MyTH4-FERM tandems separated by a SH3 domain, and a PDZ domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212817 [Multi-domain]  Cd Length: 56  Bit Score: 51.56  E-value: 2.79e-08
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gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKE---DPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11884      2 VVAVRAYITRDQTLLSFHKGDVIKLLPKEgplDPGWLFGTLDGRSGAFPKEYV 54
SH3_Endophilin_A cd11803
Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, ...
1009-1055 2.79e-08

Src homology 3 domain of Endophilin-A; Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They are classified into two types, A and B. Vertebrates contain three endophilin-A isoforms (A1, A2, and A3). Endophilin-A proteins are enriched in the brain and play multiple roles in receptor-mediated endocytosis. They tubulate membranes and regulate calcium influx into neurons to trigger the activation of the endocytic machinery. They are also involved in the sorting of plasma membrane proteins, actin filament assembly, and the uncoating of clathrin-coated vesicles for fusion with endosomes. Endophilins contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212737 [Multi-domain]  Cd Length: 55  Bit Score: 51.49  E-value: 2.79e-08
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11803      5 ALYDFEPENEGELGFKEGDIItLTNQIDENWYEGMVNGQSGFFPVNYV 52
SH3_CIN85_1 cd12052
First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1006-1056 2.91e-08

First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CIN85; SH3A binds to internal proline-rich motifs within the proline-rich region. This intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. SH3A has also been shown to bind ubiquitin and to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic end of the cell adhesion protein CD2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212985 [Multi-domain]  Cd Length: 53  Bit Score: 51.43  E-value: 2.91e-08
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gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd12052      1 EAIVEFDYKAQHEDELTITVGDIITkIKKDDGGWWEGEIKGRRGLFPDNFVR 52
SH3_Amphiphysin cd11790
Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in ...
1164-1210 2.97e-08

Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in endocytosis and other membrane remodeling events. They exist in several isoforms and mammals possess two amphiphysin proteins from distinct genes. Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin, and synaptojanin. They function in synaptic vesicle endocytosis. Human autoantibodies to amphiphysin I hinder GABAergic signaling and contribute to the pathogenesis of paraneoplastic stiff-person syndrome. Some amphiphysin II isoforms, also called Bridging integrator 1 (Bin1), are localized in many different tissues and may function in intracellular vesicle trafficking. In skeletal muscle, Bin1 plays a role in the organization and maintenance of the T-tubule network. Mutations in Bin1 are associated with autosomal recessive centronuclear myopathy. Amphiphysins contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. The SH3 domain of amphiphysins bind proline-rich motifs present in binding partners such as dynamin, synaptojanin, and nsP3. It also belongs to a subset of SH3 domains that bind ubiquitin in a site that overlaps with the peptide binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212724 [Multi-domain]  Cd Length: 64  Bit Score: 51.94  E-value: 2.97e-08
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gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPD-----WWKG--EVNGQVGLFPSNYVK 1210
Cdd:cd11790      9 HDYTAEDTDELTFEKGDVILVIPFDDPEeqdegWLMGvkESTGCRGVFPENFTE 62
SH3_Nephrocystin cd11770
Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain ...
1160-1211 3.15e-08

Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain involved in signaling pathways that regulate cell adhesion and cytoskeletal organization. It is a protein that in humans is associated with juvenile nephronophthisis, an inherited kidney disease characterized by renal fibrosis that lead to chronic renal failure in children. It is localized in cell-cell junctions in renal duct cells, and is known to interact with Ack1, an activated Cdc42-associated kinase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212704 [Multi-domain]  Cd Length: 54  Bit Score: 51.54  E-value: 3.15e-08
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gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGE-VNGQVGLFPSNYVKL 1211
Cdd:cd11770      2 YEALSDFQAEQEGDLSFKKGEVLRIISKRADGWWLAEnSKGNRGLVPKTYLKV 54
SH3_CD2AP-like_3 cd11875
Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This ...
1079-1135 3.37e-08

Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212808 [Multi-domain]  Cd Length: 55  Bit Score: 51.58  E-value: 3.37e-08
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gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPG--GWWEGELQARgkkrqIGWFPANYVKL 1135
Cdd:cd11875      2 ARVLFDYEAENEDELTLREGDIVTILSKDCEdkGWWKGELNGK-----RGVFPDNFVEP 55
SH3_Sorbs_2 cd11782
Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
1164-1210 3.43e-08

Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the second SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212716 [Multi-domain]  Cd Length: 53  Bit Score: 51.20  E-value: 3.43e-08
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gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11782      6 YNFNADTGVELSFRKGDVITLTRRVDENWYEGRIGGRQGIFPVSYVQ 52
SH3_CAS cd11844
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding proteins; CAS proteins ...
1163-1211 3.47e-08

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding proteins; CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes including migration, chemotaxis, apoptosis, differentiation, and progenitor cell function. They mediate the signaling of integrins at focal adhesions where they localize, and thus, regulate cell invasion and survival. Over-expression of these proteins is implicated in poor prognosis, increased metastasis, and resistance to chemotherapeutics in many cancers such as breast, lung, melanoma, and glioblastoma. CAS proteins have also been linked to the pathogenesis of inflammatory disorders, Alzheimer's, Parkinson's, and developmental defects. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. Vertebrates contain four CAS proteins: BCAR1 (or p130Cas), NEDD9 (or HEF1), EFS (or SIN), and CASS4 (or HEPL). The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212778  Cd Length: 56  Bit Score: 51.58  E-value: 3.47e-08
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPD---WWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11844      5 LYDNVAESPDELAFRRGDILTVLEQNTAGlegWWLCSLRGRQGIAPGNRLKL 56
SH3_ASEF2 cd11974
Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor 2; ASEF2, also ...
1163-1211 3.67e-08

Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor 2; ASEF2, also called Spermatogenesis-associated protein 13 (SPATA13), is a GEF that localizes with actin at the leading edge of cells and is important in cell migration and adhesion dynamics. GEFs activate small GTPases by exchanging bound GDP for free GTP. ASEF2 can activate both Rac 1 and Cdc42, but only Rac1 activation is necessary for increased cell migration and adhesion turnover. Together with APC (adenomatous polyposis coli) and Neurabin2, a scaffold protein that binds F-actin, it is involved in regulating HGF-induced cell migration. ASEF2 contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212907  Cd Length: 54  Bit Score: 51.22  E-value: 3.67e-08
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11974      6 LWDHVTMDDQELAFKAGDVIRVLEASNKDWWWGRNEDREAWFPASFVRL 54
SH3_SH3RF3_1 cd11928
First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
1163-1211 3.71e-08

First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212861  Cd Length: 54  Bit Score: 51.46  E-value: 3.71e-08
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11928      6 LYSYEGKEPGDLKFNKGDIIILRRKVDENWYHGELNGCHGFLPASYIQC 54
Myosin_tail_1 pfam01576
Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and ...
366-687 3.81e-08

Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and four light chains it is a fundamental contractile protein found in all eukaryote cell types. This family consists of the coiled-coil myosin heavy chain tail region. The coiled-coil is composed of the tail from two molecules of myosin. These can then assemble into the macromolecular thick filament. The coiled-coil region provides the structural backbone the thick filament.


Pssm-ID: 460256 [Multi-domain]  Cd Length: 1081  Bit Score: 58.65  E-value: 3.81e-08
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gi 1034627469  366 EKRRQALLEQQRKEQERLAQlerAEQERKERERQEQerkrQLELEK-QLEKQRELERQREEERRKEIERREAAKRELER- 443
Cdd:pfam01576    4 EEEMQAKEEELQKVKERQQK---AESELKELEKKHQ----QLCEEKnALQEQLQAETELCAEAEEMRARLAARKQELEEi 76
                           90       100       110       120       130       140       150       160
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gi 1034627469  444 ----QRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTT---QRQEIESTNKS 516
Cdd:pfam01576   77 lhelESRLEEEEERSQQLQNEKKKMQQHIQDLEEQLDEEEAARQKLQLEKVTTEAKIKKLEEDILLledQNSKLSKERKL 156
                          170       180       190       200       210       220       230       240
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gi 1034627469  517 RELRIAEITHLQQQLQESQQMLGRLIPEKQI----LNDQLKQVQQNslhRDSLVTLKRALEAK--ELARQH--------- 581
Cdd:pfam01576  157 LEERISEFTSNLAEEEEKAKSLSKLKNKHEAmisdLEERLKKEEKG---RQELEKAKRKLEGEstDLQEQIaelqaqiae 233
                          250       260       270       280       290       300       310       320
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gi 1034627469  582 LRDQLDEVEKETRSKLQEID----IFNNQLKELREIHNkQQLQKQKSMEAERL--KQKEQERKII--ELEKQKEEAQrra 653
Cdd:pfam01576  234 LRAQLAKKEEELQAALARLEeetaQKNNALKKIRELEA-QISELQEDLESERAarNKAEKQRRDLgeELEALKTELE--- 309
                          330       340       350
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gi 1034627469  654 qerDKQWLEHVQQEDEHQRPRKLHEEEKLKREES 687
Cdd:pfam01576  310 ---DTLDTTAAQQELRSKREQEVTELKKALEEET 340
SH3_CRK_N cd11758
N-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor ...
1160-1209 3.95e-08

N-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor proteins consists of SH2 and SH3 domains, which bind tyrosine-phosphorylated peptides and proline-rich motifs, respectively. They function downstream of protein tyrosine kinases in many signaling pathways started by various extracellular signals, including growth and differentiation factors. Cellular CRK (c-CRK) contains a single SH2 domain, followed by N-terminal and C-terminal SH3 domains. It is involved in the regulation of many cellular processes including cell growth, motility, adhesion, and apoptosis. CRK has been implicated in the malignancy of various human cancers. The N-terminal SH3 domain of CRK binds a number of target proteins including DOCK180, C3G, SOS, and cABL. The CRK family includes two alternatively spliced protein forms, CRKI and CRKII, that are expressed by the CRK gene, and the CRK-like (CRKL) protein, which is expressed by a distinct gene (CRKL). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212692 [Multi-domain]  Cd Length: 55  Bit Score: 51.21  E-value: 3.95e-08
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gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGE-VNGQVGLFPSNYV 1209
Cdd:cd11758      3 VRALFDFPGNDDEDLPFKKGEILTVIRKPEEQWWNARnSEGKTGMIPVPYV 53
SH3_alphaPIX cd12060
Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho ...
746-804 3.97e-08

Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho guanine nucleotide exchange factor 6 (ARHGEF6) or Cool (Cloned out of Library)-2, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and is localized in dendritic spines where it regulates spine morphogenesis. It controls dendritic length and spine density in the hippocampus. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212993  Cd Length: 58  Bit Score: 51.54  E-value: 3.97e-08
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gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAEKI 804
Cdd:cd12060      5 KARFNFKQTNEDELSVCKGDIIYV-------TRVEEGGWWEGTLNGKTGWFPSNYVREI 56
SH3_CIN85_3 cd12057
Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
917-969 4.17e-08

Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CIN85. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212990 [Multi-domain]  Cd Length: 56  Bit Score: 51.05  E-value: 4.17e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM---WWFGEVQGQKGWFPKSYVKLI 969
Cdd:cd12057      1 YCKVLFPYEAQNEDELTIKEGDIVTLISKDCIdagWWEGELNGRRGVFPDNFVKLL 56
SH3_CIN85_3 cd12057
Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
744-802 4.69e-08

Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CIN85. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212990 [Multi-domain]  Cd Length: 56  Bit Score: 51.05  E-value: 4.69e-08
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIV-MVKGEWVDesqtgePGWLGGELKGKTGWFPANYAE 802
Cdd:cd12057      1 YCKVLFPYEAQNEDELTIKEGDIVtLISKDCID------AGWWEGELNGRRGVFPDNFVK 54
SH3_Blk cd12009
Src homology 3 domain of Blk Protein Tyrosine Kinase; Blk is a member of the Src subfamily of ...
1008-1055 4.76e-08

Src homology 3 domain of Blk Protein Tyrosine Kinase; Blk is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. It is expressed specifically in B-cells and is involved in pre-BCR (B-cell receptor) signaling. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212942 [Multi-domain]  Cd Length: 54  Bit Score: 50.97  E-value: 4.76e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTGT--VGDKAGVFPSNYV 1055
Cdd:cd12009      3 IAQYDFVPSNERDLQLKKGEKLQVLKSDGEWWLAKslTTGKEGYIPSNYV 52
SH3_NoxO1_2 cd12024
Second or C-terminal Src homology 3 domain of NADPH oxidase (Nox) Organizing protein 1; Nox ...
1166-1211 4.83e-08

Second or C-terminal Src homology 3 domain of NADPH oxidase (Nox) Organizing protein 1; Nox Organizing protein 1 (NoxO1) is a critical regulator of enzyme kinetics of the nonphagocytic NADPH oxidase Nox1, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Nox1 is expressed in colon, stomach, uterus, prostate, and vascular smooth muscle cells. NoxO1 is involved in targeting activator subunits (such as NoxA1) to Nox1. It is co-localized with Nox1 in the membranes of resting cells and directs the subcellular localization of Nox1. NoxO1 contains an N-terminal Phox homology (PX) domain, tandem SH3 domains (N-SH3 and C-SH3), and a C-terminal proline-rich region (PRR). This model characterizes the second SH3 domain (or C-SH3) of NoxO1. The tandem SH3 domains of NoxO1 interact with the PRR of p22phox, which also complexes with Nox1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212957  Cd Length: 53  Bit Score: 50.80  E-value: 4.83e-08
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1166 YTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd12024      8 YEAQKEDELSVPAGVVVEVLQKSDNGWWLIRYNGRAGYVPSMYLQP 53
SH3_MyoIe_If_like cd11827
Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If ...
917-966 4.86e-08

Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If (MyoIf) are nonmuscle, unconventional, long tailed, class I myosins containing an N-terminal motor domain and a myosin tail with TH1, TH2, and SH3 domains. MyoIe interacts with the endocytic proteins, dynamin and synaptojanin-1, through its SH3 domain; it may play a role in clathrin-dependent endocytosis. In the kidney, MyoIe is critical for podocyte function and normal glomerular filtration. Mutations in MyoIe is associated with focal segmental glomerulosclerosis, a disease characterized by massive proteinuria and progression to end-stage kidney disease. MyoIf is predominantly expressed in the immune system; it plays a role in immune cell motility and innate immunity. Mutations in MyoIf may be associated with the loss of hearing. The MyoIf gene has also been found to be fused to the MLL (Mixed lineage leukemia) gene in infant acute myeloid leukemias (AML). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212761 [Multi-domain]  Cd Length: 53  Bit Score: 50.88  E-value: 4.86e-08
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                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVL-EQQDMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11827      1 QCKALYAYDAQDTDELSFNEGDIIEILkEDPSGWWTGRLRGKEGLFPGNYV 51
SH3_Lck cd12005
Src homology 3 domain of Lck Protein Tyrosine Kinase; Lck is a member of the Src subfamily of ...
1159-1209 5.07e-08

Src homology 3 domain of Lck Protein Tyrosine Kinase; Lck is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Lck is expressed in T-cells and natural killer cells. It plays a critical role in T-cell maturation, activation, and T-cell receptor (TCR) signaling. Lck phosphorylates ITAM (immunoreceptor tyr activation motif) sequences on several subunits of TCRs, leading to the activation of different second messenger cascades. Phosphorylated ITAMs serve as binding sites for other signaling factor such as Syk and ZAP-70, leading to their activation and propagation of downstream events. In addition, Lck regulates drug-induced apoptosis by interfering with the mitochondrial death pathway. The apototic role of Lck is independent of its primary function in T-cell signaling. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212938 [Multi-domain]  Cd Length: 54  Bit Score: 50.98  E-value: 5.07e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLnKEDPDWWKGE--VNGQVGLFPSNYV 1209
Cdd:cd12005      1 LVVALYSYEPSHDGDLGFEKGEKLRIL-EQSGEWWKAQslTTGQEGFIPFNFV 52
SH3_SH3RF1_1 cd11927
First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ...
1162-1211 5.08e-08

First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212860  Cd Length: 54  Bit Score: 51.10  E-value: 5.08e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11927      5 ALYNYEGKEPGDLKFSKGDIIILRRQVDENWYHGEVNGIHGFFPTNFVQI 54
SH3_GRAP_C cd11951
C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
918-966 5.17e-08

C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domains (SH3c) of the related proteins, GRB2 and GRAP2, have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212884  Cd Length: 53  Bit Score: 50.95  E-value: 5.17e-08
                           10        20        30        40        50
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gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQGQKGWFPKSYV 966
Cdd:cd11951      2 VQAQYDFSAEDPSQLSFRRGDIIEVLDCPDpNWWRGRISGRVGFFPRNYV 51
SH3_GRAP_N cd11948
N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
917-968 5.20e-08

N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The N-terminal SH3 domain of the related protein GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212881 [Multi-domain]  Cd Length: 54  Bit Score: 50.97  E-value: 5.20e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQD--MWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11948      1 EAVALYSFQATESDELPFQKGDILKILNMEDdqNWYKAELQGREGYIPKNYIKV 54
SH3_SKAP1 cd12044
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1; SKAP1, also called SKAP55 ...
1162-1209 5.27e-08

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1; SKAP1, also called SKAP55 (Src kinase-associated protein of 55kDa), is an immune cell-specific adaptor protein that plays an important role in T-cell adhesion, migration, and integrin clustering. It is expressed exclusively in T-lymphocytes, mast cells, and macrophages. Binding partners include ADAP (adhesion and degranulation-promoting adaptor protein), Fyn, Riam, RapL, and RasGRP. It contains a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. The SH3 domain of SKAP1 is necessary for its ability to regulate T-cell conjugation with antigen-presenting cells and the formation of LFA-1 clusters. SKAP1 binds primarily to a proline-rich region of ADAP through its SH3 domain; its degradation is regulated by ADAP. A secondary interaction occurs via the ADAP SH3 domain and the RKxxYxxY motif in SKAP1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212977  Cd Length: 53  Bit Score: 51.01  E-value: 5.27e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKEDP--DWWKGEVNGQVGLFPSNYV 1209
Cdd:cd12044      4 GLWDCFGDNPDELSFQRGDLIYILSKEYNmyGWWVGELNGIVGIVPKDYL 53
SH3_Ysc84p_like cd11842
Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the ...
917-968 5.29e-08

Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the Saccharomyces cerevisiae proteins, Ysc84p (also called LAS17-binding protein 4, Lsb4p) and Lsb3p, and similar fungal proteins. They contain an N-terminal SYLF domain (also called DUF500) and a C-terminal SH3 domain. Ysc84p localizes to actin patches and plays an important in actin polymerization during endocytosis. The N-terminal domain of both Ysc84p and Lsb3p can bind and bundle actin filaments. A study of the yeast SH3 domain interactome predicts that the SH3 domains of Lsb3p and Lsb4p may function as molecular hubs for the assembly of endocytic complexes. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212776 [Multi-domain]  Cd Length: 55  Bit Score: 50.89  E-value: 5.29e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQ---QDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11842      1 KAVALYDFAGEQPGDLAFQKGDIITILKKsdsQNDWWTGRIGGREGIFPANYVEL 55
SH3_Sorbs1_1 cd11919
First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; ...
1164-1211 5.47e-08

First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212852 [Multi-domain]  Cd Length: 55  Bit Score: 50.73  E-value: 5.47e-08
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11919      7 FDFKAQTLKELPLQKGDIVYIYKQIDQNWYEGEHHGRVGIFPRSYIEL 54
SH3_PACSIN_like cd11999
Src homology 3 domain of an unknown subfamily of proteins with similarity to Protein kinase C ...
1159-1209 5.50e-08

Src homology 3 domain of an unknown subfamily of proteins with similarity to Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) proteins; PACSINs, also called Synaptic dynamin-associated proteins (Syndapins), act as regulators of cytoskeletal and membrane dynamics. They bind both dynamin and Wiskott-Aldrich syndrome protein (WASP), and may provide direct links between the actin cytoskeletal machinery through WASP and dynamin-dependent endocytosis. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212932 [Multi-domain]  Cd Length: 56  Bit Score: 50.71  E-value: 5.50e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPD-WWKGEVN-GQVGLFPSNYV 1209
Cdd:cd11999      3 RVRAVYDYTGQEPDELSFKAGEELLKVEDEDEQgWCKGVTDgGAVGLYPANYV 55
SH3_VAV2_2 cd11977
C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and ...
1161-1210 5.56e-08

C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and functions as a guanine nucleotide exchange factor (GEF) for RhoA, RhoB and RhoG and also activates Rac1 and Cdc42. It is implicated in many cellular and physiological functions including blood pressure control, eye development, neurite outgrowth and branching, EGFR endocytosis and degradation, and cell cluster morphology, among others. It has been reported to associate with Nek3. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212910 [Multi-domain]  Cd Length: 58  Bit Score: 50.78  E-value: 5.56e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNK--EDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11977      4 VARYNFAARDMRELSLREGDVVRIYSRigGDQGWWKGETNGRIGWFPSTYVE 55
SH3_SH3RF_3 cd11783
Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and ...
1160-1211 5.72e-08

Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212717 [Multi-domain]  Cd Length: 55  Bit Score: 50.86  E-value: 5.72e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGE--VNGQVGLFPSNYVKL 1211
Cdd:cd11783      2 YVALYPYKPQKPDELELRKGEMYTVTEKCQDGWFKGTslRTGQSGVFPGNYVQP 55
SH3_AHI-1 cd11812
Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called ...
1008-1055 5.77e-08

Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called Jouberin, is expressed in high levels in the brain, gonad tissues, and skeletal muscle. It is an adaptor protein that interacts with the small GTPase Rab8a and regulates it distribution and function, affecting cilium formation and vesicle transport. Mutations in the AHI-1 gene can cause Joubert syndrome, a disorder characterized by brainstem malformations, cerebellar aplasia/hypoplasia, and retinal dystrophy. AHI-1 variation is also associated with susceptibility to schizophrenia and type 2 diabetes mellitus progression. AHI-1 contains WD40 and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212746 [Multi-domain]  Cd Length: 52  Bit Score: 50.59  E-value: 5.77e-08
                           10        20        30        40        50
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gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGD-KAGVFPSNYV 1055
Cdd:cd11812      3 VALYDYTANRSDELTIHRGDIIRVLYKDNDnWWFGSLVNgQQGYFPANYV 52
DUF4659 pfam15558
Domain of unknown function (DUF4659); This family of proteins is found in eukaryotes. Proteins ...
337-654 5.96e-08

Domain of unknown function (DUF4659); This family of proteins is found in eukaryotes. Proteins in this family are typically between 427 and 674 amino acids in length. There are two completely conserved residues (D and I) that may be functionally important.


Pssm-ID: 464768 [Multi-domain]  Cd Length: 374  Bit Score: 56.97  E-value: 5.96e-08
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gi 1034627469  337 DEQQQLEKKLPVTFEDKKRENF----ERGNLELEKRRQAL-LEQQRKEQERLAQLERAEQERKER-ERQEQERKRQLELE 410
Cdd:pfam15558   35 EELRRRDQKRQETLERERRLLLqqsqEQWQAEKEQRKARLgREERRRADRREKQVIEKESRWREQaEDQENQRQEKLERA 114
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  411 KQLEKQRelerqreeerrkeierreaaKRELERQ-RQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEF--ELEALND 487
Cdd:pfam15558  115 RQEAEQR--------------------KQCQEQRlKEKEEELQALREQNSLQLQERLEEACHKRQLKEREEqkKVQENNL 174
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  488 K---KHQLegKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDS 564
Cdd:pfam15558  175 SellNHQA--RKVLVDCQAKAEELLRRLSLEQSLQRSQENYEQLVEERHRELREKAQKEEEQFQRAKWRAEEKEEERQEH 252
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  565 lvtlKRAL-EAKELARQHLRDQLDEVEKETRSKLQEIdifnNQLKELREIHNKQQLQKQKSMEAERLKQ--KEQERKIIE 641
Cdd:pfam15558  253 ----KEALaELADRKIQQARQVAHKTVQDKAQRAREL----NLEREKNHHILKLKVEKEEKCHREGIKEaiKKKEQRSEQ 324
                          330
                   ....*....|...
gi 1034627469  642 LEKQKEEAQRRAQ 654
Cdd:pfam15558  325 ISREKEATLEEAR 337
SH3_Abi cd11826
Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor ...
920-966 6.09e-08

Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. They localize to sites of actin polymerization in epithelial adherens junction and immune synapses, as well as to the leading edge of lamellipodia. Vertebrates contain two Abi proteins, Abi1 and Abi2. Abi1 displays a wide expression pattern while Abi2 is highly expressed in the eye and brain. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212760 [Multi-domain]  Cd Length: 52  Bit Score: 50.40  E-value: 6.09e-08
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVL-EQQDMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11826      4 ALYDYTADKDDELSFQEGDIIYVTkKNDDGWYEGVLNGVTGLFPGNYV 51
SH3_VAV_2 cd11830
C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as ...
747-803 6.29e-08

C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as cytoplasmic guanine nucleotide exchange factors (GEFs) for Rho GTPases and scaffold proteins and they play important roles in cell signaling by coupling cell surface receptors to various effector functions. They play key roles in processes that require cytoskeletal reorganization including immune synapse formation, phagocytosis, cell spreading, and platelet aggregation, among others. Vertebrates have three VAV proteins (VAV1, VAV2, and VAV3). VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212764 [Multi-domain]  Cd Length: 54  Bit Score: 50.71  E-value: 6.29e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKgewvdeSQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11830      4 ARYDFCARDMRELSLKEGDVVKIY------NKKGQQGWWRGEINGRIGWFPSTYVEE 54
SH3_Intersectin2_1 cd11988
First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
919-967 6.45e-08

First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN2 is expected to bind many protein partners, similar to ITSN1 which has been shown to bind Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212921 [Multi-domain]  Cd Length: 57  Bit Score: 50.64  E-value: 6.45e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQ---QDMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd11988      5 RALYPFEARNHDEMSFNAGDIIQVDEKtvgEPGWLYGSFQGNFGWFPCNYVE 56
SH3_MLK1-3 cd12059
Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine ...
744-800 6.53e-08

Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Little is known about the specific function of MLK1, also called MAP3K9. It is capable of activating the c-Jun N-terminal kinase pathway. Mice lacking both MLK1 and MLK2 are viable, fertile, and have normal life spans. MLK2, also called MAP3K10, is abundant in brain, skeletal muscle, and testis. It functions upstream of the MAPK, c-Jun N-terminal kinase. It binds hippocalcin, a calcium-sensor protein that protects neurons against calcium-induced cell death. Both MLK2 and hippocalcin may be associated with the pathogenesis of Parkinson's disease. MLK3, also called MAP3K11, is highly expressed in breast cancer cells and its signaling through c-Jun N-terminal kinase has been implicated in the migration, invasion, and malignancy of cancer cells. It also functions as a negative regulator of Inhibitor of Nuclear Factor-KappaB Kinase (IKK) and thus, impacts inflammation and immunity. MLKs contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212992 [Multi-domain]  Cd Length: 58  Bit Score: 50.54  E-value: 6.53e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKGEwvDESQTGEPGWLGGELKGKTGWFPANY 800
Cdd:cd12059      1 VWTAVFDYEASAEDELTLRRGDRVEVLSK--DSAVSGDEGWWTGKINDRVGIFPSNY 55
SH3_STAM cd11820
Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as ...
917-967 6.71e-08

Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. There are two vertebrate STAMs, STAM1 and STAM2, which may be functionally redundant; vertebrate STAMs contain ITAM motifs. They are part of the endosomal sorting complex required for transport (ESCRT-0). STAM2 deficiency in mice did not cause any obvious abnormality, while STAM1 deficiency resulted in growth retardation. Loss of both STAM1 and STAM2 in mice proved lethal, indicating that STAMs are important for embryonic development. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212754 [Multi-domain]  Cd Length: 54  Bit Score: 50.54  E-value: 6.71e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVK 967
Cdd:cd11820      2 KVRALYDFEAAEDNELTFKAGEIITVLDDSDPnWWKGSNHRGEGLFPANFVT 53
SH3_1 pfam00018
SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal ...
746-798 6.88e-08

SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 394975 [Multi-domain]  Cd Length: 47  Bit Score: 50.28  E-value: 6.88e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVkgewVDESqtgEPGWLGGELK-GKTGWFPA 798
Cdd:pfam00018    1 VALYDYTAQEPDELSFKKGDIIIV----LEKS---EDGWWKGRNKgGKEGLIPS 47
SH3_ASPP1 cd11954
Src Homology 3 domain of Apoptosis Stimulating of p53 protein 1; ASPP1, like ASPP2, activates ...
1160-1211 7.29e-08

Src Homology 3 domain of Apoptosis Stimulating of p53 protein 1; ASPP1, like ASPP2, activates the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73). In addition, it functions in the cytoplasm to regulate the nuclear localization of the transcriptional cofactors YAP and TAZ by inihibiting their phosphorylation; YAP and TAZ are important regulators of cell expansion, differentiation, migration, and invasion. ASPP1 is downregulated in breast tumors expressing wild-type p53. It contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of ASPP1 contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212887 [Multi-domain]  Cd Length: 57  Bit Score: 50.40  E-value: 7.29e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKED---PDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11954      3 VYALWDYEAQNADELSFQEGDAITILRRKDdseTEWWWARLNDKEGYVPKNLLGL 57
SH3_Intersectin_5 cd11840
Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor ...
1080-1135 7.47e-08

Fifth Src homology 3 domain (or SH3E) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212774 [Multi-domain]  Cd Length: 53  Bit Score: 50.49  E-value: 7.47e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1080 QVIA--SYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQArgkkrQIGWFPANYVKL 1135
Cdd:cd11840      1 QVIAlfPYTAQNEDELSFQKGDIINVLSKDDPDWWRGELNG-----QTGLFPSNYVEP 53
SH3_STAM1 cd11964
Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal ...
917-966 7.57e-08

Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal sorting complex required for transport (ESCRT-0) and is involved in sorting ubiquitinated cargo proteins from the endosome. It may also be involved in the regulation of IL2 and GM-CSF mediated signaling, and has been implicated in neural cell survival. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212897 [Multi-domain]  Cd Length: 55  Bit Score: 50.33  E-value: 7.57e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQGQKGWFPKSYV 966
Cdd:cd11964      2 KVRAIYDFEAAEDNELTFKAGDIITILDDSDpNWWKGETPQGTGLFPSNFV 52
SH3_GRAP2_C cd11950
C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
1009-1056 7.75e-08

C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also has roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRAP2 binds to different motifs found in substrate peptides including the typical PxxP motif in hematopoietic progenitor kinase 1 (HPK1), the RxxK motif in SLP-76 and HPK1, and the RxxxxK motif in phosphatase-like protein HD-PTP. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212883 [Multi-domain]  Cd Length: 53  Bit Score: 50.21  E-value: 7.75e-08
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILV-TKKDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd11950      4 ALYDFEALEDDELGFNSGDVIEVlDSSNPSWWKGRLHGKLGLFPANYVA 52
C2A_Rabphilin_Doc2 cd04035
C2 domain first repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons ...
1597-1689 7.89e-08

C2 domain first repeat present in Rabphilin and Double C2 domain; Rabphilin is found neurons and in neuroendrocrine cells, while Doc2 is found not only in the brain but in tissues, including mast cells, chromaffin cells, and osteoblasts. Rabphilin and Doc2s share highly homologous tandem C2 domains, although their N-terminal structures are completely different: rabphilin contains an N-terminal Rab-binding domain (RBD),7 whereas Doc2 contains an N-terminal Munc13-1-interacting domain (MID). C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176000 [Multi-domain]  Cd Length: 123  Bit Score: 52.67  E-value: 7.89e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1597 RLMVNVVEGIELKPCRSHGKSNPYCevtmgsQCHI-----------TKTIQDTLNPKWNSNCQFF-IR--DLEQEVLCIT 1662
Cdd:cd04035     16 ALHCTIIRAKGLKAMDANGLSDPYV------KLNLlpgaskatklrTKTVHKTRNPEFNETLTYYgITeeDIQRKTLRLL 89
                           90       100
                   ....*....|....*....|....*..
gi 1034627469 1663 VFERDQFSpDDFLGRTEIRVADIKKDQ 1689
Cdd:cd04035     90 VLDEDRFG-NDFLGETRIPLKKLKPNQ 115
SH3_CD2AP-like_1 cd11873
First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This ...
745-803 7.96e-08

First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This subfamily is composed of the first SH3 domain (SH3A) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3A of both proteins bind to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic domain of the cell adhesion protein CD2. CIN85 SH3A binds to internal proline-rich motifs within the proline-rich region; this intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. CIN85 SH3A has also been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212806 [Multi-domain]  Cd Length: 53  Bit Score: 50.34  E-value: 7.96e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVmvkgewVDESQTgEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11873      2 VIVEFDYDAEEPDELTLKVGDII------TNVKKM-EEGWWEGTLNGKRGMFPDNFVKV 53
SH3_Abi2 cd11972
Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It ...
1005-1055 8.08e-08

Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It regulates actin cytoskeletal reorganization at adherens junctions and dendritic spines, which is important in cell morphogenesis, migration, and cognitive function. Mice deficient with Abi2 show defects in orientation and migration of lens fibers, neuronal migration, dendritic spine morphology, as well as deficits in learning and memory. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212905 [Multi-domain]  Cd Length: 61  Bit Score: 50.39  E-value: 8.08e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1005 EEFIAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11972      3 EKVVAIYDYTKDKEDELSFQEGAIIYVIKKNDDgWYEGVMNGVTGLFPGNYV 54
SH3_Sdc25 cd11883
Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is ...
1008-1054 8.55e-08

Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is composed of the Saccharomyces cerevisiae guanine nucleotide exchange factors (GEFs) Sdc25 and Cdc25, and similar proteins. These GEFs regulate Ras by stimulating the GDP/GTP exchange on Ras. Cdc25 is involved in the Ras/PKA pathway that plays an important role in the regulation of metabolism, stress responses, and proliferation, depending on available nutrients and conditions. Proteins in this subfamily contain an N-terminal SH3 domain as well as REM (Ras exchanger motif) and RasGEF domains at the C-terminus. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212816  Cd Length: 55  Bit Score: 50.36  E-value: 8.55e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILV-TKKDGDWWTGTVGD-----KAGVFPSNY 1054
Cdd:cd11883      3 VALYDFTPKSKNQLSFKAGDIIYVlNKDPSGWWDGVIISssgkvKRGWFPSNY 55
SH3_Eve1_5 cd11818
Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
746-800 8.61e-08

Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212752 [Multi-domain]  Cd Length: 50  Bit Score: 50.17  E-value: 8.61e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVmVKGEWVDESqtgepgWLGGELKGKTGWFPANY 800
Cdd:cd11818      3 RALYDFTGENEDELSFKAGDII-TELESIDEE------WMSGELRGKSGIFPKNF 50
SH3_Brk cd11847
Src homology 3 domain of Brk (Breast tumor kinase) Protein Tyrosine Kinase (PTK), also called ...
1007-1055 9.01e-08

Src homology 3 domain of Brk (Breast tumor kinase) Protein Tyrosine Kinase (PTK), also called PTK6; Brk is a cytoplasmic (or non-receptor) PTK with limited homology to Src kinases. It has been found to be overexpressed in a majority of breast tumors. It plays roles in normal cell differentiation, proliferation, survival, migration, and cell cycle progression. Brk substrates include RNA-binding proteins (SLM-1/2, Sam68), transcription factors (STAT3/5), and signaling molecules (Akt, paxillin, IRS-4). Src kinases in general contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr; they are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation site. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212781 [Multi-domain]  Cd Length: 58  Bit Score: 50.25  E-value: 9.01e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTGTVGDKA------GVFPSNYV 1055
Cdd:cd11847      2 YKALWDFKARGDEELSFQAGDQFRIAERSGDWWTALKLDRAggvvaqGFVPNNYL 56
SH3_Cortactin cd11959
Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src ...
747-802 9.17e-08

Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src kinase. It is an actin regulatory protein that binds to the Arp2/3 complex and stabilizes branched actin filaments. It is involved in cellular processes that affect cell motility, adhesion, migration, endocytosis, and invasion. It is expressed ubiquitously except in hematopoietic cells, where the homolog hematopoietic lineage cell-specific 1 (HS1) is expressed instead. Cortactin contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region interacts with the Arp2/3 complex and F-actin, and is crucial in regulating branched actin assembly. Cortactin also serves as a scaffold and provides a bridge to the actin cytoskeleton for membrane trafficking and signaling proteins that bind to its SH3 domain. Binding partners for the SH3 domain of cortactin include dynamin2, N-WASp, MIM, FGD1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212892 [Multi-domain]  Cd Length: 53  Bit Score: 50.11  E-value: 9.17e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVmVKGEWVDEsqtgepGWLGGELKGKTGWFPANYAE 802
Cdd:cd11959      4 ALYDYQAADDDEISFDPDDII-TNIEMIDE------GWWRGVCRGKYGLFPANYVE 52
SH3_DNMBP_C2 cd12141
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
920-967 9.80e-08

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213017 [Multi-domain]  Cd Length: 57  Bit Score: 50.19  E-value: 9.80e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDM-----WWFGEVQGQKGWFPKSYVK 967
Cdd:cd12141      4 AVYTFKARSPNELSVSANQRVRILEFSDLtgnkeWWLAEANGQKGYVPSNYIR 56
SH3_Stac2_C cd11985
C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); ...
1161-1210 1.02e-07

C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac2 contains a single SH3 domain at the C-terminus unlike Stac1 and Stac3, which contain two C-terminal SH3 domains. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212918  Cd Length: 53  Bit Score: 49.95  E-value: 1.02e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11985      3 VALYKFLPQENNDLPLQPGDRVMVVDDSNEDWWKGKSGDRVGFFPANFVQ 52
CEP63 pfam17045
Centrosomal protein of 63 kDa; CEP63 is a family of eukaryotic proteins involved in centriole ...
336-576 1.09e-07

Centrosomal protein of 63 kDa; CEP63 is a family of eukaryotic proteins involved in centriole activity.


Pssm-ID: 465338 [Multi-domain]  Cd Length: 264  Bit Score: 55.21  E-value: 1.09e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  336 EDEQQQLEKKLPVTFEDKKREnFERGNLELEKR----------RQALLEQQRKEQERL-AQLERAEQERKE--RERQEQE 402
Cdd:pfam17045    5 EAELQELMKQIDIMVAHKKSE-WEGQTRALETRldireeellsARNTLERKHKEIGLLrQQLEELEKGKQElvAKYEQQL 83
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  403 RKRQLEL-------EKQLEKQRELERQREEERRKEIERREAAKRELE--RQRQLEWERnrrqellnQRNKEQEDIVVLKA 473
Cdd:pfam17045   84 QKLQEELsklkrsyEKLQRKQLKEAREEAKSREEDRSELSRLNGKLEefRQKSLEWEQ--------QRLQYQQQVASLEA 155
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  474 KKKTLEFELE---------ALNDKKHQLEGKLQDIRcRLTTQRQEIESTNKSRELriaEITHLQQQLQESQQMLGRLIPE 544
Cdd:pfam17045  156 QRKALAEQSSliqsaayqvQLEGRKQCLEASQSEIQ-RLRSKLERAQDSLCAQEL---ELERLRMRVSELGDSNRKLLEE 231
                          250       260       270
                   ....*....|....*....|....*....|...
gi 1034627469  545 KQILNDQLKQVQ-QNSLHRDSLVTLKRALEAKE 576
Cdd:pfam17045  232 QQRLLEELRMSQrQLQVLQNELMELKATLQSQD 264
SH3_ARHGEF9_like cd11828
Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this ...
1012-1057 1.10e-07

Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this family contain a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. They include the Rho guanine nucleotide exchange factors ARHGEF9, ASEF (also called ARHGEF4), ASEF2, and similar proteins. GEFs activate small GTPases by exchanging bound GDP for free GTP. ARHGEF9 specifically activates Cdc42, while both ASEF and ASEF2 can activate Rac1 and Cdc42. ARHGEF9 is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. ASEF plays a role in angiogenesis and cell migration. ASEF2 is important in cell migration and adhesion dynamics. ASEF exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli), leading to the activation of Rac1 or Cdc42. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212762 [Multi-domain]  Cd Length: 53  Bit Score: 50.07  E-value: 1.10e-07
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1012 TYESSEqgdLTFQQGDVILVTK-KDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11828     10 TMDPEE---LGFKAGDVIEVLDmSDKDWWWGSIRDEEGWFPASFVRL 53
SH3_ASPP2 cd11953
Src Homology 3 (SH3) domain of Apoptosis Stimulating of p53 protein 2; ASPP2 is the full ...
1160-1211 1.11e-07

Src Homology 3 (SH3) domain of Apoptosis Stimulating of p53 protein 2; ASPP2 is the full length form of the previously-identified tumor supressor, p53-binding protein 2 (p53BP2). ASPP2 activates the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73). It plays a central role in regulating apoptosis and cell growth; ASPP2-deficient mice show postnatal death. Downregulated expression of ASPP2 is frequently found in breast tumors, lung cancer, and diffuse large B-cell lymphoma where it is correlated with a poor clinical outcome. ASPP2 contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of ASPP2 contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212886 [Multi-domain]  Cd Length: 57  Bit Score: 49.95  E-value: 1.11e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPD---WWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11953      3 VYALWDYEGESDDELSFKEGDCMTILRREDEDeteWWWARLNDKEGYVPRNLLGL 57
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
336-648 1.13e-07

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 56.99  E-value: 1.13e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  336 EDEQQQLEKKLPVTFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQL--ERAEQERkERERQEQERKRQLELEKQL 413
Cdd:TIGR02168  723 ELSRQISALRKDLARLEAEVEQLEERIAQLSKELTELEAEIEELEERLEEAeeELAEAEA-EIEELEAQIEQLKEELKAL 801
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  414 EKQrelerqreeerrkeierREAAKRELERQRQ-LEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNdkkHQL 492
Cdd:TIGR02168  802 REA-----------------LDELRAELTLLNEeAANLRERLESLERRIAATERRLEDLEEQIEELSEDIESLA---AEI 861
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  493 EgklqdircRLTTQRQEIEStnksrelriaEITHlqqqlqesqqmlgrlipekqILNDQLKQVQQNSLHRDSLVTLKRAL 572
Cdd:TIGR02168  862 E--------ELEELIEELES----------ELEA--------------------LLNERASLEEALALLRSELEELSEEL 903
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  573 EAKELARQHLRDQLDEV-EKETRSKLQEIDIfnnqlkELREIHNKQQLQKQKSMEAERLKQK---------EQERKIIEL 642
Cdd:TIGR02168  904 RELESKRSELRRELEELrEKLAQLELRLEGL------EVRIDNLQERLSEEYSLTLEEAEALenkieddeeEARRRLKRL 977

                   ....*.
gi 1034627469  643 EKQKEE 648
Cdd:TIGR02168  978 ENKIKE 983
SH3_PLCgamma cd11825
Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of ...
1084-1134 1.14e-07

Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG) in response to various receptors. Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma catalyzes this reaction in tyrosine kinase-dependent signaling pathways. It is activated and recruited to its substrate at the membrane. Vertebrates contain two forms of PLCgamma, PLCgamma1, which is widely expressed, and PLCgamma2, which is primarily found in haematopoietic cells. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212759 [Multi-domain]  Cd Length: 54  Bit Score: 50.02  E-value: 1.14e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1084 SYTATGPEQLTLAPGQLILIRKKNPGGWWEGELqarGKKRQiGWFPANYVK 1134
Cdd:cd11825      7 DYRAQRPDELSFCKHAIITNVEKEDGGWWRGDY---GGKKQ-KWFPANYVE 53
SH3_GAS7 cd11829
Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the ...
1091-1133 1.16e-07

Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the brain and is required for neurite outgrowth. It may also play a role in the protection and migration of embryonic stem cells. Treatment-related acute myeloid leukemia (AML) has been reported resulting from mixed-lineage leukemia (MLL)-GAS7 translocations as a complication of primary cancer treatment. GAS7 contains an N-terminal SH3 domain, followed by a WW domain, and a central F-BAR domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212763 [Multi-domain]  Cd Length: 52  Bit Score: 49.82  E-value: 1.16e-07
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|...
gi 1034627469 1091 EQLTLAPGQLILIRKKNPGGWWEGElqargKKRQIGWFPANYV 1133
Cdd:cd11829     15 QGLSFEAGELIRVLQAPDGGWWEGE-----KDGLRGWFPASYV 52
SH3_ARHGAP32_33 cd11835
Src homology 3 domain of Rho GTPase-activating proteins 32 and 33, and similar proteins; ...
1166-1209 1.16e-07

Src homology 3 domain of Rho GTPase-activating proteins 32 and 33, and similar proteins; Members of this family contain N-terminal PX and Src Homology 3 (SH3) domains, a central Rho GAP domain, and C-terminal extensions. RhoGAPs (or ARHGAPs) bind to Rho proteins and enhance the hydrolysis rates of bound GTP. ARHGAP32 is also called RICS, PX-RICS, p250GAP, or p200RhoGAP. It is a Rho GTPase-activating protein for Cdc42 and Rac1, and is implicated in the regulation of postsynaptic signaling and neurite outgrowth. PX-RICS, a variant of RICS that contain PX and SH3 domains, is the main isoform expressed during neural development. It is involved in neural functions including axon and dendrite extension, postnatal remodeling, and fine-tuning of neural circuits during early brain development. ARHGAP33, also called sorting nexin 26 or TCGAP (Tc10/CDC42 GTPase-activating protein), is widely expressed in the brain where it is involved in regulating the outgrowth of axons and dendrites and is regulated by the protein tyrosine kinase Fyn. It is translocated to the plasma membrane in adipocytes in response to insulin and may be involved in the regulation of insulin-stimulated glucose transport. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212769 [Multi-domain]  Cd Length: 54  Bit Score: 49.76  E-value: 1.16e-07
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1166 YTAQNDDELAFNKGQIINVLN---KEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11835      8 YTAQAPDELSLEVGDIVSVIDmppPEESTWWRGKKGFQVGFFPSECV 54
SH3_HS1 cd12073
Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 ...
918-968 1.17e-07

Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 (hematopoietic cell-specific Lyn substrate 1), is a cortactin homolog expressed specifically in hematopoietic cells. It is an actin regulatory protein that binds the Arp2/3 complex and stabilizes branched actin filaments. It is required for cell spreading and signaling in lymphocytes. It regulates cytoskeletal remodeling that controls lymphocyte trafficking, and it also affects tissue invasion and infiltration of leukemic B cells. Like cortactin, HS1 contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region binds the Arp2/3 complex and F-actin, while the C-terminal region acts as an adaptor or scaffold that can connect varied proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213006 [Multi-domain]  Cd Length: 55  Bit Score: 49.83  E-value: 1.17e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd12073      3 AVALYDYQGEGDDEISFDPQETITDIEMVDEgWWKGTCHGHRGLFPANYVEL 54
SH3_betaPIX cd12061
Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho ...
919-967 1.18e-07

Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho guanine nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned out of Library)-1, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and plays important roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212994 [Multi-domain]  Cd Length: 54  Bit Score: 50.07  E-value: 1.18e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVK 967
Cdd:cd12061      3 RAKFNFQQTNEDELSFSKGDVIHVTRVEEGgWWEGTHNGRTGWFPSNYVR 52
SH3_Nebulette_C cd11935
C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a ...
1163-1211 1.22e-07

C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a cardiac-specific protein that localizes to the Z-disc. It interacts with tropomyosin and is important in stabilizing actin thin filaments in cardiac muscles. Polymorphisms in the nebulette gene are associated with dilated cardiomyopathy, with some mutations resulting in severe heart failure. Nebulette is a 107kD protein that contains an N-terminal acidic region, multiple nebulin repeats, and a C-terminal SH3 domain. LIM-nebulette, also called Lasp2 (LIM and SH3 domain protein 2), is an alternatively spliced variant of nebulette. Although it shares a gene with nebulette, Lasp2 is not transcribed from a muscle-specific promoter, giving rise to its multiple tissue expression pattern with highest amounts in the brain. It can crosslink actin filaments and it affects cell spreading. Lasp2 is a 34kD protein containing an N-terminal LIM domain, three nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212868 [Multi-domain]  Cd Length: 58  Bit Score: 50.00  E-value: 1.22e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEV--NGQVGLFPSNYVKL 1211
Cdd:cd11935      6 MYDYSAQDEDEVSFRDGDYIVNVQPIDEGWMYGTVqrTGRTGMLPANYIEF 56
C2A_Tricalbin-like cd04044
C2 domain first repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
1595-1718 1.24e-07

C2 domain first repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-II topology.


Pssm-ID: 176009 [Multi-domain]  Cd Length: 124  Bit Score: 52.17  E-value: 1.24e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1595 IGRLMVNVVEGIELKPCRSHGKS-NPYCEVTMGSQCHI--TKTIQDTLNPKWNSNcQFFIRDLEQEVLCITVFERDQFSP 1671
Cdd:cd04044      1 IGVLAVTIKSARGLKGSDIIGGTvDPYVTFSISNRRELarTKVKKDTSNPVWNET-KYILVNSLTEPLNLTVYDFNDKRK 79
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1672 DDFLGRTEIRVADIkKDQGSKGPVTKCLLLHEVPTGEIvvRLDLQLF 1718
Cdd:cd04044     80 DKLIGTAEFDLSSL-LQNPEQENLTKNLLRNGKPVGEL--NYDLRFF 123
SH3_SH3RF2_3 cd11784
Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
1161-1209 1.29e-07

Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212718  Cd Length: 55  Bit Score: 49.78  E-value: 1.29e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGE--VNGQVGLFPSNYV 1209
Cdd:cd11784      3 VALHSYSAHRPEELELQKGEGVRVLGKFQEGWLRGLslVTGRVGIFPSNYV 53
SH3_Bzz1_2 cd11778
Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP ...
744-800 1.34e-07

Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP/Las17-interacting protein involved in endocytosis and trafficking to the vacuole. It physically interacts with type I myosins and functions in the early steps of endocytosis. Together with other proteins, it induces membrane scission in yeast. Bzz1 contains an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), a central coiled-coil, and two C-terminal SH3 domains. This model represents the second C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212712 [Multi-domain]  Cd Length: 51  Bit Score: 49.42  E-value: 1.34e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVkgewvdesQTGEP--GWLGGELKGKTGWFPANY 800
Cdd:cd11778      1 YVEALYDYEAQGDDEISIRVGDRIAV--------IRGDDgsGWTYGEINGVKGLFPTSY 51
SH3_GRAP2_C cd11950
C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
917-967 1.37e-07

C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also has roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRAP2 binds to different motifs found in substrate peptides including the typical PxxP motif in hematopoietic progenitor kinase 1 (HPK1), the RxxK motif in SLP-76 and HPK1, and the RxxxxK motif in phosphatase-like protein HD-PTP. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212883 [Multi-domain]  Cd Length: 53  Bit Score: 49.82  E-value: 1.37e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQGQKGWFPKSYVK 967
Cdd:cd11950      1 QVRALYDFEALEDDELGFNSGDVIEVLDSSNpSWWKGRLHGKLGLFPANYVA 52
SH3_Intersectin2_1 cd11988
First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1163-1210 1.37e-07

First Src homology 3 domain (or SH3A) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN2 is expected to bind many protein partners, similar to ITSN1 which has been shown to bind Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212921 [Multi-domain]  Cd Length: 57  Bit Score: 49.87  E-value: 1.37e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKE--DPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11988      7 LYPFEARNHDEMSFNAGDIIQVDEKTvgEPGWLYGSFQGNFGWFPCNYVE 56
sbcc TIGR00618
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
370-686 1.47e-07

exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 129705 [Multi-domain]  Cd Length: 1042  Bit Score: 56.52  E-value: 1.47e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  370 QALLEQQRKEQERLAQLERAEQ------ERKERERQEQERKRQLELEKQLEKQ--RELERQREEERRKEIERREAAKREL 441
Cdd:TIGR00618  156 QFLKAKSKEKKELLMNLFPLDQytqlalMEFAKKKSLHGKAELLTLRSQLLTLctPCMPDTYHERKQVLEKELKHLREAL 235
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  442 ERQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLE-----GKLQDIRCRLTTQRQEIESTNKS 516
Cdd:TIGR00618  236 QQTQQSHAYLTQKREAQEEQLKKQQLLKQLRARIEELRAQEAVLEETQERINrarkaAPLAAHIKAVTQIEQQAQRIHTE 315
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  517 RELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDSLVTLKRALEAKELARQHLR---DQLDEVEKET 593
Cdd:TIGR00618  316 LQSKMRSRAKLLMKRAAHVKQQSSIEEQRRLLQTLHSQEIHIRDAHEVATSIREISCQQHTLTQHIHtlqQQKTTLTQKL 395
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  594 RSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQER---------KIIELEKQKEEAQRRAQERDKQWLEHV 664
Cdd:TIGR00618  396 QSLCKELDILQREQATIDTRTSAFRDLQGQLAHAKKQQELQQRYaelcaaaitCTAQCEKLEKIHLQESAQSLKEREQQL 475
                          330       340
                   ....*....|....*....|...
gi 1034627469  665 QQ-EDEHQRPRKLHEEEKLKREE 686
Cdd:TIGR00618  476 QTkEQIHLQETRKKAVVLARLLE 498
SH3_EFS cd12003
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, ...
1163-1211 1.66e-07

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, Embryonal Fyn-associated Substrate; EFS is also called HEFS, CASS3 (Cas scaffolding protein family member 3) or SIN (Src-interacting protein). It was identified based on interactions with the Src kinases, Fyn and Yes. It plays a role in thymocyte development and acts as a negative regulator of T cell proliferation. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212936  Cd Length: 62  Bit Score: 49.89  E-value: 1.66e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPD---WWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd12003      6 LYDNAAESPEELSFRRGDVLMVLKREHGSlpgWWLCSLHGQQGIAPANRLRL 57
SH3_SNX9_like cd11763
Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox ...
744-802 1.68e-07

Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. This subfamily consists of SH3 domain containing SNXs including SNX9, SNX18, SNX33, and similar proteins. SNX9 is localized to plasma membrane endocytic sites and acts primarily in clathrin-mediated endocytosis, while SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212697 [Multi-domain]  Cd Length: 55  Bit Score: 49.25  E-value: 1.68e-07
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKgewvdeSQTGEPGWLGGE-LKGKTGWFPANYAE 802
Cdd:cd11763      1 KVRALYDFDSQPSGELSLRAGEVLTIT------RQDVGDGWLEGRnSRGEVGLFPSSYVE 54
SH3_CD2AP-like_2 cd11874
Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This ...
1009-1057 1.68e-07

Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This subfamily is composed of the second SH3 domain (SH3B) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3B of both proteins have been shown to bind to Cbl. In the case of CD2AP, its SH3B binds to Cbl at a site distinct from the c-Cbl/SH3A binding site. The CIN85 SH3B also binds ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212807 [Multi-domain]  Cd Length: 53  Bit Score: 49.25  E-value: 1.68e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11874      4 VLFSYTPQNEDELELKVGDTIEVLGEVEEgWWEGKLNGKVGVFPSNFVKE 53
SH3_alphaPIX cd12060
Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho ...
1084-1134 1.73e-07

Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho guanine nucleotide exchange factor 6 (ARHGEF6) or Cool (Cloned out of Library)-2, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and is localized in dendritic spines where it regulates spine morphogenesis. It controls dendritic length and spine density in the hippocampus. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212993  Cd Length: 58  Bit Score: 49.62  E-value: 1.73e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1084 SYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGkkrqiGWFPANYVK 1134
Cdd:cd12060      9 NFKQTNEDELSVCKGDIIYVTRVEEGGWWEGTLNGKT-----GWFPSNYVR 54
SH3_betaPIX cd12061
Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho ...
1084-1134 1.74e-07

Src Homology 3 domain of beta-Pak Interactive eXchange factor; Beta-PIX, also called Rho guanine nucleotide exchange factor 7 (ARHGEF7) or Cool (Cloned out of Library)-1, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and plays important roles in regulating neuroendocrine exocytosis, focal adhesion maturation, cell migration, synaptic vesicle localization, and insulin secretion. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212994 [Multi-domain]  Cd Length: 54  Bit Score: 49.30  E-value: 1.74e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1084 SYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARgkkrqIGWFPANYVK 1134
Cdd:cd12061      7 NFQQTNEDELSFSKGDVIHVTRVEEGGWWEGTHNGR-----TGWFPSNYVR 52
SH3_D21-like cd12142
Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; ...
919-966 1.75e-07

Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; N-terminal SH3 domain of the uncharacterized protein SH3 domain-containing protein 21, and similar uncharacterized domains, it belongs to the CD2AP-like_3 subfamily of proteins. The CD2AP-like_3 subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213018 [Multi-domain]  Cd Length: 55  Bit Score: 49.39  E-value: 1.75e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQ---DMWWFGEVQGQKGWFPKSYV 966
Cdd:cd12142      3 RVLFDYNPVAPDELALKKGDVIEVISKEtedEGWWEGELNGRRGFFPDNFV 53
SH3_ASAP2 cd11966
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
1159-1209 1.79e-07

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing protein 2; ASAP2 is also called DDEF2 (Development and Differentiation Enhancing Factor 2), AMAP2, centaurin beta-3, or PAG3. It mediates the functions of Arf GTPases vial dual mechanisms: it exhibits GTPase activating protein (GAP) activity towards class I (Arf1) and II (Arf5) Arfs; and it binds class III Arfs (GTP-Arf6) stably without GAP activity. It binds paxillin and is implicated in Fcgamma receptor-mediated phagocytosis in macrophages and in cell migration. ASAP2 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212899  Cd Length: 56  Bit Score: 49.57  E-value: 1.79e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQV---GLFPSNYV 1209
Cdd:cd11966      1 RVKALYNCVADNPDELTFSEGEIIIVDGEEDKEWWIGHIDGEPtrrGAFPVSFV 54
SH3_ephexin1_like cd11793
Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange ...
747-802 1.84e-07

Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange factors; Members of this family contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and C-terminal SH3 domains. They include the Rho guanine nucleotide exchange factors ARHGEF5, ARHGEF16, ARHGEF19, ARHGEF26, ARHGEF27 (also called ephexin-1), and similar proteins, and are also called ephexins because they interact directly with ephrin A receptors. GEFs interact with Rho GTPases via their DH domains to catalyze nucleotide exchange by stabilizing the nucleotide-free GTPase intermediate. They play important roles in neuronal development. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212727 [Multi-domain]  Cd Length: 55  Bit Score: 49.26  E-value: 1.84e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGE--LKGKTGWFPANYAE 802
Cdd:cd11793      4 CVHAYTAQQPDELTLEEGDVVNV-------LRKMPDGWYEGErlRDGERGWFPSSYTE 54
SH3_1 pfam00018
SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal ...
1080-1130 2.04e-07

SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 394975 [Multi-domain]  Cd Length: 47  Bit Score: 48.74  E-value: 2.04e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELqargKKRQIGWFPA 1130
Cdd:pfam00018    1 VALYDYTAQEPDELSFKKGDIIIVLEKSEDGWWKGRN----KGGKEGLIPS 47
SH3_Bzz1_2 cd11778
Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP ...
919-965 2.11e-07

Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP/Las17-interacting protein involved in endocytosis and trafficking to the vacuole. It physically interacts with type I myosins and functions in the early steps of endocytosis. Together with other proteins, it induces membrane scission in yeast. Bzz1 contains an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), a central coiled-coil, and two C-terminal SH3 domains. This model represents the second C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212712 [Multi-domain]  Cd Length: 51  Bit Score: 49.03  E-value: 2.11e-07
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQDM--WWFGEVQGQKGWFPKSY 965
Cdd:cd11778      3 EALYDYEAQGDDEISIRVGDRIAVIRGDDGsgWTYGEINGVKGLFPTSY 51
SH3_PLCgamma cd11825
Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of ...
1009-1055 2.19e-07

Src homology 3 domain of Phospholipase C (PLC) gamma; PLC catalyzes the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG) in response to various receptors. Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma catalyzes this reaction in tyrosine kinase-dependent signaling pathways. It is activated and recruited to its substrate at the membrane. Vertebrates contain two forms of PLCgamma, PLCgamma1, which is widely expressed, and PLCgamma2, which is primarily found in haematopoietic cells. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212759 [Multi-domain]  Cd Length: 54  Bit Score: 49.25  E-value: 2.19e-07
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGDKA-GVFPSNYV 1055
Cdd:cd11825      4 ALYDYRAQRPDELSFCKHAIITnVEKEDGGWWRGDYGGKKqKWFPANYV 52
SH3_Intersectin_4 cd11839
Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor ...
746-803 2.19e-07

Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212773 [Multi-domain]  Cd Length: 58  Bit Score: 49.26  E-value: 2.19e-07
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gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKgewvdesQTGEPGWLGGELKGK-----TGWFPANYAEK 803
Cdd:cd11839      3 QVIAPFTATAENQLSLAVGQLVLVR-------KKSPSGWWEGELQARgkkrqIGWFPANYVKL 58
SH3_Src cd12008
Src homology 3 domain of Src Protein Tyrosine Kinase; Src (or c-Src) is a cytoplasmic (or ...
1161-1209 2.25e-07

Src homology 3 domain of Src Protein Tyrosine Kinase; Src (or c-Src) is a cytoplasmic (or non-receptor) PTK and is the vertebrate homolog of the oncogenic protein (v-Src) from Rous sarcoma virus. Together with other Src subfamily proteins, it is involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. Src also play a role in regulating cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Elevated levels of Src kinase activity have been reported in a variety of human cancers. Several inhibitors of Src have been developed as anti-cancer drugs. Src is also implicated in acute inflammatory responses and osteoclast function. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212941 [Multi-domain]  Cd Length: 56  Bit Score: 49.34  E-value: 2.25e-07
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gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGE--VNGQVGLFPSNYV 1209
Cdd:cd12008      3 VALYDYESRTETDLSFKKGERLQIVNNTEGDWWLAHslTTGQTGYIPSNYV 53
SH3_BTK cd11906
Src Homology 3 domain of Bruton's tyrosine kinase; BTK is a cytoplasmic (or nonreceptor) tyr ...
1160-1209 2.28e-07

Src Homology 3 domain of Bruton's tyrosine kinase; BTK is a cytoplasmic (or nonreceptor) tyr kinase containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. It also contains an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation, and the Tec homology (TH) domain with proline-rich and zinc-binding regions. Btk is expressed in B-cells, and a variety of myeloid cells including mast cells, platelets, neutrophils, and dendrictic cells. It interacts with a variety of partners, from cytosolic proteins to nuclear transcription factors, suggesting a diversity of functions. Stimulation of a diverse array of cell surface receptors, including antigen engagement of the B-cell receptor (BCR), leads to PH-mediated membrane translocation of Btk and subsequent phosphorylation by Src kinase and activation. Btk plays an important role in the life cycle of B-cells including their development, differentiation, proliferation, survival, and apoptosis. Mutations in Btk cause the primary immunodeficiency disease, X-linked agammaglobulinaemia (XLA) in humans. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212839 [Multi-domain]  Cd Length: 55  Bit Score: 49.05  E-value: 2.28e-07
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gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKG-EVNGQVGLFPSNYV 1209
Cdd:cd11906      3 VVALYDYTPMNAQDLQLRKGEEYVILEESNLPWWRArDKNGREGYIPSNYV 53
SH3_ARHGEF37_C2 cd11941
Second C-terminal Src homology 3 domain of Rho guanine nucleotide exchange factor 37; ARHGEF37 ...
1159-1209 2.31e-07

Second C-terminal Src homology 3 domain of Rho guanine nucleotide exchange factor 37; ARHGEF37 contains a RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. Its specific function is unknown. Its domain architecture is similar to the C-terminal half of DNMBP or Tuba, a cdc42-specific GEF that provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics, and plays an important role in regulating cell junction configuration. GEFs activate small GTPases by exchanging bound GDP for free GTP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212874  Cd Length: 57  Bit Score: 49.14  E-value: 2.31e-07
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gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKED----PDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11941      1 QVVAAYPFTARSKHEVSLQAGQPVTVLEPHDkkgsPEWSLVEVNGQRGYVPSSYL 55
SH3_ASEF2 cd11974
Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor 2; ASEF2, also ...
918-968 2.32e-07

Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor 2; ASEF2, also called Spermatogenesis-associated protein 13 (SPATA13), is a GEF that localizes with actin at the leading edge of cells and is important in cell migration and adhesion dynamics. GEFs activate small GTPases by exchanging bound GDP for free GTP. ASEF2 can activate both Rac 1 and Cdc42, but only Rac1 activation is necessary for increased cell migration and adhesion turnover. Together with APC (adenomatous polyposis coli) and Neurabin2, a scaffold protein that binds F-actin, it is involved in regulating HGF-induced cell migration. ASEF2 contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212907  Cd Length: 54  Bit Score: 48.91  E-value: 2.32e-07
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gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11974      3 AEALWDHVTMDDQELAFKAGDVIRVLEASNKdWWWGRNEDREAWFPASFVRL 54
C2_Rab11-FIP_classI cd08682
C2 domain found in Rab11-family interacting proteins (FIP) class I; Rab GTPases recruit ...
1600-1692 2.36e-07

C2 domain found in Rab11-family interacting proteins (FIP) class I; Rab GTPases recruit various effector proteins to organelles and vesicles. Rab11-family interacting proteins (FIPs) are involved in mediating the role of Rab11. FIPs can be divided into three classes: class I FIPs (Rip11a, Rip11b, RCP, and FIP2) which contain a C2 domain after N-terminus of the protein, class II FIPs (FIP3 and FIP4) which contain two EF-hands and a proline rich region, and class III FIPs (FIP1) which exhibits no homology to known protein domains. All FIP proteins contain a highly conserved, 20-amino acid motif at the C-terminus of the protein, known as Rab11/25 binding domain (RBD). Class I FIPs are thought to bind to endocytic membranes via their C2 domain, which interacts directly with phospholipids. Class II FIPs do not have any membrane binding domains leaving much to speculate about the mechanism involving FIP3 and FIP4 interactions with endocytic membranes. The members in this CD are class I FIPs. The exact function of the Rab11 and FIP interaction is unknown, but there is speculation that it involves the role of forming a targeting complex that recruits a group of proteins involved in membrane transport to organelles. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176064 [Multi-domain]  Cd Length: 126  Bit Score: 51.30  E-value: 2.36e-07
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gi 1034627469 1600 VNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDL-----EQEVLCITVFERDQFSPDDF 1674
Cdd:cd08682      3 VTVLQARGLLCKGKSGTNDAYVIIQLGKEKYSTSVKEKTTSPVWKEECSFELPGLlsgngNRATLQLTVMHRNLLGLDKF 82
                           90
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gi 1034627469 1675 LGRTEIRVADIKKDQGSK 1692
Cdd:cd08682     83 LGQVSIPLNDLDEDKGRR 100
SH3_MLK cd11876
Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), ...
747-800 2.50e-07

Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Mammals have four MLKs (MLK1-4), mostly conserved in vertebrates, which contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212809 [Multi-domain]  Cd Length: 58  Bit Score: 49.05  E-value: 2.50e-07
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gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKGEwvDESQTGEPGWLGGELKGKTGWFPANY 800
Cdd:cd11876      4 ALFDYDARGEDELTLRRGQPVEVLSK--DAAVSGDEGWWTGKIGDKVGIFPSNY 55
SH3_SKAP2 cd12045
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 2; SKAP2, also called ...
1162-1209 2.55e-07

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 2; SKAP2, also called SKAP55-Related (SKAP55R) or SKAP55 homolog (SKAP-HOM or SKAP55-HOM), is an immune cell-specific adaptor protein that plays an important role in adhesion and migration of B-cells and macrophages. Binding partners include ADAP (adhesion and degranulation-promoting adaptor protein), YopH, SHPS1, and HPK1. SKAP2 has also been identified as a substrate for lymphoid-specific tyrosine phosphatase (Lyp), which has been implicated in a wide variety of autoimmune diseases. It contains a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. Like SKAP1, SKAP2 is expected to bind primarily to a proline-rich region of ADAP through its SH3 domain; its degradation may be regulated by ADAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212978  Cd Length: 53  Bit Score: 48.74  E-value: 2.55e-07
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gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKEDP--DWWKGEVNGQVGLFPSNYV 1209
Cdd:cd12045      4 GLWDCTGDQPDELSFKRGDTIYILSKEYNrfGWWVGEMKGTIGLVPKAYI 53
C2A_Munc13-like cd08676
C2 domain first repeat in Munc13 (mammalian uncoordinated)-like proteins; C2-like domains are ...
1630-1688 2.59e-07

C2 domain first repeat in Munc13 (mammalian uncoordinated)-like proteins; C2-like domains are thought to be involved in phospholipid binding in a Ca2+ independent manner in both Unc13 and Munc13. Caenorabditis elegans Unc13 has a central domain with sequence similarity to PKC, which includes C1 and C2-related domains. Unc13 binds phorbol esters and DAG with high affinity in a phospholipid manner. Mutations in Unc13 results in abnormal neuronal connections and impairment in cholinergic neurotransmission in the nematode. Munc13 is the mammalian homolog which are expressed in the brain. There are 3 isoforms (Munc13-1, -2, -3) and are thought to play a role in neurotransmitter release and are hypothesized to be high-affinity receptors for phorbol esters. Unc13 and Munc13 contain both C1 and C2 domains. There are two C2 related domains present, one central and one at the carboxyl end. Munc13-1 contains a third C2-like domain. Munc13 interacts with syntaxin, synaptobrevin, and synaptotagmin suggesting a role for these as scaffolding proteins. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176058 [Multi-domain]  Cd Length: 153  Bit Score: 51.99  E-value: 2.59e-07
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gi 1034627469 1630 HITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDqfspDDFLGRTEIRVADIKKD 1688
Cdd:cd08676     91 KVTEVKPQTLNPVWNETFRFEVEDVSNDQLHLDIWDHD----DDFLGCVNIPLKDLPSC 145
C2B_Tricalbin-like cd04052
C2 domain second repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
1615-1685 2.62e-07

C2 domain second repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176017 [Multi-domain]  Cd Length: 111  Bit Score: 50.68  E-value: 2.62e-07
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gi 1034627469 1615 GKSNPYCEVTMGSQ-CHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFErDQFSPDDFLGRTEIRVADI 1685
Cdd:cd04052     11 GLLSPYAELYLNGKlVYTTRVKKKTNNPSWNASTEFLVTDRRKSRVTVVVKD-DRDRHDPVLGSVSISLNDL 81
SH3_PLCgamma1 cd11970
Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is ...
919-970 2.67e-07

Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is essential in growth and development. It is activated by the TrkA receptor tyrosine kinase and functions as a key regulator of cell differentiation. It is also the predominant PLCgamma in T cells and is required for T cell and NK cell function. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212903  Cd Length: 60  Bit Score: 49.22  E-value: 2.67e-07
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gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQGQKG-WFPKSYVKLIS 970
Cdd:cd11970      7 KALFDYKAQREDELTFTKNAIIQNVEKQEgGWWRGDYGGKKQlWFPSNYVEEIS 60
SH3_HS1 cd12073
Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 ...
1008-1057 2.77e-07

Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 (hematopoietic cell-specific Lyn substrate 1), is a cortactin homolog expressed specifically in hematopoietic cells. It is an actin regulatory protein that binds the Arp2/3 complex and stabilizes branched actin filaments. It is required for cell spreading and signaling in lymphocytes. It regulates cytoskeletal remodeling that controls lymphocyte trafficking, and it also affects tissue invasion and infiltration of leukemic B cells. Like cortactin, HS1 contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region binds the Arp2/3 complex and F-actin, while the C-terminal region acts as an adaptor or scaffold that can connect varied proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213006 [Multi-domain]  Cd Length: 55  Bit Score: 48.67  E-value: 2.77e-07
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gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd12073      4 VALYDYQGEGDDEISFDPQETITdIEMVDEGWWKGTCHGHRGLFPANYVEL 54
MAD pfam05557
Mitotic checkpoint protein; This family consists of several eukaryotic mitotic checkpoint ...
338-662 2.81e-07

Mitotic checkpoint protein; This family consists of several eukaryotic mitotic checkpoint (Mitotic arrest deficient or MAD) proteins. The mitotic spindle checkpoint monitors proper attachment of the bipolar spindle to the kinetochores of aligned sister chromatids and causes a cell cycle arrest in prometaphase when failures occur. Multiple components of the mitotic spindle checkpoint have been identified in yeast and higher eukaryotes. In S.cerevisiae, the existence of a Mad1-dependent complex containing Mad2, Mad3, Bub3 and Cdc20 has been demonstrated.


Pssm-ID: 461677 [Multi-domain]  Cd Length: 660  Bit Score: 55.52  E-value: 2.81e-07
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gi 1034627469  338 EQQQLEKKLPVTFEDKKRENFE--RGNLELEKRRQALLEQQRKE-------QERLAQLERAEQERKERERQEQERKRQL- 407
Cdd:pfam05557    3 ELIESKARLSQLQNEKKQMELEhkRARIELEKKASALKRQLDREsdrnqelQKRIRLLEKREAEAEEALREQAELNRLKk 82
                           90       100       110       120       130       140       150       160
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gi 1034627469  408 ----ELEKQLEKQRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKEQedivvlKAKKKTLEFELE 483
Cdd:pfam05557   83 kyleALNKKLNEKESQLADAREVISCLKNELSELRRQIQRAELELQSTNSELEELQERLDLL------KAKASEAEQLRQ 156
                          170       180       190       200       210       220       230       240
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gi 1034627469  484 ALNDKKHQL---EGKLQDIRCRLTTQRQ--EIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQL----KQ 554
Cdd:pfam05557  157 NLEKQQSSLaeaEQRIKELEFEIQSQEQdsEIVKNSKSELARIPELEKELERLREHNKHLNENIENKLLLKEEVedlkRK 236
                          250       260       270       280       290       300       310       320
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gi 1034627469  555 VQQNSLHRDSLVTLKRALEA--------KELARQH---------LRDQLDEVEKETRSKLQEIDIFNNQLKELReihnKQ 617
Cdd:pfam05557  237 LEREEKYREEAATLELEKEKleqelqswVKLAQDTglnlrspedLSRRIEQLQQREIVLKEENSSLTSSARQLE----KA 312
                          330       340       350       360       370
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gi 1034627469  618 QLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRR----AQERD--KQWLE 662
Cdd:pfam05557  313 RRELEQELAQYLKKIEDLNKKLKRHKALVRRLQRRvlllTKERDgyRAILE 363
SH3_p47phox_like cd11856
Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This ...
745-803 2.88e-07

Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This family is composed of the tandem SH3 domains of p47phox subunit of NADPH oxidase and Nox Organizing protein 1 (NoxO1), the four SH3 domains of Tks4 (Tyr kinase substrate with four SH3 domains), the five SH3 domains of Tks5, the SH3 domain of obscurin, Myosin-I, and similar domains. Most members of this group also contain Phox homology (PX) domains, except for obscurin and Myosin-I. p47phox and NoxO1 are regulators of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) and nonphagocytic NADPH oxidase Nox1, respectively. They play roles in the activation of their respective NADPH oxidase, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Obscurin is a giant muscle protein that plays important roles in the organization and assembly of the myofibril and the sarcoplasmic reticulum. Type I myosins (Myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212790 [Multi-domain]  Cd Length: 53  Bit Score: 48.79  E-value: 2.88e-07
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gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11856      2 YVAIADYEAQGDDEISLQEGEVVEV-------LEKNDSGWWYVRKGDKEGWVPASYLEP 53
SH3_CD2AP-like_3 cd11875
Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This ...
917-968 2.97e-07

Third Src Homology 3 domain (SH3C) of CD2-associated protein and similar proteins; This subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212808 [Multi-domain]  Cd Length: 55  Bit Score: 48.89  E-value: 2.97e-07
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gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVL--EQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11875      1 KARVLFDYEAENEDELTLREGDIVTILskDCEDKgWWKGELNGKRGVFPDNFVEP 55
SH3_VAV3_2 cd11978
C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed ...
747-803 2.99e-07

C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed and functions as a phosphorylation-dependent guanine nucleotide exchange factor (GEF) for RhoA, RhoG, and Rac1. It has been implicated to function in the hematopoietic, bone, cerebellar, and cardiovascular systems. VAV3 is essential in axon guidance in neurons that control blood pressure and respiration. It is overexpressed in prostate cancer cells and it plays a role in regulating androgen receptor transcriptional activity. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212911 [Multi-domain]  Cd Length: 56  Bit Score: 48.87  E-value: 2.99e-07
                           10        20        30        40        50
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gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKgewvdeSQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11978      5 ARYDFCARDMRELSLLKGDVVKIY------TKMSTNGWWRGEVNGRVGWFPSTYVEE 55
SH3_PSTPIP1 cd11824
Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, ...
918-968 3.01e-07

Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, also called CD2 Binding Protein 1 (CD2BP1), is mainly expressed in hematopoietic cells. It is a binding partner of the cell surface receptor CD2 and PTP-PEST, a tyrosine phosphatase which functions in cell motility and Rac1 regulation. It also plays a role in the activation of the Wiskott-Aldrich syndrome protein (WASP), which couples actin rearrangement and T cell activation. Mutations in the gene encoding PSTPIP1 cause the autoinflammatory disorder known as PAPA (pyogenic sterile arthritis, pyoderma gangrenosum, and acne) syndrome. PSTPIP1 contains an N-terminal F-BAR domain, PEST motifs, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212758 [Multi-domain]  Cd Length: 53  Bit Score: 48.52  E-value: 3.01e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11824      2 YSVLYDYTAQEDDELSISKGDVVAVIEKgEDGWWTVERNGQKGLVPGTYLEK 53
SH3_Sorbs_1 cd11781
First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
746-802 3.05e-07

First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212715 [Multi-domain]  Cd Length: 53  Bit Score: 48.49  E-value: 3.05e-07
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gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwVDESqtgepgWLGGELKGKTGWFPANYAE 802
Cdd:cd11781      3 RALYPFKAQSAKELSLKKGDIIYIRRQ-IDKN------WYEGEHNGRVGIFPASYVE 52
SH3_Eve1_5 cd11818
Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
917-965 3.36e-07

Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212752 [Multi-domain]  Cd Length: 50  Bit Score: 48.63  E-value: 3.36e-07
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gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSY 965
Cdd:cd11818      1 KARALYDFTGENEDELSFKAGDIITELESIDEEWMsGELRGKSGIFPKNF 50
C2_fungal_Inn1p-like cd08681
C2 domain found in fungal Ingression 1 (Inn1) proteins; Saccharomyces cerevisiae Inn1 ...
1596-1687 3.45e-07

C2 domain found in fungal Ingression 1 (Inn1) proteins; Saccharomyces cerevisiae Inn1 associates with the contractile actomyosin ring at the end of mitosis and is needed for cytokinesis. The C2 domain of Inn1, located at the N-terminus, is required for ingression of the plasma membrane. The C-terminus is relatively unstructured and contains eight PXXP motifs that are thought to mediate interaction of Inn1 with other proteins with SH3 domains in the cytokinesis proteins Hof1 (an F-BAR protein) and Cyk3 (whose overexpression can restore primary septum formation in Inn1Delta cells) as well as recruiting Inn1 to the bud-neck by binding to Cyk3. Inn1 and Cyk3 appear to cooperate in activating chitin synthase Chs2 for primary septum formation, which allows coordination of actomyosin ring contraction with ingression of the cleavage furrow. It is thought that the C2 domain of Inn1 helps to preserve the link between the actomyosin ring and the plasma membrane, contributing both to membrane ingression, as well as to stability of the contracting ring. Additionally, Inn1 might induce curvature of the plasma membrane adjacent to the contracting ring, thereby promoting ingression of the membrane. It has been shown that the C2 domain of human synaptotagmin induces curvature in target membranes and thereby contributes to fusion of these membranes with synaptic vesicles. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176063 [Multi-domain]  Cd Length: 118  Bit Score: 50.71  E-value: 3.45e-07
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gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKTI----QdtlNPKWNSNCQFFIRDLEQEVLCITVFErDQFSP 1671
Cdd:cd08681      1 GTLVVVVLKARNLPNKRKLDKQDPYCVLRIGGVTKKTKTDfrggQ---HPEWDEELRFEITEDKKPILKVAVFD-DDKRK 76
                           90
                   ....*....|....*.
gi 1034627469 1672 DDFLGRTEIrvaDIKK 1687
Cdd:cd08681     77 PDLIGDTEV---DLSP 89
SH3_Abp1_eu cd11960
Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like ...
1009-1057 3.54e-07

Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like protein, is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a helical domain, and a C-terminal SH3 domain. Mammalian Abp1, unlike yeast Abp1, does not contain an acidic domain that interacts with the Arp2/3 complex. It regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. Abp1 deficiency causes abnormal organ structure and function of the spleen, heart, and lung of mice. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212893 [Multi-domain]  Cd Length: 54  Bit Score: 48.55  E-value: 3.54e-07
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGD-KAGVFPSNYVRL 1057
Cdd:cd11960      4 ALYDYQAADDTEISFDPGDIITdIEQIDEGWWRGTGPDgTYGLFPANYVEL 54
SH3_SH3RF3_1 cd11928
First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
919-968 3.64e-07

First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212861  Cd Length: 54  Bit Score: 48.38  E-value: 3.64e-07
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gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11928      4 KALYSYEGKEPGDLKFNKGDIIILRRKVDeNWYHGELNGCHGFLPASYIQC 54
SH3_Intersectin_3 cd11838
Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor ...
744-803 3.97e-07

Third Src homology 3 domain (or SH3C) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. The SH3C of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212772 [Multi-domain]  Cd Length: 52  Bit Score: 48.18  E-value: 3.97e-07
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gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKgewvdeSQTGEpgWLGGELKGKTGWFPANYAEK 803
Cdd:cd11838      1 EYIALYPYESNEPGDLTFNAGDVILVT------KKDGE--WWTGTIGDRTGIFPSNYVRP 52
COG4372 COG4372
Uncharacterized protein, contains DUF3084 domain [Function unknown];
453-680 4.17e-07

Uncharacterized protein, contains DUF3084 domain [Function unknown];


Pssm-ID: 443500 [Multi-domain]  Cd Length: 370  Bit Score: 54.14  E-value: 4.17e-07
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gi 1034627469  453 RRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQ 532
Cdd:COG4372     11 ARLSLFGLRPKTGILIAALSEQLRKALFELDKLQEELEQLREELEQAREELEQLEEELEQARSELEQLEEELEELNEQLQ 90
                           90       100       110       120       130       140       150       160
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gi 1034627469  533 ESQQMLGRLIPEKQILNDQLKQVQQnslhrdSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELRE 612
Cdd:COG4372     91 AAQAELAQAQEELESLQEEAEELQE------ELEELQKERQDLEQQRKQLEAQIAELQSEIAEREEELKELEEQLESLQE 164
                          170       180       190       200       210       220
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gi 1034627469  613 IHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEE 680
Cdd:COG4372    165 ELAALEQELQALSEAEAEQALDELLKEANRNAEKEEELAEAEKLIESLPRELAEELLEAKDSLEAKLG 232
SH3_Abp1_eu cd11960
Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like ...
918-968 4.23e-07

Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like protein, is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a helical domain, and a C-terminal SH3 domain. Mammalian Abp1, unlike yeast Abp1, does not contain an acidic domain that interacts with the Arp2/3 complex. It regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. Abp1 deficiency causes abnormal organ structure and function of the spleen, heart, and lung of mice. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212893 [Multi-domain]  Cd Length: 54  Bit Score: 48.16  E-value: 4.23e-07
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gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQ-GQKGWFPKSYVKL 968
Cdd:cd11960      2 ARALYDYQAADDTEISFDPGDIITDIEQIDEgWWRGTGPdGTYGLFPANYVEL 54
SH3_Cortactin_like cd11819
Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, ...
1079-1135 4.27e-07

Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, Abp1 (actin-binding protein 1), hematopoietic lineage cell-specific protein 1 (HS1), and similar proteins. These proteins are involved in regulating actin dynamics through direct or indirect interaction with the Arp2/3 complex, which is required to initiate actin polymerization. They all contain at least one C-terminal SH3 domain. Cortactin and HS1 bind Arp2/3 and actin through an N-terminal region that contains an acidic domain and several copies of a repeat domain found in cortactin and HS1. Abp1 binds actin via an N-terminal actin-depolymerizing factor (ADF) homology domain. Yeast Abp1 binds Arp2/3 directly through two acidic domains. Mammalian Abp1 does not directly interact with Arp2/3; instead, it regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. The C-terminal region of these proteins acts as an adaptor or scaffold that can connect membrane trafficking and signaling proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212753 [Multi-domain]  Cd Length: 54  Bit Score: 48.08  E-value: 4.27e-07
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gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGElqarGKKRQIGWFPANYVKL 1135
Cdd:cd11819      2 AKALYDYQAAEDNEISFVEGDIITQIEQIDEGWWLGV----NAKGQKGLFPANYVEL 54
SH3_VAV1_2 cd11976
C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly ...
918-967 4.28e-07

C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly in the hematopoietic system and it plays an important role in the development and activation of B and T cells. It is activated by tyrosine phosphorylation to function as a guanine nucleotide exchange factor (GEF) for Rho GTPases following cell surface receptor activation, triggering various effects such as cytoskeletal reorganization, transcription regulation, cell cycle progression, and calcium mobilization. It also serves as a scaffold protein and has been shown to interact with Ku70, Socs1, Janus kinase 2, SIAH2, S100B, Abl gene, ZAP-70, SLP76, and Syk, among others. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The C-terminal SH3 domain of Vav1 interacts with a wide variety of proteins including cytoskeletal regulators (zyxin), RNA-binding proteins (Sam68), transcriptional regulators, viral proteins, and dynamin 2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212909 [Multi-domain]  Cd Length: 54  Bit Score: 48.40  E-value: 4.28e-07
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gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQ--QDMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd11976      2 AKARYDFCARDRSELSLKEGDIIKILNKkgQQGWWRGEIYGRVGWFPANYVE 53
SH3_SH3RF2_1 cd11929
First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
917-968 4.55e-07

First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212862  Cd Length: 54  Bit Score: 48.40  E-value: 4.55e-07
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gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11929      2 RAKALCNYRGHNPGDLKFNKGDVILLRRQLDEnWYLGEINGVSGIFPASSVEV 54
SH3_Nck_2 cd11766
Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
1006-1055 4.61e-07

Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212700 [Multi-domain]  Cd Length: 53  Bit Score: 48.03  E-value: 4.61e-07
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gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11766      1 PAVVKFNYEAQREDELSLRKGDRVLVLEKSSDgWWRGECNGQVGWFPSNYV 51
SH3_GRB2_like_C cd11805
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
746-803 4.73e-07

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212739 [Multi-domain]  Cd Length: 53  Bit Score: 48.01  E-value: 4.73e-07
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gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKgEWVDesqtgePGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11805      3 QALYDFNPQEPGELEFRRGDIITVL-DSSD------PDWWKGELRGRVGIFPANYVQP 53
SH3_DNMBP_C2_like cd11800
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
920-965 4.84e-07

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. Also included in this subfamily is the second C-terminal SH3 domain of Rho guanine nucleotide exchange factor 37 (ARHGEF37), whose function is still unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212734 [Multi-domain]  Cd Length: 57  Bit Score: 48.14  E-value: 4.84e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDM-----WWFGEVQGQKGWFPKSY 965
Cdd:cd11800      4 ALYTFEARSPGELSVTEGQVVTVLEKHDLkgnpeWWLVEDRGKQGYVPSNY 54
SH3_SH3RF_2 cd11787
Second Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
1008-1054 4.85e-07

Second Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the second SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212721 [Multi-domain]  Cd Length: 53  Bit Score: 48.10  E-value: 4.85e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1008 IAMYTYESS---EQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNY 1054
Cdd:cd11787      3 KALYDFEMKdedEKDCLTFKKGDVITVIRRvDENWAEGRLGDKIGIFPISF 53
SH3_ASAP cd11821
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
918-965 5.01e-07

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing proteins; ASAPs are Arf GTPase activating proteins (GAPs) and they function in regulating cell growth, migration, and invasion. They contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. Vertebrates contain at least three members, ASAP1, ASAP2, and ASAP3, but some ASAP3 proteins do not seem to harbor a C-terminal SH3 domain. ASAP1 and ASAP2 show GTPase activating protein (GAP) activity towards Arf1 and Arf5. They do not show GAP activity towards Arf6, but are able to mediate Arf6 signaling by binding stably to GTP-Arf6. ASAP3 is an Arf6-specific GAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212755 [Multi-domain]  Cd Length: 53  Bit Score: 48.08  E-value: 5.01e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQGQ---KGWFPKSY 965
Cdd:cd11821      2 VRALYDCQADNDDELTFSEGEIIVVTGEEDdEWWEGHIEGDpsrRGVFPVSF 53
SH3_DNMBP_C2 cd12141
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
1163-1210 5.14e-07

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213017 [Multi-domain]  Cd Length: 57  Bit Score: 48.26  E-value: 5.14e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKED----PDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12141      5 VYTFKARSPNELSVSANQRVRILEFSDltgnKEWWLAEANGQKGYVPSNYIR 56
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
334-708 5.20e-07

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 55.06  E-value: 5.20e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  334 VLEDEQQQLEKKLPVtfEDKKRENFERGNLELEKRRQAL----------LEQQRKEQERL-AQLERAEqERKERERQEQE 402
Cdd:TIGR02168  348 ELKEELESLEAELEE--LEAELEELESRLEELEEQLETLrskvaqlelqIASLNNEIERLeARLERLE-DRRERLQQEIE 424
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  403 RKRQLELEKQLEKQRELERQREEERRKEIERREAAKRELERQR-QLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFE 481
Cdd:TIGR02168  425 ELLKKLEEAELKELQAELEELEEELEELQEELERLEEALEELReELEEAEQALDAAERELAQLQARLDSLERLQENLEGF 504
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  482 LEAL-NDKKHQ---------------------------LEGKLQDIRCR-LTTQRQEIESTNKSRELRIA---------- 522
Cdd:TIGR02168  505 SEGVkALLKNQsglsgilgvlselisvdegyeaaieaaLGGRLQAVVVEnLNAAKKAIAFLKQNELGRVTflpldsikgt 584
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  523 --EITHLQQQLQESQQMLGRLIPEKQ------ILNDQLKQV-----------QQNSLHRD-SLVTLK-----------RA 571
Cdd:TIGR02168  585 eiQGNDREILKNIEGFLGVAKDLVKFdpklrkALSYLLGGVlvvddldnaleLAKKLRPGyRIVTLDgdlvrpggvitGG 664
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  572 LEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELReihnKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQR 651
Cdd:TIGR02168  665 SAKTNSSILERRREIEELEEKIEELEEKIAELEKALAELR----KELEELEEELEQLRKELEELSRQISALRKDLARLEA 740
                          410       420       430       440       450
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  652 RAQERDKQWlehVQQEDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGRL 708
Cdd:TIGR02168  741 EVEQLEERI---AQLSKELTELEAEIEELEERLEEAEEELAEAEAEIEELEAQIEQL 794
SH3_Yes cd12007
Src homology 3 domain of Yes Protein Tyrosine Kinase; Yes (or c-Yes) is a member of the Src ...
1007-1059 5.32e-07

Src homology 3 domain of Yes Protein Tyrosine Kinase; Yes (or c-Yes) is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. c-Yes kinase is the cellular homolog of the oncogenic protein (v-Yes) encoded by the Yamaguchi 73 and Esh sarcoma viruses. It displays functional overlap with other Src subfamily members, particularly Src. It also shows some unique functions such as binding to occludins, transmembrane proteins that regulate extracellular interactions in tight junctions. Yes also associates with a number of proteins in different cell types that Src does not interact with, like JAK2 and gp130 in pre-adipocytes, and Pyk2 in treated pulmonary vein endothelial cells. Although the biological function of Yes remains unclear, it appears to have a role in regulating cell-cell interactions and vesicle trafficking in polarized cells. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212940 [Multi-domain]  Cd Length: 58  Bit Score: 48.11  E-value: 5.32e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTG--TVGDKAGVFPSNYVRLKD 1059
Cdd:cd12007      3 FVALYDYEARTTEDLSFKKGERFqIINNTEGDWWEArsIATGKNGYIPSNYVAPAD 58
SH3_Stac3_1 cd11986
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 ...
1161-1209 5.46e-07

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 (Stac3); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212919 [Multi-domain]  Cd Length: 53  Bit Score: 47.98  E-value: 5.46e-07
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11986      3 VALYRFKALEKDDLDFHPGERITVIDDSNEEWWRGKIGEKTGYFPMNFI 51
SH3_ARHGEF9 cd11975
Src homology 3 domain of the Rho guanine nucleotide exchange factor ARHGEF9; ARHGEF9, also ...
1162-1211 5.50e-07

Src homology 3 domain of the Rho guanine nucleotide exchange factor ARHGEF9; ARHGEF9, also called PEM2 or collybistin, selectively activates Cdc42 by exchanging bound GDP for free GTP. It is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. Mutations in the ARHGEF9 gene cause X-linked mental retardation with associated features like seizures, hyper-anxiety, aggressive behavior, and sensory hyperarousal. ARHGEF9 contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212908  Cd Length: 62  Bit Score: 48.17  E-value: 5.50e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11975      9 AVWDHVTMANRELAFKAGDVIKVLDASNKDWWWGQIDDEEGWFPASFVRL 58
SH3_Nephrocystin cd11770
Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain ...
1006-1057 5.57e-07

Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain involved in signaling pathways that regulate cell adhesion and cytoskeletal organization. It is a protein that in humans is associated with juvenile nephronophthisis, an inherited kidney disease characterized by renal fibrosis that lead to chronic renal failure in children. It is localized in cell-cell junctions in renal duct cells, and is known to interact with Ack1, an activated Cdc42-associated kinase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212704 [Multi-domain]  Cd Length: 54  Bit Score: 48.08  E-value: 5.57e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDV--ILVTKKDGdWWTG--TVGDKaGVFPSNYVRL 1057
Cdd:cd11770      1 LYEALSDFQAEQEGDLSFKKGEVlrIISKRADG-WWLAenSKGNR-GLVPKTYLKV 54
SH3_Lasp1_C cd11934
C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic ...
745-804 5.71e-07

C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic protein that binds focal adhesion proteins and is involved in cell signaling, migration, and proliferation. It is overexpressed in several cancer cells including breast, ovarian, bladder, and liver. In cancer cells, it can be found in the nucleus; its degree of nuclear localization correlates with tumor size and poor prognosis. Lasp1 is a 36kD protein containing an N-terminal LIM domain, two nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212867 [Multi-domain]  Cd Length: 59  Bit Score: 48.07  E-value: 5.71e-07
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVmvkgewVDESQTGEpGWLGG--ELKGKTGWFPANYAEKI 804
Cdd:cd11934      5 YRAVYDYNAADEDEVSFQDGDTI------VNVQQIDD-GWMYGtvERTGDTGMLPANYVEAI 59
SH3_GAS7 cd11829
Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the ...
746-800 5.82e-07

Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the brain and is required for neurite outgrowth. It may also play a role in the protection and migration of embryonic stem cells. Treatment-related acute myeloid leukemia (AML) has been reported resulting from mixed-lineage leukemia (MLL)-GAS7 translocations as a complication of primary cancer treatment. GAS7 contains an N-terminal SH3 domain, followed by a WW domain, and a central F-BAR domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212763 [Multi-domain]  Cd Length: 52  Bit Score: 47.89  E-value: 5.82e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  746 RALYPFESRSHDE-ITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANY 800
Cdd:cd11829      3 RTLYAFTGEQHQQgLSFEAGELIRV-------LQAPDGGWWEGEKDGLRGWFPASY 51
SH3_Intersectin2_3 cd11992
Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
920-967 5.86e-07

Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (SH3C) of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212925  Cd Length: 52  Bit Score: 47.70  E-value: 5.86e-07
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd11992      4 ALYPYSSSEPGDLTFNEGEEILVTQKDGEWWTGSIEDRTGIFPSNYVR 51
SH3_ephexin1_like cd11793
Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange ...
917-966 5.96e-07

Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange factors; Members of this family contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and C-terminal SH3 domains. They include the Rho guanine nucleotide exchange factors ARHGEF5, ARHGEF16, ARHGEF19, ARHGEF26, ARHGEF27 (also called ephexin-1), and similar proteins, and are also called ephexins because they interact directly with ephrin A receptors. GEFs interact with Rho GTPases via their DH domains to catalyze nucleotide exchange by stabilizing the nucleotide-free GTPase intermediate. They play important roles in neuronal development. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212727 [Multi-domain]  Cd Length: 55  Bit Score: 47.72  E-value: 5.96e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGE--VQGQKGWFPKSYV 966
Cdd:cd11793      1 QVQCVHAYTAQQPDELTLEEGDVVNVLRKmPDGWYEGErlRDGERGWFPSSYT 53
SH3_Sorbs_2 cd11782
Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
917-967 6.01e-07

Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the second SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212716 [Multi-domain]  Cd Length: 53  Bit Score: 47.73  E-value: 6.01e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSYVK 967
Cdd:cd11782      1 EARAKYNFNADTGVELSFRKGDVITLTRRVDENWYeGRIGGRQGIFPVSYVQ 52
SH3_srGAP cd11809
Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating ...
1006-1057 6.09e-07

Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating Proteins (srGAPs) are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. Vertebrates contain three isoforms of srGAPs (srGAP1-3), all of which are expressed during embryonic and early development in the nervous system but with different localization and timing. A fourth member has also been reported (srGAP4, also called ARHGAP4). srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212743 [Multi-domain]  Cd Length: 53  Bit Score: 47.78  E-value: 6.09e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11809      1 EATAQFDYTGRSERELSFKKGDSLtLYRQVSDDWWRGQLNGQDGLVPHKYITL 53
SH3_Lasp1_C cd11934
C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic ...
1162-1210 6.12e-07

C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic protein that binds focal adhesion proteins and is involved in cell signaling, migration, and proliferation. It is overexpressed in several cancer cells including breast, ovarian, bladder, and liver. In cancer cells, it can be found in the nucleus; its degree of nuclear localization correlates with tumor size and poor prognosis. Lasp1 is a 36kD protein containing an N-terminal LIM domain, two nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212867 [Multi-domain]  Cd Length: 59  Bit Score: 48.07  E-value: 6.12e-07
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEV--NGQVGLFPSNYVK 1210
Cdd:cd11934      7 AVYDYNAADEDEVSFQDGDTIVNVQQIDDGWMYGTVerTGDTGMLPANYVE 57
SH3_GRAP_N cd11948
N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
1006-1057 6.27e-07

N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The N-terminal SH3 domain of the related protein GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212881 [Multi-domain]  Cd Length: 54  Bit Score: 47.89  E-value: 6.27e-07
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gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVT--KKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11948      1 EAVALYSFQATESDELPFQKGDILKILnmEDDQNWYKAELQGREGYIPKNYIKV 54
SH3_p47phox_like cd11856
Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This ...
1006-1056 6.31e-07

Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This family is composed of the tandem SH3 domains of p47phox subunit of NADPH oxidase and Nox Organizing protein 1 (NoxO1), the four SH3 domains of Tks4 (Tyr kinase substrate with four SH3 domains), the five SH3 domains of Tks5, the SH3 domain of obscurin, Myosin-I, and similar domains. Most members of this group also contain Phox homology (PX) domains, except for obscurin and Myosin-I. p47phox and NoxO1 are regulators of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) and nonphagocytic NADPH oxidase Nox1, respectively. They play roles in the activation of their respective NADPH oxidase, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Obscurin is a giant muscle protein that plays important roles in the organization and assembly of the myofibril and the sarcoplasmic reticulum. Type I myosins (Myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212790 [Multi-domain]  Cd Length: 53  Bit Score: 47.63  E-value: 6.31e-07
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gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd11856      1 SYVAIADYEAQGDDEISLQEGEVVEVLEKnDSGWWYVRKGDKEGWVPASYLE 52
SH3_STAM cd11820
Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as ...
746-803 6.34e-07

Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. There are two vertebrate STAMs, STAM1 and STAM2, which may be functionally redundant; vertebrate STAMs contain ITAM motifs. They are part of the endosomal sorting complex required for transport (ESCRT-0). STAM2 deficiency in mice did not cause any obvious abnormality, while STAM1 deficiency resulted in growth retardation. Loss of both STAM1 and STAM2 in mice proved lethal, indicating that STAMs are important for embryonic development. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212754 [Multi-domain]  Cd Length: 54  Bit Score: 47.85  E-value: 6.34e-07
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gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVkgewVDESqtgEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11820      4 RALYDFEAAEDNELTFKAGEIITV----LDDS---DPNWWKGSNHRGEGLFPANFVTA 54
SH3_DOCK_AB cd11872
Src Homology 3 domain of Class A and B Dedicator of Cytokinesis proteins; DOCK proteins are ...
920-968 6.41e-07

Src Homology 3 domain of Class A and B Dedicator of Cytokinesis proteins; DOCK proteins are atypical guanine nucleotide exchange factors (GEFs) that lack the conventional Dbl homology (DH) domain. They are divided into four classes (A-D) based on sequence similarity and domain architecture: class A includes Dock1, 2 and 5; class B includes Dock3 and 4; class C includes Dock6, 7, and 8; and class D includes Dock9, 10 and 11. All DOCKs contain two homology domains: the DHR-1 (Dock homology region-1), also called CZH1 (CED-5, Dock180, and MBC-zizimin homology 1), and DHR-2 (also called CZH2 or Docker). The DHR-1 domain binds phosphatidylinositol-3,4,5-triphosphate while DHR-2 contains the catalytic activity for Rac and/or Cdc42. This subfamily includes only Class A and B DOCKs, which also contain an SH3 domain at the N-terminal region and a PxxP motif at the C-terminus. Class A/B DOCKs are mostly specific GEFs for Rac, except Dock4 which activates the Ras family GTPase Rap1, probably indirectly through interaction with Rap regulatory proteins. The SH3 domain of class A/B DOCKs have been shown to bind Elmo, a scaffold protein that promotes GEF activity of DOCKs by releasing DHR-2 autoinhibition by the intramolecular SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212805 [Multi-domain]  Cd Length: 56  Bit Score: 47.96  E-value: 6.41e-07
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gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQ---GQKGWFPKSYVKL 968
Cdd:cd11872      4 AIYNFQGDGEHQLSLQVGDTVQILEECEGWYRGFSLrnkSLKGIFPKSYVHI 55
SH3_srGAP4 cd11956
Src homology 3 domain of Slit-Robo GTPase Activating Protein 4; srGAP4, also called ARHGAP4, ...
1006-1057 6.46e-07

Src homology 3 domain of Slit-Robo GTPase Activating Protein 4; srGAP4, also called ARHGAP4, is highly expressed in hematopoietic cells and may play a role in lymphocyte differentiation. It is able to stimulate the GTPase activity of Rac1, Cdc42, and RhoA. In the nervous system, srGAP4 has been detected in differentiating neurites and may be involved in axon and dendritic growth. srGAPs are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212889 [Multi-domain]  Cd Length: 55  Bit Score: 47.91  E-value: 6.46e-07
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gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILV-TKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11956      3 EAVACFDYTGRTAQELSFKRGDVLLLhSKASSDWWRGEHNGMRGLIPHKYISV 55
SH3_Intersectin2_5 cd11996
Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1080-1135 6.48e-07

Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212929 [Multi-domain]  Cd Length: 54  Bit Score: 47.67  E-value: 6.48e-07
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gi 1034627469 1080 QVIA--SYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQArgkkrQIGWFPANYVKL 1135
Cdd:cd11996      2 QVIAmyDYTANNEDELSFSKGQLINVLNKDDPDWWQGEING-----VTGLFPSNYVKM 54
SH3_Intersectin_1 cd11836
First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor ...
1009-1055 6.54e-07

First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212770 [Multi-domain]  Cd Length: 55  Bit Score: 47.74  E-value: 6.54e-07
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKDG---DWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11836      4 ALYAFEARNPDEISFQPGDIIQVDESQVaepGWLAGELKGKTGWFPANYV 53
SH3_p47phox_like cd11856
Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This ...
1081-1134 7.03e-07

Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This family is composed of the tandem SH3 domains of p47phox subunit of NADPH oxidase and Nox Organizing protein 1 (NoxO1), the four SH3 domains of Tks4 (Tyr kinase substrate with four SH3 domains), the five SH3 domains of Tks5, the SH3 domain of obscurin, Myosin-I, and similar domains. Most members of this group also contain Phox homology (PX) domains, except for obscurin and Myosin-I. p47phox and NoxO1 are regulators of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) and nonphagocytic NADPH oxidase Nox1, respectively. They play roles in the activation of their respective NADPH oxidase, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Obscurin is a giant muscle protein that plays important roles in the organization and assembly of the myofibril and the sarcoplasmic reticulum. Type I myosins (Myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212790 [Multi-domain]  Cd Length: 53  Bit Score: 47.63  E-value: 7.03e-07
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gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPGGWWegelQARGKKRQiGWFPANYVK 1134
Cdd:cd11856      4 AIADYEAQGDDEISLQEGEVVEVLEKNDSGWW----YVRKGDKE-GWVPASYLE 52
SH3_Fyn_Yrk cd12006
Src homology 3 domain of Fyn and Yrk Protein Tyrosine Kinases; Fyn and Yrk (Yes-related kinase) ...
1007-1055 7.04e-07

Src homology 3 domain of Fyn and Yrk Protein Tyrosine Kinases; Fyn and Yrk (Yes-related kinase) are members of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Fyn, together with Lck, plays a critical role in T-cell signal transduction by phosphorylating ITAM (immunoreceptor tyr activation motif) sequences on T-cell receptors, ultimately leading to the proliferation and differentiation of T-cells. In addition, Fyn is involved in the myelination of neurons, and is implicated in Alzheimer's and Parkinson's diseases. Yrk has been detected only in chickens. It is primarily found in neuronal and epithelial cells and in macrophages. It may play a role in inflammation and in response to injury. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212939 [Multi-domain]  Cd Length: 56  Bit Score: 47.74  E-value: 7.04e-07
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gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTG---TVGDkAGVFPSNYV 1055
Cdd:cd12006      3 FVALYDYEARTEDDLSFHKGEKFqILNSSEGDWWEArslTTGE-TGYIPSNYV 54
SH3_srGAP1-3 cd11955
Src homology 3 domain of Slit-Robo GTPase Activating Proteins 1, 2, and 3; srGAP1, also called ...
1159-1209 7.44e-07

Src homology 3 domain of Slit-Robo GTPase Activating Proteins 1, 2, and 3; srGAP1, also called Rho GTPase-Activating Protein 13 (ARHGAP13), is a Cdc42- and RhoA-specific GAP and is expressed later in the development of central nervous system tissues. srGAP2 is expressed in zones of neuronal differentiation. It plays a role in the regeneration of neurons and axons. srGAP3, also called MEGAP (MEntal disorder associated GTPase-Activating Protein), is a Rho GAP with activity towards Rac1 and Cdc42. It impacts cell migration by regulating actin and microtubule cytoskeletal dynamics. The association between srGAP3 haploinsufficiency and mental retardation is under debate. srGAPs are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212888 [Multi-domain]  Cd Length: 53  Bit Score: 47.63  E-value: 7.44e-07
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gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11955      1 EAIAKFDYVGRSARELSFKKGASLLLYHRASDDWWEGRHNGIDGLVPHQYI 51
SH3_Intersectin1_3 cd11991
Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
920-968 7.48e-07

Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212924  Cd Length: 52  Bit Score: 47.67  E-value: 7.48e-07
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gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11991      4 AMYTYESNEQGDLTFQQGDVILVTKKDGDWWTGTVGDKTGVFPSNYVRP 52
ARGLU pfam15346
Arginine and glutamate-rich 1; ARGLU, arginine and glutamate-rich 1 protein family, is ...
568-688 7.61e-07

Arginine and glutamate-rich 1; ARGLU, arginine and glutamate-rich 1 protein family, is required for the oestrogen-dependent expression of ESR1 target genes. It functions in cooperation with MED1. The family of proteins is found in eukaryotes.


Pssm-ID: 405931 [Multi-domain]  Cd Length: 151  Bit Score: 50.43  E-value: 7.61e-07
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gi 1034627469  568 LKRALEAKELARQHLRDqlDEVEKETRSKLQEI-DIFNNQLKELREIHNKQQLQKQKSM-EAERLKQKEQERKIIELEKQ 645
Cdd:pfam15346   16 VEEAVAKRVEEELEKRK--DEIEAEVERRVEEArKIMEKQVLEELEREREAELEEERRKeEEERKKREELERILEENNRK 93
                           90       100       110       120
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gi 1034627469  646 KEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKREESV 688
Cdd:pfam15346   94 IEEAQRKEAEERLAMLEEQRRMKEERQRREKEEEEREKREQQK 136
SH3_Pex13p_fungal cd11771
Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the ...
746-802 7.66e-07

Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the peroxisomal membrane, contains two transmembrane regions and a C-terminal SH3 domain. It binds to the peroxisomal targeting type I (PTS1) receptor Pex5p and the docking factor Pex14p through its SH3 domain. It is essential for both PTS1 and PTS2 protein import pathways into the peroxisomal matrix. Pex13p binds Pex14p, which contains a PxxP motif, in a classical fashion to the proline-rich ligand binding site of its SH3 domain. It binds the WxxxF/Y motif of Pex5p in a novel site that does not compete with Pex14p binding. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212705 [Multi-domain]  Cd Length: 60  Bit Score: 47.66  E-value: 7.66e-07
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gi 1034627469  746 RALYPFESRSHD-EITIQPGDIVMVKGEwvdESQTGEP-GWLGGELK-GKTGWFPANYAE 802
Cdd:cd11771      3 RALYDFTPENPEmELSLKKGDIVAVLSK---TDPLGRDsEWWKGRTRdGRIGWFPSNYVE 59
SH3_Src cd12008
Src homology 3 domain of Src Protein Tyrosine Kinase; Src (or c-Src) is a cytoplasmic (or ...
1007-1055 7.74e-07

Src homology 3 domain of Src Protein Tyrosine Kinase; Src (or c-Src) is a cytoplasmic (or non-receptor) PTK and is the vertebrate homolog of the oncogenic protein (v-Src) from Rous sarcoma virus. Together with other Src subfamily proteins, it is involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. Src also play a role in regulating cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Elevated levels of Src kinase activity have been reported in a variety of human cancers. Several inhibitors of Src have been developed as anti-cancer drugs. Src is also implicated in acute inflammatory responses and osteoclast function. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212941 [Multi-domain]  Cd Length: 56  Bit Score: 47.80  E-value: 7.74e-07
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gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTG---TVGdKAGVFPSNYV 1055
Cdd:cd12008      2 FVALYDYESRTETDLSFKKGERLqIVNNTEGDWWLAhslTTG-QTGYIPSNYV 53
SH3_Abi cd11826
Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor ...
1081-1133 7.86e-07

Src homology 3 domain of Abl Interactor proteins; Abl interactor (Abi) proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. They localize to sites of actin polymerization in epithelial adherens junction and immune synapses, as well as to the leading edge of lamellipodia. Vertebrates contain two Abi proteins, Abi1 and Abi2. Abi1 displays a wide expression pattern while Abi2 is highly expressed in the eye and brain. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212760 [Multi-domain]  Cd Length: 52  Bit Score: 47.32  E-value: 7.86e-07
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gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARgkkrqIGWFPANYV 1133
Cdd:cd11826      4 ALYDYTADKDDELSFQEGDIIYVTKKNDDGWYEGVLNGV-----TGLFPGNYV 51
SH3_Amphiphysin cd11790
Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in ...
746-804 7.90e-07

Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in endocytosis and other membrane remodeling events. They exist in several isoforms and mammals possess two amphiphysin proteins from distinct genes. Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin, and synaptojanin. They function in synaptic vesicle endocytosis. Human autoantibodies to amphiphysin I hinder GABAergic signaling and contribute to the pathogenesis of paraneoplastic stiff-person syndrome. Some amphiphysin II isoforms, also called Bridging integrator 1 (Bin1), are localized in many different tissues and may function in intracellular vesicle trafficking. In skeletal muscle, Bin1 plays a role in the organization and maintenance of the T-tubule network. Mutations in Bin1 are associated with autosomal recessive centronuclear myopathy. Amphiphysins contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. The SH3 domain of amphiphysins bind proline-rich motifs present in binding partners such as dynamin, synaptojanin, and nsP3. It also belongs to a subset of SH3 domains that bind ubiquitin in a site that overlaps with the peptide binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212724 [Multi-domain]  Cd Length: 64  Bit Score: 47.71  E-value: 7.90e-07
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gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKgEWVDESQTGEpGWLGG--ELKGKTGWFPANYAEKI 804
Cdd:cd11790      6 RATHDYTAEDTDELTFEKGDVILVI-PFDDPEEQDE-GWLMGvkESTGCRGVFPENFTERI 64
SH3_Tks4_2 cd12076
Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also ...
1163-1210 7.99e-07

Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also called SH3 and PX domain-containing protein 2B (SH3PXD2B) or HOFI, is a Src substrate and scaffolding protein that plays an important role in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. It is required in the formation of functional podosomes, EGF-induced membrane ruffling, and lamellipodia generation. It plays an important role in cellular attachment and cell spreading. Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. It contains an N-terminal Phox homology (PX) domain and four SH3 domains. This model characterizes the second SH3 domain of Tks4. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213009 [Multi-domain]  Cd Length: 54  Bit Score: 47.72  E-value: 7.99e-07
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12076      6 IYPYTARDQDEINLEKGAVVEVIQKNLEGWWKIRYQGKEGWAPASYLK 53
SH3_VAV1_2 cd11976
C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly ...
1009-1055 8.09e-07

C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly in the hematopoietic system and it plays an important role in the development and activation of B and T cells. It is activated by tyrosine phosphorylation to function as a guanine nucleotide exchange factor (GEF) for Rho GTPases following cell surface receptor activation, triggering various effects such as cytoskeletal reorganization, transcription regulation, cell cycle progression, and calcium mobilization. It also serves as a scaffold protein and has been shown to interact with Ku70, Socs1, Janus kinase 2, SIAH2, S100B, Abl gene, ZAP-70, SLP76, and Syk, among others. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The C-terminal SH3 domain of Vav1 interacts with a wide variety of proteins including cytoskeletal regulators (zyxin), RNA-binding proteins (Sam68), transcriptional regulators, viral proteins, and dynamin 2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212909 [Multi-domain]  Cd Length: 54  Bit Score: 47.63  E-value: 8.09e-07
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKDGD--WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11976      4 ARYDFCARDRSELSLKEGDIIKILNKKGQqgWWRGEIYGRVGWFPANYV 52
C2B_Synaptotagmin-like cd04050
C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a ...
1612-1668 8.46e-07

C2 domain second repeat present in Synaptotagmin-like proteins; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176015 [Multi-domain]  Cd Length: 105  Bit Score: 49.10  E-value: 8.46e-07
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gi 1034627469 1612 RSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQ 1668
Cdd:cd04050     16 KSTKEPSPYVELTVGKTTQKSKVKERTNNPVWEEGFTFLVRNPENQELEIEVKDDKT 72
SH3_Vinexin_1 cd11921
First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3) ...
1164-1211 8.68e-07

First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212854  Cd Length: 55  Bit Score: 47.61  E-value: 8.68e-07
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gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11921      7 FDFQAQSPKELTLQKGDIVYIHKEVDKNWLEGEHHGRVGIFPANYVEV 54
SH3_Intersectin_4 cd11839
Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor ...
918-968 8.72e-07

Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212773 [Multi-domain]  Cd Length: 58  Bit Score: 47.33  E-value: 8.72e-07
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gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQG-----QKGWFPKSYVKL 968
Cdd:cd11839      2 AQVIAPFTATAENQLSLAVGQLVLVRKKSPSgWWEGELQArgkkrQIGWFPANYVKL 58
SH3_MyoIe_If_like cd11827
Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If ...
1079-1133 9.11e-07

Src homology 3 domain of Myosins Ie, If, and similar proteins; Myosins Ie (MyoIe) and If (MyoIf) are nonmuscle, unconventional, long tailed, class I myosins containing an N-terminal motor domain and a myosin tail with TH1, TH2, and SH3 domains. MyoIe interacts with the endocytic proteins, dynamin and synaptojanin-1, through its SH3 domain; it may play a role in clathrin-dependent endocytosis. In the kidney, MyoIe is critical for podocyte function and normal glomerular filtration. Mutations in MyoIe is associated with focal segmental glomerulosclerosis, a disease characterized by massive proteinuria and progression to end-stage kidney disease. MyoIf is predominantly expressed in the immune system; it plays a role in immune cell motility and innate immunity. Mutations in MyoIf may be associated with the loss of hearing. The MyoIf gene has also been found to be fused to the MLL (Mixed lineage leukemia) gene in infant acute myeloid leukemias (AML). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212761 [Multi-domain]  Cd Length: 53  Bit Score: 47.41  E-value: 9.11e-07
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gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELqaRGKKrqiGWFPANYV 1133
Cdd:cd11827      2 CKALYAYDAQDTDELSFNEGDIIEILKEDPSGWWTGRL--RGKE---GLFPGNYV 51
SH3_Intersectin1_5 cd11995
Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1080-1135 9.13e-07

Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212928 [Multi-domain]  Cd Length: 54  Bit Score: 47.26  E-value: 9.13e-07
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gi 1034627469 1080 QVIA--SYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQArgkkrQIGWFPANYVKL 1135
Cdd:cd11995      2 QVIGmyDYTAQNDDELAFSKGQIINVLNKEDPDWWKGELNG-----QVGLFPSNYVKL 54
SH3_Nck1_2 cd11901
Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
1079-1133 9.30e-07

Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212834 [Multi-domain]  Cd Length: 55  Bit Score: 47.34  E-value: 9.30e-07
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gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARgkkrqIGWFPANYV 1133
Cdd:cd11901      4 AYVKFNYTAEREDELSLVKGTKVIVMEKCSDGWWRGSYNGQ-----VGWFPSNYV 53
SH3_GAS7 cd11829
Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the ...
919-966 9.42e-07

Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the brain and is required for neurite outgrowth. It may also play a role in the protection and migration of embryonic stem cells. Treatment-related acute myeloid leukemia (AML) has been reported resulting from mixed-lineage leukemia (MLL)-GAS7 translocations as a complication of primary cancer treatment. GAS7 contains an N-terminal SH3 domain, followed by a WW domain, and a central F-BAR domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212763 [Multi-domain]  Cd Length: 52  Bit Score: 47.12  E-value: 9.42e-07
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gi 1034627469  919 QALYPWRAKKDNH-LNFNKNDVITVLEQQD-MWWFGEVQGQKGWFPKSYV 966
Cdd:cd11829      3 RTLYAFTGEQHQQgLSFEAGELIRVLQAPDgGWWEGEKDGLRGWFPASYV 52
SH3_Nebulin_C cd11933
C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 ...
1163-1210 9.57e-07

C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 kD) that is expressed abundantly in skeletal muscle. It binds to actin thin filaments and regulates its assembly and function. Nebulin was thought to be part of a molecular ruler complex that is critical in determining the lengths of actin thin filaments in skeletal muscle since its length, which varies due to alternative splicing, correlates with the length of thin filaments in various muscle types. Recent studies indicate that nebulin regulates thin filament length by stabilizing the filaments and preventing depolymerization. Mutations in nebulin can cause nemaline myopathy, characterized by muscle weakness which can be severe and can lead to neonatal lethality. Nebulin contains an N-terminal LIM domain, many nebulin repeats/super repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212866 [Multi-domain]  Cd Length: 58  Bit Score: 47.31  E-value: 9.57e-07
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVN--GQVGLFPSNYVK 1210
Cdd:cd11933      7 MYDYRAADDDEVSFKDGDTIVNVQTIDEGWMYGTVQrtGKTGMLPANYVE 56
SH3_GRAP_C cd11951
C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
1009-1055 9.70e-07

C-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domains (SH3c) of the related proteins, GRB2 and GRAP2, have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212884  Cd Length: 53  Bit Score: 47.10  E-value: 9.70e-07
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11951      4 AQYDFSAEDPSQLSFRRGDIIEVLDCpDPNWWRGRISGRVGFFPRNYV 51
SH3_p67phox-like_C cd11870
C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; ...
1008-1055 9.84e-07

C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; This subfamily is composed of p67phox, NADPH oxidase activator 1 (Noxa1), and similar proteins. p67phox, also called Neutrophil cytosol factor 2 (NCF-2), and Noxa1 are homologs and are the cytosolic subunits of the phagocytic (Nox2) and nonphagocytic (Nox1) NADPH oxidase complexes, respectively. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox and Noxa1 play regulatory roles. p67phox contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. Noxa1 has a similar domain architecture except it is lacking the N-terminal SH3 domain. The TPR domain of both binds activated GTP-bound Rac, while the C-terminal SH3 domain of p67phox and Noxa1 binds the polyproline motif found at the C-terminus of p47phox and Noxo1, respectively. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212803 [Multi-domain]  Cd Length: 53  Bit Score: 47.14  E-value: 9.84e-07
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gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILV-TKKDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11870      3 VALHRYEAQGPEDLGFREGDTIDVlSEVNEAWLEGHSDGRVGIFPKCFV 51
SH3_MYO15 cd11884
Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to ...
744-802 9.87e-07

Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to Myosin XVa. Myosin XVa is an unconventional myosin that is critical for the normal growth of mechanosensory stereocilia of inner ear hair cells. Mutations in the myosin XVa gene are associated with nonsyndromic hearing loss. Myosin XVa contains a unique N-terminal extension followed by a motor domain, light chain-binding IQ motifs, and a tail consisting of a pair of MyTH4-FERM tandems separated by a SH3 domain, and a PDZ domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212817 [Multi-domain]  Cd Length: 56  Bit Score: 47.32  E-value: 9.87e-07
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gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVkgewVDESQTGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11884      1 YVVAVRAYITRDQTLLSFHKGDVIKL----LPKEGPLDPGWLFGTLDGRSGAFPKEYVQ 55
SH3_CASS4 cd12000
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member 4; ...
1163-1211 9.89e-07

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member 4; CASS4, also called HEPL (HEF1-EFS-p130Cas-like), localizes to focal adhesions and plays a role in regulating FAK activity, focal adhesion integrity, and cell spreading. It is most abundant in blood cells and lung tissue, and is also found in high levels in leukemia and ovarian cell lines. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212933  Cd Length: 57  Bit Score: 47.18  E-value: 9.89e-07
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPD---WWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd12000      6 LYDNKADCSDELAFRRGDILTVLEQNVPGsegWWKCLLHGRQGLAPANRLQL 57
SH3_ASAP cd11821
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
1009-1054 1.08e-06

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing proteins; ASAPs are Arf GTPase activating proteins (GAPs) and they function in regulating cell growth, migration, and invasion. They contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. Vertebrates contain at least three members, ASAP1, ASAP2, and ASAP3, but some ASAP3 proteins do not seem to harbor a C-terminal SH3 domain. ASAP1 and ASAP2 show GTPase activating protein (GAP) activity towards Arf1 and Arf5. They do not show GAP activity towards Arf6, but are able to mediate Arf6 signaling by binding stably to GTP-Arf6. ASAP3 is an Arf6-specific GAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212755 [Multi-domain]  Cd Length: 53  Bit Score: 46.92  E-value: 1.08e-06
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTV---GDKAGVFPSNY 1054
Cdd:cd11821      4 ALYDCQADNDDELTFSEGEIIVVTGEeDDEWWEGHIegdPSRRGVFPVSF 53
SH3_TXK cd11907
Src Homology 3 domain of TXK, also called Resting lymphocyte kinase (Rlk); TXK is a ...
1159-1209 1.09e-06

Src Homology 3 domain of TXK, also called Resting lymphocyte kinase (Rlk); TXK is a cytoplasmic (or nonreceptor) tyr kinase containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. It also contains an N-terminal cysteine-rich region. Rlk is expressed in T-cells and mast cell lines, and is a key component of T-cell receptor (TCR) signaling. It is important in TCR-stimulated proliferation, IL-2 production and phospholipase C-gamma1 activation. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212840 [Multi-domain]  Cd Length: 55  Bit Score: 47.26  E-value: 1.09e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVN-GQVGLFPSNYV 1209
Cdd:cd11907      2 QVKALYDFLPREPSNLALKRAEEYLILEQYDPHWWKARDRyGNEGLIPSNYV 53
SH3_SH3RF2_1 cd11929
First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
1009-1057 1.09e-06

First Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212862  Cd Length: 54  Bit Score: 47.24  E-value: 1.09e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11929      5 ALCNYRGHNPGDLKFNKGDVILLRRQlDENWYLGEINGVSGIFPASSVEV 54
SH3_Tks_2 cd12016
Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
1159-1210 1.09e-06

Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the second SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212949  Cd Length: 54  Bit Score: 47.07  E-value: 1.09e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12016      2 KYITTQAYKAENEDEIGFETGVVVEVIQKNLDGWWKIRYQGKEGWAPATYLK 53
SH3_GRAF2 cd12065
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 2; GRAF2, also ...
746-802 1.10e-06

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 2; GRAF2, also called Rho GTPase activating protein 10 (ARHGAP10) or PS-GAP, is a GAP with activity towards Cdc42 and RhoA. It regulates caspase-activated p21-activated protein kinase-2 (PAK-2p34). GRAF2 interacts with PAK-2p34, leading to its stabilization and decrease of cell death. It is highly expressed in skeletal muscle, and is involved in alpha-catenin recruitment at cell-cell junctions. GRAF2 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212998 [Multi-domain]  Cd Length: 54  Bit Score: 47.29  E-value: 1.10e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIvmvkgeWVDESQTGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd12065      3 KAVYPCEAEHSSELSFEVGAI------FEDVTLSREPGWLEGTLNGKRGLIPENYVE 53
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
335-652 1.11e-06

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 53.79  E-value: 1.11e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKlpvtfEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLE 414
Cdd:COG1196    426 LEEALAELEEE-----EEEEEEALEEAAEEEAELEEEEEALLELLAELLEEAALLEAALAELLEELAEAAARLLLLLEAE 500
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  415 KQRELERQREEERRKEIERRE----------------------AAKRELERQRQLEWERNRRQELLNQRNK--------- 463
Cdd:COG1196    501 ADYEGFLEGVKAALLLAGLRGlagavavligveaayeaaleaaLAAALQNIVVEDDEVAAAAIEYLKAAKAgratflpld 580
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  464 --EQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIR--CRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLG 539
Cdd:COG1196    581 kiRARAALAAALARGAIGAAVDLVASDLREADARYYVLGdtLLGRTLVAARLEAALRRAVTLAGRLREVTLEGEGGSAGG 660
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  540 RLIPEKQILNDQLKQVQQN--SLHRDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQ 617
Cdd:COG1196    661 SLTGGSRRELLAALLEAEAelEELAERLAEEELELEEALLAEEEEERELAEAEEERLEEELEEEALEEQLEAEREELLEE 740
                          330       340       350
                   ....*....|....*....|....*....|....*
gi 1034627469  618 QLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRR 652
Cdd:COG1196    741 LLEEEELLEEEALEELPEPPDLEELERELERLERE 775
PRK02224 PRK02224
DNA double-strand break repair Rad50 ATPase;
327-708 1.11e-06

DNA double-strand break repair Rad50 ATPase;


Pssm-ID: 179385 [Multi-domain]  Cd Length: 880  Bit Score: 53.51  E-value: 1.11e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  327 QRLPEEPVLEDEQQQLEKKLPVTFedKKRENFERgnlELEKRRQALLEQQRKEQERLAQ--LERAEQERKERERQEQERK 404
Cdd:PRK02224   248 ERREELETLEAEIEDLRETIAETE--REREELAE---EVRDLRERLEELEEERDDLLAEagLDDADAEAVEARREELEDR 322
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  405 RQlELEKQLEKQRELERQREEErrkeierreaAKRELERQRQLEwERNrrQELLNQRNKEQEDIVVLKAKKKTLEFELEA 484
Cdd:PRK02224   323 DE-ELRDRLEECRVAAQAHNEE----------AESLREDADDLE-ERA--EELREEAAELESELEEAREAVEDRREEIEE 388
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  485 LNDKKHQLEGKLQDIrcrlTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLK-----QVQQNS 559
Cdd:PRK02224   389 LEEEIEELRERFGDA----PVDLGNAEDFLEELREERDELREREAELEATLRTARERVEEAEALLEAGKcpecgQPVEGS 464
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  560 LHRDSLVTLKRALEAKELARQHLRDQLDEVEKETrsklqeidifnNQLKELREIHNK-QQLQKQKSMEAERLKQK----- 633
Cdd:PRK02224   465 PHVETIEEDRERVEELEAELEDLEEEVEEVEERL-----------ERAEDLVEAEDRiERLEERREDLEELIAERretie 533
                          330       340       350       360       370       380       390
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  634 EQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEK--LKRE-ESVKKKDGEEKGKQEAQDKLGRL 708
Cdd:PRK02224   534 EKRERAEELRERAAELEAEAEEKREAAAEAEEEAEEAREEVAELNSKLaeLKERiESLERIRTLLAAIADAEDEIERL 611
SH3_VAV_2 cd11830
C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as ...
918-967 1.12e-06

C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as cytoplasmic guanine nucleotide exchange factors (GEFs) for Rho GTPases and scaffold proteins and they play important roles in cell signaling by coupling cell surface receptors to various effector functions. They play key roles in processes that require cytoskeletal reorganization including immune synapse formation, phagocytosis, cell spreading, and platelet aggregation, among others. Vertebrates have three VAV proteins (VAV1, VAV2, and VAV3). VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212764 [Multi-domain]  Cd Length: 54  Bit Score: 47.24  E-value: 1.12e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQ--QDMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd11830      2 AKARYDFCARDMRELSLKEGDVVKIYNKkgQQGWWRGEINGRIGWFPSTYVE 53
SH3_HS1 cd12073
Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 ...
747-802 1.15e-06

Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 (hematopoietic cell-specific Lyn substrate 1), is a cortactin homolog expressed specifically in hematopoietic cells. It is an actin regulatory protein that binds the Arp2/3 complex and stabilizes branched actin filaments. It is required for cell spreading and signaling in lymphocytes. It regulates cytoskeletal remodeling that controls lymphocyte trafficking, and it also affects tissue invasion and infiltration of leukemic B cells. Like cortactin, HS1 contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region binds the Arp2/3 complex and F-actin, while the C-terminal region acts as an adaptor or scaffold that can connect varied proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213006 [Multi-domain]  Cd Length: 55  Bit Score: 47.13  E-value: 1.15e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVmVKGEWVDEsqtgepGWLGGELKGKTGWFPANYAE 802
Cdd:cd12073      5 ALYDYQGEGDDEISFDPQETI-TDIEMVDE------GWWKGTCHGHRGLFPANYVE 53
SH3_MYO15 cd11884
Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to ...
1008-1055 1.18e-06

Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to Myosin XVa. Myosin XVa is an unconventional myosin that is critical for the normal growth of mechanosensory stereocilia of inner ear hair cells. Mutations in the myosin XVa gene are associated with nonsyndromic hearing loss. Myosin XVa contains a unique N-terminal extension followed by a motor domain, light chain-binding IQ motifs, and a tail consisting of a pair of MyTH4-FERM tandems separated by a SH3 domain, and a PDZ domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212817 [Multi-domain]  Cd Length: 56  Bit Score: 46.94  E-value: 1.18e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGD----WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11884      3 VAVRAYITRDQTLLSFHKGDVIKLLPKEGPldpgWLFGTLDGRSGAFPKEYV 54
SH3_Lasp1_C cd11934
C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic ...
1003-1055 1.22e-06

C-terminal Src Homology 3 domain of LIM and SH3 domain protein 1; Lasp1 is a cytoplasmic protein that binds focal adhesion proteins and is involved in cell signaling, migration, and proliferation. It is overexpressed in several cancer cells including breast, ovarian, bladder, and liver. In cancer cells, it can be found in the nucleus; its degree of nuclear localization correlates with tumor size and poor prognosis. Lasp1 is a 36kD protein containing an N-terminal LIM domain, two nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212867 [Multi-domain]  Cd Length: 59  Bit Score: 47.30  E-value: 1.22e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1003 SGEEFIAMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTV---GDKaGVFPSNYV 1055
Cdd:cd11934      1 GGKRYRAVYDYNAADEDEVSFQDGDTIVnVQQIDDGWMYGTVertGDT-GMLPANYV 56
C2E_Ferlin cd04037
C2 domain fifth repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and ...
1600-1680 1.22e-06

C2 domain fifth repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and other proteins, such as Synaptotagmins, are implicated in facilitating the fusion process when cell membranes fuse together. There are six known human Ferlins: Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can lead to a wide range of diseases including muscular dystrophy (dysferlin), deafness (otoferlin), and infertility (fer-1, fertilization factor-1). Structurally they have 6 tandem C2 domains, designated as (C2A-C2F) and a single C-terminal transmembrane domain, though there is a new study that disputes this and claims that there are actually 7 tandem C2 domains with another C2 domain inserted between C2D and C2E. In a subset of them (Dysferlin, Myoferlin, and Fer1) there is an additional conserved domain called DysF. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the fifth C2 repeat, C2E, and has a type-II topology.


Pssm-ID: 176002 [Multi-domain]  Cd Length: 124  Bit Score: 49.09  E-value: 1.22e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1600 VNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITK--TIQDTLNPKWNsncQFFIRD--LEQE-VLCITVFERDQFSPDDF 1674
Cdd:cd04037      4 VYVVRARNLQPKDPNGKSDPYLKIKLGKKKINDRdnYIPNTLNPVFG---KMFELEatLPGNsILKISVMDYDLLGSDDL 80

                   ....*.
gi 1034627469 1675 LGRTEI 1680
Cdd:cd04037     81 IGETVI 86
COG4372 COG4372
Uncharacterized protein, contains DUF3084 domain [Function unknown];
366-669 1.25e-06

Uncharacterized protein, contains DUF3084 domain [Function unknown];


Pssm-ID: 443500 [Multi-domain]  Cd Length: 370  Bit Score: 52.60  E-value: 1.25e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  366 EKRRQALLEQQRKEQER---LAQLERAEQERKERERQ-EQERKRQLELEKQL-EKQRELERQREEERRKEIERREAAKRE 440
Cdd:COG4372     31 EQLRKALFELDKLQEELeqlREELEQAREELEQLEEElEQARSELEQLEEELeELNEQLQAAQAELAQAQEELESLQEEA 110
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  441 LERQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQdircRLTTQRQEIESTNKSREL- 519
Cdd:COG4372    111 EELQEELEELQKERQDLEQQRKQLEAQIAELQSEIAEREEELKELEEQLESLQEELA----ALEQELQALSEAEAEQALd 186
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  520 RIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQE 599
Cdd:COG4372    187 ELLKEANRNAEKEEELAEAEKLIESLPRELAEELLEAKDSLEAKLGLALSALLDALELEEDKEELLEEVILKEIEELELA 266
                          250       260       270       280       290       300       310
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  600 IDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDE 669
Cdd:COG4372    267 ILVEKDTEEEELEIAALELEALEEAALELKLLALLLNLAALSLIGALEDALLAALLELAKKLELALAILL 336
SH3_Cortactin_like cd11819
Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, ...
746-802 1.27e-06

Src homology 3 domain of Cortactin and related proteins; This subfamily includes cortactin, Abp1 (actin-binding protein 1), hematopoietic lineage cell-specific protein 1 (HS1), and similar proteins. These proteins are involved in regulating actin dynamics through direct or indirect interaction with the Arp2/3 complex, which is required to initiate actin polymerization. They all contain at least one C-terminal SH3 domain. Cortactin and HS1 bind Arp2/3 and actin through an N-terminal region that contains an acidic domain and several copies of a repeat domain found in cortactin and HS1. Abp1 binds actin via an N-terminal actin-depolymerizing factor (ADF) homology domain. Yeast Abp1 binds Arp2/3 directly through two acidic domains. Mammalian Abp1 does not directly interact with Arp2/3; instead, it regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. The C-terminal region of these proteins acts as an adaptor or scaffold that can connect membrane trafficking and signaling proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212753 [Multi-domain]  Cd Length: 54  Bit Score: 46.92  E-value: 1.27e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVmVKGEWVDEsqtgepGWLGGEL-KGKTGWFPANYAE 802
Cdd:cd11819      3 KALYDYQAAEDNEISFVEGDII-TQIEQIDE------GWWLGVNaKGQKGLFPANYVE 53
Myosin_tail_1 pfam01576
Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and ...
335-685 1.31e-06

Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and four light chains it is a fundamental contractile protein found in all eukaryote cell types. This family consists of the coiled-coil myosin heavy chain tail region. The coiled-coil is composed of the tail from two molecules of myosin. These can then assemble into the macromolecular thick filament. The coiled-coil region provides the structural backbone the thick filament.


Pssm-ID: 460256 [Multi-domain]  Cd Length: 1081  Bit Score: 53.64  E-value: 1.31e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEK---KLPVTFEDKKrENFERgnlELEKRRQALLEQQRKEQERLAQLE-RAEQERKERErQEQERKRQLELE 410
Cdd:pfam01576  704 LEDELQATEDaklRLEVNMQALK-AQFER---DLQARDEQGEEKRRQLVKQVRELEaELEDERKQRA-QAVAAKKKLELD 778
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  411 -KQLEKQRELERQREEERRKEIERREAAKRELerQRQLEWERNRRQELLNQ-RNKE-------------QEDIVVLKAKK 475
Cdd:pfam01576  779 lKELEAQIDAANKGREEAVKQLKKLQAQMKDL--QRELEEARASRDEILAQsKESEkklknleaellqlQEDLAASERAR 856
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  476 KTLEFELEALNDK-KHQLEGK--LQDIRCRLTTQRQEIESTNKSRELRIaeithlqqqlqesqqmlgrlipekQILNDQL 552
Cdd:pfam01576  857 RQAQQERDELADEiASGASGKsaLQDEKRRLEARIAQLEEELEEEQSNT------------------------ELLNDRL 912
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  553 -KQVQQNSLHRDSLVTLKRALEAKELARQHLRDQldevEKETRSKLQEIDifnNQLK----------ELREIHNKQQLQ- 620
Cdd:pfam01576  913 rKSTLQVEQLTTELAAERSTSQKSESARQQLERQ----NKELKAKLQEME---GTVKskfkssiaalEAKIAQLEEQLEq 985
                          330       340       350       360       370       380       390
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  621 --KQKSMEAERLKQKeqERKIIELEKQKEEAQRRAQE----------RDKQwLEHVQQEDEHQRPRKLHEEEKLKRE 685
Cdd:pfam01576  986 esRERQAANKLVRRT--EKKLKEVLLQVEDERRHADQykdqaekgnsRMKQ-LKRQLEEAEEEASRANAARRKLQRE 1059
SH3_STAM1 cd11964
Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal ...
746-800 1.33e-06

Src homology 3 domain of Signal Transducing Adaptor Molecule 1; STAM1 is part of the endosomal sorting complex required for transport (ESCRT-0) and is involved in sorting ubiquitinated cargo proteins from the endosome. It may also be involved in the regulation of IL2 and GM-CSF mediated signaling, and has been implicated in neural cell survival. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212897 [Multi-domain]  Cd Length: 55  Bit Score: 46.87  E-value: 1.33e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVkgewVDESqtgEPGWLGGELKGKTGWFPANY 800
Cdd:cd11964      4 RAIYDFEAAEDNELTFKAGDIITI----LDDS---DPNWWKGETPQGTGLFPSNF 51
sbcc TIGR00618
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
323-636 1.33e-06

exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 129705 [Multi-domain]  Cd Length: 1042  Bit Score: 53.43  E-value: 1.33e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  323 TSVDQRLPEE-PVLEDEQQQLEKKLPVTFEDKK------RENFERGNLELEKRRQALLEQQRKEQErlaQLERAEQERKE 395
Cdd:TIGR00618  576 TQCDNRSKEDiPNLQNITVRLQDLTEKLSEAEDmlaceqHALLRKLQPEQDLQDVRLHLQQCSQEL---ALKLTALHALQ 652
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  396 RERQEQERKRQLELEKQLEKQRELERQREEERRKEIERREAAKRELERQRQLEWeRNRRQELLNQRNKEQEDIVVLKAKK 475
Cdd:TIGR00618  653 LTLTQERVREHALSIRVLPKELLASRQLALQKMQSEKEQLTYWKEMLAQCQTLL-RELETHIEEYDREFNEIENASSSLG 731
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  476 KTLEFELEALNdkkhQLEGKLQDIRcRLTTQRQEIESTNKSRELRIAEIT-HLQQQLQESQQMLGRLIPEKQILNDQLK- 553
Cdd:TIGR00618  732 SDLAAREDALN----QSLKELMHQA-RTVLKARTEAHFNNNEEVTAALQTgAELSHLAAEIQFFNRLREEDTHLLKTLEa 806
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  554 QVQQNSLHRDSLVTLKRALEAKELArqhlrdQLDEVEKETRSKLQEIDifnNQLKELREihNKQQLQkQKSMEAERLKQK 633
Cdd:TIGR00618  807 EIGQEIPSDEDILNLQCETLVQEEE------QFLSRLEEKSATLGEIT---HQLLKYEE--CSKQLA-QLTQEQAKIIQL 874

                   ...
gi 1034627469  634 EQE 636
Cdd:TIGR00618  875 SDK 877
SH3_PLCgamma2 cd11969
Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in ...
1009-1055 1.33e-06

Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in haematopoietic cells, specifically in B cells. It is activated by tyrosine phosphorylation by B cell receptor (BCR) kinases and is recruited to the plasma membrane where its substrate is located. It is required in pre-BCR signaling and in the maturation of B cells. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212902  Cd Length: 55  Bit Score: 46.76  E-value: 1.33e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGDKAG-VFPSNYV 1055
Cdd:cd11969      4 ALYDYRAKRSDELSFCKGALIHnVSKETGGWWKGDYGGKVQhYFPSNYV 52
SH3_STAM2 cd11963
Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST ...
917-966 1.36e-06

Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST (Epidermal growth factor receptor-associated protein with SH3 and TAM domain) or Hbp (Hrs binding protein), is part of the endosomal sorting complex required for transport (ESCRT-0). It plays a role in sorting mono-ubiquinated endosomal cargo for trafficking to the lysosome for degradation. It is also involved in the regulation of exocytosis. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212896 [Multi-domain]  Cd Length: 57  Bit Score: 46.94  E-value: 1.36e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYV 966
Cdd:cd11963      3 KVRALYDFEAVEDNELTFKHGEIIIVLDDSDAnWWKGENHRGVGLFPSNFV 53
SH3_Cyk3p-like cd11889
Src Homology 3 domain of Cytokinesis protein 3 and similar proteins; Cytokinesis protein 3 ...
1009-1055 1.36e-06

Src Homology 3 domain of Cytokinesis protein 3 and similar proteins; Cytokinesis protein 3 (Cyk3 or Cyk3p) is a component of the actomyosin ring independent cytokinesis pathway in yeast. It interacts with Inn1 and facilitates its recruitment to the bud neck, thereby promoting cytokinesis. Cyk3p contains an N-terminal SH3 domain and a C-terminal transglutaminase-like domain. The Cyk3p SH3 domain binds to the C-terminal proline-rich region of Inn1. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212822  Cd Length: 53  Bit Score: 46.72  E-value: 1.36e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTK-KDGDWWTGT-VGDKA-GVFPSNYV 1055
Cdd:cd11889      4 AVYSWAGETEGDLGFLEGDLIEVLSiGDGSWWSGKlRRNGAeGIFPSNFV 53
SH3_FCHSD_1 cd11761
First Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
1158-1211 1.36e-06

First Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212695 [Multi-domain]  Cd Length: 57  Bit Score: 46.97  E-value: 1.36e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1158 CQVIgmYDYTAQNDDELAFNKGQIINVLNKEDPD-WWKG-EVNGQVGLFPSNYVKL 1211
Cdd:cd11761      4 CKVL--YSYEAQRPDELTITEGEELEVIEDGDGDgWVKArNKSGEVGYVPENYLQF 57
SH3_Nck_1 cd11765
First Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
1160-1209 1.38e-06

First Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The first SH3 domain of Nck proteins preferentially binds the PxxDY sequence, which is present in the CD3e cytoplasmic tail. This binding inhibits phosphorylation by Src kinases, resulting in the downregulation of TCR surface expression. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212699 [Multi-domain]  Cd Length: 51  Bit Score: 46.64  E-value: 1.38e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPdWWKGE-VNGQVGLFPSNYV 1209
Cdd:cd11765      2 VVAKYDYTAQGDQELSIKKNEKLTLLDDSKH-WWKVQnSSNQTGYVPSNYV 51
SH3_Tks4_2 cd12076
Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also ...
745-803 1.47e-06

Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also called SH3 and PX domain-containing protein 2B (SH3PXD2B) or HOFI, is a Src substrate and scaffolding protein that plays an important role in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. It is required in the formation of functional podosomes, EGF-induced membrane ruffling, and lamellipodia generation. It plays an important role in cellular attachment and cell spreading. Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. It contains an N-terminal Phox homology (PX) domain and four SH3 domains. This model characterizes the second SH3 domain of Tks4. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213009 [Multi-domain]  Cd Length: 54  Bit Score: 46.95  E-value: 1.47e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd12076      3 YTVIYPYTARDQDEINLEKGAVVEV-------IQKNLEGWWKIRYQGKEGWAPASYLKK 54
SH3_GRAP2_N cd11947
N-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
917-966 1.52e-06

N-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also have roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The N-terminal SH3 domain of the related protein GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212880 [Multi-domain]  Cd Length: 52  Bit Score: 46.71  E-value: 1.52e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11947      1 EARGKFDFTASGEDELSFKKGDVLKILSSDDIWFKAELNGEEGYVPKNFV 50
SH3_Nck1_3 cd11904
Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
919-968 1.56e-06

Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212837 [Multi-domain]  Cd Length: 57  Bit Score: 46.95  E-value: 1.56e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQD---MWW-FGEVQGQKGWFPKSYVKL 968
Cdd:cd11904      4 QALYPFSSSNDEELNFEKGEVMDVIEKPEndpEWWkCRKANGQVGLVPKNYVTV 57
SH3_Nebulette_C cd11935
C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a ...
745-804 1.57e-06

C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a cardiac-specific protein that localizes to the Z-disc. It interacts with tropomyosin and is important in stabilizing actin thin filaments in cardiac muscles. Polymorphisms in the nebulette gene are associated with dilated cardiomyopathy, with some mutations resulting in severe heart failure. Nebulette is a 107kD protein that contains an N-terminal acidic region, multiple nebulin repeats, and a C-terminal SH3 domain. LIM-nebulette, also called Lasp2 (LIM and SH3 domain protein 2), is an alternatively spliced variant of nebulette. Although it shares a gene with nebulette, Lasp2 is not transcribed from a muscle-specific promoter, giving rise to its multiple tissue expression pattern with highest amounts in the brain. It can crosslink actin filaments and it affects cell spreading. Lasp2 is a 34kD protein containing an N-terminal LIM domain, three nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212868 [Multi-domain]  Cd Length: 58  Bit Score: 46.92  E-value: 1.57e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVmVKGEWVDEsqtgepGWLGGELK--GKTGWFPANYAEKI 804
Cdd:cd11935      3 YRAMYDYSAQDEDEVSFRDGDYI-VNVQPIDE------GWMYGTVQrtGRTGMLPANYIEFV 57
SH3_SH3RF1_1 cd11927
First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ...
918-968 1.65e-06

First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212860  Cd Length: 54  Bit Score: 46.48  E-value: 1.65e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11927      3 AKALYNYEGKEPGDLKFSKGDIIILRRQVDEnWYHGEVNGIHGFFPTNFVQI 54
SH3_Pex13p_fungal cd11771
Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the ...
918-966 1.83e-06

Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the peroxisomal membrane, contains two transmembrane regions and a C-terminal SH3 domain. It binds to the peroxisomal targeting type I (PTS1) receptor Pex5p and the docking factor Pex14p through its SH3 domain. It is essential for both PTS1 and PTS2 protein import pathways into the peroxisomal matrix. Pex13p binds Pex14p, which contains a PxxP motif, in a classical fashion to the proline-rich ligand binding site of its SH3 domain. It binds the WxxxF/Y motif of Pex5p in a novel site that does not compete with Pex14p binding. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212705 [Multi-domain]  Cd Length: 60  Bit Score: 46.50  E-value: 1.83e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  918 AQALYPWRAKKD-NHLNFNKNDVITVLEQQDM------WWFGEVQ-GQKGWFPKSYV 966
Cdd:cd11771      2 CRALYDFTPENPeMELSLKKGDIVAVLSKTDPlgrdseWWKGRTRdGRIGWFPSNYV 58
SH3_BAIAP2L2 cd11914
Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 2; ...
932-967 1.89e-06

Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 2; BAIAP2L2 co-localizes with clathrin plaques but its function has not been determined. It contains an N-terminal IMD or Inverse-Bin/Amphiphysin/Rvs (I-BAR) domain, an SH3 domain, and a WASP homology 2 (WH2) actin-binding motif at the C-terminus. The related proteins, BAIAP2L1 and IRSp53, function as regulators of membrane dynamics and the actin cytoskeleton. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212847 [Multi-domain]  Cd Length: 59  Bit Score: 46.73  E-value: 1.89e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|
gi 1034627469  932 LNFNKNDVITVL--EQQDMWWFGEVQG--QKGWFPKSYVK 967
Cdd:cd11914     18 LRFNRGDIITVLvpEARNGWLYGKLEGssRQGWFPEAYVK 57
SH3_9 pfam14604
Variant SH3 domain;
1081-1134 1.89e-06

Variant SH3 domain;


Pssm-ID: 434066 [Multi-domain]  Cd Length: 49  Bit Score: 46.07  E-value: 1.89e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELqaRGKKrqiGWFPANYVK 1134
Cdd:pfam14604    1 ALYPYEPKDDDELSLQRGDVITVIEESEDGWWEGIN--TGRT---GLVPANYVE 49
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
335-612 1.90e-06

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 53.15  E-value: 1.90e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLP------VTFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERA------EQERKErerqEQE 402
Cdd:TIGR02169  249 LEEELEKLTEEISelekrlEEIEQLLEELNKKIKDLGEEEQLRVKEKIGELEAEIASLERSiaekerELEDAE----ERL 324
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  403 RKRQLELEKQLEKqrelerqreeerrkeierREAAKRELERQR----QLEWE----RNRRQELLNQRNKEQEDIVVLKAK 474
Cdd:TIGR02169  325 AKLEAEIDKLLAE------------------IEELEREIEEERkrrdKLTEEyaelKEELEDLRAELEEVDKEFAETRDE 386
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  475 KKTLEFELEALNDKKHQLEG---KLQDIRCRLTTQRQEIESTNKSRELRIAEithlqqqlqesqqmlgrLIPEKQILNDQ 551
Cdd:TIGR02169  387 LKDYREKLEKLKREINELKReldRLQEELQRLSEELADLNAAIAGIEAKINE-----------------LEEEKEDKALE 449
                          250       260       270       280       290       300
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  552 LKQVQQNslhrdsLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELRE 612
Cdd:TIGR02169  450 IKKQEWK------LEQLAADLSKYEQELYDLKEEYDRVEKELSKLQRELAEAEAQARASEE 504
SH3_Sorbs_2 cd11782
Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
1006-1055 1.93e-06

Second Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the second SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212716 [Multi-domain]  Cd Length: 53  Bit Score: 46.19  E-value: 1.93e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11782      1 EARAKYNFNADTGVELSFRKGDVITLTRRvDENWYEGRIGGRQGIFPVSYV 51
SH3_Nck2_2 cd11902
Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
1079-1133 1.94e-06

Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212835 [Multi-domain]  Cd Length: 55  Bit Score: 46.54  E-value: 1.94e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQArgkkrQIGWFPANYV 1133
Cdd:cd11902      3 AFVKFAYVAEREDELSLVKGSRVTVMEKCSDGWWRGSYNG-----QIGWFPSNYV 52
SH3_GAS7 cd11829
Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the ...
1163-1209 1.97e-06

Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the brain and is required for neurite outgrowth. It may also play a role in the protection and migration of embryonic stem cells. Treatment-related acute myeloid leukemia (AML) has been reported resulting from mixed-lineage leukemia (MLL)-GAS7 translocations as a complication of primary cancer treatment. GAS7 contains an N-terminal SH3 domain, followed by a WW domain, and a central F-BAR domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212763 [Multi-domain]  Cd Length: 52  Bit Score: 46.35  E-value: 1.97e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1163 MYDYTA-QNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11829      5 LYAFTGeQHQQGLSFEAGELIRVLQAPDGGWWEGEKDGLRGWFPASYV 52
C2B_Synaptotagmin cd00276
C2 domain second repeat present in Synaptotagmin; Synaptotagmin is a membrane-trafficking ...
1596-1680 1.97e-06

C2 domain second repeat present in Synaptotagmin; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. There are several classes of Synaptotagmins. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 175975 [Multi-domain]  Cd Length: 134  Bit Score: 48.73  E-value: 1.97e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHI-----TKTIQDTLNPKWNsncQFFIRDLEQE-----VLCITVFE 1665
Cdd:cd00276     14 ERLTVVVLKARNLPPSDGKGLSDPYVKVSLLQGGKKlkkkkTSVKKGTLNPVFN---EAFSFDVPAEqleevSLVITVVD 90
                           90
                   ....*....|....*
gi 1034627469 1666 RDQFSPDDFLGRTEI 1680
Cdd:cd00276     91 KDSVGRNEVIGQVVL 105
SH3_Vinexin_3 cd11918
Third (or C-terminal) Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain ...
1163-1209 1.97e-06

Third (or C-terminal) Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212851 [Multi-domain]  Cd Length: 58  Bit Score: 46.49  E-value: 1.97e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKG--EVNGQVGLFPSNYV 1209
Cdd:cd11918      7 VYQYRPQNEDELELREGDRVDVMQQCDDGWFVGvsRRTQKFGTFPGNYV 55
SH3_GRAF cd12064
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase; GRAF, also ...
1162-1211 2.06e-06

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase; GRAF, also called Rho GTPase activating protein 26 (ARHGAP26), Oligophrenin-1-like (OPHN1L) or GRAF1, is a GAP with activity towards RhoA and Cdc42 and is only weakly active towards Rac1. It influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase (FAK), which is a critical component of integrin signaling. It is essential for the major clathrin-independent endocytic pathway mediated by pleiomorphic membranes. GRAF contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212997  Cd Length: 56  Bit Score: 46.65  E-value: 2.06e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1162 GMYDYTAQNDDELAFNKGQII-NVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd12064      5 ALYACKAEHDSELSFTAGTVFdNVHPSQEPGWLEGTLNGKTGLIPENYVEF 55
SH3_VAV1_2 cd11976
C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly ...
1085-1134 2.07e-06

C-terminal (or second) Src homology 3 domain of VAV1 protein; VAV1 is expressed predominantly in the hematopoietic system and it plays an important role in the development and activation of B and T cells. It is activated by tyrosine phosphorylation to function as a guanine nucleotide exchange factor (GEF) for Rho GTPases following cell surface receptor activation, triggering various effects such as cytoskeletal reorganization, transcription regulation, cell cycle progression, and calcium mobilization. It also serves as a scaffold protein and has been shown to interact with Ku70, Socs1, Janus kinase 2, SIAH2, S100B, Abl gene, ZAP-70, SLP76, and Syk, among others. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The C-terminal SH3 domain of Vav1 interacts with a wide variety of proteins including cytoskeletal regulators (zyxin), RNA-binding proteins (Sam68), transcriptional regulators, viral proteins, and dynamin 2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212909 [Multi-domain]  Cd Length: 54  Bit Score: 46.48  E-value: 2.07e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1085 YTATGPEQLTLAPGQLI-LIRKKNPGGWWEGELQARgkkrqIGWFPANYVK 1134
Cdd:cd11976      8 FCARDRSELSLKEGDIIkILNKKGQQGWWRGEIYGR-----VGWFPANYVE 53
SMC_prok_B TIGR02168
chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of ...
325-610 2.20e-06

chromosome segregation protein SMC, common bacterial type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. This family represents the SMC protein of most bacteria. The smc gene is often associated with scpB (TIGR00281) and scpA genes, where scp stands for segregation and condensation protein. SMC was shown (in Caulobacter crescentus) to be induced early in S phase but present and bound to DNA throughout the cell cycle. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274008 [Multi-domain]  Cd Length: 1179  Bit Score: 52.75  E-value: 2.20e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  325 VDQRLPEEPVLEDEQQQLEKKLPVTFEDKKRENFERGnlELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERK 404
Cdd:TIGR02168  749 IAQLSKELTELEAEIEELEERLEEAEEELAEAEAEIE--ELEAQIEQLKEELKALREALDELRAELTLLNEEAANLRERL 826
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  405 RQLELEKQLEKQRELERQREEERRKEIERREAAKRElERQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEA 484
Cdd:TIGR02168  827 ESLERRIAATERRLEDLEEQIEELSEDIESLAAEIE-ELEELIEELESELEALLNERASLEEALALLRSELEELSEELRE 905
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  485 LNDKKHQLEGKLQDIRCRLTTQRQEIESTnksrELRIAEIThlqQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRds 564
Cdd:TIGR02168  906 LESKRSELRRELEELREKLAQLELRLEGL----EVRIDNLQ---ERLSEEYSLTLEEAEALENKIEDDEEEARRRLKR-- 976
                          250       260       270       280       290       300       310
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  565 lvtLKRAL------------EAKEL----------------ARQHLRDQLDEVEKETRSKLQE-IDIFNNQLKEL 610
Cdd:TIGR02168  977 ---LENKIkelgpvnlaaieEYEELkerydfltaqkedlteAKETLEEAIEEIDREARERFKDtFDQVNENFQRV 1048
SH3_SH3RF_1 cd11786
First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
744-802 2.22e-06

First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212720 [Multi-domain]  Cd Length: 53  Bit Score: 46.20  E-value: 2.22e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKGEwVDESqtgepgWLGGELKGKTGWFPANYAE 802
Cdd:cd11786      1 CAKALYNYEGKEPGDLSFKKGDIILLRKR-IDEN------WYHGECNGKQGFFPASYVQ 52
PTZ00266 PTZ00266
NIMA-related protein kinase; Provisional
325-415 2.26e-06

NIMA-related protein kinase; Provisional


Pssm-ID: 173502 [Multi-domain]  Cd Length: 1021  Bit Score: 52.82  E-value: 2.26e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  325 VDQRLPEEPVLEDEQQQlEKKLPVTFEDKKR-ENFERGNLE-LEKRRQALLEQQRKEQERLAQlERAEQERKERERQEQ- 401
Cdd:PTZ00266   430 VDKDHAERARIEKENAH-RKALEMKILEKKRiERLEREERErLERERMERIERERLERERLER-ERLERDRLERDRLDRl 507
                           90
                   ....*....|....*
gi 1034627469  402 ERKRQLELEK-QLEK 415
Cdd:PTZ00266   508 ERERVDRLERdRLEK 522
SH3_CIN85_1 cd12052
First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1085-1134 2.26e-06

First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CIN85; SH3A binds to internal proline-rich motifs within the proline-rich region. This intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. SH3A has also been shown to bind ubiquitin and to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic end of the cell adhesion protein CD2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212985 [Multi-domain]  Cd Length: 53  Bit Score: 46.04  E-value: 2.26e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGkkrqiGWFPANYVK 1134
Cdd:cd12052      8 YKAQHEDELTITVGDIITKIKKDDGGWWEGEIKGRR-----GLFPDNFVR 52
COG1340 COG1340
Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];
384-686 2.28e-06

Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];


Pssm-ID: 440951 [Multi-domain]  Cd Length: 297  Bit Score: 51.45  E-value: 2.28e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  384 AQLERAEQERKE-RERQEQERKRQLELEKQLEKqrelerqreeerrkeierrEAAKRELERQrQLEWERNRRQELLNQRN 462
Cdd:COG1340      8 SSLEELEEKIEElREEIEELKEKRDELNEELKE-------------------LAEKRDELNA-QVKELREEAQELREKRD 67
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  463 KEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCR---LTTQRQEIE-----------STNKSREL--RIAEIth 526
Cdd:COG1340     68 ELNEKVKELKEERDELNEKLNELREELDELRKELAELNKAggsIDKLRKEIErlewrqqtevlSPEEEKELveKIKEL-- 145
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  527 lqqqlqesqqmlgrlipeKQILNDQLKQVQQnslHRDSLVTLKRALEAKELARQH------LRDQLDEVEKETRSKLQEI 600
Cdd:COG1340    146 ------------------EKELEKAKKALEK---NEKLKELRAELKELRKEAEEIhkkikeLAEEAQELHEEMIELYKEA 204
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  601 DIFNnqlKELREIHnKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAqrraqeRDKQWLEHVQQEDEHQRPRKLHEEE 680
Cdd:COG1340    205 DELR---KEADELH-KEIVEAQEKADELHEEIIELQKELRELRKELKKL------RKKQRALKREKEKEELEEKAEEIFE 274

                   ....*.
gi 1034627469  681 KLKREE 686
Cdd:COG1340    275 KLKKGE 280
SH3_Stac_1 cd11833
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) ...
744-803 2.33e-06

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) proteins; Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. This model represents the first C-terminal SH3 domain of Stac1 and Stac3, and the single C-terminal SH3 domain of Stac2. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212767 [Multi-domain]  Cd Length: 53  Bit Score: 46.34  E-value: 2.33e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVkgewVDESqtgEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11833      1 TYVALYKFKPQENEDLEMRPGDKITL----LDDS---NEDWWKGKIEDRVGFFPANFVQR 53
SH3_PI3K_p85 cd11776
Src Homology 3 domain of the p85 regulatory subunit of Class IA Phosphatidylinositol 3-kinases; ...
745-802 2.41e-06

Src Homology 3 domain of the p85 regulatory subunit of Class IA Phosphatidylinositol 3-kinases; Class I PI3Ks convert PtdIns(4,5)P2 to the critical second messenger PtdIns(3,4,5)P3. They are heterodimers and exist in multiple isoforms consisting of one catalytic subunit (out of four isoforms) and one of several regulatory subunits. Class IA PI3Ks associate with the p85 regulatory subunit family, which contains SH3, RhoGAP, and SH2 domains. The p85 subunits recruit the PI3K p110 catalytic subunit to the membrane, where p110 phosphorylates inositol lipids. Vertebrates harbor two p85 isoforms, called alpha and beta. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212710  Cd Length: 72  Bit Score: 46.73  E-value: 2.41e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVKG--------EWVDESQTGEPGWLGG--ELKGKTGWFPANYAE 802
Cdd:cd11776      3 YRALYDYEKERDEDIILKTGDVLVVENpellalgvPDGKETVPKPEGWLEGknERTGERGDFPGTYVE 70
SH3_SNX9_like cd11763
Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox ...
1009-1055 2.44e-06

Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. This subfamily consists of SH3 domain containing SNXs including SNX9, SNX18, SNX33, and similar proteins. SNX9 is localized to plasma membrane endocytic sites and acts primarily in clathrin-mediated endocytosis, while SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212697 [Multi-domain]  Cd Length: 55  Bit Score: 46.17  E-value: 2.44e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKD--GDWWTG-TVGDKAGVFPSNYV 1055
Cdd:cd11763      4 ALYDFDSQPSGELSLRAGEVLTITRQDvgDGWLEGrNSRGEVGLFPSSYV 53
SH3_CD2AP-like_2 cd11874
Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This ...
746-802 2.45e-06

Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This subfamily is composed of the second SH3 domain (SH3B) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3B of both proteins have been shown to bind to Cbl. In the case of CD2AP, its SH3B binds to Cbl at a site distinct from the c-Cbl/SH3A binding site. The CIN85 SH3B also binds ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212807 [Multi-domain]  Cd Length: 53  Bit Score: 46.17  E-value: 2.45e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVmvkgEWVDESqtgEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11874      3 KVLFSYTPQNEDELELKVGDTI----EVLGEV---EEGWWEGKLNGKVGVFPSNFVK 52
DR0291 COG1579
Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General ...
562-686 2.50e-06

Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General function prediction only];


Pssm-ID: 441187 [Multi-domain]  Cd Length: 236  Bit Score: 50.69  E-value: 2.50e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  562 RDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREihNKQQLQKQKSMEAERLKQKEQERKIIE 641
Cdd:COG1579     37 EDELAALEARLEAAKTELEDLEKEIKRLELEIEEVEARIKKYEEQLGNVRN--NKEYEALQKEIESLKRRISDLEDEILE 114
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*
gi 1034627469  642 LEKQKEEAQRRAQERDKQwLEHVQQEDEHQRPRKLHEEEKLKREE 686
Cdd:COG1579    115 LMERIEELEEELAELEAE-LAELEAELEEKKAELDEELAELEAEL 158
SH3_MPP1 cd12080
Src Homology 3 domain of Membrane Protein, Palmitoylated 1 (or MAGUK p55 subfamily member 1); ...
1162-1206 2.51e-06

Src Homology 3 domain of Membrane Protein, Palmitoylated 1 (or MAGUK p55 subfamily member 1); MPP1, also called 55 kDa erythrocyte membrane protein (p55), is a ubiquitously-expressed scaffolding protein that plays roles in regulating neutrophil polarity, cell shape, hair cell development, and neural development and patterning of the retina. It was originally identified as an erythrocyte protein that stabilizes the actin cytoskeleton to the plasma membrane by forming a complex with 4.1R protein and glycophorin C. MPP1 is one of seven vertebrate homologs of the Drosophila Stardust protein, which is required in establishing cell polarity, and it contains the three domains characteristic of MAGUK (membrane-associated guanylate kinase) proteins: PDZ, SH3, and guanylate kinase (GuK). In addition, it also contains the Hook (Protein 4.1 Binding) motif in between the SH3 and GuK domains. The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213013  Cd Length: 62  Bit Score: 46.49  E-value: 2.51e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1162 GMYDYTAQNDD-------ELAFNKGQIINVLNKEDPDWWKGEVNGQ----VGLFPS 1206
Cdd:cd12080      4 AQFDYDPKKDNlipckeaGLKFQTGDIIQIINKDDSNWWQGRVEGSgeesAGLIPS 59
SH3_Cortactin cd11959
Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src ...
1008-1057 2.65e-06

Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src kinase. It is an actin regulatory protein that binds to the Arp2/3 complex and stabilizes branched actin filaments. It is involved in cellular processes that affect cell motility, adhesion, migration, endocytosis, and invasion. It is expressed ubiquitously except in hematopoietic cells, where the homolog hematopoietic lineage cell-specific 1 (HS1) is expressed instead. Cortactin contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region interacts with the Arp2/3 complex and F-actin, and is crucial in regulating branched actin assembly. Cortactin also serves as a scaffold and provides a bridge to the actin cytoskeleton for membrane trafficking and signaling proteins that bind to its SH3 domain. Binding partners for the SH3 domain of cortactin include dynamin2, N-WASp, MIM, FGD1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212892 [Multi-domain]  Cd Length: 53  Bit Score: 45.87  E-value: 2.65e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11959      3 VALYDYQAADDDEISFDPDDIITnIEMIDEGWWRGVCRGKYGLFPANYVEL 53
Mplasa_alph_rch TIGR04523
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
335-681 2.65e-06

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.


Pssm-ID: 275316 [Multi-domain]  Cd Length: 745  Bit Score: 52.33  E-value: 2.65e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLpvtfeDKKRENFERGNLELEKRRQALL---EQQRKEQERLA----QLERAEQERKERERQEQERKRQL 407
Cdd:TIGR04523  223 LKKQNNQLKDNI-----EKKQQEINEKTTEISNTQTQLNqlkDEQNKIKKQLSekqkELEQNNKKIKELEKQLNQLKSEI 297
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  408 -------------ELEKQLEKQRELERQREEERRKEIERREAAKREL---------------ERQRQLEWERNRRQELLN 459
Cdd:TIGR04523  298 sdlnnqkeqdwnkELKSELKNQEKKLEEIQNQISQNNKIISQLNEQIsqlkkeltnsesensEKQRELEEKQNEIEKLKK 377
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  460 QRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEIThlqqqlqesqqmlg 539
Cdd:TIGR04523  378 ENQSYKQEIKNLESQINDLESKIQNQEKLNQQKDEQIKKLQQEKELLEKEIERLKETIIKNNSEIK-------------- 443
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  540 RLIPEKQILNDQLKQVQQnslHRDSlvtLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREihNKQQL 619
Cdd:TIGR04523  444 DLTNQDSVKELIIKNLDN---TRES---LETQLKVLSRSINKIKQNLEQKQKELKSKEKELKKLNEEKKELEE--KVKDL 515
                          330       340       350       360       370       380
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  620 QKQKSMEAERLKQ-----KEQERKIIELEKQKEEAQrraQERDKQWLEHVQQEDEhQRPRKLHEEEK 681
Cdd:TIGR04523  516 TKKISSLKEKIEKlesekKEKESKISDLEDELNKDD---FELKKENLEKEIDEKN-KEIEELKQTQK 578
SH3_D21-like cd12142
Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; ...
1010-1055 2.67e-06

Src Homology 3 domain of SH3 domain-containing protein 21 (SH3D21) and similar proteins; N-terminal SH3 domain of the uncharacterized protein SH3 domain-containing protein 21, and similar uncharacterized domains, it belongs to the CD2AP-like_3 subfamily of proteins. The CD2AP-like_3 subfamily is composed of the third SH3 domain (SH3C) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3C of both proteins have been shown to bind to ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213018 [Multi-domain]  Cd Length: 55  Bit Score: 45.92  E-value: 2.67e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1010 MYTYESSEQGDLTFQQGDVILVTKK---DGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd12142      5 LFDYNPVAPDELALKKGDVIEVISKeteDEGWWEGELNGRRGFFPDNFV 53
SH3_ASPP cd11807
Src homology 3 domain of Apoptosis Stimulating of p53 proteins (ASPP); The ASPP family of ...
1009-1057 2.73e-06

Src homology 3 domain of Apoptosis Stimulating of p53 proteins (ASPP); The ASPP family of proteins bind to important regulators of apoptosis (p53, Bcl-2, and RelA) and cell growth (APCL, PP1). They share similarity at their C-termini, where they harbor a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain. Vertebrates contain three members of the family: ASPP1, ASPP2, and iASPP. ASPP1 and ASPP2 activate the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73), while iASPP is an oncoprotein that specifically inhibits p53-induced apoptosis. The expression of ASPP proteins is altered in tumors; ASPP1 and ASPP2 are downregulated whereas iASPP is upregulated is some cancer types. ASPP proteins also bind and regulate protein phosphatase 1 (PP1), and this binding is competitive with p53 binding. The SH3 domain and the ANK repeats of ASPP contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212741 [Multi-domain]  Cd Length: 57  Bit Score: 46.22  E-value: 2.73e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKDGD----WWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11807      5 ALFDYEAENGDELSFREGDELTVLRKGDDdeteWWWARLNDKEGYVPRNLLGL 57
SH3_GRAP2_C cd11950
C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
746-802 2.75e-06

C-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also has roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRAP2 binds to different motifs found in substrate peptides including the typical PxxP motif in hematopoietic progenitor kinase 1 (HPK1), the RxxK motif in SLP-76 and HPK1, and the RxxxxK motif in phosphatase-like protein HD-PTP. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212883 [Multi-domain]  Cd Length: 53  Bit Score: 45.97  E-value: 2.75e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVkgewVDESqtgEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11950      3 RALYDFEALEDDELGFNSGDVIEV----LDSS---NPSWWKGRLHGKLGLFPANYVA 52
SH3_Tks4_2 cd12076
Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also ...
920-967 2.75e-06

Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also called SH3 and PX domain-containing protein 2B (SH3PXD2B) or HOFI, is a Src substrate and scaffolding protein that plays an important role in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. It is required in the formation of functional podosomes, EGF-induced membrane ruffling, and lamellipodia generation. It plays an important role in cellular attachment and cell spreading. Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. It contains an N-terminal Phox homology (PX) domain and four SH3 domains. This model characterizes the second SH3 domain of Tks4. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213009 [Multi-domain]  Cd Length: 54  Bit Score: 46.18  E-value: 2.75e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQ-DMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd12076      5 VIYPYTARDQDEINLEKGAVVEVIQKNlEGWWKIRYQGKEGWAPASYLK 53
SH3_Intersectin_2 cd11837
Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor ...
1008-1057 2.77e-06

Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212771 [Multi-domain]  Cd Length: 53  Bit Score: 45.82  E-value: 2.77e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTGTV-GDKAGVFPSNYVRL 1057
Cdd:cd11837      3 TALYPWRAKKENHLSFAKGDIITVLEQQEMWWFGELeGGEEGWFPKSYVKE 53
DR0291 COG1579
Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General ...
451-638 2.95e-06

Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General function prediction only];


Pssm-ID: 441187 [Multi-domain]  Cd Length: 236  Bit Score: 50.31  E-value: 2.95e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  451 RNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEithlqqq 530
Cdd:COG1579     23 EHRLKELPAELAELEDELAALEARLEAAKTELEDLEKEIKRLELEIEEVEARIKKYEEQLGNVRNNKEYEALQ------- 95
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  531 lqesqqmlgrlipeKQIlnDQLKQvqQNSLHRDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKEL 610
Cdd:COG1579     96 --------------KEI--ESLKR--RISDLEDEILELMERIEELEEELAELEAELAELEAELEEKKAELDEELAELEAE 157
                          170       180
                   ....*....|....*....|....*...
gi 1034627469  611 REIHNKQQLQKQKSMEAERLKQKEQERK 638
Cdd:COG1579    158 LEELEAEREELAAKIPPELLALYERIRK 185
SH3_PACSIN1-2 cd11998
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) ...
743-802 2.98e-06

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) and PACSIN 2; PACSIN 1 or Syndapin I (Synaptic dynamin-associated protein I) is expressed specifically in the brain and is localized in neurites and synaptic boutons. It binds the brain-specific proteins dynamin I, synaptojanin, synapsin I, and neural Wiskott-Aldrich syndrome protein (nWASP), and functions as a link between the cytoskeletal machinery and synaptic vesicle endocytosis. PACSIN 1 interacts with huntingtin and may be implicated in the neuropathology of Huntington's disease. PACSIN 2 or Syndapin II is expressed ubiquitously and is involved in the regulation of tubulin polymerization. It associates with Golgi membranes and forms a complex with dynamin II which is crucial in promoting vesicle formation from the trans-Golgi network. PACSINs act as regulators of cytoskeletal and membrane dynamics. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212931 [Multi-domain]  Cd Length: 56  Bit Score: 46.10  E-value: 2.98e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  743 VYYRALYPFESRSHDEITIQPGDivmvkgEWVDESQTGEPGWLGGEL-KGKTGWFPANYAE 802
Cdd:cd11998      1 VRVRALYDYDGQEQDELSFKAGD------ELTKLEDEDEQGWCKGRLdSGQVGLYPANYVE 55
DUF4670 pfam15709
Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins ...
335-466 3.07e-06

Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins in this family are typically between 373 and 763 amino acids in length.


Pssm-ID: 464815 [Multi-domain]  Cd Length: 522  Bit Score: 51.88  E-value: 3.07e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLPVTfedKKRENFERGNLELEKRRQALLEQQRKEQERLAQLE--------RAEQERKERERQEQERKRQ 406
Cdd:pfam15709  378 LELEQQRRFEEIRLR---KQRLEEERQRQEEEERKQRLQLQAAQERARQQQEEfrrklqelQRKKQQEEAERAEAEKQRQ 454
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  407 LELEKQLEKQrelerqreeerrKEIERREAAKRELERQRQ-LEWERNRRQELLNQRNKEQE 466
Cdd:pfam15709  455 KELEMQLAEE------------QKRLMEMAEEERLEYQRQkQEAEEKARLEAEERRQKEEE 503
SH3_Nebulin_C cd11933
C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 ...
745-804 3.07e-06

C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 kD) that is expressed abundantly in skeletal muscle. It binds to actin thin filaments and regulates its assembly and function. Nebulin was thought to be part of a molecular ruler complex that is critical in determining the lengths of actin thin filaments in skeletal muscle since its length, which varies due to alternative splicing, correlates with the length of thin filaments in various muscle types. Recent studies indicate that nebulin regulates thin filament length by stabilizing the filaments and preventing depolymerization. Mutations in nebulin can cause nemaline myopathy, characterized by muscle weakness which can be severe and can lead to neonatal lethality. Nebulin contains an N-terminal LIM domain, many nebulin repeats/super repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212866 [Multi-domain]  Cd Length: 58  Bit Score: 46.15  E-value: 3.07e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMvkgewvdESQTGEPGWLGGELK--GKTGWFPANYAEKI 804
Cdd:cd11933      4 FRAMYDYRAADDDEVSFKDGDTIV-------NVQTIDEGWMYGTVQrtGKTGMLPANYVEAI 58
SH3_GRAF-like cd11882
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar ...
1009-1057 3.11e-06

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar proteins; This subfamily is composed of Rho GTPase activating proteins (GAPs) with similarity to GRAF. Members contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. Although vertebrates harbor four Rho GAPs in the GRAF subfamily including GRAF, GRAF2, GRAF3, and Oligophrenin-1 (OPHN1), only three are included in this model. OPHN1 contains the BAR, PH and GAP domains, but not the C-terminal SH3 domain. GRAF and GRAF2 show GAP activity towards RhoA and Cdc42. GRAF influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase. GRAF2 regulates caspase-activated p21-activated protein kinase-2. The SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212815 [Multi-domain]  Cd Length: 54  Bit Score: 45.75  E-value: 3.11e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVI--LVTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11882      4 ALYACKAEDESELSFEPGQIItnVQPSDEPGWLEGTLNGRTGLIPENYVEF 54
SH3_ASPP1 cd11954
Src Homology 3 domain of Apoptosis Stimulating of p53 protein 1; ASPP1, like ASPP2, activates ...
1009-1057 3.15e-06

Src Homology 3 domain of Apoptosis Stimulating of p53 protein 1; ASPP1, like ASPP2, activates the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73). In addition, it functions in the cytoplasm to regulate the nuclear localization of the transcriptional cofactors YAP and TAZ by inihibiting their phosphorylation; YAP and TAZ are important regulators of cell expansion, differentiation, migration, and invasion. ASPP1 is downregulated in breast tumors expressing wild-type p53. It contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of ASPP1 contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212887 [Multi-domain]  Cd Length: 57  Bit Score: 45.78  E-value: 3.15e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK----DGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11954      5 ALWDYEAQNADELSFQEGDAITILRRkddsETEWWWARLNDKEGYVPKNLLGL 57
SH3_MLK4 cd12058
Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), ...
1081-1133 3.35e-06

Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. The specific function of MLK4 is yet to be determined. Mutations in the kinase domain of MLK4 have been detected in colorectal cancers. MLK4 contains an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212991 [Multi-domain]  Cd Length: 58  Bit Score: 46.09  E-value: 3.35e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPG-----GWWEGELQARgkkrqIGWFPANYV 1133
Cdd:cd12058      4 ALYDYEASGEDELSLRRGDVVEVLSQDAAvsgddGWWAGKIRHR-----LGIFPANYV 56
SH3_p40phox cd11869
Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil ...
1009-1057 3.43e-06

Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil cytosol factor 4 (NCF-4), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p40phox positively regulates NADPH oxidase in both phosphatidylinositol-3-phosphate (PI3P)-dependent and PI3P-independent manner. It contains an N-terminal PX domain, a central SH3 domain, and a C-terminal PB1 domain that interacts with p67phox. The SH3 domain of p40phox binds to canonical polyproline and noncanonical motifs at the C-terminus of p47phox. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212802  Cd Length: 54  Bit Score: 45.56  E-value: 3.43e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11869      4 ALFDFTGNSKLELNFKAGDVIfLLSRVNKDWLEGTVRGATGIFPLSFVKI 53
COG4913 COG4913
Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];
367-656 3.43e-06

Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];


Pssm-ID: 443941 [Multi-domain]  Cd Length: 1089  Bit Score: 52.22  E-value: 3.43e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  367 KRRQALLEQQRKE-QERLAQLERAEQERKERERQEQERKRQLE-LEKQLEKQrelerqreeerrkeiERREAAKRELERQ 444
Cdd:COG4913    609 RAKLAALEAELAElEEELAEAEERLEALEAELDALQERREALQrLAEYSWDE---------------IDVASAEREIAEL 673
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  445 RQlewernRRQELLnqrnKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIEstnksRELRIAEI 524
Cdd:COG4913    674 EA------ELERLD----ASSDDLAALEEQLEELEAELEELEEELDELKGEIGRLEKELEQAEEELD-----ELQDRLEA 738
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  525 THLQQQLQESQQMLGRLipeKQILNDQLKQVQQNSLHRDslvtLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFN 604
Cdd:COG4913    739 AEDLARLELRALLEERF---AAALGDAVERELRENLEER----IDALRARLNRAEEELERAMRAFNREWPAETADLDADL 811
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  605 NQLKELREIHNkqQLQKQKSMEAE----RLKQKEQERKIIELEKQKEEAQRRAQER 656
Cdd:COG4913    812 ESLPEYLALLD--RLEEDGLPEYEerfkELLNENSIEFVADLLSKLRRAIREIKER 865
SH3_Tec cd11905
Src Homology 3 domain of Tec (Tyrosine kinase expressed in hepatocellular carcinoma); Tec is a ...
1160-1209 3.50e-06

Src Homology 3 domain of Tec (Tyrosine kinase expressed in hepatocellular carcinoma); Tec is a cytoplasmic (or nonreceptor) tyr kinase containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. It also contains an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation, and the Tec homology (TH) domain, which contains proline-rich and zinc-binding regions. It is more widely-expressed than other Tec subfamily kinases. Tec is found in endothelial cells, both B- and T-cells, and a variety of myeloid cells including mast cells, erythroid cells, platelets, macrophages and neutrophils. Tec is a key component of T-cell receptor (TCR) signaling, and is important in TCR-stimulated proliferation, IL-2 production and phospholipase C-gamma1 activation. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212838 [Multi-domain]  Cd Length: 56  Bit Score: 45.58  E-value: 3.50e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKG-EVNGQVGLFPSNYV 1209
Cdd:cd11905      3 VVAMYDFQPTEPHDLRLETGEEYVILEKNDVHWWKArDKYGKEGYIPSNYV 53
SH3_GRAF2 cd12065
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 2; GRAF2, also ...
1163-1211 3.66e-06

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 2; GRAF2, also called Rho GTPase activating protein 10 (ARHGAP10) or PS-GAP, is a GAP with activity towards Cdc42 and RhoA. It regulates caspase-activated p21-activated protein kinase-2 (PAK-2p34). GRAF2 interacts with PAK-2p34, leading to its stabilization and decrease of cell death. It is highly expressed in skeletal muscle, and is involved in alpha-catenin recruitment at cell-cell junctions. GRAF2 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212998 [Multi-domain]  Cd Length: 54  Bit Score: 45.75  E-value: 3.66e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1163 MYDYTAQNDDELAFNKGQII-NVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd12065      5 VYPCEAEHSSELSFEVGAIFeDVTLSREPGWLEGTLNGKRGLIPENYVEI 54
SH3_Sorbs_3 cd11780
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) ...
745-803 3.82e-06

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the third SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212714 [Multi-domain]  Cd Length: 55  Bit Score: 45.76  E-value: 3.82e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVKgEWVDEsqtgepGWLGG--ELKGKTGWFPANYAEK 803
Cdd:cd11780      2 YRALYSYTPQNEDELELREGDIVYVM-EKCDD------GWFVGtsERTGLFGTFPGNYVAR 55
SH3_p40phox cd11869
Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil ...
1163-1211 3.85e-06

Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil cytosol factor 4 (NCF-4), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p40phox positively regulates NADPH oxidase in both phosphatidylinositol-3-phosphate (PI3P)-dependent and PI3P-independent manner. It contains an N-terminal PX domain, a central SH3 domain, and a C-terminal PB1 domain that interacts with p67phox. The SH3 domain of p40phox binds to canonical polyproline and noncanonical motifs at the C-terminus of p47phox. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212802  Cd Length: 54  Bit Score: 45.56  E-value: 3.85e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11869      5 LFDFTGNSKLELNFKAGDVIFLLSRVNKDWLEGTVRGATGIFPLSFVKI 53
SH3_ASEF2 cd11974
Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor 2; ASEF2, also ...
1009-1057 3.95e-06

Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor 2; ASEF2, also called Spermatogenesis-associated protein 13 (SPATA13), is a GEF that localizes with actin at the leading edge of cells and is important in cell migration and adhesion dynamics. GEFs activate small GTPases by exchanging bound GDP for free GTP. ASEF2 can activate both Rac 1 and Cdc42, but only Rac1 activation is necessary for increased cell migration and adhesion turnover. Together with APC (adenomatous polyposis coli) and Neurabin2, a scaffold protein that binds F-actin, it is involved in regulating HGF-induced cell migration. ASEF2 contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212907  Cd Length: 54  Bit Score: 45.44  E-value: 3.95e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTK-KDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11974      5 ALWDHVTMDDQELAFKAGDVIRVLEaSNKDWWWGRNEDREAWFPASFVRL 54
SH3_Stac2_C cd11985
C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); ...
745-803 4.01e-06

C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 2 (Stac2); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac2 contains a single SH3 domain at the C-terminus unlike Stac1 and Stac3, which contain two C-terminal SH3 domains. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212918  Cd Length: 53  Bit Score: 45.71  E-value: 4.01e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVkgewVDESQTgepGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11985      2 YVALYKFLPQENNDLPLQPGDRVMV----VDDSNE---DWWKGKSGDRVGFFPANFVQR 53
SH3_Shank cd11832
Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank ...
1159-1206 4.04e-06

Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. They bind a variety of membrane and cytosolic proteins, and exist in alternatively spliced isoforms. They are highly enriched in postsynaptic density (PSD) where they interact with the cytoskeleton and with postsynaptic membrane receptors including NMDA and glutamate receptors. They are crucial in the construction and organization of the PSD and dendritic spines of excitatory synapses. There are three members of this family (Shank1, Shank2, Shank3) which show distinct and cell-type specific patterns of expression. Shank1 is brain-specific; Shank2 is found in neurons, glia, endocrine cells, liver, and kidney; Shank3 is widely expressed. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212766  Cd Length: 50  Bit Score: 45.50  E-value: 4.04e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPS 1206
Cdd:cd11832      1 YFIAVKSYSPQEEGEISLHKGDRVKVLSIGEGGFWEGSVRGRTGWFPS 48
SH3_OSTF1 cd11772
Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or ...
920-966 4.05e-06

Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or SH3P2, is a signaling protein containing SH3 and ankyrin-repeat domains. It acts through a Src-related pathway to enhance the formation of osteoclasts and bone resorption. It also acts as a negative regulator of cell motility. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212706 [Multi-domain]  Cd Length: 53  Bit Score: 45.37  E-value: 4.05e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYV 966
Cdd:cd11772      4 ALYDYEAQHPDELSFEEGDLLYISDKSDPnWWKATCGGKTGLIPSNYV 51
SH3_RIM-BP cd11851
Src homology 3 domains of Rab3-interacting molecules (RIMs) binding proteins; RIMs binding ...
1160-1210 4.16e-06

Src homology 3 domains of Rab3-interacting molecules (RIMs) binding proteins; RIMs binding proteins (RBPs, RIM-BPs) associate with calcium channels present in photoreceptors, neurons, and hair cells; they interact simultaneously with specific calcium channel subunits, and active zone proteins, RIM1 and RIM2. RIMs are part of the matrix at the presynaptic active zone and are associated with synaptic vesicles through their interaction with the small GTPase Rab3. RIM-BPs play a role in regulating synaptic transmission by serving as adaptors and linking calcium channels with the synaptic vesicle release machinery. RIM-BPs contain three SH3 domains and two to three fibronectin III repeats. Invertebrates contain one, while vertebrates contain at least two RIM-BPs, RIM-BP1 and RIM-BP2. RIM-BP1 is also called peripheral-type benzodiazapine receptor associated protein 1 (PRAX-1). Mammals contain a third protein, RIM-BP3. RIM-BP1 and RIM-BP2 are predominantly expressed in the brain where they display overlapping but distinct expression patterns, while RIM-BP3 is almost exclusively expressed in the testis and is essential in spermiogenesis. The SH3 domains of RIM-BPs bind to the PxxP motifs of RIM1, RIM2, and L-type (alpha1D) and N-type (alpha1B) calcium channel subunits. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212785  Cd Length: 62  Bit Score: 45.77  E-value: 4.16e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1160 VIGMYDY----TAQNDD---ELAFNKGQIINVLNKEDPD-WWKGEVNG-QVGLFPSNYVK 1210
Cdd:cd11851      2 MVALYDYnpetMSPNDDpeeELSFHAGDVVRVYGPMDEDgFYYGELEGgRKGLVPSNFVQ 61
C2B_SLP_1-2-3-4 cd04020
C2 domain second repeat present in Synaptotagmin-like proteins 1-4; All Slp members basically ...
1596-1676 4.22e-06

C2 domain second repeat present in Synaptotagmin-like proteins 1-4; All Slp members basically share an N-terminal Slp homology domain (SHD) and C-terminal tandem C2 domains (named the C2A domain and the C2B domain) with the SHD and C2 domains being separated by a linker sequence of various length. Slp1/JFC1 and Slp2/exophilin 4 promote granule docking to the plasma membrane. Additionally, their C2A domains are both Ca2+ independent, unlike the case in Slp3 and Slp4/granuphilin in which their C2A domains are Ca2+ dependent. It is thought that SHD (except for the Slp4-SHD) functions as a specific Rab27A/B-binding domain. In addition to Slps, rabphilin, Noc2, and Munc13-4 also function as Rab27-binding proteins. It has been demonstrated that Slp3 and Slp4/granuphilin promote dense-core vesicle exocytosis. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 175987 [Multi-domain]  Cd Length: 162  Bit Score: 48.47  E-value: 4.22e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTM-----GSQCHITKTIQDTLNPKWN---SNCQFFIRDLEQEVLCITVFERD 1667
Cdd:cd04020     27 GELHVWVKEAKNLPALKSGGTSDSFVKCYLlpdksKKSKQKTPVVKKSVNPVWNhtfVYDGVSPEDLSQACLELTVWDHD 106

                   ....*....
gi 1034627469 1668 QFSPDDFLG 1676
Cdd:cd04020    107 KLSSNDFLG 115
SH3_VAV_2 cd11830
C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as ...
1008-1055 4.27e-06

C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as cytoplasmic guanine nucleotide exchange factors (GEFs) for Rho GTPases and scaffold proteins and they play important roles in cell signaling by coupling cell surface receptors to various effector functions. They play key roles in processes that require cytoskeletal reorganization including immune synapse formation, phagocytosis, cell spreading, and platelet aggregation, among others. Vertebrates have three VAV proteins (VAV1, VAV2, and VAV3). VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212764 [Multi-domain]  Cd Length: 54  Bit Score: 45.31  E-value: 4.27e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGD--WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11830      3 KARYDFCARDMRELSLKEGDVVKIYNKKGQqgWWRGEINGRIGWFPSTYV 52
SH3_Nck2_2 cd11902
Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
922-966 4.43e-06

Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212835 [Multi-domain]  Cd Length: 55  Bit Score: 45.38  E-value: 4.43e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469  922 YPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11902      7 FAYVAEREDELSLVKGSRVTVMEKcSDGWWRGSYNGQIGWFPSNYV 52
SH3_Cyk3p-like cd11889
Src Homology 3 domain of Cytokinesis protein 3 and similar proteins; Cytokinesis protein 3 ...
1163-1209 4.47e-06

Src Homology 3 domain of Cytokinesis protein 3 and similar proteins; Cytokinesis protein 3 (Cyk3 or Cyk3p) is a component of the actomyosin ring independent cytokinesis pathway in yeast. It interacts with Inn1 and facilitates its recruitment to the bud neck, thereby promoting cytokinesis. Cyk3p contains an N-terminal SH3 domain and a C-terminal transglutaminase-like domain. The Cyk3p SH3 domain binds to the C-terminal proline-rich region of Inn1. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212822  Cd Length: 53  Bit Score: 45.18  E-value: 4.47e-06
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEV--NGQVGLFPSNYV 1209
Cdd:cd11889      5 VYSWAGETEGDLGFLEGDLIEVLSIGDGSWWSGKLrrNGAEGIFPSNFV 53
SH3_CD2AP-like_2 cd11874
Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This ...
1079-1135 4.50e-06

Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This subfamily is composed of the second SH3 domain (SH3B) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3B of both proteins have been shown to bind to Cbl. In the case of CD2AP, its SH3B binds to Cbl at a site distinct from the c-Cbl/SH3A binding site. The CIN85 SH3B also binds ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212807 [Multi-domain]  Cd Length: 53  Bit Score: 45.40  E-value: 4.50e-06
                           10        20        30        40        50
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gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELqaRGKkrqIGWFPANYVKL 1135
Cdd:cd11874      2 CKVLFSYTPQNEDELELKVGDTIEVLGEVEEGWWEGKL--NGK---VGVFPSNFVKE 53
SH3_Vinexin_1 cd11921
First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3) ...
746-804 4.51e-06

First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212854  Cd Length: 55  Bit Score: 45.30  E-value: 4.51e-06
                           10        20        30        40        50
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gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwVDESqtgepgWLGGELKGKTGWFPANYAEKI 804
Cdd:cd11921      4 RLKFDFQAQSPKELTLQKGDIVYIHKE-VDKN------WLEGEHHGRVGIFPANYVEVL 55
SH3_SH3RF_2 cd11787
Second Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
1159-1208 4.54e-06

Second Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the second SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212721 [Multi-domain]  Cd Length: 53  Bit Score: 45.40  E-value: 4.54e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1159 QVIGMYDYTAQNDDE---LAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNY 1208
Cdd:cd11787      1 QCKALYDFEMKDEDEkdcLTFKKGDVITVIRRVDENWAEGRLGDKIGIFPISF 53
SH3_ASEF cd11973
Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor; ASEF, also called ...
918-968 4.63e-06

Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor; ASEF, also called ARHGEF4, exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli). GEFs activate small GTPases by exchanging bound GDP for free GTP. ASEF can activate Rac1 or Cdc42. Truncated ASEF, which is found in colorectal cancers, is constitutively active and has been shown to promote angiogenesis and cancer cell migration. ASEF contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212906 [Multi-domain]  Cd Length: 73  Bit Score: 46.16  E-value: 4.63e-06
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                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11973     20 AEALWDHVTMDDQELGFKAGDVIEVMDATNKeWWWGRVLDSEGWFPASFVRL 71
SH3_Nck_2 cd11766
Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin ...
745-803 4.67e-06

Second Src Homology 3 domain of Nck adaptor proteins; Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212700 [Multi-domain]  Cd Length: 53  Bit Score: 45.33  E-value: 4.67e-06
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gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11766      2 AVVKFNYEAQREDELSLRKGDRVLV-------LEKSSDGWWRGECNGQVGWFPSNYVTE 53
SH3_Nebulin_C cd11933
C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 ...
1004-1055 4.83e-06

C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 kD) that is expressed abundantly in skeletal muscle. It binds to actin thin filaments and regulates its assembly and function. Nebulin was thought to be part of a molecular ruler complex that is critical in determining the lengths of actin thin filaments in skeletal muscle since its length, which varies due to alternative splicing, correlates with the length of thin filaments in various muscle types. Recent studies indicate that nebulin regulates thin filament length by stabilizing the filaments and preventing depolymerization. Mutations in nebulin can cause nemaline myopathy, characterized by muscle weakness which can be severe and can lead to neonatal lethality. Nebulin contains an N-terminal LIM domain, many nebulin repeats/super repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212866 [Multi-domain]  Cd Length: 58  Bit Score: 45.38  E-value: 4.83e-06
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gi 1034627469 1004 GEEFIAMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTV--GDKAGVFPSNYV 1055
Cdd:cd11933      1 GKSFRAMYDYRAADDDEVSFKDGDTIVnVQTIDEGWMYGTVqrTGKTGMLPANYV 55
SH3_ASEF cd11973
Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor; ASEF, also called ...
1162-1211 5.00e-06

Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor; ASEF, also called ARHGEF4, exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli). GEFs activate small GTPases by exchanging bound GDP for free GTP. ASEF can activate Rac1 or Cdc42. Truncated ASEF, which is found in colorectal cancers, is constitutively active and has been shown to promote angiogenesis and cancer cell migration. ASEF contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212906 [Multi-domain]  Cd Length: 73  Bit Score: 45.78  E-value: 5.00e-06
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                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11973     22 ALWDHVTMDDQELGFKAGDVIEVMDATNKEWWWGRVLDSEGWFPASFVRL 71
SH3_SH3YL1_like cd11841
Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes ...
1078-1134 5.03e-06

Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes to the plasma membrane and is required for dorsal ruffle formation. It binds phosphoinositides (PIs) with high affinity through its N-terminal SYLF domain (also called DUF500). In addition, SH3YL1 contains a C-terminal SH3 domain which has been reported to bind to N-WASP, dynamin 2, and SHIP2 (a PI 5-phosphatase). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212775  Cd Length: 54  Bit Score: 45.08  E-value: 5.03e-06
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gi 1034627469 1078 IAQVIASYTATGPEQLTLAPGQLILIRKKNPG--GWWEGELqaRGkkrQIGWFPANYVK 1134
Cdd:cd11841      1 EVTALYSFEGQQPCDLSFQAGDRITVLTRTDSqfDWWEGRL--RG---RVGIFPANYVS 54
PH cd00821
Pleckstrin homology (PH) domain; PH domains have diverse functions, but in general are ...
1465-1566 5.07e-06

Pleckstrin homology (PH) domain; PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 275388 [Multi-domain]  Cd Length: 92  Bit Score: 46.38  E-value: 5.07e-06
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                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1465 HSGKLYK-----AKSNKELYGFLFNDFLLLTQitkplgsSGTDKVFSPKsnlqykmykTPIFLNEVLVKLPTDPSGDEPI 1539
Cdd:cd00821      1 KEGYLLKrggggLKSWKKRWFVLFEGVLLYYK-------SKKDSSYKPK---------GSIPLSGILEVEEVSPKERPHC 64
                           90       100
                   ....*....|....*....|....*...
gi 1034627469 1540 FHISH-IDRVYTLRAESINERTAWVQKI 1566
Cdd:cd00821     65 FELVTpDGRTYYLQADSEEERQEWLKAL 92
SH3_Bbc1 cd11887
Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces ...
920-966 5.20e-06

Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces cerevisiae Bbc1p, also called Mti1p (Myosin tail region-interacting protein), and similar proteins. Bbc1p interacts with and regulates type I myosins in yeast, Myo3p and Myo5p, which are involved in actin cytoskeletal reorganization. It also binds and inhibits Las17, a WASp family protein that functions as an activator of the Arp2/3 complex. Bbc1p contains an N-terminal SH3 domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212820 [Multi-domain]  Cd Length: 60  Bit Score: 45.41  E-value: 5.20e-06
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gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQG-----QKGWFPKSYV 966
Cdd:cd11887      6 ALYPYESDHEDDLNFDVGQLITVTEEEDAdWYFGEYVDsngntKEGIFPKNFV 58
SH3_Sorbs2_3 cd11917
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), ...
1163-1210 5.33e-06

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212850 [Multi-domain]  Cd Length: 61  Bit Score: 45.37  E-value: 5.33e-06
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gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQ--VGLFPSNYVK 1210
Cdd:cd11917     10 LYNYMPRNEDELELREGDVIDVMEKCDDGWFVGTSRRTkfFGTFPGNYVK 59
SH3_AHI-1 cd11812
Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called ...
747-800 5.80e-06

Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called Jouberin, is expressed in high levels in the brain, gonad tissues, and skeletal muscle. It is an adaptor protein that interacts with the small GTPase Rab8a and regulates it distribution and function, affecting cilium formation and vesicle transport. Mutations in the AHI-1 gene can cause Joubert syndrome, a disorder characterized by brainstem malformations, cerebellar aplasia/hypoplasia, and retinal dystrophy. AHI-1 variation is also associated with susceptibility to schizophrenia and type 2 diabetes mellitus progression. AHI-1 contains WD40 and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212746 [Multi-domain]  Cd Length: 52  Bit Score: 45.19  E-value: 5.80e-06
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gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKgewvdeSQTGEPGWLGGELKGKTGWFPANY 800
Cdd:cd11812      4 ALYDYTANRSDELTIHRGDIIRVL------YKDNDNWWFGSLVNGQQGYFPANY 51
SH3_Sorbs2_1 cd11920
First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
916-969 5.81e-06

First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212853 [Multi-domain]  Cd Length: 55  Bit Score: 45.00  E-value: 5.81e-06
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gi 1034627469  916 LQAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSYVKLI 969
Cdd:cd11920      1 LPARAVYDFKAQTSKELSFKKGDTVYILRKIDQNWYeGEHHGRVGIFPISYVEKL 55
SH3_PLCgamma2 cd11969
Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in ...
1085-1134 5.87e-06

Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in haematopoietic cells, specifically in B cells. It is activated by tyrosine phosphorylation by B cell receptor (BCR) kinases and is recruited to the plasma membrane where its substrate is located. It is required in pre-BCR signaling and in the maturation of B cells. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212902  Cd Length: 55  Bit Score: 45.21  E-value: 5.87e-06
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gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPGGWWEGELqarGKKRQIgWFPANYVK 1134
Cdd:cd11969      8 YRAKRSDELSFCKGALIHNVSKETGGWWKGDY---GGKVQH-YFPSNYVE 53
SH3_CIN85_3 cd12057
Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1080-1136 5.90e-06

Third Src Homology 3 domain (SH3C) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CIN85. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212990 [Multi-domain]  Cd Length: 56  Bit Score: 45.27  E-value: 5.90e-06
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gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKN--PGGWWEGELQARGkkrqiGWFPANYVKLL 1136
Cdd:cd12057      3 KVLFPYEAQNEDELTIKEGDIVTLISKDciDAGWWEGELNGRR-----GVFPDNFVKLL 56
C2C_Tricalbin-like cd04045
C2 domain third repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are ...
1615-1701 6.06e-06

C2 domain third repeat present in Tricalbin-like proteins; 5 to 6 copies of the C2 domain are present in Tricalbin, a yeast homolog of Synaptotagmin, which is involved in membrane trafficking and sorting. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the third C2 repeat, C2C, and has a type-II topology.


Pssm-ID: 176010 [Multi-domain]  Cd Length: 120  Bit Score: 47.20  E-value: 6.06e-06
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gi 1034627469 1615 GKSNPYCEVTM-GSQCHITKTIQDTLNPKWNsNCQFFIRDLEQEVLCITVFERDQFSPDDFLGRTEIRVAD-IKKDQ--- 1689
Cdd:cd04045     20 GKIDPYVRVLVnGIVKGRTVTISNTLNPVWD-EVLYVPVTSPNQKITLEVMDYEKVGKDRSLGSVEINVSDlIKKNEdgk 98
                           90
                   ....*....|....*.
gi 1034627469 1690 ----GSKGPVTKCLLL 1701
Cdd:cd04045     99 yveyDDEEERLKRLLS 114
SH3_DNMBP_C2_like cd11800
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
744-803 6.20e-06

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. Also included in this subfamily is the second C-terminal SH3 domain of Rho guanine nucleotide exchange factor 37 (ARHGEF37), whose function is still unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212734 [Multi-domain]  Cd Length: 57  Bit Score: 45.06  E-value: 6.20e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKgEWVDesQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11800      1 YYYALYTFEARSPGELSVTEGQVVTVL-EKHD--LKGNPEWWLVEDRGKQGYVPSNYLAK 57
SH3_VAV2_2 cd11977
C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and ...
747-803 6.27e-06

C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and functions as a guanine nucleotide exchange factor (GEF) for RhoA, RhoB and RhoG and also activates Rac1 and Cdc42. It is implicated in many cellular and physiological functions including blood pressure control, eye development, neurite outgrowth and branching, EGFR endocytosis and degradation, and cell cluster morphology, among others. It has been reported to associate with Nek3. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212910 [Multi-domain]  Cd Length: 58  Bit Score: 45.00  E-value: 6.27e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKGEWvdesqTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11977      5 ARYNFAARDMRELSLREGDVVRIYSRI-----GGDQGWWKGETNGRIGWFPSTYVEE 56
SH3_Intersectin_1 cd11836
First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor ...
1080-1133 6.31e-06

First Src homology 3 domain (or SH3A) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212770 [Multi-domain]  Cd Length: 55  Bit Score: 45.04  E-value: 6.31e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKN--PGGWWEGELqaRGKkrqIGWFPANYV 1133
Cdd:cd11836      3 RALYAFEARNPDEISFQPGDIIQVDESQvaEPGWLAGEL--KGK---TGWFPANYV 53
SH3_p67phox_C cd12046
C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, ...
917-967 6.38e-06

C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, also called Neutrophil cytosol factor 2 (NCF-2), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox plays a regulatory role and contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. It binds, via its C-terminal SH3 domain, to a proline-rich region of p47phox and upon activation, this complex assembles with flavocytochrome b558, the Nox2-p22phox heterodimer. Concurrently, RacGTP translocates to the membrane and interacts with the TPR domain of p67phox, which leads to the activation of NADPH oxidase. The PB1 domain of p67phox binds to its partner PB1 domain in p40phox, and this facilitates the assembly of p47phox-p67phox at the membrane. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212979 [Multi-domain]  Cd Length: 53  Bit Score: 44.79  E-value: 6.38e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd12046      1 QVVALFSYEASQPEDLEFQKGDVILVLSKvNEDWLEGQCKGKIGIFPSAFVE 52
SH3_alphaPIX cd12060
Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho ...
916-967 6.50e-06

Src Homology 3 domain of alpha-Pak Interactive eXchange factor; Alpha-PIX, also called Rho guanine nucleotide exchange factor 6 (ARHGEF6) or Cool (Cloned out of Library)-2, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac 1, and is localized in dendritic spines where it regulates spine morphogenesis. It controls dendritic length and spine density in the hippocampus. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. PIX proteins contain an N-terminal SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains, and a C-terminal leucine-zipper domain for dimerization. The SH3 domain of PIX binds to an atypical PxxxPR motif in p21-activated kinases (PAKs) with high affinity. The binding of PAKs to PIX facilitate the localization of PAKs to focal complexes and also localizes PAKs to PIX targets Cdc43 and Rac, leading to the activation of PAKs. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212993  Cd Length: 58  Bit Score: 44.99  E-value: 6.50e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  916 LQAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVK 967
Cdd:cd12060      2 LVVKARFNFKQTNEDELSVCKGDIIYVTRVEEGgWWEGTLNGKTGWFPSNYVR 54
SH3_Intersectin_4 cd11839
Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor ...
1008-1057 6.52e-06

Fourth Src homology 3 domain (or SH3D) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212773 [Multi-domain]  Cd Length: 58  Bit Score: 45.02  E-value: 6.52e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1008 IAMYTYESSEQgdLTFQQGDVILVTKKDGD-WWTGTV---GDK--AGVFPSNYVRL 1057
Cdd:cd11839      5 IAPFTATAENQ--LSLAVGQLVLVRKKSPSgWWEGELqarGKKrqIGWFPANYVKL 58
C2_Munc13_fungal cd04043
C2 domain in Munc13 (mammalian uncoordinated) proteins; fungal group; C2-like domains are ...
1600-1681 6.72e-06

C2 domain in Munc13 (mammalian uncoordinated) proteins; fungal group; C2-like domains are thought to be involved in phospholipid binding in a Ca2+ independent manner in both Unc13 and Munc13. Caenorabditis elegans Unc13 has a central domain with sequence similarity to PKC, which includes C1 and C2-related domains. Unc13 binds phorbol esters and DAG with high affinity in a phospholipid manner. Mutations in Unc13 results in abnormal neuronal connections and impairment in cholinergic neurotransmission in the nematode. Munc13 is the mammalian homolog which are expressed in the brain. There are 3 isoforms (Munc13-1, -2, -3) and are thought to play a role in neurotransmitter release and are hypothesized to be high-affinity receptors for phorbol esters. Unc13 and Munc13 contain both C1 and C2 domains. There are two C2 related domains present, one central and one at the carboxyl end. Munc13-1 contains a third C2-like domain. Munc13 interacts with syntaxin, synaptobrevin, and synaptotagmin suggesting a role for these as scaffolding proteins. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176008 [Multi-domain]  Cd Length: 126  Bit Score: 47.26  E-value: 6.72e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1600 VNVVEGIELKPCRSHGKSNPYceVTM-----GSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPDDF 1674
Cdd:cd04043      5 IRIVRAENLKADSSNGLSDPY--VTLvdtngKRRIAKTRTIYDTLNPRWDEEFELEVPAGEPLWISATVWDRSFVGKHDL 82

                   ....*..
gi 1034627469 1675 LGRTEIR 1681
Cdd:cd04043     83 CGRASLK 89
PTZ00121 PTZ00121
MAEBL; Provisional
307-668 6.87e-06

MAEBL; Provisional


Pssm-ID: 173412 [Multi-domain]  Cd Length: 2084  Bit Score: 51.30  E-value: 6.87e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  307 SFRRVRSGSGISVISSTSVDQRLPEEPVLEDEQQQLEKKLPVTFEDKKRENFERGNLELEKRRQAllEQQRKEQerlaQL 386
Cdd:PTZ00121  1579 ALRKAEEAKKAEEARIEEVMKLYEEEKKMKAEEAKKAEEAKIKAEELKKAEEEKKKVEQLKKKEA--EEKKKAE----EL 1652
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  387 ERAEQERKERerQEQERKRQlELEKQLEKQRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLnQRNKEQE 466
Cdd:PTZ00121  1653 KKAEEENKIK--AAEEAKKA-EEDKKKAEEAKKAEEDEKKAAEALKKEAEEAKKAEELKKKEAEEKKKAEEL-KKAEEEN 1728
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  467 DIVVLKAKKKTLEFELEALNDKKHqlEGKLQDIRCRLTTQRQEIESTNKSRELRIAEithlqqqLQESQQMLGRLIPEKQ 546
Cdd:PTZ00121  1729 KIKAEEAKKEAEEDKKKAEEAKKD--EEEKKKIAHLKKEEEKKAEEIRKEKEAVIEE-------ELDEEDEKRRMEVDKK 1799
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  547 I--LNDQLKQVQQNSLHRDSLVTLKRAL---EAKELA--RQHLRDQLDEVEKETRSK--------------LQEIDIFNN 605
Cdd:PTZ00121  1800 IkdIFDNFANIIEGGKEGNLVINDSKEMedsAIKEVAdsKNMQLEEADAFEKHKFNKnnengedgnkeadfNKEKDLKED 1879
                          330       340       350       360       370       380
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  606 QLKELREIHNKQQLQKQkSMEAERLKQ--KEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQED 668
Cdd:PTZ00121  1880 DEEEIEEADEIEKIDKD-DIEREIPNNnmAGKNNDIIDDKLDKDEYIKRDAEETREEIIKISKKD 1943
SH3_Eve1_3 cd11816
Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
746-800 7.24e-06

Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212750 [Multi-domain]  Cd Length: 51  Bit Score: 44.71  E-value: 7.24e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKgEWVDESqtgepgWLGGELKGKTGWFPANY 800
Cdd:cd11816      3 VARFDFEGEQEDELSFSEGDVITLK-EYVGEE------WAKGELNGKIGIFPLNF 50
SH3_FCHSD_2 cd11762
Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
918-962 7.64e-06

Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212696 [Multi-domain]  Cd Length: 57  Bit Score: 44.70  E-value: 7.64e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQ-----DMWWFGEVQGQKGWFP 962
Cdd:cd11762      2 VRALYDYEAQSDEELSFPEGAIIRILRKDdngvdDGWWEGEFNGRVGVFP 51
SH3_Eve1_4 cd11817
Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
918-965 7.71e-06

Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212751 [Multi-domain]  Cd Length: 50  Bit Score: 44.78  E-value: 7.71e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSY 965
Cdd:cd11817      2 AVALYDFTGETEEDLSFQRGDRILVTEHLDAeWSRGRLNGREGIFPRAF 50
SH3_Shank1 cd11982
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also ...
1166-1209 7.73e-06

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also called SSTRIP (Somatostatin receptor-interacting protein), is a brain-specific protein that plays a role in the construction of postsynaptic density (PSD) and the maturation of dendritic spines. Mice deficient in Shank1 show altered PSD composition, thinner PSDs, smaller dendritic spines, and weaker basal synaptic transmission, although synaptic plasticity is normal. They show increased anxiety and impaired fear memory, but also show better spatial learning. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212915 [Multi-domain]  Cd Length: 52  Bit Score: 44.62  E-value: 7.73e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....
gi 1034627469 1166 YTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11982      9 YQSQAEGEISLSKGEKIKVLSVGEGGFWEGQVKGRVGWFPSDCV 52
SH3_MLK cd11876
Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), ...
1085-1133 7.75e-06

Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Mammals have four MLKs (MLK1-4), mostly conserved in vertebrates, which contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212809 [Multi-domain]  Cd Length: 58  Bit Score: 44.81  E-value: 7.75e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPG-----GWWEGELQARgkkrqIGWFPANYV 1133
Cdd:cd11876      8 YDARGEDELTLRRGQPVEVLSKDAAvsgdeGWWTGKIGDK-----VGIFPSNYV 56
ARGLU pfam15346
Arginine and glutamate-rich 1; ARGLU, arginine and glutamate-rich 1 protein family, is ...
325-482 8.01e-06

Arginine and glutamate-rich 1; ARGLU, arginine and glutamate-rich 1 protein family, is required for the oestrogen-dependent expression of ESR1 target genes. It functions in cooperation with MED1. The family of proteins is found in eukaryotes.


Pssm-ID: 405931 [Multi-domain]  Cd Length: 151  Bit Score: 47.35  E-value: 8.01e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  325 VDQRLPEEpvLEDEQQQLEKKLPVTFEDKKRENFERGNLELEKRRQALL-EQQRKEQERLAQLERAEQERKERERQEQER 403
Cdd:pfam15346   20 VAKRVEEE--LEKRKDEIEAEVERRVEEARKIMEKQVLEELEREREAELeEERRKEEEERKKREELERILEENNRKIEEA 97
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  404 KRQLELEKQlekqrelerqreeerrkeierreaakRELERQRQLEWERNRRQELLNQRNKEQEDIVVLKAK-KKTLEFEL 482
Cdd:pfam15346   98 QRKEAEERL--------------------------AMLEEQRRMKEERQRREKEEEEREKREQQKILNKKNsRPKLSFSL 151
PH_PLEKHG5_G6 cd13244
Pleckstrin homology domain-containing family G member 5 and 6 pleckstrin homology (PH) domain; ...
1461-1567 8.09e-06

Pleckstrin homology domain-containing family G member 5 and 6 pleckstrin homology (PH) domain; PLEKHG5 has a RhoGEF DH/double-homology domain in tandem with a PH domain which is involved in phospholipid binding. PLEKHG5 activates the nuclear factor kappa B (NFKB1) signaling pathway. Mutations in PLEKHG5 are associated with autosomal recessive distal spinal muscular atrophy. PLEKHG6 (also called MyoGEF) has no known function to date. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 270064  Cd Length: 100  Bit Score: 46.07  E-value: 8.09e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1461 RKFLHSG--KLYKAKSNK-ELYGFLFNDFLLltqITKPLGSSGtDKvfspksnlqYKMYKTPIFLNEVLVKLPTDPSGde 1537
Cdd:cd13244      1 RRLLLEGdlRLKEGKGSKvDVHCFLFTDMLL---ICKPVKRKK-DR---------LKVIRPPYLVDKLVVQELKDPGG-- 65
                           90       100       110
                   ....*....|....*....|....*....|....*.
gi 1034627469 1538 piFHISHIDR------VYTLRAESINERTAWVQKIK 1567
Cdd:cd13244     66 --FLLVYLNEfhtavaAYTFQTSSQEDTRRWLDAIR 99
SH3_SH3RF_3 cd11783
Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and ...
1007-1055 8.34e-06

Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212717 [Multi-domain]  Cd Length: 55  Bit Score: 44.69  E-value: 8.34e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKK--DGdWWTGT--VGDKAGVFPSNYV 1055
Cdd:cd11783      2 YVALYPYKPQKPDELELRKGEMYTVTEKcqDG-WFKGTslRTGQSGVFPGNYV 53
SH3_Abp1_fungi_C1 cd11962
First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
918-968 8.48e-06

First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212895 [Multi-domain]  Cd Length: 54  Bit Score: 44.79  E-value: 8.48e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGE-VQGQKGWFPKSYVKL 968
Cdd:cd11962      2 AVVLYDYEKDEDNEIELVEGEIVTNIEMVDEdWWMGTnSKGESGLFPSNYVEL 54
C2_PKC_alpha_gamma cd04026
C2 domain in Protein Kinase C (PKC) alpha and gamma; A single C2 domain is found in PKC alpha ...
1596-1689 8.65e-06

C2 domain in Protein Kinase C (PKC) alpha and gamma; A single C2 domain is found in PKC alpha and gamma. The PKC family of serine/threonine kinases regulates apoptosis, proliferation, migration, motility, chemo-resistance, and differentiation. There are 3 groups: group 1(alpha, betaI, beta II, gamma) which require phospholipids and calcium, group 2 (delta, epsilon, theta, eta) which do not require calcium for activation, and group 3 (xi, iota/lambda) which are atypical and can be activated in the absence of diacylglycerol and calcium. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology.


Pssm-ID: 175992 [Multi-domain]  Cd Length: 131  Bit Score: 46.87  E-value: 8.65e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTM-----GSQCHITKTIQDTLNPKWNSncQFFIrDLEQE----VLCITVFER 1666
Cdd:cd04026     13 NKLTVEVREAKNLIPMDPNGLSDPYVKLKLipdpkNETKQKTKTIKKTLNPVWNE--TFTF-DLKPAdkdrRLSIEVWDW 89
                           90       100
                   ....*....|....*....|...
gi 1034627469 1667 DQFSPDDFLGRTEIRVADIKKDQ 1689
Cdd:cd04026     90 DRTTRNDFMGSLSFGVSELIKMP 112
C2B_MCTP_PRT_plant cd08378
C2 domain second repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); ...
1597-1685 8.72e-06

C2 domain second repeat found in Multiple C2 domain and Transmembrane region Proteins (MCTP); plant subset; MCTPs are involved in Ca2+ signaling at the membrane. Plant-MCTPs are composed of a variable N-terminal sequence, four C2 domains, two transmembrane regions (TMRs), and a short C-terminal sequence. It is one of four protein classes that are anchored to membranes via a transmembrane region; the others being synaptotagmins, extended synaptotagmins, and ferlins. MCTPs are the only membrane-bound C2 domain proteins that contain two functional TMRs. MCTPs are unique in that they bind Ca2+ but not phospholipids. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 176024 [Multi-domain]  Cd Length: 121  Bit Score: 46.54  E-value: 8.72e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1597 RLMVNVVEGIELKPCrshgKSNPYCEVTMGSQCHITKTIQDTLNPKWNsncQFFI--RDLEQE-VLCITVFERDqFSPDD 1673
Cdd:cd08378      1 YLYVRVVKARGLPAN----SNDPVVEVKLGNYKGSTKAIERTSNPEWN---QVFAfsKDRLQGsTLEVSVWDKD-KAKDD 72
                           90
                   ....*....|..
gi 1034627469 1674 FLGRTEIRVADI 1685
Cdd:cd08378     73 FLGGVCFDLSEV 84
SH3_Abp1_fungi_C1 cd11962
First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
1008-1057 8.91e-06

First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212895 [Multi-domain]  Cd Length: 54  Bit Score: 44.40  E-value: 8.91e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGD-KAGVFPSNYVRL 1057
Cdd:cd11962      3 VVLYDYEKDEDNEIELVEGEIVTnIEMVDEDWWMGTNSKgESGLFPSNYVEL 54
SH3_RIM-BP_3 cd12013
Third Src homology 3 domain of Rab3-interacting molecules (RIMs) binding proteins; RIMs ...
1159-1210 9.38e-06

Third Src homology 3 domain of Rab3-interacting molecules (RIMs) binding proteins; RIMs binding proteins (RBPs, RIM-BPs) associate with calcium channels present in photoreceptors, neurons, and hair cells; they interact simultaneously with specific calcium channel subunits, and active zone proteins, RIM1 and RIM2. RIMs are part of the matrix at the presynaptic active zone and are associated with synaptic vesicles through their interaction with the small GTPase Rab3. RIM-BPs play a role in regulating synaptic transmission by serving as adaptors and linking calcium channels with the synaptic vesicle release machinery. RIM-BPs contain three SH3 domains and two to three fibronectin III repeats. Invertebrates contain one, while vertebrates contain at least two RIM-BPs, RIM-BP1 and RIM-BP2. RIM-BP1 is also called peripheral-type benzodiazapine receptor associated protein 1 (PRAX-1). Mammals contain a third protein, RIM-BP3. RIM-BP1 and RIM-BP2 are predominantly expressed in the brain where they display overlapping but distinct expression patterns, while RIM-BP3 is almost exclusively expressed in the testis and is essential in spermiogenesis. The SH3 domains of RIM-BPs bind to the PxxP motifs of RIM1, RIM2, and L-type (alpha1D) and N-type (alpha1B) calcium channel subunits. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212946  Cd Length: 61  Bit Score: 44.68  E-value: 9.38e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1159 QVIGMYDYTAQ----NDD---ELAFNKGQIINVLNKEDPD-WWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12013      1 RMVALFDYDPResspNVDaevELSFRAGDIITVFGEMDEDgFYYGELNGQRGLVPSNFLE 60
SH3_Lyn cd12004
Src homology 3 domain of Lyn Protein Tyrosine Kinase; Lyn is a member of the Src subfamily of ...
1008-1055 9.39e-06

Src homology 3 domain of Lyn Protein Tyrosine Kinase; Lyn is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Lyn is expressed in B lymphocytes and myeloid cells. It exhibits both positive and negative regulatory roles in B cell receptor (BCR) signaling. Lyn, as well as Fyn and Blk, promotes B cell activation by phosphorylating ITAMs (immunoreceptor tyr activation motifs) in CD19 and in Ig components of BCR. It negatively regulates signaling by its unique ability to phosphorylate ITIMs (immunoreceptor tyr inhibition motifs) in cell surface receptors like CD22 and CD5. Lyn also plays an important role in G-CSF receptor signaling by phosphorylating a variety of adaptor molecules. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212937 [Multi-domain]  Cd Length: 56  Bit Score: 44.60  E-value: 9.39e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTGT--VGDKAGVFPSNYV 1055
Cdd:cd12004      3 VALYPYDGIHEDDLSFKKGEKLKVIEEHGEWWKARslTTKKEGFIPSNYV 52
SH3_Tks_2 cd12016
Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
922-967 9.85e-06

Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the second SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212949  Cd Length: 54  Bit Score: 44.37  E-value: 9.85e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469  922 YPWRAKKDNHLNFNKNDVITVLEQQ-DMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd12016      7 QAYKAENEDEIGFETGVVVEVIQKNlDGWWKIRYQGKEGWAPATYLK 53
COG4913 COG4913
Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];
366-512 1.00e-05

Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];


Pssm-ID: 443941 [Multi-domain]  Cd Length: 1089  Bit Score: 50.68  E-value: 1.00e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  366 EKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELE---------KQLEKQrelerqreeerrkeierREA 436
Cdd:COG4913    287 QRRLELLEAELEELRAELARLEAELERLEARLDALREELDELEAQirgnggdrlEQLERE-----------------IER 349
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  437 AKRELERQRQlewERNRRQELLNQ----RNKEQEDIVVLKAK----KKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQ 508
Cdd:COG4913    350 LERELEERER---RRARLEALLAAlglpLPASAEEFAALRAEaaalLEALEEELEALEEALAEAEAALRDLRRELRELEA 426

                   ....
gi 1034627469  509 EIES 512
Cdd:COG4913    427 EIAS 430
C2D_Ferlin cd04017
C2 domain fourth repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and ...
1615-1681 1.16e-05

C2 domain fourth repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and other proteins, such as Synaptotagmins, are implicated in facilitating the fusion process when cell membranes fuse together. There are six known human Ferlins: Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can lead to a wide range of diseases including muscular dystrophy (dysferlin), deafness (otoferlin), and infertility (fer-1, fertilization factor-1). Structurally they have 6 tandem C2 domains, designated as (C2A-C2F) and a single C-terminal transmembrane domain, though there is a new study that disputes this and claims that there are actually 7 tandem C2 domains with another C2 domain inserted between C2D and C2E. In a subset of them (Dysferlin, Myoferlin, and Fer1) there is an additional conserved domain called DysF. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the fourth C2 repeat, C2D, and has a type-II topology.


Pssm-ID: 175984 [Multi-domain]  Cd Length: 135  Bit Score: 46.77  E-value: 1.16e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469 1615 GKSNPYCEVTMGSQCHITKTIQDTLNPKWNsncQFFI----------RDLEQE--VLCITVFERDQFSPDDFLGRTEIR 1681
Cdd:cd04017     20 GLSDPFARVSFLNQSQETEVIKETLSPTWD---QTLIfdevelygspEEIAQNppLVVVELFDQDSVGKDEFLGRSVAK 95
SH3_p47phox_like cd11856
Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This ...
920-967 1.22e-05

Src homology 3 domains of the p47phox subunit of NADPH oxidase and similar domains; This family is composed of the tandem SH3 domains of p47phox subunit of NADPH oxidase and Nox Organizing protein 1 (NoxO1), the four SH3 domains of Tks4 (Tyr kinase substrate with four SH3 domains), the five SH3 domains of Tks5, the SH3 domain of obscurin, Myosin-I, and similar domains. Most members of this group also contain Phox homology (PX) domains, except for obscurin and Myosin-I. p47phox and NoxO1 are regulators of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) and nonphagocytic NADPH oxidase Nox1, respectively. They play roles in the activation of their respective NADPH oxidase, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Obscurin is a giant muscle protein that plays important roles in the organization and assembly of the myofibril and the sarcoplasmic reticulum. Type I myosins (Myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212790 [Multi-domain]  Cd Length: 53  Bit Score: 44.16  E-value: 1.22e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVK 967
Cdd:cd11856      4 AIADYEAQGDDEISLQEGEVVEVLEKNDSgWWYVRKGDKEGWVPASYLE 52
SH3_BAIAP2L1 cd11913
Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 1, ...
932-968 1.26e-05

Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 1, also called Insulin Receptor Tyrosine Kinase Substrate (IRTKS); BAIAP2L1 or IRTKS is widely expressed, serves as a substrate for the insulin receptor, and binds the small GTPase Rac. It plays a role in regulating the actin cytoskeleton and colocalizes with F-actin, cortactin, VASP, and vinculin. BAIAP2L1 expression leads to the formation of short actin bundles, distinct from filopodia-like protrusions induced by the expression of the related protein IRSp53. IRTKS mediates the recruitment of effector proteins Tir and EspFu, which regulate host cell actin reorganization, to bacterial attachment sites. It contains an N-terminal IMD or Inverse-Bin/Amphiphysin/Rvs (I-BAR) domain, an SH3 domain, and a WASP homology 2 (WH2) actin-binding motif at the C-terminus. The SH3 domain of IRTKS has been shown to bind the proline-rich C-terminus of EspFu. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212846  Cd Length: 58  Bit Score: 44.14  E-value: 1.26e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|.
gi 1034627469  932 LNFNKNDVITVL--EQQDMWWFGE--VQGQKGWFPKSYVKL 968
Cdd:cd11913     18 LSFAQGDVITLLipEEKDGWLYGEhdTTKARGWFPSSYTRP 58
SH3_VAV_2 cd11830
C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as ...
1085-1134 1.28e-05

C-terminal (or second) Src homology 3 domain of VAV proteins; VAV proteins function both as cytoplasmic guanine nucleotide exchange factors (GEFs) for Rho GTPases and scaffold proteins and they play important roles in cell signaling by coupling cell surface receptors to various effector functions. They play key roles in processes that require cytoskeletal reorganization including immune synapse formation, phagocytosis, cell spreading, and platelet aggregation, among others. Vertebrates have three VAV proteins (VAV1, VAV2, and VAV3). VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212764 [Multi-domain]  Cd Length: 54  Bit Score: 44.16  E-value: 1.28e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1085 YTATGPEQLTLAPGQLILI-RKKNPGGWWEGELQARgkkrqIGWFPANYVK 1134
Cdd:cd11830      8 FCARDMRELSLKEGDVVKIyNKKGQQGWWRGEINGR-----IGWFPSTYVE 53
SH3_PRMT2 cd11806
Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, ...
1081-1133 1.32e-05

Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, belongs to the arginine methyltransferase protein family. It functions as a coactivator to both estrogen receptor alpha (ER-alpha) and androgen receptor (AR), presumably through arginine methylation. The ER-alpha transcription factor is involved in cell proliferation, differentiation, morphogenesis, and apoptosis, and is also implicated in the development and progression of breast cancer. PRMT2 and its variants are upregulated in breast cancer cells and may be involved in modulating the ER-alpha signaling pathway during formation of breast cancer. PRMT2 also plays a role in regulating the function of E2F transcription factors, which are critical cell cycle regulators, by binding to the retinoblastoma gene product (RB). It contains an N-terminal SH3 domain and an AdoMet binding domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212740 [Multi-domain]  Cd Length: 53  Bit Score: 43.92  E-value: 1.32e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQarGKKrqiGWFPANYV 1133
Cdd:cd11806      4 AIADFVATDDSQLSFESGDKLLVLRKPSVDWWWAEHN--GCC---GYIPASHL 51
SH3_Pex13p_fungal cd11771
Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the ...
1079-1133 1.34e-05

Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the peroxisomal membrane, contains two transmembrane regions and a C-terminal SH3 domain. It binds to the peroxisomal targeting type I (PTS1) receptor Pex5p and the docking factor Pex14p through its SH3 domain. It is essential for both PTS1 and PTS2 protein import pathways into the peroxisomal matrix. Pex13p binds Pex14p, which contains a PxxP motif, in a classical fashion to the proline-rich ligand binding site of its SH3 domain. It binds the WxxxF/Y motif of Pex5p in a novel site that does not compete with Pex14p binding. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212705 [Multi-domain]  Cd Length: 60  Bit Score: 44.19  E-value: 1.34e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1079 AQVIASYTATGPE-QLTLAPGQLILIRKK-----NPGGWWEGelqaRGKKRQIGWFPANYV 1133
Cdd:cd11771      2 CRALYDFTPENPEmELSLKKGDIVAVLSKtdplgRDSEWWKG----RTRDGRIGWFPSNYV 58
SH3_SH3RF1_3 cd11926
Third Src Homology 3 domain of SH3 domain containing ring finger 1, an E3 ubiquitin-protein ...
1161-1209 1.35e-05

Third Src Homology 3 domain of SH3 domain containing ring finger 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212859 [Multi-domain]  Cd Length: 55  Bit Score: 44.19  E-value: 1.35e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEV--NGQVGLFPSNYV 1209
Cdd:cd11926      3 VAIYPYTPRKEDELELRKGEMFLVFERCQDGWFKGTSmhTSKIGVFPGNYV 53
SH3_GRAF3 cd12066
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 3; GRAF3 is ...
1159-1209 1.41e-05

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase 3; GRAF3 is also called Rho GTPase activating protein 42 (ARHGAP42) or ARHGAP10-like. Though its function has not been characterized, it may be a GAP with activity towards RhoA and Cdc42, based on its similarity to GRAF and GRAF2. It contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212999  Cd Length: 55  Bit Score: 43.90  E-value: 1.41e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQII-NVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd12066      1 QAKAMYSCKAEHSHELSFPQGAIFsNVYPSVEPGWLKATYEGKTGLVPENYV 52
SH3_Eve1_3 cd11816
Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1008-1055 1.44e-05

Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212750 [Multi-domain]  Cd Length: 51  Bit Score: 43.94  E-value: 1.44e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11816      3 VARFDFEGEQEDELSFSEGDVITLKEYVGEeWAKGELNGKIGIFPLNFV 51
SH3_Intersectin1_1 cd11987
First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1162-1210 1.45e-05

First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212920 [Multi-domain]  Cd Length: 55  Bit Score: 43.83  E-value: 1.45e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKE--DPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11987      4 ALYPFEARSHDEITIQPGDIVMVDESQtgEPGWLGGELKGKTGWFPANYAE 54
SH3_Abi1 cd11971
Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of ...
1008-1055 1.45e-05

Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of actin cytoskeletal reorganization through interactions with many protein complexes. It is part of WAVE, a nucleation-promoting factor complex, that links Rac 1 activation to actin polymerization causing lamellipodia protrusion at the plasma membrane. Abi1 interact with formins to promote protrusions at the leading edge of motile cells. It also is a target of alpha4 integrin, regulating membrane protrusions at sites of integrin engagement. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212904 [Multi-domain]  Cd Length: 59  Bit Score: 44.24  E-value: 1.45e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11971      3 VAIYDYSKDKDDELSFMEGAIIYVIKKNDDgWYEGVCNGVTGLFPGNYV 51
SH3_Lyn cd12004
Src homology 3 domain of Lyn Protein Tyrosine Kinase; Lyn is a member of the Src subfamily of ...
1160-1209 1.47e-05

Src homology 3 domain of Lyn Protein Tyrosine Kinase; Lyn is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Lyn is expressed in B lymphocytes and myeloid cells. It exhibits both positive and negative regulatory roles in B cell receptor (BCR) signaling. Lyn, as well as Fyn and Blk, promotes B cell activation by phosphorylating ITAMs (immunoreceptor tyr activation motifs) in CD19 and in Ig components of BCR. It negatively regulates signaling by its unique ability to phosphorylate ITIMs (immunoreceptor tyr inhibition motifs) in cell surface receptors like CD22 and CD5. Lyn also plays an important role in G-CSF receptor signaling by phosphorylating a variety of adaptor molecules. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212937 [Multi-domain]  Cd Length: 56  Bit Score: 44.21  E-value: 1.47e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLnKEDPDWWKGE--VNGQVGLFPSNYV 1209
Cdd:cd12004      2 VVALYPYDGIHEDDLSFKKGEKLKVI-EEHGEWWKARslTTKKEGFIPSNYV 52
SH3_CD2AP-like_1 cd11873
First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This ...
920-967 1.51e-05

First Src Homology 3 domain (SH3A) of CD2-associated protein and similar proteins; This subfamily is composed of the first SH3 domain (SH3A) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3A of both proteins bind to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic domain of the cell adhesion protein CD2. CIN85 SH3A binds to internal proline-rich motifs within the proline-rich region; this intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. CIN85 SH3A has also been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212806 [Multi-domain]  Cd Length: 53  Bit Score: 43.79  E-value: 1.51e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVIT-VLEQQDMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd11873      4 VEFDYDAEEPDELTLKVGDIITnVKKMEEGWWEGTLNGKRGMFPDNFVK 52
SH3_Nck1_2 cd11901
Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
916-966 1.54e-05

Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212834 [Multi-domain]  Cd Length: 55  Bit Score: 43.87  E-value: 1.54e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  916 LQAQALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11901      2 LPAYVKFNYTAEREDELSLVKGTKVIVMEKcSDGWWRGSYNGQVGWFPSNYV 53
SH3_SNX33 cd11896
Src Homology 3 domain of Sorting Nexin 33; SNX33 interacts with Wiskott-Aldrich syndrome ...
746-802 1.54e-05

Src Homology 3 domain of Sorting Nexin 33; SNX33 interacts with Wiskott-Aldrich syndrome protein (WASP) and plays a role in the maintenance of cell shape and cell cycle progression. It modulates the shedding and endocytosis of cellular prion protein (PrP(c)) and amyloid precursor protein (APP). SNXs are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNX33 also contains BAR and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212829 [Multi-domain]  Cd Length: 55  Bit Score: 43.80  E-value: 1.54e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  746 RALYPFESRSHDEITIQPGDivmvkgEWVDESQTGEPGWLGGE-LKGKTGWFPANYAE 802
Cdd:cd11896      3 RALYSFQSENKEEINIQENE------ELVIFSENSLDGWLQGQnSRGETGLFPASYVE 54
SH3_PLCgamma1 cd11970
Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is ...
1009-1055 1.55e-05

Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is essential in growth and development. It is activated by the TrkA receptor tyrosine kinase and functions as a key regulator of cell differentiation. It is also the predominant PLCgamma in T cells and is required for T cell and NK cell function. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212903  Cd Length: 60  Bit Score: 44.21  E-value: 1.55e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGDKAGV-FPSNYV 1055
Cdd:cd11970      8 ALFDYKAQREDELTFTKNAIIQnVEKQEGGWWRGDYGGKKQLwFPSNYV 56
SH3_Endophilin_B cd11802
Src homology 3 domain of Endophilin-B; Endophilins play roles in synaptic vesicle formation, ...
917-965 1.56e-05

Src homology 3 domain of Endophilin-B; Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They are classified into two types, A and B. Vertebrates contain two endophilin-B isoforms. Endophilin-B proteins are cytoplasmic proteins expressed mainly in the heart, placenta, and skeletal muscle. Endophilins contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212736 [Multi-domain]  Cd Length: 52  Bit Score: 43.82  E-value: 1.56e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM---WWFGEVQGQKGWFPKSY 965
Cdd:cd11802      1 KARVLYDYDAEDSTELSLLADEVITVYELPGMdedYMMGERGSQRGKVPVAY 52
SH3_Noxa1_C cd12047
C-terminal Src Homology 3 domain of NADPH oxidase activator 1; Noxa1 is a homolog of p67phox ...
1008-1055 1.57e-05

C-terminal Src Homology 3 domain of NADPH oxidase activator 1; Noxa1 is a homolog of p67phox and is a cytosolic subunit of the nonphagocytic NADPH oxidase complex Nox1, which catalyzes the transfer of electrons from NADPH to molecular oxygen to form superoxide. Noxa1 is co-expressed with Nox1 in colon, stomach, uterus, prostate, and vascular smooth muscle cells, consistent with its regulatory role. It does not interact with p40phox, unlike p67phox, making Nox1 activity independent of p40phox, unlike Nox2. Noxa1 contains TPR, PB1, and C-terminal SH3 domains, but lacks the central SH3 domain that is present in p67phox. The TPR domain binds activated GTP-bound Rac. The C-terminal SH3 domain binds the polyproline motif found at the C-terminus of Noxo1, a homolog of p47phox. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212980  Cd Length: 53  Bit Score: 43.65  E-value: 1.57e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd12047      3 VAQHDYSAQGPEDLEFSQGDTIdILSEVNQEWLEGHCDGRIGIFPKCFA 51
PRK02224 PRK02224
DNA double-strand break repair Rad50 ATPase;
326-686 1.62e-05

DNA double-strand break repair Rad50 ATPase;


Pssm-ID: 179385 [Multi-domain]  Cd Length: 880  Bit Score: 50.04  E-value: 1.62e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  326 DQRLPEEPVLEDEQQQLEkklpvtfeDKKRENFERGNLELEKRRQALlEQQRKEQErlAQLERAEQERkereRQEQERKR 405
Cdd:PRK02224   173 DARLGVERVLSDQRGSLD--------QLKAQIEEKEEKDLHERLNGL-ESELAELD--EEIERYEEQR----EQARETRD 237
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  406 QLE--LEKQLEKQrelerQREEERRKEIERREAAKRELERQR-----QLEWERNRRQELLNQRNKEQEDIVVLKAKKKTL 478
Cdd:PRK02224   238 EADevLEEHEERR-----EELETLEAEIEDLRETIAETEREReelaeEVRDLRERLEELEEERDDLLAEAGLDDADAEAV 312
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  479 EFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKS---RELRIAEITHLQQQLQESQQMLGRLIPEKQ----ILNDQ 551
Cdd:PRK02224   313 EARREELEDRDEELRDRLEECRVAAQAHNEEAESLREDaddLEERAEELREEAAELESELEEAREAVEDRReeieELEEE 392
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  552 LKQVQQNslHRDSLVTLKRALEAKELARQHlRDQLDEVEKETRSKLQEIDIFNNQLKELREIHN----KQQL-------- 619
Cdd:PRK02224   393 IEELRER--FGDAPVDLGNAEDFLEELREE-RDELREREAELEATLRTARERVEEAEALLEAGKcpecGQPVegsphvet 469
                          330       340       350       360       370       380       390
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  620 -----QKQKSMEAERLKQKEQ----ERKIIELEKQKEEAQRRaqERDKQWLEHVQQEDEHQRPRKlhEEEKLKREE 686
Cdd:PRK02224   470 ieedrERVEELEAELEDLEEEveevEERLERAEDLVEAEDRI--ERLEERREDLEELIAERRETI--EEKRERAEE 541
SCP-1 pfam05483
Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major ...
335-714 1.63e-05

Synaptonemal complex protein 1 (SCP-1); Synaptonemal complex protein 1 (SCP-1) is the major component of the transverse filaments of the synaptonemal complex. Synaptonemal complexes are structures that are formed between homologous chromosomes during meiotic prophase.


Pssm-ID: 114219 [Multi-domain]  Cd Length: 787  Bit Score: 49.72  E-value: 1.63e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEK-KLPVTFEDKKRENFERGNLEL-EKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERK-------- 404
Cdd:pfam05483   83 LYKEAEKIKKwKVSIEAELKQKENKLQENRKIiEAQRKAIQELQFENEKVSLKLEEEIQENKDLIKENNATRhlcnllke 162
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  405 ---RQLELEKQLEKQRELERQREEERRKEIERREAAKRELERQRQ---------LEWERNRRQELLNQRNKE---QEDIV 469
Cdd:pfam05483  163 tcaRSAEKTKKYEYEREETRQVYMDLNNNIEKMILAFEELRVQAEnarlemhfkLKEDHEKIQHLEEEYKKEindKEKQV 242
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  470 VL--------KAKKKTLEFELEALNDKKHQLE--GKLQDIRCRLTTQRQ-----EIESTNKSRELRIAEITHLQQQLQES 534
Cdd:pfam05483  243 SLlliqitekENKMKDLTFLLEESRDKANQLEekTKLQDENLKELIEKKdhltkELEDIKMSLQRSMSTQKALEEDLQIA 322
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  535 QQMLGRLIPEKQILNDQLKQVQQN-----SLHRDSLVTLKRALEAKELARQHLRDQLD----EVEKETrSKLQEIDIFNN 605
Cdd:pfam05483  323 TKTICQLTEEKEAQMEELNKAKAAhsfvvTEFEATTCSLEELLRTEQQRLEKNEDQLKiitmELQKKS-SELEEMTKFKN 401
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  606 ----QLKELREIHNKQQ--LQKQKSME--AERLKQKEQERKIIELEKQKE----EAQRRAQERDKQwleHVQQEDEHQRP 673
Cdd:pfam05483  402 nkevELEELKKILAEDEklLDEKKQFEkiAEELKGKEQELIFLLQAREKEihdlEIQLTAIKTSEE---HYLKEVEDLKT 478
                          410       420       430       440
                   ....*....|....*....|....*....|....*....|....*
gi 1034627469  674 RKlhEEEKLKREE----SVKKKDGEEKGKQEAQDKLGRLfHQHQE 714
Cdd:pfam05483  479 EL--EKEKLKNIEltahCDKLLLENKELTQEASDMTLEL-KKHQE 520
SH3_ARHGEF9 cd11975
Src homology 3 domain of the Rho guanine nucleotide exchange factor ARHGEF9; ARHGEF9, also ...
916-968 1.66e-05

Src homology 3 domain of the Rho guanine nucleotide exchange factor ARHGEF9; ARHGEF9, also called PEM2 or collybistin, selectively activates Cdc42 by exchanging bound GDP for free GTP. It is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. Mutations in the ARHGEF9 gene cause X-linked mental retardation with associated features like seizures, hyper-anxiety, aggressive behavior, and sensory hyperarousal. ARHGEF9 contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212908  Cd Length: 62  Bit Score: 43.93  E-value: 1.66e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  916 LQAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11975      5 VSAEAVWDHVTMANRELAFKAGDVIKVLDASNKdWWWGQIDDEEGWFPASFVRL 58
SH3_GRB2_N cd11946
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
916-968 1.74e-05

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. Its N-terminal SH3 domain binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212879 [Multi-domain]  Cd Length: 56  Bit Score: 43.86  E-value: 1.74e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  916 LQAQALYPWRAKKDNHLNFNKNDVITVL--EQQDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11946      1 MEAIAKYDFKATADDELSFKRGDILKVLneECDQNWYKAELNGKDGFIPKNYIEM 55
PRK02224 PRK02224
DNA double-strand break repair Rad50 ATPase;
350-685 1.74e-05

DNA double-strand break repair Rad50 ATPase;


Pssm-ID: 179385 [Multi-domain]  Cd Length: 880  Bit Score: 49.65  E-value: 1.74e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  350 FEDKKRENFERGNLELEKRRQALleQQRKEQERLAQ---LERAEQERKE----RERQEQERKRQLELEKQLEKQRELERQ 422
Cdd:PRK02224   304 LDDADAEAVEARREELEDRDEEL--RDRLEECRVAAqahNEEAESLREDaddlEERAEELREEAAELESELEEAREAVED 381
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  423 REEERRKEIERREAAKRELE-RQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLE---FELEALNDkkhqlEGKL-- 496
Cdd:PRK02224   382 RREEIEELEEEIEELRERFGdAPVDLGNAEDFLEELREERDELREREAELEATLRTARervEEAEALLE-----AGKCpe 456
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  497 --QDIR----------CR-----LTTQRQEIESTNKSRELRIAEITHLQQQlqesqqmlgrlipEKQIlnDQLKQVQQNS 559
Cdd:PRK02224   457 cgQPVEgsphvetieeDRerveeLEAELEDLEEEVEEVEERLERAEDLVEA-------------EDRI--ERLEERREDL 521
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  560 lhrDSLVTLKRA-LEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREihNKQQLQKQKSMEAERLKQKEQERK 638
Cdd:PRK02224   522 ---EELIAERREtIEEKRERAEELRERAAELEAEAEEKREAAAEAEEEAEEARE--EVAELNSKLAELKERIESLERIRT 596
                          330       340       350       360
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469  639 IIELEKQKEEAQRRAQERDKQWlehvqQEDEHQRPRKLHEEEKLKRE 685
Cdd:PRK02224   597 LLAAIADAEDEIERLREKREAL-----AELNDERRERLAEKRERKRE 638
SH3_VAV3_2 cd11978
C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed ...
918-967 1.76e-05

C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed and functions as a phosphorylation-dependent guanine nucleotide exchange factor (GEF) for RhoA, RhoG, and Rac1. It has been implicated to function in the hematopoietic, bone, cerebellar, and cardiovascular systems. VAV3 is essential in axon guidance in neurons that control blood pressure and respiration. It is overexpressed in prostate cancer cells and it plays a role in regulating androgen receptor transcriptional activity. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212911 [Multi-domain]  Cd Length: 56  Bit Score: 43.86  E-value: 1.76e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQ--DMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd11978      3 AIARYDFCARDMRELSLLKGDVVKIYTKMstNGWWRGEVNGRVGWFPSTYVE 54
PRK12704 PRK12704
phosphodiesterase; Provisional
572-687 1.81e-05

phosphodiesterase; Provisional


Pssm-ID: 237177 [Multi-domain]  Cd Length: 520  Bit Score: 49.39  E-value: 1.81e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  572 LEAKELArQHLRDqldEVEKETRSKLQEIDIFNNQLKElRE--IHNKQQLQKQKSMEAERlKQKEQERKIIELEKQKEEA 649
Cdd:PRK12704    60 LEAKEEI-HKLRN---EFEKELRERRNELQKLEKRLLQ-KEenLDRKLELLEKREEELEK-KEKELEQKQQELEKKEEEL 133
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  650 QRRAQERDK---------------QWLEHVQQEDEHQRPRKLHEEEKLKREES 687
Cdd:PRK12704   134 EELIEEQLQelerisgltaeeakeILLEKVEEEARHEAAVLIKEIEEEAKEEA 186
COG4913 COG4913
Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];
335-672 1.81e-05

Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];


Pssm-ID: 443941 [Multi-domain]  Cd Length: 1089  Bit Score: 49.91  E-value: 1.81e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLpvTFEDKKRENFERGNLELEKRRQALLEQQRKEQ-ERLAQLERaEQERKERERQEQERKRQlELEKQL 413
Cdd:COG4913    293 LEAELEELRAEL--ARLEAELERLEARLDALREELDELEAQIRGNGgDRLEQLER-EIERLERELEERERRRA-RLEALL 368
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  414 EKQRELERQREEERRKEIERREAAKRELERQRqlEWERNRRQELLNQRNKeqedivvLKAKKKTLEFELEALNDKKHQLE 493
Cdd:COG4913    369 AALGLPLPASAEEFAALRAEAAALLEALEEEL--EALEEALAEAEAALRD-------LRRELRELEAEIASLERRKSNIP 439
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  494 GKLQDIRCRLTTQ-----------------RQE--------------------------------IESTNKSRELRIAEI 524
Cdd:COG4913    440 ARLLALRDALAEAlgldeaelpfvgelievRPEeerwrgaiervlggfaltllvppehyaaalrwVNRLHLRGRLVYERV 519
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  525 THLQQQLQESQQMLGRLIPE------------KQILN-----------DQLK----------QVQQN-SLH--------- 561
Cdd:COG4913    520 RTGLPDPERPRLDPDSLAGKldfkphpfrawlEAELGrrfdyvcvdspEELRrhpraitragQVKGNgTRHekddrrrir 599
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  562 ---------RDSLVTLKRALEAKELARQHLRDQLDEVEKET------RSKLQEIDIFNNQLKELREIHNK-QQLQKQK-- 623
Cdd:COG4913    600 sryvlgfdnRAKLAALEAELAELEEELAEAEERLEALEAELdalqerREALQRLAEYSWDEIDVASAEREiAELEAELer 679
                          410       420       430       440       450
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  624 ----SMEAERLKQ--KEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQR 672
Cdd:COG4913    680 ldasSDDLAALEEqlEELEAELEELEEELDELKGEIGRLEKELEQAEEELDELQD 734
SH3_FCHSD_2 cd11762
Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
1078-1130 1.83e-05

Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212696 [Multi-domain]  Cd Length: 57  Bit Score: 43.93  E-value: 1.83e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1078 IAQVIASYTATGPEQLTLAPGQLI-LIRKKNPG---GWWEGELQARgkkrqIGWFPA 1130
Cdd:cd11762      1 LVRALYDYEAQSDEELSFPEGAIIrILRKDDNGvddGWWEGEFNGR-----VGVFPS 52
SH3_PACSIN cd11843
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) ...
1009-1055 1.85e-05

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons (PACSIN) proteins; PACSINs, also called Synaptic dynamin-associated proteins (Syndapins), act as regulators of cytoskeletal and membrane dynamics. They bind both dynamin and Wiskott-Aldrich syndrome protein (WASP), and may provide direct links between the actin cytoskeletal machinery through WASP and dynamin-dependent endocytosis. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212777 [Multi-domain]  Cd Length: 53  Bit Score: 43.56  E-value: 1.85e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVIL-VTKKDGD-WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11843      4 ALYDYEGQESDELSFKAGDILTkLEEEDEQgWCKGRLDGRVGLYPANYV 52
DR0291 COG1579
Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General ...
364-524 1.97e-05

Predicted nucleic acid-binding protein DR0291, contains C4-type Zn-ribbon domain [General function prediction only];


Pssm-ID: 441187 [Multi-domain]  Cd Length: 236  Bit Score: 48.00  E-value: 1.97e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  364 ELEKRRQALLEQQRKEQERLAQLERA-EQERKERERQEQERKrqlELEKQLEKqrelerqreeerrkeierreaAKRELE 442
Cdd:COG1579     14 ELDSELDRLEHRLKELPAELAELEDElAALEARLEAAKTELE---DLEKEIKR---------------------LELEIE 69
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  443 RQRQLEwERNRRQeLLNQRN-KE----QEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSR 517
Cdd:COG1579     70 EVEARI-KKYEEQ-LGNVRNnKEyealQKEIESLKRRISDLEDEILELMERIEELEEELAELEAELAELEAELEEKKAEL 147

                   ....*..
gi 1034627469  518 ELRIAEI 524
Cdd:COG1579    148 DEELAEL 154
SH3_Abp1_eu cd11960
Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like ...
746-802 2.02e-05

Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like protein, is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a helical domain, and a C-terminal SH3 domain. Mammalian Abp1, unlike yeast Abp1, does not contain an acidic domain that interacts with the Arp2/3 complex. It regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. Abp1 deficiency causes abnormal organ structure and function of the spleen, heart, and lung of mice. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212893 [Multi-domain]  Cd Length: 54  Bit Score: 43.54  E-value: 2.02e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVmvkgewVDESQTGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11960      3 RALYDYQAADDTEISFDPGDII------TDIEQIDEGWWRGTGPDGTYGLFPANYVE 53
SH3_MLK4 cd12058
Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), ...
920-966 2.02e-05

Src Homology 3 domain of Mixed Lineage Kinase 4; MLK4 is a Serine/Threonine Kinase (STK), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. The specific function of MLK4 is yet to be determined. Mutations in the kinase domain of MLK4 have been detected in colorectal cancers. MLK4 contains an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212991 [Multi-domain]  Cd Length: 58  Bit Score: 43.78  E-value: 2.02e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQ------DMWWFGEVQGQKGWFPKSYV 966
Cdd:cd12058      4 ALYDYEASGEDELSLRRGDVVEVLSQDaavsgdDGWWAGKIRHRLGIFPANYV 56
SH3_PI3K_p85alpha cd11910
Src Homology 3 domain of the p85alpha regulatory subunit of Class IA Phosphatidylinositol ...
745-804 2.11e-05

Src Homology 3 domain of the p85alpha regulatory subunit of Class IA Phosphatidylinositol 3-kinases; Class I PI3Ks convert PtdIns(4,5)P2 to the critical second messenger PtdIns(3,4,5)P3. They are heterodimers and exist in multiple isoforms consisting of one catalytic subunit (out of four isoforms) and one of several regulatory subunits. Class IA PI3Ks associate with the p85 regulatory subunit family, which contains SH3, RhoGAP, and SH2 domains. The p85 subunits recruit the PI3K p110 catalytic subunit to the membrane, where p110 phosphorylates inositol lipids. Vertebrates harbor two p85 isoforms, called alpha and beta. In addition to regulating the p110 subunit, p85alpha interacts with activated FGFR3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212843  Cd Length: 75  Bit Score: 44.12  E-value: 2.11e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMV-KGEWV-------DESQTGEPGWLGG--ELKGKTGWFPANYAEKI 804
Cdd:cd11910      4 YRALYDYKKEREEDIDLHLGDILTVnKGSLLalgfsegQEARPEEIGWLNGynETTGERGDFPGTYVEYI 73
SH3_ITK cd11908
Src Homology 3 domain of Interleukin-2-inducible T-cell Kinase; ITK (also known as Tsk or Emt) ...
1160-1209 2.11e-05

Src Homology 3 domain of Interleukin-2-inducible T-cell Kinase; ITK (also known as Tsk or Emt) is a cytoplasmic (or nonreceptor) tyr kinase containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. It also contains an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation, and the Tec homology (TH) domain, which contains proline-rich and zinc-binding regions. ITK is expressed in T-cells and mast cells, and is important in their development and differentiation. Of the three Tec kinases expressed in T-cells, ITK plays the predominant role in T-cell receptor (TCR) signaling. It is activated by phosphorylation upon TCR crosslinking and is involved in the pathway resulting in phospholipase C-gamma1 activation and actin polymerization. It also plays a role in the downstream signaling of the T-cell costimulatory receptor CD28, the T-cell surface receptor CD2, and the chemokine receptor CXCR4. In addition, ITK is crucial for the development of T-helper(Th)2 effector responses. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212841 [Multi-domain]  Cd Length: 56  Bit Score: 43.46  E-value: 2.11e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWK-GEVNGQVGLFPSNYV 1209
Cdd:cd11908      3 VIALYDYQTNDPQELALRYNEEYHLLDSSEIHWWRvQDKNGHEGYVPSSYL 53
SH3_Intersectin1_3 cd11991
Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
745-800 2.23e-05

Third Src homology 3 domain (or SH3C) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (or SH3C) of ITSN1 has been shown to bind many proteins including dynamin1/2, CIN85, c-Cbl, SHIP2, Reps1, synaptojanin-1, and WNK, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212924  Cd Length: 52  Bit Score: 43.43  E-value: 2.23e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVKGEwvdesqtgEPGWLGGELKGKTGWFPANY 800
Cdd:cd11991      2 YVAMYTYESNEQGDLTFQQGDVILVTKK--------DGDWWTGTVGDKTGVFPSNY 49
SH3_GRB2_like_N cd11804
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
917-966 2.31e-05

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The N-terminal SH3 domain of GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212738 [Multi-domain]  Cd Length: 52  Bit Score: 43.11  E-value: 2.31e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVL-EQQDMWWF-GEVQGQKGWFPKSYV 966
Cdd:cd11804      1 EAVAKHDFKATAEDELSFKKGSILKVLnMEDDPNWYkAELDGKEGLIPKNYI 52
SH3_SH3BP4 cd11757
Src Homology 3 domain of SH3 domain-binding protein 4; SH3 domain-binding protein 4 (SH3BP4) ...
1159-1210 2.33e-05

Src Homology 3 domain of SH3 domain-binding protein 4; SH3 domain-binding protein 4 (SH3BP4) is also called transferrin receptor trafficking protein (TTP). SH3BP4 is an endocytic accessory protein that interacts with endocytic proteins including clathrin and dynamin, and regulates the internalization of the transferrin receptor (TfR). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212691  Cd Length: 52  Bit Score: 43.47  E-value: 2.33e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11757      1 EVVAIKDYCPTNFTTLKFSKGDHLYVLDTSGGEWWYAHNTTEMGYIPSSYVQ 52
RIB43A pfam05914
RIB43A; This family consists of several RIB43A-like eukaryotic proteins. Ciliary and flagellar ...
375-685 2.34e-05

RIB43A; This family consists of several RIB43A-like eukaryotic proteins. Ciliary and flagellar microtubules contain a specialized set of protofilaments, termed ribbons, that are composed of tubulin and several associated proteins. RIB43A was first characterized in the unicellular biflagellate, Chlamydomonas reinhardtii although highly related sequences are present in several higher eukaryotes including humans. The function of this protein is unknown although the structure of RIB43A and its association with the specialized protofilament ribbons and with basal bodies is relevant to the proposed role of ribbons in forming and stabilising doublet and triplet microtubules and in organizing their three-dimensional structure. Human RIB43A homologs could represent a structural requirement in centriole replication in dividing cells.


Pssm-ID: 461780 [Multi-domain]  Cd Length: 372  Bit Score: 48.74  E-value: 2.34e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  375 QQRKEQERLAQLERAEQERKER----------------ERQEQERKRQLELEKQLEKQRELERQREEERRKEIErreaaK 438
Cdd:pfam05914    1 VDLKEAAAIERRRQREEERKSRifnarnrtigvdvealDKQVEEKKRQEAAEKAREEAFAEEMVQNDKIALMLE-----K 75
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  439 RELERQRQLEWE----RNRRQELLNQRNKEQEDIVVLKAKKKTLE--------------FELEALNDKKHQLEGKLQdIR 500
Cdd:pfam05914   76 REEEDRRRLNKElnefRQQHQRPETRREFDLNDPDALKKDLPARVsdddprcgpssmqkFEGEDLNREERKKLQQEQ-MR 154
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  501 CRLTTQRQEIESTNKSRelRIAEITHlqqqlqesqqmlgrlipEKQILNDQLKQVQQNSLHRDSlvtlKRALeAKELARQ 580
Cdd:pfam05914  155 EWLEQQIEEKKQAEEEE--KHAELLY-----------------DQKRLERDRRALELAKLEEEC----RRAV-NAATKNF 210
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  581 HLRDQLDEVEKETRSKLQEidifnnQLKELREIH----------NKQQLQKQ-----------KSMEAERLK--QKEQER 637
Cdd:pfam05914  211 NQALAAEQAERRRLEKRQE------QEDNLAEIYnhltsdllteNPEVAQSSlgphrvipdrwKGMSPEQLKeiRKEQEQ 284
                          330       340       350       360
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469  638 KIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRprklhEEEKLKRE 685
Cdd:pfam05914  285 QREEKERRREEEKQRDAEWDRQRLELARAALLLER-----EQQRLRRE 327
SH3_BCAR1 cd12001
Src homology 3 domain of the CAS (Crk-Associated Substrate) scaffolding protein family member, ...
918-971 2.35e-05

Src homology 3 domain of the CAS (Crk-Associated Substrate) scaffolding protein family member, Breast Cancer Anti-estrogen Resistance 1; BCAR1, also called p130cas or CASS1, is the founding member of the CAS family of scaffolding proteins and was originally identified through its ability to associate with Crk. The name BCAR1 was designated because the human gene was identified in a screen for genes that promote resistance to tamoxifen. It is widely expressed and its deletion is lethal in mice. It plays a role in regulating cell motility, survival, proliferation, transformation, cancer progression, and bacterial pathogenesis. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212934  Cd Length: 68  Bit Score: 43.88  E-value: 2.35e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQ----DMWWFGEVQGQKGWFPKSYVKLISG 971
Cdd:cd12001      5 AKALYDNVAESPDELSFRKGDIMTVLERDtqglDGWWLCSLHGRQGIVPGNRLKILVG 62
SH3_Shank1 cd11982
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also ...
745-799 2.51e-05

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also called SSTRIP (Somatostatin receptor-interacting protein), is a brain-specific protein that plays a role in the construction of postsynaptic density (PSD) and the maturation of dendritic spines. Mice deficient in Shank1 show altered PSD composition, thinner PSDs, smaller dendritic spines, and weaker basal synaptic transmission, although synaptic plasticity is normal. They show increased anxiety and impaired fear memory, but also show better spatial learning. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212915 [Multi-domain]  Cd Length: 52  Bit Score: 43.08  E-value: 2.51e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  745 YRALYPFESRSHDEITIQpgdivmvKGEWVDESQTGEPGWLGGELKGKTGWFPAN 799
Cdd:cd11982      3 FMAVKPYQSQAEGEISLS-------KGEKIKVLSVGEGGFWEGQVKGRVGWFPSD 50
SH3_CD2AP_2 cd12054
Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ...
1010-1056 2.59e-05

Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CD2AP. SH3B binds to c-Cbl in a site (TPSSRPLR is the core binding motif) distinct from the c-Cbl/SH3A binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212987 [Multi-domain]  Cd Length: 55  Bit Score: 43.42  E-value: 2.59e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1010 MYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd12054      6 LFEYVPQNEDELELKVGDIIDINEEvEEGWWSGTLNGKSGLFPSNFVK 53
SH3_DNMBP_N3 cd11796
Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or ...
917-966 2.59e-05

Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin and key regulatory proteins of the actin cytoskeleton. It plays an important role in regulating cell junction configuration. The four N-terminal SH3 domains of DNMBP binds the GTPase dynamin, which plays an important role in the fission of endocytic vesicles. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212730  Cd Length: 51  Bit Score: 43.11  E-value: 2.59e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSYV 966
Cdd:cd11796      1 QARVLQDLSAQLDEELDLREGDVVTITGILDKGWFrGELNGRRGIFPEGFV 51
SH3_VAV3_2 cd11978
C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed ...
1008-1055 2.60e-05

C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed and functions as a phosphorylation-dependent guanine nucleotide exchange factor (GEF) for RhoA, RhoG, and Rac1. It has been implicated to function in the hematopoietic, bone, cerebellar, and cardiovascular systems. VAV3 is essential in axon guidance in neurons that control blood pressure and respiration. It is overexpressed in prostate cancer cells and it plays a role in regulating androgen receptor transcriptional activity. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212911 [Multi-domain]  Cd Length: 56  Bit Score: 43.47  E-value: 2.60e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGD--WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11978      4 IARYDFCARDMRELSLLKGDVVKIYTKMSTngWWRGEVNGRVGWFPSTYV 53
SH3_MPP6 cd12038
Src Homology 3 domain of Membrane Protein, Palmitoylated 6 (or MAGUK p55 subfamily member 6); ...
1164-1209 2.69e-05

Src Homology 3 domain of Membrane Protein, Palmitoylated 6 (or MAGUK p55 subfamily member 6); MPP6, also called Veli-associated MAGUK 1 (VAM-1) or PALS2, is a scaffolding protein that binds to Veli-1, a homolog of Caenorhabditis Lin-7. It is one of seven vertebrate homologs of the Drosophila Stardust protein, which is required in establishing cell polarity, and it contains two L27 domains followed by the core of three domains characteristic of MAGUK (membrane-associated guanylate kinase) proteins: PDZ, SH3, and guanylate kinase (GuK). In addition, it also contains the Hook (Protein 4.1 Binding) motif in between the SH3 and GuK domains. The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212971  Cd Length: 61  Bit Score: 43.51  E-value: 2.69e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1164 YDYTAQNDD-------ELAFNKGQIINVLNKEDPDWWKG---EVNGQVGLFPSNYV 1209
Cdd:cd12038      6 FDYNPYNDNlipckeaGLKFSKGEILQIVNREDPNWWQAshvKEGGSAGLIPSQFL 61
SMC_N pfam02463
RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The ...
331-687 2.73e-05

RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. The eukaryotic SMC proteins form two kind of heterodimers: the SMC1/SMC3 and the SMC2/SMC4 types. These heterodimers constitute an essential part of higher order complexes, which are involved in chromatin and DNA dynamics. This family also includes the RecF and RecN proteins that are involved in DNA metabolism and recombination.


Pssm-ID: 426784 [Multi-domain]  Cd Length: 1161  Bit Score: 49.20  E-value: 2.73e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  331 EEPVLEDEQQQLEKKLPVTFE----DKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQ 406
Cdd:pfam02463  417 LEDLLKEEKKEELEILEEEEEsielKQGKLTEEKEELEKQELKLLKDELELKKSEDLLKETQLVKLQEQLELLLSRQKLE 496
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  407 LELEKQLEKQRELERQREEERRKEIERREAAKRELERQ--------------RQLEWERNRRQELLNQRNKEQEDIVVLK 472
Cdd:pfam02463  497 ERSQKESKARSGLKVLLALIKDGVGGRIISAHGRLGDLgvavenykvaistaVIVEVSATADEVEERQKLVRALTELPLG 576
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  473 AKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQL 552
Cdd:pfam02463  577 ARKLRLLIPKLKLPLKSIAVLEIDPILNLAQLDKATLEADEDDKRAKVVEGILKDTELTKLKESAKAKESGLRKGVSLEE 656
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  553 KQVQQNSLHRDSLVTLKRALEAKELarqhLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLK- 631
Cdd:pfam02463  657 GLAEKSEVKASLSELTKELLEIQEL----QEKAESELAKEEILRRQLEIKKKEQREKEELKKLKLEAEELLADRVQEAQd 732
                          330       340       350       360       370       380
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  632 -----QKEQERKIIElEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKREES 687
Cdd:pfam02463  733 kineeLKLLKQKIDE-EEEEEEKSRLKKEEKEEEKSELSLKEKELAEEREKTEKLKVEEEK 792
C2B_RasGAP cd08675
C2 domain second repeat of Ras GTPase activating proteins (GAPs); RasGAPs suppress Ras ...
1598-1682 2.80e-05

C2 domain second repeat of Ras GTPase activating proteins (GAPs); RasGAPs suppress Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. The proteins here all contain two tandem C2 domains, a Ras-GAP domain, and a pleckstrin homology (PH)-like domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-I topology.


Pssm-ID: 176057 [Multi-domain]  Cd Length: 137  Bit Score: 45.44  E-value: 2.80e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1598 LMVNVVEGIELKPCRShGKSNPYCEVTMGSQCHI----TKTIQDTLNPKWNSNCQF---------------FIRDLEQEV 1658
Cdd:cd08675      1 LSVRVLECRDLALKSN-GTCDPFARVTLNYSSKTdtkrTKVKKKTNNPRFDEAFYFeltigfsyekksfkvEEEDLEKSE 79
                           90       100
                   ....*....|....*....|....
gi 1034627469 1659 LCITVFERDQFSPDDFLGrtEIRV 1682
Cdd:cd08675     80 LRVELWHASMVSGDDFLG--EVRI 101
SH3_CD2AP_1 cd12053
First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ...
749-804 2.84e-05

First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CD2AP. SH3A binds to the PXXXPR motif present in c-Cbl and the cytoplasmic domain of cell adhesion protein CD2. Its interaction with CD2 anchors CD2 at sites of cell contact. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212986  Cd Length: 56  Bit Score: 43.29  E-value: 2.84e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  749 YPFESRSHDEITIQPGDIVMvkgewvDESQTGEPGWLGGELKGKTGWFPANYAEKI 804
Cdd:cd12053      6 YDYDAVHEDELTIRVGEIIR------NVKKLEEEGWLEGELNGRRGMFPDNFVKEI 55
SH3_SH3RF3_3 cd11925
Third Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
1161-1209 2.86e-05

Third Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212858  Cd Length: 57  Bit Score: 43.06  E-value: 2.86e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEV--NGQVGLFPSNYV 1209
Cdd:cd11925      4 LALYAYKPQKNDELELRKGEMYRVIEKCQDGWFKGTSlrTGVSGVFPGNYV 54
SH3_DNMBP_C2 cd12141
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
743-803 2.90e-05

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213017 [Multi-domain]  Cd Length: 57  Bit Score: 43.26  E-value: 2.90e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  743 VYYrALYPFESRSHDEITIQPGDIVMVKgEWVDesQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd12141      1 VYY-AVYTFKARSPNELSVSANQRVRIL-EFSD--LTGNKEWWLAEANGQKGYVPSNYIRK 57
SH3_Sorbs_3 cd11780
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) ...
1007-1055 2.92e-05

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the third SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212714 [Multi-domain]  Cd Length: 55  Bit Score: 43.06  E-value: 2.92e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVG--DKAGVFPSNYV 1055
Cdd:cd11780      2 YRALYSYTPQNEDELELREGDIVYVMEKCDDgWFVGTSErtGLFGTFPGNYV 53
SH3_Sorbs1_1 cd11919
First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; ...
917-969 2.95e-05

First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212852 [Multi-domain]  Cd Length: 55  Bit Score: 43.03  E-value: 2.95e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSYVKLI 969
Cdd:cd11919      2 PARAKFDFKAQTLKELPLQKGDIVYIYKQIDQNWYeGEHHGRVGIFPRSYIELL 55
SH3_Tks4_2 cd12076
Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also ...
1081-1134 2.96e-05

Second Src homology 3 domain of Tyrosine kinase substrate with four SH3 domains; Tks4, also called SH3 and PX domain-containing protein 2B (SH3PXD2B) or HOFI, is a Src substrate and scaffolding protein that plays an important role in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. It is required in the formation of functional podosomes, EGF-induced membrane ruffling, and lamellipodia generation. It plays an important role in cellular attachment and cell spreading. Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. It contains an N-terminal Phox homology (PX) domain and four SH3 domains. This model characterizes the second SH3 domain of Tks4. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213009 [Multi-domain]  Cd Length: 54  Bit Score: 43.10  E-value: 2.96e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPGGWWegELQARGKKrqiGWFPANYVK 1134
Cdd:cd12076      5 VIYPYTARDQDEINLEKGAVVEVIQKNLEGWW--KIRYQGKE---GWAPASYLK 53
SH3_MLK1-3 cd12059
Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine ...
1085-1133 2.97e-05

Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Little is known about the specific function of MLK1, also called MAP3K9. It is capable of activating the c-Jun N-terminal kinase pathway. Mice lacking both MLK1 and MLK2 are viable, fertile, and have normal life spans. MLK2, also called MAP3K10, is abundant in brain, skeletal muscle, and testis. It functions upstream of the MAPK, c-Jun N-terminal kinase. It binds hippocalcin, a calcium-sensor protein that protects neurons against calcium-induced cell death. Both MLK2 and hippocalcin may be associated with the pathogenesis of Parkinson's disease. MLK3, also called MAP3K11, is highly expressed in breast cancer cells and its signaling through c-Jun N-terminal kinase has been implicated in the migration, invasion, and malignancy of cancer cells. It also functions as a negative regulator of Inhibitor of Nuclear Factor-KappaB Kinase (IKK) and thus, impacts inflammation and immunity. MLKs contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212992 [Multi-domain]  Cd Length: 58  Bit Score: 43.22  E-value: 2.97e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPG-----GWWEGELQARgkkrqIGWFPANYV 1133
Cdd:cd12059      8 YEASAEDELTLRRGDRVEVLSKDSAvsgdeGWWTGKINDR-----VGIFPSNYV 56
COG4372 COG4372
Uncharacterized protein, contains DUF3084 domain [Function unknown];
353-659 2.98e-05

Uncharacterized protein, contains DUF3084 domain [Function unknown];


Pssm-ID: 443500 [Multi-domain]  Cd Length: 370  Bit Score: 48.36  E-value: 2.98e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  353 KKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEkQLEKQrelerqreeerrkeie 432
Cdd:COG4372      5 GEKVGKARLSLFGLRPKTGILIAALSEQLRKALFELDKLQEELEQLREELEQAREELE-QLEEE---------------- 67
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  433 rREAAKRELER-QRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIE 511
Cdd:COG4372     68 -LEQARSELEQlEEELEELNEQLQAAQAELAQAQEELESLQEEAEELQEELEELQKERQDLEQQRKQLEAQIAELQSEIA 146
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  512 STNKSRELRIAEITHLQQQLQESQQMLGRLIPEK--QILNDQLKQVQQNSLHRDSLVTLKRALEAKEL----ARQHLRDQ 585
Cdd:COG4372    147 EREEELKELEEQLESLQEELAALEQELQALSEAEaeQALDELLKEANRNAEKEEELAEAEKLIESLPRelaeELLEAKDS 226
                          250       260       270       280       290       300       310
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  586 LDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQ 659
Cdd:COG4372    227 LEAKLGLALSALLDALELEEDKEELLEEVILKEIEELELAILVEKDTEEEELEIAALELEALEEAALELKLLAL 300
SH3_Abp1_fungi_C2 cd11961
Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
746-802 3.01e-05

Second C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212894 [Multi-domain]  Cd Length: 53  Bit Score: 42.90  E-value: 3.01e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVmVKGEWVDesqtgePGWLGGELKGKTGWFPANYAE 802
Cdd:cd11961      3 KALYDYDAAEDNELSFFENDKI-INIEFVD------DDWWLGECHGSRGLFPSNYVE 52
SH3_2 pfam07653
Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in ...
744-804 3.18e-05

Variant SH3 domain; SH3 (Src homology 3) domains are often indicative of a protein involved in signal transduction related to cytoskeletal organization. First described in the Src cytoplasmic tyrosine kinase. The structure is a partly opened beta barrel.


Pssm-ID: 429575 [Multi-domain]  Cd Length: 54  Bit Score: 42.97  E-value: 3.18e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKGEwvdesqtGEPGWLGGELKGKTGWFPANYAEKI 804
Cdd:pfam07653    1 YGRVIFDYVGTDKNGLTLKKGDVVKVLGK-------DNDGWWEGETGGRVGLVPSTAVEEI 54
SH3_Vinexin_2 cd11924
Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 ...
1159-1211 3.21e-05

Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212857  Cd Length: 56  Bit Score: 43.03  E-value: 3.21e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNG--QVGLFPSNYVKL 1211
Cdd:cd11924      2 EAVAQYTFKGDLEVELSFRKGEHICLIRKVNENWYEGRITGtgRQGIFPASYVQV 56
C2_KIAA0528-like cd08688
C2 domain found in the Human KIAA0528 cDNA clone; The members of this CD are named after the ...
1612-1680 3.34e-05

C2 domain found in the Human KIAA0528 cDNA clone; The members of this CD are named after the Human KIAA0528 cDNA clone. All members here contain a single C2 repeat. No other information on this protein is currently known. The C2 domain was first identified in PKC. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176070 [Multi-domain]  Cd Length: 110  Bit Score: 44.61  E-value: 3.34e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1612 RSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSncQFFI-----RDLEQEVLCITVFERDQFSPDDFLGRTEI 1680
Cdd:cd08688     16 RSSDLTDAFVEVKFGSTTYKTDVVKKSLNPVWNS--EWFRfevddEELQDEPLQIRVMDHDTYSANDAIGKVYI 87
tolA PRK09510
cell envelope integrity inner membrane protein TolA; Provisional
615-719 3.35e-05

cell envelope integrity inner membrane protein TolA; Provisional


Pssm-ID: 236545 [Multi-domain]  Cd Length: 387  Bit Score: 48.26  E-value: 3.35e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  615 NKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKREESVKKKDGE 694
Cdd:PRK09510    65 NRQQQQQKSAKRAEEQRKKKEQQQAEELQQKQAAEQERLKQLEKERLAAQEQKKQAEEAAKQAALKQKQAEEAAAKAAAA 144
                           90       100
                   ....*....|....*....|....*
gi 1034627469  695 EKGKQEAQDKlgrlfhQHQEPAKPA 719
Cdd:PRK09510   145 AKAKAEAEAK------RAAAAAKKA 163
PRK03918 PRK03918
DNA double-strand break repair ATPase Rad50;
369-655 3.43e-05

DNA double-strand break repair ATPase Rad50;


Pssm-ID: 235175 [Multi-domain]  Cd Length: 880  Bit Score: 48.91  E-value: 3.43e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  369 RQAL-LEQQRKEQERLAQLERAEQERKER-----ERQEQERKRQLELEKQLEKqrelerqreeeRrkeierreaakreLE 442
Cdd:PRK03918   152 RQILgLDDYENAYKNLGEVIKEIKRRIERlekfiKRTENIEELIKEKEKELEE-----------V-------------LR 207
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  443 RQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTnKSRELRIA 522
Cdd:PRK03918   208 EINEISSELPELREELEKLEKEVKELEELKEEIEELEKELESLEGSKRKLEEKIRELEERIEELKKEIEEL-EEKVKELK 286
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  523 EITHLQQqlqesqqmlgrlipEKQILNDQLKQvqqnslHRDSLVTLKRALEAKELARQHLRDQLDEVE------KETRSK 596
Cdd:PRK03918   287 ELKEKAE--------------EYIKLSEFYEE------YLDELREIEKRLSRLEEEINGIEERIKELEekeerlEELKKK 346
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  597 LQEIDifnNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQE 655
Cdd:PRK03918   347 LKELE---KRLEELEERHELYEEAKAKKEELERLKKRLTGLTPEKLEKELEELEKAKEE 402
DUF4686 pfam15742
Domain of unknown function (DUF4686); This family of proteins is found in eukaryotes. Proteins ...
367-682 3.44e-05

Domain of unknown function (DUF4686); This family of proteins is found in eukaryotes. Proteins in this family are typically between 498 and 775 amino acids in length. There is a conserved DLK sequence motif.


Pssm-ID: 464838 [Multi-domain]  Cd Length: 384  Bit Score: 48.14  E-value: 3.44e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  367 KRRQALLEQQRKEQERLAQ-LER-------AEQE-RKERER-----------QEQERKRQLELeKQLEKQRELERQREEE 426
Cdd:pfam15742    2 SSGEKLKYQQQEEVQQLRQnLQRlqilctsAEKElRYERGKnldlkqhnsllQEENIKIKAEL-KQAQQKLLDSTKMCSS 80
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  427 RRKEIerreaaKRELERQRQLEWERNRRQELLNQRNKEQEDIVVLKAK-----KKTLEFE-----------LEALNDKKH 490
Cdd:pfam15742   81 LTAEW------KHCQQKIRELELEVLKQAQSIKSQNSLQEKLAQEKSRvadaeEKILELQqklehahkvclTDTCILEKK 154
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  491 QLEGK---LQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQIlndqlkQVQQNSLHRDSLVT 567
Cdd:pfam15742  155 QLEERikeASENEAKLKQQYQEEQQKRKLLDQNVNELQQQVRSLQDKEAQLEMTNSQQQL------RIQQQEAQLKQLEN 228
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  568 LKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQL-KELREIHNKQQLQKQKSMEAERLKQKEQER---KIIELE 643
Cdd:pfam15742  229 EKRKSDEHLKSNQELSEKLSSLQQEKEALQEELQQVLKQLdVHVRKYNEKHHHHKAKLRRAKDRLVHEVEQrdeRIKQLE 308
                          330       340       350       360
                   ....*....|....*....|....*....|....*....|....*
gi 1034627469  644 KQKEEAQRRAqERDKQWLEHVQQEDEH--QRPRKL----HEEEKL 682
Cdd:pfam15742  309 NEIGILQQQS-EKEKAFQKQVTAQNEIllLEKRKLleqlTEQEEL 352
mukB PRK04863
chromosome partition protein MukB;
351-667 3.54e-05

chromosome partition protein MukB;


Pssm-ID: 235316 [Multi-domain]  Cd Length: 1486  Bit Score: 48.80  E-value: 3.54e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  351 EDKKRENFERGnLELEKRRQALLEQQRKEQERLAQLERAEQERKERER----------------------QEQERKRQ-- 406
Cdd:PRK04863   278 ANERRVHLEEA-LELRRELYTSRRQLAAEQYRLVEMARELAELNEAESdleqdyqaasdhlnlvqtalrqQEKIERYQad 356
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  407 -LELEKQLEKQRELERQREEERRKEIERREAAKRELER-QRQLEwERNRRQELLNQRNKEQEDIVVLKAKKKTL----EF 480
Cdd:PRK04863   357 lEELEERLEEQNEVVEEADEQQEENEARAEAAEEEVDElKSQLA-DYQQALDVQQTRAIQYQQAVQALERAKQLcglpDL 435
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  481 ELEALNDKKHQLEGKLQDircrLTTQRQEIEstnksRELRIAEITHLqqqlqesqqmlgrlIPEK--QILNDQLKQVQQN 558
Cdd:PRK04863   436 TADNAEDWLEEFQAKEQE----ATEELLSLE-----QKLSVAQAAHS--------------QFEQayQLVRKIAGEVSRS 492
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  559 SLHRDSLVTLKRALEAKELA--RQHLRDQLDEVEKETRSKlqeidifNNQLKELREIHNKQQLQKQKSMEAERLkQKEQE 636
Cdd:PRK04863   493 EAWDVARELLRRLREQRHLAeqLQQLRMRLSELEQRLRQQ-------QRAERLLAEFCKRLGKNLDDEDELEQL-QEELE 564
                          330       340       350
                   ....*....|....*....|....*....|..
gi 1034627469  637 RKIIELEKQKEEA-QRRAQERDKQwlEHVQQE 667
Cdd:PRK04863   565 ARLESLSESVSEArERRMALRQQL--EQLQAR 594
tolA PRK09510
cell envelope integrity inner membrane protein TolA; Provisional
574-686 4.05e-05

cell envelope integrity inner membrane protein TolA; Provisional


Pssm-ID: 236545 [Multi-domain]  Cd Length: 387  Bit Score: 47.88  E-value: 4.05e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  574 AKELARQHlRDQLDEVEKETRSKLQEidifNNQLKELREIHNKQQlQKQKSMEAERLKQKEQErkiieleKQKEEAQRRA 653
Cdd:PRK09510    61 VEQYNRQQ-QQQKSAKRAEEQRKKKE----QQQAEELQQKQAAEQ-ERLKQLEKERLAAQEQK-------KQAEEAAKQA 127
                           90       100       110
                   ....*....|....*....|....*....|...
gi 1034627469  654 QERDKQWLEHVQQEDEHQrprKLHEEEKLKREE 686
Cdd:PRK09510   128 ALKQKQAEEAAAKAAAAA---KAKAEAEAKRAA 157
SH3_SNX9_like cd11763
Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox ...
917-966 4.25e-05

Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. This subfamily consists of SH3 domain containing SNXs including SNX9, SNX18, SNX33, and similar proteins. SNX9 is localized to plasma membrane endocytic sites and acts primarily in clathrin-mediated endocytosis, while SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212697 [Multi-domain]  Cd Length: 55  Bit Score: 42.70  E-value: 4.25e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQ--DMWWFGE-VQGQKGWFPKSYV 966
Cdd:cd11763      1 KVRALYDFDSQPSGELSLRAGEVLTITRQDvgDGWLEGRnSRGEVGLFPSSYV 53
SH3_p47phox_1 cd12021
First or N-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also called ...
745-802 4.25e-05

First or N-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also called Neutrophil Cytosolic Factor 1; p47phox, or NCF1, is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox), which plays a key role in the ability of phagocytes to defend against bacterial infections. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p47phox is required for activation of NADH oxidase and plays a role in translocation. It contains an N-terminal Phox homology (PX) domain, tandem SH3 domains (N-SH3 and C-SH3), a polybasic/autoinhibitory region, and a C-terminal proline-rich region (PRR). This model characterizes the first SH3 domain (or N-SH3) of p47phox. In its inactive state, the tandem SH3 domains interact intramolecularly with the autoinhibitory region; upon activation, the tandem SH3 domains are exposed through a conformational change, resulting in their binding to the PRR of p22phox and the activation of NADPH oxidase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212954 [Multi-domain]  Cd Length: 53  Bit Score: 42.64  E-value: 4.25e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVmvkgEWVDESQTGepgWLGGELKGKTGWFPANYAE 802
Cdd:cd12021      2 YRAIADYEKSSKSEMALKTGDVV----EVVEKSENG---WWFCQLKAKRGWVPASYLE 52
SH3_Tec_like cd11768
Src Homology 3 domain of Tec-like Protein Tyrosine Kinases; The Tec (Tyrosine kinase expressed ...
1008-1056 4.30e-05

Src Homology 3 domain of Tec-like Protein Tyrosine Kinases; The Tec (Tyrosine kinase expressed in hepatocellular carcinoma) subfamily is composed of Tec, Btk, Bmx (Etk), Itk (Tsk, Emt), Rlk (Txk), and similar proteins. They are cytoplasmic (or nonreceptor) tyr kinases containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. Most Tec subfamily members (except Rlk) also contain an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation. In addition, some members contain the Tec homology (TH) domain, which contains proline-rich and zinc-binding regions. Tec kinases are expressed mainly by haematopoietic cells, although Tec and Bmx are also found in endothelial cells. B-cells express Btk and Tec, while T-cells express Itk, Txk, and Tec. Collectively, Tec kinases are expressed in a variety of myeloid cells such as mast cells, platelets, macrophages, and dendritic cells. Each Tec kinase shows a distinct cell-type pattern of expression. The function of Tec kinases in lymphoid cells have been studied extensively. They play important roles in the development, differentiation, maturation, regulation, survival, and function of B-cells and T-cells. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212702 [Multi-domain]  Cd Length: 54  Bit Score: 42.65  E-value: 4.30e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGD-VILVTKKDGDWWtgTVGDK---AGVFPSNYVR 1056
Cdd:cd11768      3 VALYDFQPIEPGDLPLEKGEeYVVLDDSNEHWW--RARDKngnEGYIPSNYVT 53
SH3_Intersectin2_3 cd11992
Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
745-800 4.40e-05

Third Src homology 3 domain (or SH3C) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The third SH3 domain (SH3C) of ITSN2 has been shown to bind the K15 protein of Kaposi's sarcoma-associated herpesvirus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212925  Cd Length: 52  Bit Score: 42.69  E-value: 4.40e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  745 YRALYPFESrshdeitIQPGDIVMVKGEWVDESQT-GEpgWLGGELKGKTGWFPANY 800
Cdd:cd11992      2 YIALYPYSS-------SEPGDLTFNEGEEILVTQKdGE--WWTGSIEDRTGIFPSNY 49
HCR pfam07111
Alpha helical coiled-coil rod protein (HCR); This family consists of several mammalian alpha ...
478-675 4.57e-05

Alpha helical coiled-coil rod protein (HCR); This family consists of several mammalian alpha helical coiled-coil rod HCR proteins. The function of HCR is unknown but it has been implicated in psoriasis in humans and is thought to affect keratinocyte proliferation.


Pssm-ID: 284517 [Multi-domain]  Cd Length: 749  Bit Score: 48.21  E-value: 4.57e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  478 LEFELEALNDKKHQLEGKLQdIRCRLTTQRqeiesTNKSRELRIAEithlqqqlqesqqmLGRLIPEKQILNDQLKQVQQ 557
Cdd:pfam07111  479 LSLELEQLREERNRLDAELQ-LSAHLIQQE-----VGRAREQGEAE--------------RQQLSEVAQQLEQELQRAQE 538
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  558 nslhrdSLVTLKRALEA----------------------KELARQHLRDQLDEVEKETRSKLQEIDifnNQLKELREIHN 615
Cdd:pfam07111  539 ------SLASVGQQLEVarqgqqesteeaaslrqeltqqQEIYGQALQEKVAEVETRLREQLSDTK---RRLNEARREQA 609
                          170       180       190       200       210       220
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  616 KQQLQ-KQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQ-----ERDKQ-WLEHVQQEDEHQRPRK 675
Cdd:pfam07111  610 KAVVSlRQIQHRATQEKERNQELRRLQDEARKEEGQRLARrvqelERDKNlMLATLQQEGLLSRYKQ 676
C2A_Synaptotagmin-8 cd08387
C2A domain first repeat present in Synaptotagmin 8; Synaptotagmin is a membrane-trafficking ...
1596-1685 4.61e-05

C2A domain first repeat present in Synaptotagmin 8; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176033 [Multi-domain]  Cd Length: 124  Bit Score: 44.70  E-value: 4.61e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKTIQ---DTLNPKWNSNCQFFIR--DLEQEVLCITVFERDQFS 1670
Cdd:cd08387     16 GILNVKLIQARNLQPRDFSGTADPYCKVRLLPDRSNTKQSKihkKTLNPEFDESFVFEVPpqELPKRTLEVLLYDFDQFS 95
                           90
                   ....*....|....*
gi 1034627469 1671 PDDFLGRTEIRVADI 1685
Cdd:cd08387     96 RDECIGVVELPLAEV 110
PTZ00266 PTZ00266
NIMA-related protein kinase; Provisional
355-461 4.62e-05

NIMA-related protein kinase; Provisional


Pssm-ID: 173502 [Multi-domain]  Cd Length: 1021  Bit Score: 48.58  E-value: 4.62e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  355 RENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKqLEKQRELerqreeerrkeierr 434
Cdd:PTZ00266   432 KDHAERARIEKENAHRKALEMKILEKKRIERLEREERERLERERMERIERERLERER-LERERLE--------------- 495
                           90       100
                   ....*....|....*....|....*..
gi 1034627469  435 eaaKRELERQRQLEWERNRRQELLNQR 461
Cdd:PTZ00266   496 ---RDRLERDRLDRLERERVDRLERDR 519
MAP7 pfam05672
MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is ...
606-686 4.80e-05

MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is presumably controlled by tissue-specific microtubule-associated proteins (MAPs). The 115-kDa epithelial MAP (E-MAP-115/MAP7) has been identified as a microtubule-stabilising protein predominantly expressed in cell lines of epithelial origin. The binding of this microtubule associated protein is nucleotide independent.


Pssm-ID: 461709 [Multi-domain]  Cd Length: 153  Bit Score: 45.42  E-value: 4.80e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  606 QLKELREIHNKQQLQKQksmEAERLKQKEQERKIIE-LEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKR 684
Cdd:pfam05672   22 QAREQREREEQERLEKE---EEERLRKEELRRRAEEeRARREEEARRLEEERRREEEERQRKAEEEAEEREQREQEEQER 98

                   ..
gi 1034627469  685 EE 686
Cdd:pfam05672   99 LQ 100
SH3_PACSIN3 cd11997
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 3 (PACSIN3); ...
743-802 4.95e-05

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 3 (PACSIN3); PACSIN 3 or Syndapin III (Synaptic dynamin-associated protein III) is expressed ubiquitously and regulates glucose uptake in adipocytes through its role in GLUT1 trafficking. It also modulates the subcellular localization and stimulus-specific function of the cation channel TRPV4. PACSINs act as regulators of cytoskeletal and membrane dynamics. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212930 [Multi-domain]  Cd Length: 56  Bit Score: 42.64  E-value: 4.95e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  743 VYYRALYPFESRSHDEITIQPGDIVMVKGEwvdesqTGEPGWLGGEL-KGKTGWFPANYAE 802
Cdd:cd11997      2 VRVRALYDYTGQEADELSFKAGEELLKIGE------EDEQGWCKGRLlSGRIGLYPANYVE 56
SH3_Sho1p cd11855
Src homology 3 domain of High osmolarity signaling protein Sho1p; Sho1p (or Sho1), also called ...
1009-1057 5.04e-05

Src homology 3 domain of High osmolarity signaling protein Sho1p; Sho1p (or Sho1), also called SSU81 (Suppressor of SUA8-1 mutation), is a yeast membrane protein that regulates adaptation to high salt conditions by activating the HOG (high-osmolarity glycerol) pathway. High salt concentrations lead to the localization to the membrane of the MAPKK Pbs2, which is then activated by the MAPKK Ste11 and in turn, activates the MAPK Hog1. Pbs2 is localized to the membrane though the interaction of its PxxP motif with the SH3 domain of Sho1p. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212789 [Multi-domain]  Cd Length: 55  Bit Score: 42.41  E-value: 5.04e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1009 AMYTYESSEQ--GDLTFQQGDVILVTKKDGDWWTGTVGD-KAGVFPSNYVRL 1057
Cdd:cd11855      4 ALYPYDASPDdpNELSFEKGEILEVSDTSGKWWQARKSNgETGICPSNYLQL 55
SH3_PLCgamma1 cd11970
Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is ...
1085-1134 5.13e-05

Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is essential in growth and development. It is activated by the TrkA receptor tyrosine kinase and functions as a key regulator of cell differentiation. It is also the predominant PLCgamma in T cells and is required for T cell and NK cell function. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212903  Cd Length: 60  Bit Score: 42.67  E-value: 5.13e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPGGWWEGELqarGKKRQIgWFPANYVK 1134
Cdd:cd11970     12 YKAQREDELTFTKNAIIQNVEKQEGGWWRGDY---GGKKQL-WFPSNYVE 57
SH3_RUSC1_like cd11810
Src homology 3 domain of RUN and SH3 domain-containing proteins 1 and 2; RUSC1 and RUSC2, that ...
1160-1208 5.16e-05

Src homology 3 domain of RUN and SH3 domain-containing proteins 1 and 2; RUSC1 and RUSC2, that were originally characterized in silico. They are adaptor proteins consisting of RUN, leucine zipper, and SH3 domains. RUSC1, also called NESCA (New molecule containing SH3 at the carboxy-terminus), is highly expressed in the brain and is translocated to the nuclear membrane from the cytoplasm upon stimulation with neurotrophin. It plays a role in facilitating neurotrophin-dependent neurite outgrowth. It also interacts with NEMO (or IKKgamma) and may function in NEMO-mediated activation of NF-kB. RUSC2, also called Iporin, is expressed ubiquitously with highest amounts in the brain and testis. It interacts with the small GTPase Rab1 and the Golgi matrix protein GM130, and may function in linking GTPases to certain intracellular signaling pathways. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212744  Cd Length: 50  Bit Score: 42.43  E-value: 5.16e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNY 1208
Cdd:cd11810      2 VRALCHHVATDSGQLSFRKGDILRVIARVDDDWLLCTRGSTKGLVPLSY 50
SH3_BCAR1 cd12001
Src homology 3 domain of the CAS (Crk-Associated Substrate) scaffolding protein family member, ...
1162-1215 5.16e-05

Src homology 3 domain of the CAS (Crk-Associated Substrate) scaffolding protein family member, Breast Cancer Anti-estrogen Resistance 1; BCAR1, also called p130cas or CASS1, is the founding member of the CAS family of scaffolding proteins and was originally identified through its ability to associate with Crk. The name BCAR1 was designated because the human gene was identified in a screen for genes that promote resistance to tamoxifen. It is widely expressed and its deletion is lethal in mice. It plays a role in regulating cell motility, survival, proliferation, transformation, cancer progression, and bacterial pathogenesis. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212934  Cd Length: 68  Bit Score: 42.72  E-value: 5.16e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1162 GMYDYTAQNDDELAFNKGQIINVLNKEDP---DWWKGEVNGQVGLFPSNYVKLTTDM 1215
Cdd:cd12001      7 ALYDNVAESPDELSFRKGDIMTVLERDTQgldGWWLCSLHGRQGIVPGNRLKILVGM 63
SH3_Shank3 cd11984
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also ...
763-799 5.16e-05

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also called ProSAP2 (Proline-rich synapse-associated protein 2), is widely expressed. It plays a role in the formation of dendritic spines and synapses. Haploinsufficiency of the Shank3 gene causes the 22q13 deletion/Phelan-McDermid syndrome, and variants of Shank3 have been implicated in autism spectrum disorder, schizophrenia, and intellectual disability. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212917  Cd Length: 52  Bit Score: 42.25  E-value: 5.16e-05
                           10        20        30
                   ....*....|....*....|....*....|....*..
gi 1034627469  763 PGDIVMVKGEWVDESQTGEPGWLGGELKGKTGWFPAN 799
Cdd:cd11984     14 EGEIQLNRGERVKVLSIGEGGFWEGTVKGRTGWFPAD 50
SH3_Sorbs_1 cd11781
First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
1079-1135 5.16e-05

First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212715 [Multi-domain]  Cd Length: 53  Bit Score: 42.33  E-value: 5.16e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARgkkrqIGWFPANYVKL 1135
Cdd:cd11781      2 ARALYPFKAQSAKELSLKKGDIIYIRRQIDKNWYEGEHNGR-----VGIFPASYVEI 53
SH3_Sorbs1_3 cd11916
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), ...
1080-1136 5.19e-05

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212849 [Multi-domain]  Cd Length: 59  Bit Score: 42.67  E-value: 5.19e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQargKKRQIGWFPANYVKLL 1136
Cdd:cd11916      5 QALYSYAPQNDDELELRDGDIVDVMEKCDDGWFVGTSR---RTKQFGTFPGNYVKLL 58
SH3_Nck2_3 cd11903
Third Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
919-970 5.42e-05

Third Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212836 [Multi-domain]  Cd Length: 59  Bit Score: 42.35  E-value: 5.42e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQD---MWW-FGEVQGQKGWFPKSYVKLIS 970
Cdd:cd11903      4 QTLYPFSSVTEEELNFEKGETMEVIEKPEndpEWWkCKNSRGQVGLVPKNYVVVLS 59
SH3_Intersectin1_1 cd11987
First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1085-1134 5.44e-05

First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212920 [Multi-domain]  Cd Length: 55  Bit Score: 42.29  E-value: 5.44e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPG--GWWEGELqargkKRQIGWFPANYVK 1134
Cdd:cd11987      8 FEARSHDEITIQPGDIVMVDESQTGepGWLGGEL-----KGKTGWFPANYAE 54
SH3_SH3RF_C cd11785
C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), ...
745-803 5.49e-05

C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the fourth SH3 domain, located at the C-terminus of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212719  Cd Length: 55  Bit Score: 42.45  E-value: 5.49e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELK--GKTGWFPANYAEK 803
Cdd:cd11785      2 YRVIVPYPPQSEAELELKEGDIVFV-------HKKREDGWFKGTLQrtGKTGLFPGSFVES 55
SH3_Stac_1 cd11833
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) ...
920-966 5.67e-05

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing (Stac) proteins; Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. This model represents the first C-terminal SH3 domain of Stac1 and Stac3, and the single C-terminal SH3 domain of Stac2. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212767 [Multi-domain]  Cd Length: 53  Bit Score: 42.10  E-value: 5.67e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYV 966
Cdd:cd11833      4 ALYKFKPQENEDLEMRPGDKITLLDDSNEdWWKGKIEDRVGFFPANFV 51
SH3_Myosin-I_fungi cd11858
Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent ...
1163-1211 5.75e-05

Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Saccharomyces cerevisiae has two myosins-I, Myo3 and Myo5, which are involved in endocytosis and the polarization of the actin cytoskeleton. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212792 [Multi-domain]  Cd Length: 55  Bit Score: 42.37  E-value: 5.75e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQV--GLFPSNYVKL 1211
Cdd:cd11858      5 LYDFAGSVANELSLKKDDIVYIVQKEDNGWWLAKKLDESkeGWVPAAYLEE 55
SH3_Intersectin_2 cd11837
Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor ...
1080-1135 5.82e-05

Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212771 [Multi-domain]  Cd Length: 53  Bit Score: 42.35  E-value: 5.82e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1080 QVIASY--TATGPEQLTLAPGQLILIRKKNPGgWWEGELQargkKRQIGWFPANYVKL 1135
Cdd:cd11837      1 TATALYpwRAKKENHLSFAKGDIITVLEQQEM-WWFGELE----GGEEGWFPKSYVKE 53
SH3_ASAP1 cd11965
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
917-969 5.93e-05

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing protein 1; ASAP1 is also called DDEF1 (Development and Differentiation Enhancing Factor 1), AMAP1, centaurin beta-4, or PAG2. an Arf GTPase activating protein (GAP) with activity towards Arf1 and Arf5 but not Arf6. However, it has been shown to bind GTP-Arf6 stably without GAP activity. It has been implicated in cell growth, migration, and survival, as well as in tumor invasion and malignancy. It binds paxillin and cortactin, two components of invadopodia which are essential for tumor invasiveness. It also binds focal adhesion kinase (FAK) and the SH2/SH3 adaptor CrkL. ASAP1 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212898 [Multi-domain]  Cd Length: 57  Bit Score: 42.30  E-value: 5.93e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQ---KGWFPKSYVKLI 969
Cdd:cd11965      1 RVKTIYDCQADNDDELTFVEGEVIIVTGEEDQeWWIGHIEGQperKGVFPVSFVHIL 57
SH3_SH3RF_1 cd11786
First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model ...
1079-1134 6.01e-05

First Src Homology 3 domain of SH3 domain containing ring finger proteins; This model represents the first SH3 domain of SH3RF1 (or POSH), SH3RF2 (or POSHER), SH3RF3 (POSH2), and similar domains. Members of this family are scaffold proteins that function as E3 ubiquitin-protein ligases. They all contain an N-terminal RING finger domain and multiple SH3 domains; SH3RF1 and SH3RF3 have four SH3 domains while SH3RF2 has three. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3RF2 acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212720 [Multi-domain]  Cd Length: 53  Bit Score: 42.35  E-value: 6.01e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQArgkkrQIGWFPANYVK 1134
Cdd:cd11786      2 AKALYNYEGKEPGDLSFKKGDIILLRKRIDENWYHGECNG-----KQGFFPASYVQ 52
SH3_GRAP_N cd11948
N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor ...
747-800 6.03e-05

N-terminal Src homology 3 domain of GRB2-related adaptor protein; GRAP is a GRB-2 like adaptor protein that is highly expressed in lymphoid tissues. It acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. It has been identified as a regulator of TGFbeta signaling in diabetic kidney tubules and may have a role in the pathogenesis of the disease. GRAP contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The N-terminal SH3 domain of the related protein GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212881 [Multi-domain]  Cd Length: 54  Bit Score: 42.11  E-value: 6.03e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKgewvdeSQTGEPGWLGGELKGKTGWFPANY 800
Cdd:cd11948      4 ALYSFQATESDELPFQKGDILKIL------NMEDDQNWYKAELQGREGYIPKNY 51
Myosin_tail_1 pfam01576
Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and ...
327-708 6.15e-05

Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and four light chains it is a fundamental contractile protein found in all eukaryote cell types. This family consists of the coiled-coil myosin heavy chain tail region. The coiled-coil is composed of the tail from two molecules of myosin. These can then assemble into the macromolecular thick filament. The coiled-coil region provides the structural backbone the thick filament.


Pssm-ID: 460256 [Multi-domain]  Cd Length: 1081  Bit Score: 47.86  E-value: 6.15e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  327 QRLPEEPVLEDEQQQLEKKLPVTFEDKkRENFERGNLELEKRRQALLEQQRKEQERLAQLEraeQERKERERQEQERKRQ 406
Cdd:pfam01576   36 QQLCEEKNALQEQLQAETELCAEAEEM-RARLAARKQELEEILHELESRLEEEEERSQQLQ---NEKKKMQQHIQDLEEQ 111
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  407 LELEK------QLEKQRELERQREEERRKEIERREAAKRELERQ----------RQLEWERNRRQELLNQRNKEQEDIVV 470
Cdd:pfam01576  112 LDEEEaarqklQLEKVTTEAKIKKLEEDILLLEDQNSKLSKERKlleeriseftSNLAEEEEKAKSLSKLKNKHEAMISD 191
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  471 LKAKKKTLEFELEALNDKKHQLEGKLQDIR---CRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQI 547
Cdd:pfam01576  192 LEERLKKEEKGRQELEKAKRKLEGESTDLQeqiAELQAQIAELRAQLAKKEEELQAALARLEEETAQKNNALKKIRELEA 271
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  548 LNDQLKQ-VQQNSLHRDSLVTLKRAL-EAKELARQHLRDQLDE--VEKETRSKL-QEIDIFNNQLKELREIHNKQ-QLQK 621
Cdd:pfam01576  272 QISELQEdLESERAARNKAEKQRRDLgEELEALKTELEDTLDTtaAQQELRSKReQEVTELKKALEEETRSHEAQlQEMR 351
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  622 QKSMEA-----ERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRpRKLH---EEEKLKREESvkkkdg 693
Cdd:pfam01576  352 QKHTQAleeltEQLEQAKRNKANLEKAKQALESENAELQAELRTLQQAKQDSEHKR-KKLEgqlQELQARLSES------ 424
                          410
                   ....*....|....*
gi 1034627469  694 eEKGKQEAQDKLGRL 708
Cdd:pfam01576  425 -ERQRAELAEKLSKL 438
SH3_Irsp53_BAIAP2L cd11779
Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific ...
1080-1134 6.21e-05

Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2 (BAIAP2)-Like proteins, and similar proteins; Proteins in this family include IRSp53, BAIAP2L1, BAIAP2L2, and similar proteins. They all contain an Inverse-Bin/Amphiphysin/Rvs (I-BAR) or IMD domain in addition to the SH3 domain. IRSp53, also known as BAIAP2, is a scaffolding protein that takes part in many signaling pathways including Cdc42-induced filopodia formation, Rac-mediated lamellipodia extension, and spine morphogenesis. IRSp53 exists as multiple splicing variants that differ mainly at the C-termini. BAIAP2L1, also called IRTKS (Insulin Receptor Tyrosine Kinase Substrate), serves as a substrate for the insulin receptor and binds the small GTPase Rac. It plays a role in regulating the actin cytoskeleton and colocalizes with F-actin, cortactin, VASP, and vinculin. IRSp53 and IRTKS also mediate the recruitment of effector proteins Tir and EspFu, which regulate host cell actin reorganization, to bacterial attachment sites. BAIAP2L2 co-localizes with clathrin plaques but its function has not been determined. The SH3 domains of IRSp53 and IRTKS have been shown to bind the proline-rich C-terminus of EspFu. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212713 [Multi-domain]  Cd Length: 57  Bit Score: 42.31  E-value: 6.21e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLI-LIRKKNPGGWWEGELQaRGKKRqiGWFPANYVK 1134
Cdd:cd11779      4 KALYPHAAGGETQLSFEEGDVItLLGPEPRDGWHYGENE-RSGRR--GWFPIAYTE 56
SH3_MYO15 cd11884
Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to ...
932-966 6.21e-05

Src Homology 3 domain of Myosin XV; This subfamily is composed of proteins with similarity to Myosin XVa. Myosin XVa is an unconventional myosin that is critical for the normal growth of mechanosensory stereocilia of inner ear hair cells. Mutations in the myosin XVa gene are associated with nonsyndromic hearing loss. Myosin XVa contains a unique N-terminal extension followed by a motor domain, light chain-binding IQ motifs, and a tail consisting of a pair of MyTH4-FERM tandems separated by a SH3 domain, and a PDZ domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212817 [Multi-domain]  Cd Length: 56  Bit Score: 42.31  E-value: 6.21e-05
                           10        20        30
                   ....*....|....*....|....*....|....*....
gi 1034627469  932 LNFNKNDVITVL-EQQDM---WWFGEVQGQKGWFPKSYV 966
Cdd:cd11884     16 LSFHKGDVIKLLpKEGPLdpgWLFGTLDGRSGAFPKEYV 54
SH3_Tks5_2 cd12077
Second Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also ...
1166-1210 6.44e-05

Second Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also called SH3 and PX domain-containing protein 2A (SH3PXD2A) or Five SH (FISH), is a scaffolding protein and Src substrate that is localized in podosomes, which are electron-dense structures found in Src-transformed fibroblasts, osteoclasts, macrophages, and some invasive cancer cells. It binds and regulates some members of the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. It is required for podosome formation, degradation of the extracellular matrix, and cancer cell invasion. Tks5 contains an N-terminal Phox homology (PX) domain and five SH3 domains. This model characterizes the second SH3 domain of Tks5. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213010  Cd Length: 54  Bit Score: 42.33  E-value: 6.44e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*
gi 1034627469 1166 YTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd12077      9 YTSQGKDEIGFEKGVTVEVIQKNLEGWWYIRYLGKEGWAPASYLK 53
SH3_Sorbs2_3 cd11917
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), ...
1004-1056 6.45e-05

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212850 [Multi-domain]  Cd Length: 61  Bit Score: 42.29  E-value: 6.45e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1004 GEEFIAMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKA--GVFPSNYVR 1056
Cdd:cd11917      4 GEPFQALYNYMPRNEDELELREGDVIDVMEKcDDGWFVGTSRRTKffGTFPGNYVK 59
SH3_Eve1_5 cd11818
Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1009-1054 6.81e-05

Fifth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212752 [Multi-domain]  Cd Length: 50  Bit Score: 42.09  E-value: 6.81e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTVGDKAGVFPSNY 1054
Cdd:cd11818      4 ALYDFTGENEDELSFKAGDIITeLESIDEEWMSGELRGKSGIFPKNF 50
SH3_Eve1_2 cd11815
Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
1008-1056 7.10e-05

Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212749 [Multi-domain]  Cd Length: 52  Bit Score: 41.78  E-value: 7.10e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd11815      3 VVLHDFPAEHSDDLSLNSGEIVyLLEKIDTEWYRGKCKNTTGIFPANHVK 52
GBP_C cd16269
Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal ...
331-414 7.25e-05

Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal domain. Guanylate-binding proteins (GBPs) are synthesized after activation of the cell by interferons. The biochemical properties of GBPs are clearly different from those of Ras-like and heterotrimeric GTP-binding proteins. They bind guanine nucleotides with low affinity (micromolar range), are stable in their absence, and have a high turnover GTPase. In addition to binding GDP/GTP, they have the unique ability to bind GMP with equal affinity and hydrolyze GTP not only to GDP, but also to GMP. This C-terminal domain has been shown to mediate inhibition of endothelial cell proliferation by inflammatory cytokines.


Pssm-ID: 293879 [Multi-domain]  Cd Length: 291  Bit Score: 46.80  E-value: 7.25e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  331 EEPVLEDEQQQLEKKLpvtfEDKKReNFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELE 410
Cdd:cd16269    213 ERKLLEEQQRELEQKL----EDQER-SYEEHLRQLKEKMEEERENLLKEQERALESKLKEQEALLEEGFKEQAELLQEEI 287

                   ....
gi 1034627469  411 KQLE 414
Cdd:cd16269    288 RSLK 291
SH3_Sorbs_1 cd11781
First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar ...
1008-1055 7.28e-05

First Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the first SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212715 [Multi-domain]  Cd Length: 53  Bit Score: 41.94  E-value: 7.28e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11781      3 RALYPFKAQSAKELSLKKGDIIYIRRQiDKNWYEGEHNGRVGIFPASYV 51
SH3_SH3RF3_1 cd11928
First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
744-802 7.67e-05

First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212861  Cd Length: 54  Bit Score: 41.83  E-value: 7.67e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKGEwVDESqtgepgWLGGELKGKTGWFPANYAE 802
Cdd:cd11928      2 CGKALYSYEGKEPGDLKFNKGDIIILRRK-VDEN------WYHGELNGCHGFLPASYIQ 53
PRK02224 PRK02224
DNA double-strand break repair Rad50 ATPase;
335-613 7.67e-05

DNA double-strand break repair Rad50 ATPase;


Pssm-ID: 179385 [Multi-domain]  Cd Length: 880  Bit Score: 47.73  E-value: 7.67e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLpvtfedkkrenfERGN--LELEKRRQALLEQQRKEQERLAQlERAEQERKeRERQEQERKRQLELEKQ 412
Cdd:PRK02224   487 LEEEVEEVEERL------------ERAEdlVEAEDRIERLEERREDLEELIAE-RRETIEEK-RERAEELRERAAELEAE 552
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  413 LEKQRELerqreeerrkeierreAAKRELERQRQLEW--ERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKH 490
Cdd:PRK02224   553 AEEKREA----------------AAEAEEEAEEAREEvaELNSKLAELKERIESLERIRTLLAAIADAEDEIERLREKRE 616
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  491 QLEGKLQDIRCRLTTQRQEIestnksRELriaeithlqqqlqesqqmlgrlipEKQILNDQLKQVQQNslhrdslvtLKR 570
Cdd:PRK02224   617 ALAELNDERRERLAEKRERK------REL------------------------EAEFDEARIEEARED---------KER 657
                          250       260       270       280
                   ....*....|....*....|....*....|....*....|....
gi 1034627469  571 ALEAKElarqHLRDQLDEVEkETRSKLQ-EIDIFNNQLKELREI 613
Cdd:PRK02224   658 AEEYLE----QVEEKLDELR-EERDDLQaEIGAVENELEELEEL 696
SH3_CAS cd11844
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding proteins; CAS proteins ...
918-968 7.76e-05

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding proteins; CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes including migration, chemotaxis, apoptosis, differentiation, and progenitor cell function. They mediate the signaling of integrins at focal adhesions where they localize, and thus, regulate cell invasion and survival. Over-expression of these proteins is implicated in poor prognosis, increased metastasis, and resistance to chemotherapeutics in many cancers such as breast, lung, melanoma, and glioblastoma. CAS proteins have also been linked to the pathogenesis of inflammatory disorders, Alzheimer's, Parkinson's, and developmental defects. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. Vertebrates contain four CAS proteins: BCAR1 (or p130Cas), NEDD9 (or HEF1), EFS (or SIN), and CASS4 (or HEPL). The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212778  Cd Length: 56  Bit Score: 41.95  E-value: 7.76e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQ----DMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11844      2 ARALYDNVAESPDELAFRRGDILTVLEQNtaglEGWWLCSLRGRQGIAPGNRLKL 56
SH3_CIN85_2 cd12055
Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
746-800 8.23e-05

Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CIN85. SH3B has been shown to bind Cbl proline-rich peptides and ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212988 [Multi-domain]  Cd Length: 53  Bit Score: 41.91  E-value: 8.23e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwVDEsqtgepGWLGGELKGKTGWFPANY 800
Cdd:cd12055      3 QVAFSYLPQNEDELELKVGDIIEVVGE-VEE------GWWEGVLNGKTGMFPSNF 50
SH3_MPP1-like cd12035
Src Homology 3 domain of Membrane Protein, Palmitoylated 1 (or MAGUK p55 subfamily member 1) ...
1160-1206 8.37e-05

Src Homology 3 domain of Membrane Protein, Palmitoylated 1 (or MAGUK p55 subfamily member 1)-like proteins; This subfamily includes MPP1, CASK (Calcium/calmodulin-dependent Serine protein Kinase), Caenorhabditis elegans lin-2, and similar proteins. MPP1 and CASK are scaffolding proteins from the MAGUK (membrane-associated guanylate kinase) protein family, which is characterized by the presence of a core of three domains: PDZ, SH3, and guanylate kinase (GuK). In addition, they also have the Hook (Protein 4.1 Binding) motif in between the SH3 and GuK domains. The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. CASK and lin-2 also contain an N-terminal calmodulin-dependent kinase (CaMK)-like domain and two L27 domains. MPP1 is ubiquitously-expressed and plays roles in regulating neutrophil polarity, cell shape, hair cell development, and neural development and patterning of the retina. CASK is highly expressed in the mammalian nervous system and plays roles in synaptic protein targeting, neural development, and gene expression regulation. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212968  Cd Length: 62  Bit Score: 42.03  E-value: 8.37e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1160 VIGMYDYTAQNDD-------ELAFNKGQIINVLNKEDPDWWKGEV----NGQVGLFPS 1206
Cdd:cd12035      2 VRAQFDYDPSKDDlipcqqaGIAFKTGDILQIISKDDHNWWQARKpgasKEPAGLIPS 59
SH3_ephexin1 cd11939
Src homology 3 domain of the Rho guanine nucleotide exchange factor, ephexin-1 (also called ...
917-967 8.55e-05

Src homology 3 domain of the Rho guanine nucleotide exchange factor, ephexin-1 (also called NGEF or ARHGEF27); Ephexin-1, also called NGEF (neuronal GEF) or ARHGEF27, activates RhoA, Tac1, and Cdc42 by exchanging bound GDP for free GTP. It is expressed mainly in the brain in a region associated with movement control. It regulates the stability of postsynaptic acetylcholine receptor (AChR) clusters and thus, plays a critical role in the maturation and neurotransmission of neuromuscular junctions. Ephexin-1 directly interacts with the ephrin receptor EphA4 and their coexpression enhances the ability of ephexin-1 to activate RhoA. It is required for normal axon growth and EphA-induced growth cone collapse. Ephexin-1 contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212872 [Multi-domain]  Cd Length: 55  Bit Score: 41.85  E-value: 8.55e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEV--QGQKGWFPKSYVK 967
Cdd:cd11939      1 QVQCVHPYVSQEPDELSLELADVLNILDKtDDGWIFGERlhDQERGWFPSSVVE 54
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
328-525 8.66e-05

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 47.76  E-value: 8.66e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  328 RLPEEPVLEDEQQQLEKKLPVTFEDKK--RENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERE---RQEQE 402
Cdd:TIGR02169  824 LTLEKEYLEKEIQELQEQRIDLKEQIKsiEKEIENLNGKKEELEEELEELEAALRDLESRLGDLKKERDELEaqlRELER 903
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  403 RKRQLELEKQLEKQrelerqreeerrkeIERREAAKRELERQRQLEWERNRRQELlnQRNKEQEDIVVLKAKKKTLEFEL 482
Cdd:TIGR02169  904 KIEELEAQIEKKRK--------------RLSELKAKLEALEEELSEIEDPKGEDE--EIPEEELSLEDVQAELQRVEEEI 967
                          170       180       190       200       210
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  483 EALND------------KKHQLEgkLQDIRCRLTTQRQEIestnksrELRIAEIT 525
Cdd:TIGR02169  968 RALEPvnmlaiqeyeevLKRLDE--LKEKRAKLEEERKAI-------LERIEEYE 1013
SH3_p67phox_C cd12046
C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, ...
1080-1134 8.70e-05

C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, also called Neutrophil cytosol factor 2 (NCF-2), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox plays a regulatory role and contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. It binds, via its C-terminal SH3 domain, to a proline-rich region of p47phox and upon activation, this complex assembles with flavocytochrome b558, the Nox2-p22phox heterodimer. Concurrently, RacGTP translocates to the membrane and interacts with the TPR domain of p67phox, which leads to the activation of NADPH oxidase. The PB1 domain of p67phox binds to its partner PB1 domain in p40phox, and this facilitates the assembly of p47phox-p67phox at the membrane. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212979 [Multi-domain]  Cd Length: 53  Bit Score: 41.71  E-value: 8.70e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1080 QVIA--SYTATGPEQLTLAPGQLILIRKKNPGGWWEGelQARGKkrqIGWFPANYVK 1134
Cdd:cd12046      1 QVVAlfSYEASQPEDLEFQKGDVILVLSKVNEDWLEG--QCKGK---IGIFPSAFVE 52
SH3_ASAP1 cd11965
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
1010-1057 8.87e-05

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing protein 1; ASAP1 is also called DDEF1 (Development and Differentiation Enhancing Factor 1), AMAP1, centaurin beta-4, or PAG2. an Arf GTPase activating protein (GAP) with activity towards Arf1 and Arf5 but not Arf6. However, it has been shown to bind GTP-Arf6 stably without GAP activity. It has been implicated in cell growth, migration, and survival, as well as in tumor invasion and malignancy. It binds paxillin and cortactin, two components of invadopodia which are essential for tumor invasiveness. It also binds focal adhesion kinase (FAK) and the SH2/SH3 adaptor CrkL. ASAP1 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212898 [Multi-domain]  Cd Length: 57  Bit Score: 41.92  E-value: 8.87e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1010 MYTYESSEQGDLTFQQGDVILVT-KKDGDWWTGTVG---DKAGVFPSNYVRL 1057
Cdd:cd11965      5 IYDCQADNDDELTFVEGEVIIVTgEEDQEWWIGHIEgqpERKGVFPVSFVHI 56
SH3_Bzz1_1 cd11912
First Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP ...
1163-1211 9.08e-05

First Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP/Las17-interacting protein involved in endocytosis and trafficking to the vacuole. It physically interacts with type I myosins and functions in the early steps of endocytosis. Together with other proteins, it induces membrane scission in yeast. Bzz1 contains an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), a central coiled-coil, and two C-terminal SH3 domains. This model represents the first C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212845 [Multi-domain]  Cd Length: 55  Bit Score: 41.83  E-value: 9.08e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWW----KGevNGQVGLFPSNYVKL 1211
Cdd:cd11912      5 LYDYTASGDDEVSISEGEEVTVLEPDDGSGWtkvrNG--SGEEGLVPTSYIEI 55
SH3_GRB2_C cd11949
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
744-800 9.17e-05

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The C-terminal SH3 domain of GRB2 binds to Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, as well as to the proline-rich C-terminus of FGRF2. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212882 [Multi-domain]  Cd Length: 53  Bit Score: 41.75  E-value: 9.17e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVkgewVDESqtgEPGWLGGELKGKTGWFPANY 800
Cdd:cd11949      1 YVQALFDFDPQEDGELGFRRGDFIEV----MDNS---DPNWWKGACHGQTGMFPRNY 50
SH3_DOCK_AB cd11872
Src Homology 3 domain of Class A and B Dedicator of Cytokinesis proteins; DOCK proteins are ...
1081-1135 9.21e-05

Src Homology 3 domain of Class A and B Dedicator of Cytokinesis proteins; DOCK proteins are atypical guanine nucleotide exchange factors (GEFs) that lack the conventional Dbl homology (DH) domain. They are divided into four classes (A-D) based on sequence similarity and domain architecture: class A includes Dock1, 2 and 5; class B includes Dock3 and 4; class C includes Dock6, 7, and 8; and class D includes Dock9, 10 and 11. All DOCKs contain two homology domains: the DHR-1 (Dock homology region-1), also called CZH1 (CED-5, Dock180, and MBC-zizimin homology 1), and DHR-2 (also called CZH2 or Docker). The DHR-1 domain binds phosphatidylinositol-3,4,5-triphosphate while DHR-2 contains the catalytic activity for Rac and/or Cdc42. This subfamily includes only Class A and B DOCKs, which also contain an SH3 domain at the N-terminal region and a PxxP motif at the C-terminus. Class A/B DOCKs are mostly specific GEFs for Rac, except Dock4 which activates the Ras family GTPase Rap1, probably indirectly through interaction with Rap regulatory proteins. The SH3 domain of class A/B DOCKs have been shown to bind Elmo, a scaffold protein that promotes GEF activity of DOCKs by releasing DHR-2 autoinhibition by the intramolecular SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212805 [Multi-domain]  Cd Length: 56  Bit Score: 41.80  E-value: 9.21e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNpGGWWEGELQarGKKRQIGWFPANYVKL 1135
Cdd:cd11872      4 AIYNFQGDGEHQLSLQVGDTVQILEEC-EGWYRGFSL--RNKSLKGIFPKSYVHI 55
SH3_CD2AP-like_2 cd11874
Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This ...
917-968 9.35e-05

Second Src Homology 3 domain (SH3B) of CD2-associated protein and similar proteins; This subfamily is composed of the second SH3 domain (SH3B) of CD2AP, CIN85 (Cbl-interacting protein of 85 kDa), and similar domains. CD2AP and CIN85 are adaptor proteins that bind to protein partners and assemble complexes that have been implicated in T cell activation, kidney function, and apoptosis of neuronal cells. They also associate with endocytic proteins, actin cytoskeleton components, and other adaptor proteins involved in receptor tyrosine kinase (RTK) signaling. CD2AP and the main isoform of CIN85 contain three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP and CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. SH3B of both proteins have been shown to bind to Cbl. In the case of CD2AP, its SH3B binds to Cbl at a site distinct from the c-Cbl/SH3A binding site. The CIN85 SH3B also binds ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212807 [Multi-domain]  Cd Length: 53  Bit Score: 41.55  E-value: 9.35e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11874      1 RCKVLFSYTPQNEDELELKVGDTIEVLGEvEEGWWEGKLNGKVGVFPSNFVKE 53
SH3_GRAF cd12064
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase; GRAF, also ...
746-802 9.40e-05

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase; GRAF, also called Rho GTPase activating protein 26 (ARHGAP26), Oligophrenin-1-like (OPHN1L) or GRAF1, is a GAP with activity towards RhoA and Cdc42 and is only weakly active towards Rac1. It influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase (FAK), which is a critical component of integrin signaling. It is essential for the major clathrin-independent endocytic pathway mediated by pleiomorphic membranes. GRAF contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. The SH3 domain of GRAF binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212997  Cd Length: 56  Bit Score: 41.64  E-value: 9.40e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVmvkgEWVDESQtgEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd12064      4 KALYACKAEHDSELSFTAGTVF----DNVHPSQ--EPGWLEGTLNGKTGLIPENYVE 54
SH3_Lck cd12005
Src homology 3 domain of Lck Protein Tyrosine Kinase; Lck is a member of the Src subfamily of ...
1008-1055 9.42e-05

Src homology 3 domain of Lck Protein Tyrosine Kinase; Lck is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Lck is expressed in T-cells and natural killer cells. It plays a critical role in T-cell maturation, activation, and T-cell receptor (TCR) signaling. Lck phosphorylates ITAM (immunoreceptor tyr activation motif) sequences on several subunits of TCRs, leading to the activation of different second messenger cascades. Phosphorylated ITAMs serve as binding sites for other signaling factor such as Syk and ZAP-70, leading to their activation and propagation of downstream events. In addition, Lck regulates drug-induced apoptosis by interfering with the mitochondrial death pathway. The apototic role of Lck is independent of its primary function in T-cell signaling. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212938 [Multi-domain]  Cd Length: 54  Bit Score: 41.73  E-value: 9.42e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTG---TVGDKaGVFPSNYV 1055
Cdd:cd12005      3 VALYSYEPSHDGDLGFEKGEKLRILEQSGEWWKAqslTTGQE-GFIPFNFV 52
CCDC34 pfam13904
Coiled-coil domain-containing protein 3; This family is found in eukaryotes; it has several ...
366-491 9.52e-05

Coiled-coil domain-containing protein 3; This family is found in eukaryotes; it has several conserved tryptophan residues. The function is not known.


Pssm-ID: 464032 [Multi-domain]  Cd Length: 221  Bit Score: 45.47  E-value: 9.52e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  366 EKRRQALLEQQRKEQERLAQLERAEQ-ERKERERQEQ--ERKRQLELEKQLEKQRELERQREEERRKEIERREAAkrELE 442
Cdd:pfam13904   63 AKQRQRQKELQAQKEEREKEEQEAELrKRLAKEKYQEwlQRKARQQTKKREESHKQKAAESASKSLAKPERKVSQ--EEA 140
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  443 RQRQLEWERNRRQELLNQRNKEQEDivvlKAKKKTLEFELEALNDKKHQ 491
Cdd:pfam13904  141 KEVLQEWERKKLEQQQRKREEEQRE----QLKKEEEEQERKQLAEKAWQ 185
SH3_CSK cd11769
Src Homology 3 domain of C-terminal Src kinase; CSK is a cytoplasmic (or nonreceptor) tyr ...
1004-1055 9.69e-05

Src Homology 3 domain of C-terminal Src kinase; CSK is a cytoplasmic (or nonreceptor) tyr kinase containing the Src homology domains, SH3 and SH2, N-terminal to the catalytic tyr kinase domain. They negatively regulate the activity of Src kinases that are anchored to the plasma membrane. To inhibit Src kinases, CSK is translocated to the membrane via binding to specific transmembrane proteins, G-proteins, or adaptor proteins near the membrane. CSK catalyzes the tyr phosphorylation of the regulatory C-terminal tail of Src kinases, resulting in their inactivation. It is expressed in a wide variety of tissues and plays a role, as a regulator of Src, in cell proliferation, survival, and differentiation, and consequently, in cancer development and progression. In addition, CSK also shows Src-independent functions. It is a critical component in G-protein signaling, and plays a role in cytoskeletal reorganization and cell migration. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212703 [Multi-domain]  Cd Length: 57  Bit Score: 41.52  E-value: 9.69e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1004 GEEFIAMYTYESSEQGDLTFQQGDVILVTK--KDGDWWTG-TVGDKAGVFPSNYV 1055
Cdd:cd11769      1 GTECIAKYNFNGASEEDLPFKKGDILTIVAvtKDPNWYKAkNKDGREGMIPANYV 55
SH3_CD2AP_3 cd12056
Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ...
1077-1135 9.87e-05

Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CD2AP. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212989 [Multi-domain]  Cd Length: 57  Bit Score: 41.73  E-value: 9.87e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1077 EIAQVIASYTATGPEQLTLAPGQLILIRKKNPG--GWWEGELQarGKKrqiGWFPANYVKL 1135
Cdd:cd12056      2 EYCKALFHYEGTNEDELDFKEGEIILIISKDTGepGWWKGELN--GKE---GVFPDNFVSQ 57
SH3_Vinexin_2 cd11924
Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 ...
1006-1057 9.93e-05

Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212857  Cd Length: 56  Bit Score: 41.87  E-value: 9.93e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVG--DKAGVFPSNYVRL 1057
Cdd:cd11924      2 EAVAQYTFKGDLEVELSFRKGEHIcLIRKVNENWYEGRITgtGRQGIFPASYVQV 56
SH3_NEDD9 cd12002
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, ...
1163-1211 9.94e-05

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, Neural precursor cell Expressed, Developmentally Down-regulated 9; NEDD9 is also called human enhancer of filamentation 1 (HEF1) or CAS-L (Crk-associated substrate in lymphocyte). It was first described as a gene predominantly expressed in early embryonic brain, and was also isolated from a screen of human proteins that regulate filamentous budding in yeast, and as a tyrosine phosphorylated protein in lymphocytes. It promotes metastasis in different solid tumors. NEDD9 localizes in focal adhesions and associates with FAK and Abl kinase. It also interacts with SMAD3 and the proteasomal machinery which allows its rapid turnover; these interactions are not shared by other CAS proteins. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212935  Cd Length: 57  Bit Score: 41.89  E-value: 9.94e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKED---PDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd12002      5 LYDNVPECAEELAFRKGDILTVIEQNTgglEGWWLCSLHGRQGIAPGNRLKL 56
SH3_EFS cd12003
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, ...
918-972 9.94e-05

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, Embryonal Fyn-associated Substrate; EFS is also called HEFS, CASS3 (Cas scaffolding protein family member 3) or SIN (Src-interacting protein). It was identified based on interactions with the Src kinases, Fyn and Yes. It plays a role in thymocyte development and acts as a negative regulator of T cell proliferation. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212936  Cd Length: 62  Bit Score: 41.80  E-value: 9.94e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM----WWFGEVQGQKGWFPKSYVKLI-SGP 972
Cdd:cd12003      3 AKALYDNAAESPEELSFRRGDVLMVLKREHGslpgWWLCSLHGQQGIAPANRLRLLpTAP 62
PRK03918 PRK03918
DNA double-strand break repair ATPase Rad50;
353-683 1.01e-04

DNA double-strand break repair ATPase Rad50;


Pssm-ID: 235175 [Multi-domain]  Cd Length: 880  Bit Score: 47.37  E-value: 1.01e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  353 KKRENFERGNLELEKRRQALLEQQRKEQERLAQLERA-EQERKERERQEQERKRQLELEKQLEKqRELERQREEERRKei 431
Cdd:PRK03918   186 KRTENIEELIKEKEKELEEVLREINEISSELPELREElEKLEKEVKELEELKEEIEELEKELES-LEGSKRKLEEKIR-- 262
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  432 erreaakrELERQRQlewERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQdircRLTTQRQEIE 511
Cdd:PRK03918   263 --------ELEERIE---ELKKEIEELEEKVKELKELKEKAEEYIKLSEFYEEYLDELREIEKRLS----RLEEEINGIE 327
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  512 STNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQL-KQVQQNSLHRD----SLVTLKRALEAKELARQHLRDQL 586
Cdd:PRK03918   328 ERIKELEEKEERLEELKKKLKELEKRLEELEERHELYEEAKaKKEELERLKKRltglTPEKLEKELEELEKAKEEIEEEI 407
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  587 DEVEKETRSKLQEIDIFNNQLKELREIHNKQQL--------QKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDK 658
Cdd:PRK03918   408 SKITARIGELKKEIKELKKAIEELKKAKGKCPVcgrelteeHRKELLEEYTAELKRIEKELKEIEEKERKLRKELRELEK 487
                          330       340       350
                   ....*....|....*....|....*....|
gi 1034627469  659 QwlehVQQEDEHQRPRKLHE-----EEKLK 683
Cdd:PRK03918   488 V----LKKESELIKLKELAEqlkelEEKLK 513
SH3_Sorbs_3 cd11780
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) ...
919-967 1.01e-04

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing (Sorbs) proteins and similar domains; This family, also called the vinexin family, is composed predominantly of adaptor proteins containing one sorbin homology (SoHo) and three SH3 domains. Members include the third SH3 domains of Sorbs1 (or ponsin), Sorbs2 (or ArgBP2), Vinexin (or Sorbs3), and similar domains. They are involved in the regulation of cytoskeletal organization, cell adhesion, and growth factor signaling. Members of this family bind multiple partners including signaling molecules like c-Abl, c-Arg, Sos, and c-Cbl, as well as cytoskeletal molecules such as vinculin and afadin. They may have overlapping functions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212714 [Multi-domain]  Cd Length: 55  Bit Score: 41.52  E-value: 1.01e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF---GEVQGQKGWFPKSYVK 967
Cdd:cd11780      3 RALYSYTPQNEDELELREGDIVYVMEKCDDGWFvgtSERTGLFGTFPGNYVA 54
SH3_Eps8 cd11764
Src Homology 3 domain of Epidermal growth factor receptor kinase substrate 8 and similar ...
1163-1207 1.03e-04

Src Homology 3 domain of Epidermal growth factor receptor kinase substrate 8 and similar proteins; This group is composed of Eps8 and Eps8-like proteins including Eps8-like 1-3, among others. These proteins contain N-terminal Phosphotyrosine-binding (PTB), central SH3, and C-terminal effector domains. Eps8 binds either Abi1 (also called E3b1) or Rab5 GTPase activating protein RN-tre through its SH3 domain. With Abi1 and Sos1, it becomes part of a trimeric complex that is required to activate Rac. Together with RN-tre, it inhibits the internalization of EGFR. The SH3 domains of Eps8 and similar proteins recognize peptides containing a PxxDY motif, instead of the classical PxxP motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212698 [Multi-domain]  Cd Length: 54  Bit Score: 41.48  E-value: 1.03e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDpDWWKGE-VNGQVGLFPSN 1207
Cdd:cd11764      5 LYDFTARNSKELSVLKGEYLEVLDDSR-QWWKVRnSRGQVGYVPHN 49
CCDC34 pfam13904
Coiled-coil domain-containing protein 3; This family is found in eukaryotes; it has several ...
550-686 1.03e-04

Coiled-coil domain-containing protein 3; This family is found in eukaryotes; it has several conserved tryptophan residues. The function is not known.


Pssm-ID: 464032 [Multi-domain]  Cd Length: 221  Bit Score: 45.47  E-value: 1.03e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  550 DQLKQVQQNSLHRDSLVT------LKRALEAKELARQHLRDQLDEVEKETRSKLqeidifnNQLKELREIHNKQQLQKQK 623
Cdd:pfam13904   39 TYARKLEGLKLERQPLEAyenwlaAKQRQRQKELQAQKEEREKEEQEAELRKRL-------AKEKYQEWLQRKARQQTKK 111
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  624 SMEaeRLKQKEQERKIIELEKQ-KEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKREE 686
Cdd:pfam13904  112 REE--SHKQKAAESASKSLAKPeRKVSQEEAKEVLQEWERKKLEQQQRKREEEQREQLKKEEEE 173
SH3_Intersectin2_4 cd11994
Fourth Src homology 3 domain (or SH3D) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
918-969 1.04e-04

Fourth Src homology 3 domain (or SH3D) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fourth SH3 domain (or SH3D) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212927  Cd Length: 59  Bit Score: 41.84  E-value: 1.04e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQG-----QKGWFPKSYVKLI 969
Cdd:cd11994      2 AQVTTAYVASGVEQLSLSPGQLILILKKNSSgWWLGELQArgkkrQKGWFPASHVKLL 59
SH3_Tks5_2 cd12077
Second Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also ...
923-967 1.08e-04

Second Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also called SH3 and PX domain-containing protein 2A (SH3PXD2A) or Five SH (FISH), is a scaffolding protein and Src substrate that is localized in podosomes, which are electron-dense structures found in Src-transformed fibroblasts, osteoclasts, macrophages, and some invasive cancer cells. It binds and regulates some members of the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. It is required for podosome formation, degradation of the extracellular matrix, and cancer cell invasion. Tks5 contains an N-terminal Phox homology (PX) domain and five SH3 domains. This model characterizes the second SH3 domain of Tks5. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213010  Cd Length: 54  Bit Score: 41.56  E-value: 1.08e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469  923 PWRAKKDNHLNFNKNDVITVLEQQ-DMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd12077      8 PYTSQGKDEIGFEKGVTVEVIQKNlEGWWYIRYLGKEGWAPASYLK 53
SH3_ARHGEF5_19 cd11940
Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ...
1080-1135 1.09e-04

Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ARHGEF5, also called ephexin-3 or TIM (Transforming immortalized mammary oncogene), is a potent activator of RhoA and it plays roles in regulating cell shape, adhesion, and migration. It binds to the SH3 domain of Src and is involved in regulating Src-induced podosome formation. ARHGEF19, also called ephexin-2 or WGEF (weak-similarity GEF), is highly expressed in the intestine, liver, heart and kidney. It activates RhoA, Cdc42, and Rac 1, and has been shown to activate RhoA in the Wnt-PCP (planar cell polarity) pathway. It is involved in the regulation of cell polarity and cytoskeletal reorganization. ARHGEF5 and ARHGEF19 contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212873  Cd Length: 55  Bit Score: 41.70  E-value: 1.09e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGelqARGKKRQIGWFPANYVKL 1135
Cdd:cd11940      3 QCIRSYKAQENDELTLEKADIIMVRQQSSDGWLEG---VRLSDGERGWFPQSHVEE 55
SH3_CIN85_1 cd12052
First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
922-967 1.10e-04

First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CIN85; SH3A binds to internal proline-rich motifs within the proline-rich region. This intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. SH3A has also been shown to bind ubiquitin and to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic end of the cell adhesion protein CD2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212985 [Multi-domain]  Cd Length: 53  Bit Score: 41.42  E-value: 1.10e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469  922 YPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVK 967
Cdd:cd12052      6 FDYKAQHEDELTITVGDIITKIKKDDGgWWEGEIKGRRGLFPDNFVR 52
SH3_STAM2 cd11963
Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST ...
746-800 1.13e-04

Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST (Epidermal growth factor receptor-associated protein with SH3 and TAM domain) or Hbp (Hrs binding protein), is part of the endosomal sorting complex required for transport (ESCRT-0). It plays a role in sorting mono-ubiquinated endosomal cargo for trafficking to the lysosome for degradation. It is also involved in the regulation of exocytosis. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212896 [Multi-domain]  Cd Length: 57  Bit Score: 41.54  E-value: 1.13e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVkgewVDESQTgepGWLGGELKGKTGWFPANY 800
Cdd:cd11963      5 RALYDFEAVEDNELTFKHGEIIIV----LDDSDA---NWWKGENHRGVGLFPSNF 52
SH3_Stac3_1 cd11986
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 ...
744-800 1.17e-04

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 (Stac3); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212919 [Multi-domain]  Cd Length: 53  Bit Score: 41.43  E-value: 1.17e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVkgewVDESQTgepGWLGGELKGKTGWFPANY 800
Cdd:cd11986      1 YFVALYRFKALEKDDLDFHPGERITV----IDDSNE---EWWRGKIGEKTGYFPMNF 50
SH3_Bzz1_2 cd11778
Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP ...
1009-1054 1.18e-04

Second Src Homology 3 domain of Bzz1 and similar domains; Bzz1 (or Bzz1p) is a WASP/Las17-interacting protein involved in endocytosis and trafficking to the vacuole. It physically interacts with type I myosins and functions in the early steps of endocytosis. Together with other proteins, it induces membrane scission in yeast. Bzz1 contains an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), a central coiled-coil, and two C-terminal SH3 domains. This model represents the second C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212712 [Multi-domain]  Cd Length: 51  Bit Score: 41.33  E-value: 1.18e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKD-GDWWT-GTVGDKAGVFPSNY 1054
Cdd:cd11778      4 ALYDYEAQGDDEISIRVGDRIAVIRGDdGSGWTyGEINGVKGLFPTSY 51
SH3_SNX18 cd11897
Src Homology 3 domain of Sorting nexin 18; SNX18 is localized to peripheral endosomal ...
1163-1211 1.18e-04

Src Homology 3 domain of Sorting nexin 18; SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. It binds FIP5 and is required for apical lumen formation. It may also play a role in axonal elongation. SNXs are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNX18 also contains BAR and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212830 [Multi-domain]  Cd Length: 55  Bit Score: 41.52  E-value: 1.18e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVN--GQVGLFPSNYVKL 1211
Cdd:cd11897      5 LYDFRSENPGEISLREHEVLSLCSEQDIEGWLEGVNsrGDRGLFPASYVEV 55
SH3_Abp1_fungi_C1 cd11962
First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor ...
1079-1135 1.19e-04

First C-terminal Src homology 3 domain of Fungal Actin-binding protein 1; Abp1 is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a central proline-rich region, and a C-terminal SH3 domain (many yeast Abp1 proteins contain two C-terminal SH3 domains). Yeast Abp1 also contains two acidic domains that bind directly to the Arp2/3 complex, which is required to initiate actin polymerization. The SH3 domain of yeast Abp1 binds and localizes the kinases, Ark1p and Prk1p, which facilitate actin patch disassembly following vesicle internalization. It also mediates the localization to the actin patch of the synaptojanin-like protein, Sjl2p, which plays a key role in endocytosis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212895 [Multi-domain]  Cd Length: 54  Bit Score: 41.32  E-value: 1.19e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGElqarGKKRQIGWFPANYVKL 1135
Cdd:cd11962      2 AVVLYDYEKDEDNEIELVEGEIVTNIEMVDEDWWMGT----NSKGESGLFPSNYVEL 54
TPH pfam13868
Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of ...
336-457 1.22e-04

Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of eukaryotic proteins. Trichoplein or mitostatin, was first defined as a meiosis-specific nuclear structural protein. It has since been linked with mitochondrial movement. It is associated with the mitochondrial outer membrane, and over-expression leads to reduction in mitochondrial motility whereas lack of it enhances mitochondrial movement. The activity appears to be mediated through binding the mitochondria to the actin intermediate filaments (IFs). The family is in the trichohyalin-plectin-homology domain.


Pssm-ID: 464007 [Multi-domain]  Cd Length: 341  Bit Score: 46.07  E-value: 1.22e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  336 EDEQQQLEKKLpvtfedKKRENFERGNLE--LEKRRQALLEQQRKEQERLAQLER-AEQERKERERQEQERKRQLELEKQ 412
Cdd:pfam13868  221 QKEREEAEKKA------RQRQELQQAREEqiELKERRLAEEAEREEEEFERMLRKqAEDEEIEQEEAEKRRMKRLEHRRE 294
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*
gi 1034627469  413 LEKQRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQEL 457
Cdd:pfam13868  295 LEKQIEEREEQRAAEREEELEEGERLREEEAERRERIEEERQKKL 339
SH3_Sorbs2_2 cd11923
Second Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
1159-1211 1.23e-04

Second Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212856 [Multi-domain]  Cd Length: 57  Bit Score: 41.44  E-value: 1.23e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNG--QVGLFPSNYVKL 1211
Cdd:cd11923      2 EAVAKYNFNADTNVELSLRKGDRVVLLKQVDQNWYEGKIPGtnRQGIFPVSYVEV 56
PRK12704 PRK12704
phosphodiesterase; Provisional
363-512 1.24e-04

phosphodiesterase; Provisional


Pssm-ID: 237177 [Multi-domain]  Cd Length: 520  Bit Score: 46.69  E-value: 1.24e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  363 LELEKRRQALLEQQRKEQE---RLAQLERAEQERKERERQEQE-RKRQLELEKQLekqrelerqreeerrkeierreaaK 438
Cdd:PRK12704    34 KEAEEEAKRILEEAKKEAEaikKEALLEAKEEIHKLRNEFEKElRERRNELQKLE------------------------K 89
                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  439 RELERQRQLEwernRRQELLNQRNKEqedivvLKAKKKTLEFELEALNDKKHQLEGKLQDircrlttQRQEIES 512
Cdd:PRK12704    90 RLLQKEENLD----RKLELLEKREEE------LEKKEKELEQKQQELEKKEEELEELIEE-------QLQELER 146
SH3_p47phox_1 cd12021
First or N-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also called ...
1080-1134 1.27e-04

First or N-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also called Neutrophil Cytosolic Factor 1; p47phox, or NCF1, is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox), which plays a key role in the ability of phagocytes to defend against bacterial infections. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p47phox is required for activation of NADH oxidase and plays a role in translocation. It contains an N-terminal Phox homology (PX) domain, tandem SH3 domains (N-SH3 and C-SH3), a polybasic/autoinhibitory region, and a C-terminal proline-rich region (PRR). This model characterizes the first SH3 domain (or N-SH3) of p47phox. In its inactive state, the tandem SH3 domains interact intramolecularly with the autoinhibitory region; upon activation, the tandem SH3 domains are exposed through a conformational change, resulting in their binding to the PRR of p22phox and the activation of NADPH oxidase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212954 [Multi-domain]  Cd Length: 53  Bit Score: 41.48  E-value: 1.27e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGkkrqiGWFPANYVK 1134
Cdd:cd12021      3 RAIADYEKSSKSEMALKTGDVVEVVEKSENGWWFCQLKAKR-----GWVPASYLE 52
SH3_Intersectin2_4 cd11994
Fourth Src homology 3 domain (or SH3D) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1166-1211 1.28e-04

Fourth Src homology 3 domain (or SH3D) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fourth SH3 domain (or SH3D) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212927  Cd Length: 59  Bit Score: 41.46  E-value: 1.28e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1166 YTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNG-----QVGLFPSNYVKL 1211
Cdd:cd11994      8 YVASGVEQLSLSPGQLILILKKNSSGWWLGELQArgkkrQKGWFPASHVKL 58
C2_PSD cd04039
C2 domain present in Phosphatidylserine decarboxylase (PSD); PSD is involved in the ...
1619-1697 1.31e-04

C2 domain present in Phosphatidylserine decarboxylase (PSD); PSD is involved in the biosynthesis of aminophospholipid by converting phosphatidylserine (PtdSer) to phosphatidylethanolamine (PtdEtn). There is a single C2 domain present and it is thought to confer PtdSer binding motif that is common to PKC and synaptotagmin. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176004 [Multi-domain]  Cd Length: 108  Bit Score: 43.01  E-value: 1.31e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1619 PYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEV-LCITVFERDQFSPDDFLGRTEIRVADIKKDQGSKGPVTK 1697
Cdd:cd04039     28 PFVIISFGRRVFRTSWRRHTLNPVFNERLAFEVYPHEKNFdIQFKVLDKDKFSFNDYVATGSLSVQELLNAAPQPDPETG 107
SH3_SNX9_like cd11763
Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox ...
1079-1133 1.37e-04

Src Homology 3 domain of Sorting Nexin 9 and similar proteins; Sorting nexins (SNXs) are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNXs differ from each other in their lipid-binding specificity, subcellular localization and specific function in the endocytic pathway. This subfamily consists of SH3 domain containing SNXs including SNX9, SNX18, SNX33, and similar proteins. SNX9 is localized to plasma membrane endocytic sites and acts primarily in clathrin-mediated endocytosis, while SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212697 [Multi-domain]  Cd Length: 55  Bit Score: 41.16  E-value: 1.37e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPG-GWWEGElQARGKkrqIGWFPANYV 1133
Cdd:cd11763      2 VRALYDFDSQPSGELSLRAGEVLTITRQDVGdGWLEGR-NSRGE---VGLFPSSYV 53
SH3_GRB2_N cd11946
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
1006-1058 1.38e-04

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. Its N-terminal SH3 domain binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212879 [Multi-domain]  Cd Length: 56  Bit Score: 41.16  E-value: 1.38e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDV--ILVTKKDGDWWTGTVGDKAGVFPSNYVRLK 1058
Cdd:cd11946      2 EAIAKYDFKATADDELSFKRGDIlkVLNEECDQNWYKAELNGKDGFIPKNYIEMK 56
C2_PKC_epsilon cd04014
C2 domain in Protein Kinase C (PKC) epsilon; A single C2 domain is found in PKC epsilon. The ...
1596-1716 1.42e-04

C2 domain in Protein Kinase C (PKC) epsilon; A single C2 domain is found in PKC epsilon. The PKC family of serine/threonine kinases regulates apoptosis, proliferation, migration, motility, chemo-resistance, and differentiation. There are 3 groups: group 1 (alpha, betaI, beta II, gamma) which require phospholipids and calcium, group 2 (delta, epsilon, theta, eta) which do not require calcium for activation, and group 3 (xi, iota/lambda) which are atypical and can be activated in the absence of diacylglycerol and calcium. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-II topology.


Pssm-ID: 175981 [Multi-domain]  Cd Length: 132  Bit Score: 43.42  E-value: 1.42e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCR-----SHGKSN-----PYCEVTMgSQCHI--TKTIQDTLNPKWNsncQFFIRDLEQ-EVLCIT 1662
Cdd:cd04014      4 GTLKIKICEAVDLKPTDwstrhAVPKKGsqlldPYVSIDV-DDTHIgkTSTKPKTNSPVWN---EEFTTEVHNgRNLELT 79
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1663 VFERDQFSPDDFLGRTEIRVADIKKDQGSKgpvtKCLLLHEVPTGEIVVRLDLQ 1716
Cdd:cd04014     80 VFHDAAIGPDDFVANCTISFEDLIQRGSGS----FDLWVDLEPQGKLHVKIELK 129
SH3_CD2AP_2 cd12054
Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ...
746-804 1.42e-04

Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CD2AP. SH3B binds to c-Cbl in a site (TPSSRPLR is the core binding motif) distinct from the c-Cbl/SH3A binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212987 [Multi-domain]  Cd Length: 55  Bit Score: 41.11  E-value: 1.42e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVmvkgewvDESQTGEPGWLGGELKGKTGWFPANYAEKI 804
Cdd:cd12054      4 KVLFEYVPQNEDELELKVGDII-------DINEEVEEGWWSGTLNGKSGLFPSNFVKEL 55
SH3_Abi2 cd11972
Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It ...
920-972 1.46e-04

Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It regulates actin cytoskeletal reorganization at adherens junctions and dendritic spines, which is important in cell morphogenesis, migration, and cognitive function. Mice deficient with Abi2 show defects in orientation and migration of lens fibers, neuronal migration, dendritic spine morphology, as well as deficits in learning and memory. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212905 [Multi-domain]  Cd Length: 61  Bit Score: 41.53  E-value: 1.46e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSYVKLISGP 972
Cdd:cd11972      7 AIYDYTKDKEDELSFQEGAIIYVIKKNDDGWYeGVMNGVTGLFPGNYVESIMHY 60
SH3_Nck1_2 cd11901
Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
1011-1055 1.49e-04

Second Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212834 [Multi-domain]  Cd Length: 55  Bit Score: 41.17  E-value: 1.49e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1011 YTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11901      8 FNYTAEREDELSLVKGTKVIVMEKCSDgWWRGSYNGQVGWFPSNYV 53
SH3_Brk cd11847
Src homology 3 domain of Brk (Breast tumor kinase) Protein Tyrosine Kinase (PTK), also called ...
1161-1209 1.50e-04

Src homology 3 domain of Brk (Breast tumor kinase) Protein Tyrosine Kinase (PTK), also called PTK6; Brk is a cytoplasmic (or non-receptor) PTK with limited homology to Src kinases. It has been found to be overexpressed in a majority of breast tumors. It plays roles in normal cell differentiation, proliferation, survival, migration, and cell cycle progression. Brk substrates include RNA-binding proteins (SLM-1/2, Sam68), transcription factors (STAT3/5), and signaling molecules (Akt, paxillin, IRS-4). Src kinases in general contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr; they are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation site. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212781 [Multi-domain]  Cd Length: 58  Bit Score: 41.39  E-value: 1.50e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDpDWW----KGEVNGQV--GLFPSNYV 1209
Cdd:cd11847      3 KALWDFKARGDEELSFQAGDQFRIAERSG-DWWtalkLDRAGGVVaqGFVPNNYL 56
SH3_Nephrocystin cd11770
Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain ...
920-968 1.51e-04

Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain involved in signaling pathways that regulate cell adhesion and cytoskeletal organization. It is a protein that in humans is associated with juvenile nephronophthisis, an inherited kidney disease characterized by renal fibrosis that lead to chronic renal failure in children. It is localized in cell-cell junctions in renal duct cells, and is known to interact with Ack1, an activated Cdc42-associated kinase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212704 [Multi-domain]  Cd Length: 54  Bit Score: 41.14  E-value: 1.51e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLE-QQDMWWFGE-VQGQKGWFPKSYVKL 968
Cdd:cd11770      4 ALSDFQAEQEGDLSFKKGEVLRIISkRADGWWLAEnSKGNRGLVPKTYLKV 54
SH3_Bem1p_1 cd11878
First Src Homology 3 domain of Bud emergence protein 1 and similar domains; Members of this ...
1164-1208 1.56e-04

First Src Homology 3 domain of Bud emergence protein 1 and similar domains; Members of this subfamily bear similarity to Saccharomyces cerevisiae Bem1p, containing two Src Homology 3 (SH3) domains at the N-terminus, a central PX domain, and a C-terminal PB1 domain. Bem1p is a scaffolding protein that is critical for proper Cdc42p activation during bud formation in yeast. During budding and mating, Bem1p migrates to the plasma membrane where it can serve as an adaptor for Cdc42p and some other proteins. Bem1p also functions as an effector of the G1 cyclin Cln3p and the cyclin-dependent kinase Cdc28p in promoting vacuolar fusion. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212811 [Multi-domain]  Cd Length: 54  Bit Score: 41.12  E-value: 1.56e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPD-WWKGE--VNGQVGLFPSNY 1208
Cdd:cd11878      6 YDYRAQTPGELSFSKGDFFHVIGEEDQGeWYEATnpVTGKRGLVPKSY 53
SH3_MPP7 cd12033
Src Homology 3 domain of Membrane Protein, Palmitoylated 7 (or MAGUK p55 subfamily member 7); ...
1160-1208 1.61e-04

Src Homology 3 domain of Membrane Protein, Palmitoylated 7 (or MAGUK p55 subfamily member 7); MPP7 is a scaffolding protein that binds to DLG1 and promotes tight junction formation and epithelial cell polarity. Mutations in the MPP7 gene may be associated with the pathogenesis of diabetes and extreme bone mineral density. It is one of seven vertebrate homologs of the Drosophila Stardust protein, which is required in establishing cell polarity, and it contains two L27 domains followed by the core of three domains characteristic of MAGUK (membrane-associated guanylate kinase) proteins: PDZ, SH3, and guanylate kinase (GuK). The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212966  Cd Length: 61  Bit Score: 41.16  E-value: 1.61e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1160 VIGMYDYTAQNDDE-------LAFNKGQIINVLNKEDPDWWK----GEVNGQVGLFPSNY 1208
Cdd:cd12033      2 IKALFDYNPNEDKAipckeagLSFKKGDILQIMSQDDATWWQakheGDANPRAGLIPSKH 61
SH3_OSTF1 cd11772
Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or ...
1084-1133 1.61e-04

Src Homology 3 domain of metazoan osteoclast stimulating factor 1; OSTF1, also named OSF or SH3P2, is a signaling protein containing SH3 and ankyrin-repeat domains. It acts through a Src-related pathway to enhance the formation of osteoclasts and bone resorption. It also acts as a negative regulator of cell motility. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212706 [Multi-domain]  Cd Length: 53  Bit Score: 41.13  E-value: 1.61e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1084 SYTATGPEQLTLAPGQLILIRKKNPGGWWEGELqaRGKKrqiGWFPANYV 1133
Cdd:cd11772      7 DYEAQHPDELSFEEGDLLYISDKSDPNWWKATC--GGKT---GLIPSNYV 51
SH3_DOCK_AB cd11872
Src Homology 3 domain of Class A and B Dedicator of Cytokinesis proteins; DOCK proteins are ...
1008-1058 1.61e-04

Src Homology 3 domain of Class A and B Dedicator of Cytokinesis proteins; DOCK proteins are atypical guanine nucleotide exchange factors (GEFs) that lack the conventional Dbl homology (DH) domain. They are divided into four classes (A-D) based on sequence similarity and domain architecture: class A includes Dock1, 2 and 5; class B includes Dock3 and 4; class C includes Dock6, 7, and 8; and class D includes Dock9, 10 and 11. All DOCKs contain two homology domains: the DHR-1 (Dock homology region-1), also called CZH1 (CED-5, Dock180, and MBC-zizimin homology 1), and DHR-2 (also called CZH2 or Docker). The DHR-1 domain binds phosphatidylinositol-3,4,5-triphosphate while DHR-2 contains the catalytic activity for Rac and/or Cdc42. This subfamily includes only Class A and B DOCKs, which also contain an SH3 domain at the N-terminal region and a PxxP motif at the C-terminus. Class A/B DOCKs are mostly specific GEFs for Rac, except Dock4 which activates the Ras family GTPase Rap1, probably indirectly through interaction with Rap regulatory proteins. The SH3 domain of class A/B DOCKs have been shown to bind Elmo, a scaffold protein that promotes GEF activity of DOCKs by releasing DHR-2 autoinhibition by the intramolecular SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212805 [Multi-domain]  Cd Length: 56  Bit Score: 41.03  E-value: 1.61e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTG-TVGDKA--GVFPSNYVRLK 1058
Cdd:cd11872      3 VAIYNFQGDGEHQLSLQVGDTVQILEECEGWYRGfSLRNKSlkGIFPKSYVHIK 56
SH3_Sorbs1_3 cd11916
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), ...
919-969 1.64e-04

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212849 [Multi-domain]  Cd Length: 59  Bit Score: 41.13  E-value: 1.64e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF---GEVQGQKGWFPKSYVKLI 969
Cdd:cd11916      5 QALYSYAPQNDDELELRDGDIVDVMEKCDDGWFvgtSRRTKQFGTFPGNYVKLL 58
SH3_GAS7 cd11829
Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the ...
1011-1055 1.65e-04

Src homology 3 domain of Growth Arrest Specific protein 7; GAS7 is mainly expressed in the brain and is required for neurite outgrowth. It may also play a role in the protection and migration of embryonic stem cells. Treatment-related acute myeloid leukemia (AML) has been reported resulting from mixed-lineage leukemia (MLL)-GAS7 translocations as a complication of primary cancer treatment. GAS7 contains an N-terminal SH3 domain, followed by a WW domain, and a central F-BAR domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212763 [Multi-domain]  Cd Length: 52  Bit Score: 40.96  E-value: 1.65e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1011 YTYESSEQGdLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11829      8 FTGEQHQQG-LSFEAGELIRVLQApDGGWWEGEKDGLRGWFPASYV 52
C2_Calpain cd04046
C2 domain present in Calpain proteins; A single C2 domain is found in calpains (EC 3.4.22.52, ...
1600-1680 1.67e-04

C2 domain present in Calpain proteins; A single C2 domain is found in calpains (EC 3.4.22.52, EC 3.4.22.53), calcium-dependent, non-lysosomal cysteine proteases. Caplains are classified as belonging to Clan CA by MEROPS and include six families: C1, C2, C10, C12, C28, and C47. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 176011 [Multi-domain]  Cd Length: 126  Bit Score: 43.04  E-value: 1.67e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1600 VNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLcITVFERDQFSpDDFLGRTE 1679
Cdd:cd04046      7 VHVHSAEGLSKQDSGGGADPYVIIKCEGESVRSPVQKDTLSPEFDTQAIFYRKKPRSPIK-IQVWNSNLLC-DEFLGQAT 84

                   .
gi 1034627469 1680 I 1680
Cdd:cd04046     85 L 85
SH3_Src_like cd11845
Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members ...
745-800 1.69e-04

Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members include Src, Lck, Hck, Blk, Lyn, Fgr, Fyn, Yrk, Yes, and Brk. Src (or c-Src) proteins are cytoplasmic (or non-receptor) PTKs which are anchored to the plasma membrane. They contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation sites. Src proteins are involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. They were identified as the first proto-oncogene products, and they regulate cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Src kinases are overexpressed in a variety of human cancers, making them attractive targets for therapy. They are also implicated in acute inflammatory responses and osteoclast function. Src, Fyn, Yes, and Yrk are widely expressed, while Blk, Lck, Hck, Fgr, Lyn, and Brk show a limited expression pattern. This subfamily also includes Drosophila Src42A, Src oncogene at 42A (also known as Dsrc41) which accumulates at sites of cell-cell or cell-matrix adhesion, and participates in Drosphila development and wound healing. It has been shown to promote tube elongation in the tracheal system, is essential for proper cell-cell matching during dorsal closure, and regulates cell-cell contacts in developing Drosophila eyes. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212779 [Multi-domain]  Cd Length: 52  Bit Score: 41.03  E-value: 1.69e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMV----KGEWvdesqtgepgWLGGELK-GKTGWFPANY 800
Cdd:cd11845      2 YVALYDYEARTDDDLSFKKGDRLQIlddsDGDW----------WLARHLStGKEGYIPSNY 52
SH3_p67phox_C cd12046
C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, ...
747-802 1.70e-04

C-terminal (or second) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, also called Neutrophil cytosol factor 2 (NCF-2), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox plays a regulatory role and contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. It binds, via its C-terminal SH3 domain, to a proline-rich region of p47phox and upon activation, this complex assembles with flavocytochrome b558, the Nox2-p22phox heterodimer. Concurrently, RacGTP translocates to the membrane and interacts with the TPR domain of p67phox, which leads to the activation of NADPH oxidase. The PB1 domain of p67phox binds to its partner PB1 domain in p40phox, and this facilitates the assembly of p47phox-p67phox at the membrane. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212979 [Multi-domain]  Cd Length: 53  Bit Score: 40.94  E-value: 1.70e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKGEWVDEsqtgepgWLGGELKGKTGWFPANYAE 802
Cdd:cd12046      4 ALFSYEASQPEDLEFQKGDVILVLSKVNED-------WLEGQCKGKIGIFPSAFVE 52
SH3_SH3RF2_3 cd11784
Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
745-800 1.71e-04

Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212718  Cd Length: 55  Bit Score: 40.92  E-value: 1.71e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVKGEWVDesqtgepGWLGGE--LKGKTGWFPANY 800
Cdd:cd11784      2 CVALHSYSAHRPEELELQKGEGVRVLGKFQE-------GWLRGLslVTGRVGIFPSNY 52
sbcc TIGR00618
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
332-645 1.73e-04

exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 129705 [Multi-domain]  Cd Length: 1042  Bit Score: 46.50  E-value: 1.73e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  332 EPVLEDEQQQLEKKLPVTFEDKKRENFERGNLE-LEKRRQAL---LEQQRKEQERLAQL--ERAEQERKERERQeQERKR 405
Cdd:TIGR00618  541 ETSEEDVYHQLTSERKQRASLKEQMQEIQQSFSiLTQCDNRSkedIPNLQNITVRLQDLteKLSEAEDMLACEQ-HALLR 619
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  406 QLELEKQLEKQRELERQREEERRKEIERREAAKRELERQRQLE-WERNRRQEL------LNQRNKEQEDIVVLKAKKKTL 478
Cdd:TIGR00618  620 KLQPEQDLQDVRLHLQQCSQELALKLTALHALQLTLTQERVREhALSIRVLPKellasrQLALQKMQSEKEQLTYWKEML 699
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  479 EFELEALNDkKHQLEGKL----QDIRCRLTTQRQEI--------ESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQ 546
Cdd:TIGR00618  700 AQCQTLLRE-LETHIEEYdrefNEIENASSSLGSDLaaredalnQSLKELMHQARTVLKARTEAHFNNNEEVTAALQTGA 778
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  547 ILNDQLKQVQQNSLHRDSLVTLKRALEAKelARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELreiHNKQ-QLQKQKSM 625
Cdd:TIGR00618  779 ELSHLAAEIQFFNRLREEDTHLLKTLEAE--IGQEIPSDEDILNLQCETLVQEEEQFLSRLEEK---SATLgEITHQLLK 853
                          330       340
                   ....*....|....*....|....
gi 1034627469  626 EAERLKQKEQ----ERKIIELEKQ 645
Cdd:TIGR00618  854 YEECSKQLAQltqeQAKIIQLSDK 877
SH3_SH3RF2_3 cd11784
Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
1081-1133 1.73e-04

Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212718  Cd Length: 55  Bit Score: 40.92  E-value: 1.73e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKkrqIGWFPANYV 1133
Cdd:cd11784      4 ALHSYSAHRPEELELQKGEGVRVLGKFQEGWLRGLSLVTGR---VGIFPSNYV 53
SH3_PRMT2 cd11806
Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, ...
920-966 1.74e-04

Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, belongs to the arginine methyltransferase protein family. It functions as a coactivator to both estrogen receptor alpha (ER-alpha) and androgen receptor (AR), presumably through arginine methylation. The ER-alpha transcription factor is involved in cell proliferation, differentiation, morphogenesis, and apoptosis, and is also implicated in the development and progression of breast cancer. PRMT2 and its variants are upregulated in breast cancer cells and may be involved in modulating the ER-alpha signaling pathway during formation of breast cancer. PRMT2 also plays a role in regulating the function of E2F transcription factors, which are critical cell cycle regulators, by binding to the retinoblastoma gene product (RB). It contains an N-terminal SH3 domain and an AdoMet binding domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212740 [Multi-domain]  Cd Length: 53  Bit Score: 40.84  E-value: 1.74e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11806      4 AIADFVATDDSQLSFESGDKLLVLRKpSVDWWWAEHNGCCGYIPASHL 51
C2A_Synaptotagmin-7 cd08386
C2A domain first repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking ...
1598-1686 1.79e-04

C2A domain first repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 7, a member of class 2 synaptotagmins, is located in presynaptic plasma membranes in neurons, dense-core vesicles in endocrine cells, and lysosomes in fibroblasts. It has been shown to play a role in regulation of Ca2+-dependent lysosomal exocytosis in fibroblasts and may also function as a vesicular Ca2+-sensor. It is distinguished from the other synaptotagmins by having over 12 splice forms. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176032 [Multi-domain]  Cd Length: 125  Bit Score: 43.09  E-value: 1.79e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1598 LMVNVVEGIELKPCRSHGKSNPYCEVTM---GSQCHITKTIQDTLNPKWNSNCQF--F-IRDLEQEVLCITVFERDQFSP 1671
Cdd:cd08386     18 LTLKILKAVELPAKDFSGTSDPFVKIYLlpdKKHKLETKVKRKNLNPHWNETFLFegFpYEKLQQRVLYLQVLDYDRFSR 97
                           90
                   ....*....|....*
gi 1034627469 1672 DDFLGRTEIRVADIK 1686
Cdd:cd08386     98 NDPIGEVSLPLNKVD 112
Activator_LAG-3 pfam11498
Transcriptional activator LAG-3; The C.elegans Notch pathway, involved in the control of ...
606-717 1.80e-04

Transcriptional activator LAG-3; The C.elegans Notch pathway, involved in the control of growth, differentiation and patterning in animal development, relies on either of the receptors GLP-1 or LIN-12. Both these receptors promote signalling by the recruitment of LAG-3 to target promoters, where it then acts as a transcriptional activator. LAG-3 works as a ternary complex together with the DNA binding protein, LAG-1. Its N-terminal region adopts an elongated kinked helix that is required for complex assembly.


Pssm-ID: 151935 [Multi-domain]  Cd Length: 476  Bit Score: 46.11  E-value: 1.80e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  606 QLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQE--RDKQWLEHVQQEDE-----------HQR 672
Cdd:pfam11498  321 HIAQLAQQQNKMRLLQQQEMEMQRIEQQRQQQIMHQHQQQQQQEHQQQQMllQQQQQMHQLQQHHQmngggqfatqaHQH 400
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*
gi 1034627469  673 PRKLHEEEKLKREESVKKKDGEEKGKQEAQdklgrlfHQHQEPAK 717
Cdd:pfam11498  401 AAYLQQMQHMRLQEQIQHQQQQAQHHQQAQ-------QQHQQPAQ 438
SH3_PEX13_eumet cd11864
Src Homology 3 domain of eumetazoan Peroxisomal biogenesis factor 13; PEX13 is a peroxin and ...
746-800 1.87e-04

Src Homology 3 domain of eumetazoan Peroxisomal biogenesis factor 13; PEX13 is a peroxin and is required for protein import into the peroxisomal matrix and membrane. It is an integral membrane protein that is essential for the localization of PEX14 and the import of proteins containing the peroxisome matrix targeting signals, PTS1 and PTS2. Mutations of the PEX13 gene in humans lead to a wide range of peroxisome biogenesis disorders (PBDs), the most severe of which is known as Zellweger syndrome (ZS), a severe multisystem disorder characterized by hypotonia, psychomotor retardation, and neuronal migration defects. PEX13 contains two transmembrane regions and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212798  Cd Length: 58  Bit Score: 41.08  E-value: 1.87e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwvdESQTGEPGWLGGELKG-KTGWFPANY 800
Cdd:cd11864      3 RAEYDFVAESEDELSFRAGDKLRLAPK---ELQPRVRGWLLATVDGqKIGLVPANY 55
SH3_Shank1 cd11982
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also ...
1082-1133 1.90e-04

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 1; Shank1, also called SSTRIP (Somatostatin receptor-interacting protein), is a brain-specific protein that plays a role in the construction of postsynaptic density (PSD) and the maturation of dendritic spines. Mice deficient in Shank1 show altered PSD composition, thinner PSDs, smaller dendritic spines, and weaker basal synaptic transmission, although synaptic plasticity is normal. They show increased anxiety and impaired fear memory, but also show better spatial learning. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212915 [Multi-domain]  Cd Length: 52  Bit Score: 40.77  E-value: 1.90e-04
                           10        20        30        40        50
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gi 1034627469 1082 IASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARgkkrqIGWFPANYV 1133
Cdd:cd11982      6 VKPYQSQAEGEISLSKGEKIKVLSVGEGGFWEGQVKGR-----VGWFPSDCV 52
SH3_GRB2_N cd11946
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical ...
747-802 1.93e-04

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2; GRB2 is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. It is ubiquitously expressed in all tissues throughout development and is important in cell cycle progression, motility, morphogenesis, and angiogenesis. In lymphocytes, GRB2 is associated with antigen receptor signaling components. GRB2 contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. Its N-terminal SH3 domain binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212879 [Multi-domain]  Cd Length: 56  Bit Score: 40.78  E-value: 1.93e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKGEWVDESqtgepgWLGGELKGKTGWFPANYAE 802
Cdd:cd11946      5 AKYDFKATADDELSFKRGDILKVLNEECDQN------WYKAELNGKDGFIPKNYIE 54
SH3_Nbp2-like cd11865
Src Homology 3 domain of Saccharomyces cerevisiae Nap1-binding protein 2 and similar fungal ...
1159-1211 1.94e-04

Src Homology 3 domain of Saccharomyces cerevisiae Nap1-binding protein 2 and similar fungal proteins; This subfamily includes Saccharomyces cerevisiae Nbp2 (Nucleosome assembly protein 1 (Nap1)-binding protein 2), Schizosaccharomyces pombe Skb5, and similar proteins. Nbp2 interacts with Nap1, which is essential for maintaining proper nucleosome structures in transcription and replication. It is also the binding partner of the yeast type II protein phosphatase Ptc1p and serves as a scaffolding protein that brings seven kinases in close contact to Ptc1p. Nbp2 plays a role many cell processes including organelle inheritance, mating hormone response, cell wall stress, mitotic cell growth at elevated temperatures, and high osmolarity. Skb5 interacts with the p21-activated kinase (PAK) homolog Shk1, which is critical for fission yeast cell viability. Skb5 activates Shk1 and plays a role in regulating cell morphology and growth under hypertonic conditions. Nbp2 and Skb5 contain an SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212799  Cd Length: 55  Bit Score: 40.96  E-value: 1.94e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWW--KGEVNGQVGLFPSNYVKL 1211
Cdd:cd11865      1 RAVALYDFEPEHDNELGFAEGQILFILYKHGQGWLiaEDESGGKTGLVPEEFVSY 55
SH3_Sorbs1_1 cd11919
First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; ...
746-804 1.97e-04

First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212852 [Multi-domain]  Cd Length: 55  Bit Score: 40.72  E-value: 1.97e-04
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gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwVDESqtgepgWLGGELKGKTGWFPANYAEKI 804
Cdd:cd11919      4 RAKFDFKAQTLKELPLQKGDIVYIYKQ-IDQN------WYEGEHHGRVGIFPRSYIELL 55
SH3_srGAP cd11809
Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating ...
917-968 2.00e-04

Src homology 3 domain of Slit-Robo GTPase Activating Proteins; Slit-Robo GTPase Activating Proteins (srGAPs) are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. Vertebrates contain three isoforms of srGAPs (srGAP1-3), all of which are expressed during embryonic and early development in the nervous system but with different localization and timing. A fourth member has also been reported (srGAP4, also called ARHGAP4). srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212743 [Multi-domain]  Cd Length: 53  Bit Score: 40.85  E-value: 2.00e-04
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gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11809      1 EATAQFDYTGRSERELSFKKGDSLTLYRQvSDDWWRGQLNGQDGLVPHKYITL 53
SH3_MPP5 cd12036
Src Homology 3 domain of Membrane Protein, Palmitoylated 5 (or MAGUK p55 subfamily member 5); ...
1164-1206 2.09e-04

Src Homology 3 domain of Membrane Protein, Palmitoylated 5 (or MAGUK p55 subfamily member 5); MPP5, also called PALS1 (Protein associated with Lin7) or Nagie oko protein in zebrafish or Stardust in Drosophila, is a scaffolding protein which associates with Crumbs homolog 1 (CRB1), CRB2, or CRB3 through its PDZ domain and with PALS1-associated tight junction protein (PATJ) or multi-PDZ domain protein 1 (MUPP1) through its L27 domain. The resulting tri-protein complexes are core proteins of the Crumb complex, which localizes at tight junctions or subapical regions, and is involved in the maintenance of apical-basal polarity in epithelial cells and the morphogenesis and function of photoreceptor cells. MPP5 is critical for the proper stratification of the retina and is also expressed in T lymphocytes where it is important for TCR-mediated activation of NFkB. Drosophila Stardust exists in several isoforms, some of which show opposing functions in photoreceptor cells, which suggests that the relative ratio of different Crumbs complexes regulates photoreceptor homeostasis. MPP5 contains two L27 domains followed by the core of three domains characteristic of MAGUK (membrane-associated guanylate kinase) proteins: PDZ, SH3, and guanylate kinase (GuK). In addition, it also contains the Hook (Protein 4.1 Binding) motif in between the SH3 and GuK domains. The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212969  Cd Length: 63  Bit Score: 40.86  E-value: 2.09e-04
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gi 1034627469 1164 YDYTAQnDDE--------LAFNKGQIINVLNKEDPDWWK----GEVNGQ--VGLFPS 1206
Cdd:cd12036      6 FDYDPE-DDPyipcrelgLSFQKGDILHVISQEDPNWWQayreGEEDNQslAGLIPS 61
SH3_Sorbs2_1 cd11920
First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
746-804 2.10e-04

First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212853 [Multi-domain]  Cd Length: 55  Bit Score: 40.76  E-value: 2.10e-04
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gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAEKI 804
Cdd:cd11920      4 RAVYDFKAQTSKELSFKKGDTVYI-------LRKIDQNWYEGEHHGRVGIFPISYVEKL 55
SH3_ASEF cd11973
Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor; ASEF, also called ...
1009-1058 2.12e-04

Src homology 3 domain of APC-Stimulated guanine nucleotide Exchange Factor; ASEF, also called ARHGEF4, exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli). GEFs activate small GTPases by exchanging bound GDP for free GTP. ASEF can activate Rac1 or Cdc42. Truncated ASEF, which is found in colorectal cancers, is constitutively active and has been shown to promote angiogenesis and cancer cell migration. ASEF contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212906 [Multi-domain]  Cd Length: 73  Bit Score: 41.16  E-value: 2.12e-04
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYVRLK 1058
Cdd:cd11973     22 ALWDHVTMDDQELGFKAGDVIeVMDATNKEWWWGRVLDSEGWFPASFVRLR 72
SH3_Myosin-I_fungi cd11858
Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent ...
1085-1135 2.13e-04

Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Saccharomyces cerevisiae has two myosins-I, Myo3 and Myo5, which are involved in endocytosis and the polarization of the actin cytoskeleton. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212792 [Multi-domain]  Cd Length: 55  Bit Score: 40.83  E-value: 2.13e-04
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gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPGGWWegeLQARGKKRQIGWFPANYVKL 1135
Cdd:cd11858      8 FAGSVANELSLKKDDIVYIVQKEDNGWW---LAKKLDESKEGWVPAAYLEE 55
SH3_SLAP2 cd12011
Src homology 3 domain of Src-Like Adaptor Protein 2; SLAP2 plays a role in c-Cbl-dependent ...
1007-1055 2.14e-04

Src homology 3 domain of Src-Like Adaptor Protein 2; SLAP2 plays a role in c-Cbl-dependent regulation of CSF1R, a tyrosine kinase important for myeloid cell growth and differentiation. It has been shown to interact with CSF1R, c-Cbl, LAT, CD247, and Zap70. SLAPs are adaptor proteins with limited similarity to Src family tyrosine kinases. They contain an N-terminal SH3 domain followed by an SH2 domain, and a unique C-terminal sequence. They function in regulating the signaling, ubiquitination, and trafficking of T-cell receptor (TCR) and B-cell receptor (BCR) components. The SH3 domain of SLAP forms a complex with v-Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212944  Cd Length: 55  Bit Score: 40.50  E-value: 2.14e-04
                           10        20        30        40        50
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gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKKDGDWWT--GTVGDKAGVFPSNYV 1055
Cdd:cd12011      2 AVALCNFPSGGPTELSIRMGEQLTILSEDGDWWKvsSAVTGRECYIPSNYV 52
SH3_NEDD9 cd12002
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, ...
918-969 2.14e-04

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, Neural precursor cell Expressed, Developmentally Down-regulated 9; NEDD9 is also called human enhancer of filamentation 1 (HEF1) or CAS-L (Crk-associated substrate in lymphocyte). It was first described as a gene predominantly expressed in early embryonic brain, and was also isolated from a screen of human proteins that regulate filamentous budding in yeast, and as a tyrosine phosphorylated protein in lymphocytes. It promotes metastasis in different solid tumors. NEDD9 localizes in focal adhesions and associates with FAK and Abl kinase. It also interacts with SMAD3 and the proteasomal machinery which allows its rapid turnover; these interactions are not shared by other CAS proteins. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212935  Cd Length: 57  Bit Score: 40.74  E-value: 2.14e-04
                           10        20        30        40        50
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gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQ----DMWWFGEVQGQKGWFPKSYVKLI 969
Cdd:cd12002      2 ARALYDNVPECAEELAFRKGDILTVIEQNtgglEGWWLCSLHGRQGIAPGNRLKLL 57
SH3_Pex13p_fungal cd11771
Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the ...
1009-1055 2.19e-04

Src Homology 3 domain of fungal peroxisomal membrane protein Pex13p; Pex13p, located in the peroxisomal membrane, contains two transmembrane regions and a C-terminal SH3 domain. It binds to the peroxisomal targeting type I (PTS1) receptor Pex5p and the docking factor Pex14p through its SH3 domain. It is essential for both PTS1 and PTS2 protein import pathways into the peroxisomal matrix. Pex13p binds Pex14p, which contains a PxxP motif, in a classical fashion to the proline-rich ligand binding site of its SH3 domain. It binds the WxxxF/Y motif of Pex5p in a novel site that does not compete with Pex14p binding. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212705 [Multi-domain]  Cd Length: 60  Bit Score: 40.72  E-value: 2.19e-04
                           10        20        30        40        50
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gi 1034627469 1009 AMYTYESSEQG-DLTFQQGDVILVTKK------DGDWWTGTVGD-KAGVFPSNYV 1055
Cdd:cd11771      4 ALYDFTPENPEmELSLKKGDIVAVLSKtdplgrDSEWWKGRTRDgRIGWFPSNYV 58
SH3_SH3RF2_2 cd11932
Second Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
1157-1209 2.23e-04

Second Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the second SH3 domain, located C-terminal of the first SH3 domain at the N-terminal half, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212865  Cd Length: 57  Bit Score: 40.59  E-value: 2.23e-04
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gi 1034627469 1157 VCQVIGMYDY----TAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11932      1 LCRALYNFDLkeknREESKDCLKFQKDDIITVISRVDENWAEGKLGDQVGIFPILFV 57
SH3_Sorbs2_1 cd11920
First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
1009-1055 2.27e-04

First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212853 [Multi-domain]  Cd Length: 55  Bit Score: 40.76  E-value: 2.27e-04
                           10        20        30        40
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11920      5 AVYDFKAQTSKELSFKKGDTVYILRKiDQNWYEGEHHGRVGIFPISYV 52
SH3_ARHGEF9 cd11975
Src homology 3 domain of the Rho guanine nucleotide exchange factor ARHGEF9; ARHGEF9, also ...
1001-1057 2.28e-04

Src homology 3 domain of the Rho guanine nucleotide exchange factor ARHGEF9; ARHGEF9, also called PEM2 or collybistin, selectively activates Cdc42 by exchanging bound GDP for free GTP. It is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. Mutations in the ARHGEF9 gene cause X-linked mental retardation with associated features like seizures, hyper-anxiety, aggressive behavior, and sensory hyperarousal. ARHGEF9 contains a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212908  Cd Length: 62  Bit Score: 40.85  E-value: 2.28e-04
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gi 1034627469 1001 VVSGEefiAMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11975      4 IVSAE---AVWDHVTMANRELAFKAGDVIkVLDASNKDWWWGQIDDEEGWFPASFVRL 58
SH3_Nebulette_C cd11935
C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a ...
1009-1057 2.32e-04

C-terminal Src Homology 3 domain of Nebulette and LIM-nebulette (or Lasp2); Nebulette is a cardiac-specific protein that localizes to the Z-disc. It interacts with tropomyosin and is important in stabilizing actin thin filaments in cardiac muscles. Polymorphisms in the nebulette gene are associated with dilated cardiomyopathy, with some mutations resulting in severe heart failure. Nebulette is a 107kD protein that contains an N-terminal acidic region, multiple nebulin repeats, and a C-terminal SH3 domain. LIM-nebulette, also called Lasp2 (LIM and SH3 domain protein 2), is an alternatively spliced variant of nebulette. Although it shares a gene with nebulette, Lasp2 is not transcribed from a muscle-specific promoter, giving rise to its multiple tissue expression pattern with highest amounts in the brain. It can crosslink actin filaments and it affects cell spreading. Lasp2 is a 34kD protein containing an N-terminal LIM domain, three nebulin repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212868 [Multi-domain]  Cd Length: 58  Bit Score: 40.76  E-value: 2.32e-04
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gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVIL-VTKKDGDWWTGTV--GDKAGVFPSNYVRL 1057
Cdd:cd11935      5 AMYDYSAQDEDEVSFRDGDYIVnVQPIDEGWMYGTVqrTGRTGMLPANYIEF 56
SH3_AHI-1 cd11812
Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called ...
1085-1133 2.40e-04

Src Homology 3 domain of Abelson helper integration site-1 (AHI-1); AHI-1, also called Jouberin, is expressed in high levels in the brain, gonad tissues, and skeletal muscle. It is an adaptor protein that interacts with the small GTPase Rab8a and regulates it distribution and function, affecting cilium formation and vesicle transport. Mutations in the AHI-1 gene can cause Joubert syndrome, a disorder characterized by brainstem malformations, cerebellar aplasia/hypoplasia, and retinal dystrophy. AHI-1 variation is also associated with susceptibility to schizophrenia and type 2 diabetes mellitus progression. AHI-1 contains WD40 and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212746 [Multi-domain]  Cd Length: 52  Bit Score: 40.57  E-value: 2.40e-04
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gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPGGWWEGELqarGKKRQiGWFPANYV 1133
Cdd:cd11812      8 YTANRSDELTIHRGDIIRVLYKDNDNWWFGSL---VNGQQ-GYFPANYV 52
EnvC COG4942
Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, ...
335-517 2.47e-04

Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 443969 [Multi-domain]  Cd Length: 377  Bit Score: 45.53  E-value: 2.47e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLPVTFEDKKRENFERGNLE-----LEKRRQALLEQQRKEQERLAQLERAEQE-RKERERQEQERKRQL- 407
Cdd:COG4942     32 LQQEIAELEKELAALKKEEKALLKQLAALErriaaLARRIRALEQELAALEAELAELEKEIAElRAELEAQKEELAELLr 111
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  408 --------------------------------------ELEKQLEKQRELERQREEERRKEIERREAAKRELERQRQ-LE 448
Cdd:COG4942    112 alyrlgrqpplalllspedfldavrrlqylkylaparrEQAEELRADLAELAALRAELEAERAELEALLAELEEERAaLE 191
                          170       180       190       200       210       220
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  449 WERNRRQELLNQrnkeqedivvLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSR 517
Cdd:COG4942    192 ALKAERQKLLAR----------LEKELAELAAELAELQQEAEELEALIARLEAEAAAAAERTPAAGFAA 250
SH3_Tec cd11905
Src Homology 3 domain of Tec (Tyrosine kinase expressed in hepatocellular carcinoma); Tec is a ...
1077-1133 2.49e-04

Src Homology 3 domain of Tec (Tyrosine kinase expressed in hepatocellular carcinoma); Tec is a cytoplasmic (or nonreceptor) tyr kinase containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. It also contains an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation, and the Tec homology (TH) domain, which contains proline-rich and zinc-binding regions. It is more widely-expressed than other Tec subfamily kinases. Tec is found in endothelial cells, both B- and T-cells, and a variety of myeloid cells including mast cells, erythroid cells, platelets, macrophages and neutrophils. Tec is a key component of T-cell receptor (TCR) signaling, and is important in TCR-stimulated proliferation, IL-2 production and phospholipase C-gamma1 activation. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212838 [Multi-domain]  Cd Length: 56  Bit Score: 40.57  E-value: 2.49e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1077 EIAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWegelQARGKKRQIGWFPANYV 1133
Cdd:cd11905      1 EIVVAMYDFQPTEPHDLRLETGEEYVILEKNDVHWW----KARDKYGKEGYIPSNYV 53
SH3_GRB2_like_N cd11804
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
746-800 2.49e-04

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The N-terminal SH3 domain of GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212738 [Multi-domain]  Cd Length: 52  Bit Score: 40.42  E-value: 2.49e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEWVDesqtgePGWLGGELKGKTGWFPANY 800
Cdd:cd11804      3 VAKHDFKATAEDELSFKKGSILKVLNMEDD------PNWYKAELDGKEGLIPKNY 51
C2_putative_Elicitor-responsive_gene cd04049
C2 domain present in the putative elicitor-responsive gene; In plants elicitor-responsive ...
1615-1685 2.57e-04

C2 domain present in the putative elicitor-responsive gene; In plants elicitor-responsive proteins are triggered in response to specific elicitor molecules such as glycolproteins, peptides, carbohydrates and lipids. A host of defensive responses are also triggered resulting in localized cell death. Antimicrobial secondary metabolites, such as phytoalexins, or defense-related proteins, including pathogenesis-related (PR) proteins are also produced. There is a single C2 domain present here. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members have a type-II topology.


Pssm-ID: 176014 [Multi-domain]  Cd Length: 124  Bit Score: 42.32  E-value: 2.57e-04
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1615 GKSNPYCEVTMGSQCHITKTIQDT-LNPKWNSNCQFFIRDLEQEV---LCITVFERDQFSPDDFLGRTEIRVADI 1685
Cdd:cd04049     20 GKIDPYVIIQCRTQERKSKVAKGDgRNPEWNEKFKFTVEYPGWGGdtkLILRIMDKDNFSDDDFIGEATIHLKGL 94
SH3_Irsp53 cd11915
Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53; IRSp53 is also known ...
917-969 2.64e-04

Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53; IRSp53 is also known as BAIAP2 (Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2). It is a scaffolding protein that takes part in many signaling pathways including Cdc42-induced filopodia formation, Rac-mediated lamellipodia extension, and spine morphogenesis. IRSp53 exists as multiple splicing variants that differ mainly at the C-termini. One variant (T-form) is expressed exclusively in human breast cancer cells. The gene encoding IRSp53 is a putative susceptibility gene for Gilles de la Tourette syndrome. IRSp53 can also mediate the recruitment of effector proteins Tir and EspFu, which regulate host cell actin reorganization, to bacterial attachment sites. It contains an N-terminal IMD, a CRIB (Cdc42 and Rac interactive binding motif), an SH3 domain, and a WASP homology 2 (WH2) actin-binding motif at the C-terminus. The SH3 domain of IRSp53 has been shown to bind the proline-rich C-terminus of EspFu. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212848  Cd Length: 59  Bit Score: 40.77  E-value: 2.64e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  917 QAQALYPwRAKKDNH--LNFNKNDVITVL--EQQDMWWFGEVQGQK--GWFPKSYVKLI 969
Cdd:cd11915      2 RVQAIFS-HAAGDNStlLSFKEGDYITLLvpEARDGWHYGECEKTKmrGWFPFSYTRVL 59
EnvC COG4942
Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, ...
337-596 2.65e-04

Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 443969 [Multi-domain]  Cd Length: 377  Bit Score: 45.14  E-value: 2.65e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  337 DEQQQLEKKLpvtfedkkrenfERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQL-ELEKQLEK 415
Cdd:COG4942     20 DAAAEAEAEL------------EQLQQEIAELEKELAALKKEEKALLKQLAALERRIAALARRIRALEQELaALEAELAE 87
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  416 qreLERQreeerrkeierREAAKRELERQRQLEWERNRRQellnQRNKEQEDIVVLKAKKKTLEFE-----LEALNDKKH 490
Cdd:COG4942     88 ---LEKE-----------IAELRAELEAQKEELAELLRAL----YRLGRQPPLALLLSPEDFLDAVrrlqyLKYLAPARR 149
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  491 QLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEIthlqqqlqesQQMLGRLIPEKQILNDQLKQVQQNslhrdsLVTLKR 570
Cdd:COG4942    150 EQAEELRADLAELAALRAELEAERAELEALLAEL----------EEERAALEALKAERQKLLARLEKE------LAELAA 213
                          250       260
                   ....*....|....*....|....*.
gi 1034627469  571 ALEAKELARQHLRDQLDEVEKETRSK 596
Cdd:COG4942    214 ELAELQQEAEELEALIARLEAEAAAA 239
SH3_VAV2_2 cd11977
C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and ...
1008-1062 2.68e-04

C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and functions as a guanine nucleotide exchange factor (GEF) for RhoA, RhoB and RhoG and also activates Rac1 and Cdc42. It is implicated in many cellular and physiological functions including blood pressure control, eye development, neurite outgrowth and branching, EGFR endocytosis and degradation, and cell cluster morphology, among others. It has been reported to associate with Nek3. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212910 [Multi-domain]  Cd Length: 58  Bit Score: 40.38  E-value: 2.68e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKK---DGDWWTGTVGDKAGVFPSNYVrlkDSEG 1062
Cdd:cd11977      4 VARYNFAARDMRELSLREGDVVRIYSRiggDQGWWKGETNGRIGWFPSTYV---EEEG 58
SH3_Abi2 cd11972
Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It ...
747-804 2.76e-04

Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It regulates actin cytoskeletal reorganization at adherens junctions and dendritic spines, which is important in cell morphogenesis, migration, and cognitive function. Mice deficient with Abi2 show defects in orientation and migration of lens fibers, neuronal migration, dendritic spine morphology, as well as deficits in learning and memory. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212905 [Multi-domain]  Cd Length: 61  Bit Score: 40.76  E-value: 2.76e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAEKI 804
Cdd:cd11972      7 AIYDYTKDKEDELSFQEGAIIYV-------IKKNDDGWYEGVMNGVTGLFPGNYVESI 57
SH3_FCHSD1_2 cd11895
Second Src Homology 3 domain of FCH and double SH3 domains protein 1; FCHSD1 has a domain ...
1009-1052 2.76e-04

Second Src Homology 3 domain of FCH and double SH3 domains protein 1; FCHSD1 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212828  Cd Length: 58  Bit Score: 40.33  E-value: 2.76e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-----DGDWWTGTVGDKAGVFPS 1052
Cdd:cd11895      4 ALYSYTGQSPEELSFPEGALIRLLPRaqdgvDDGFWRGEFGGRVGVFPS 52
SH3_PSTPIP1 cd11824
Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, ...
745-803 2.82e-04

Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, also called CD2 Binding Protein 1 (CD2BP1), is mainly expressed in hematopoietic cells. It is a binding partner of the cell surface receptor CD2 and PTP-PEST, a tyrosine phosphatase which functions in cell motility and Rac1 regulation. It also plays a role in the activation of the Wiskott-Aldrich syndrome protein (WASP), which couples actin rearrangement and T cell activation. Mutations in the gene encoding PSTPIP1 cause the autoinflammatory disorder known as PAPA (pyogenic sterile arthritis, pyoderma gangrenosum, and acne) syndrome. PSTPIP1 contains an N-terminal F-BAR domain, PEST motifs, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212758 [Multi-domain]  Cd Length: 53  Bit Score: 40.43  E-value: 2.82e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVkgewVDEsqtGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd11824      2 YSVLYDYTAQEDDELSISKGDVVAV----IEK---GEDGWWTVERNGQKGLVPGTYLEK 53
sbcc TIGR00618
exonuclease SbcC; All proteins in this family for which functions are known are part of an ...
335-717 2.85e-04

exonuclease SbcC; All proteins in this family for which functions are known are part of an exonuclease complex with sbcD homologs. This complex is involved in the initiation of recombination to regulate the levels of palindromic sequences in DNA. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]


Pssm-ID: 129705 [Multi-domain]  Cd Length: 1042  Bit Score: 45.73  E-value: 2.85e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLpvtfedkkrENFERGNLELEKRRQALLEQQRKEQE---RLAQLERAEQERKERERQEQERKRQlELEK 411
Cdd:TIGR00618  533 GEQTYAQLETSE---------EDVYHQLTSERKQRASLKEQMQEIQQsfsILTQCDNRSKEDIPNLQNITVRLQD-LTEK 602
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  412 QLEKQRELERqreeerrkeierreaAKRELERQrqLEWERNRRQELLNQRNKEQEDIVVLKAKKKTL-----EFELEALN 486
Cdd:TIGR00618  603 LSEAEDMLAC---------------EQHALLRK--LQPEQDLQDVRLHLQQCSQELALKLTALHALQltltqERVREHAL 665
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  487 DKKHQLEGKLQDIRCRLTTQRQEIESTNKSRElriaEITHLQQQLqesqqmlgRLIPEKQILNDQLKQVQQNSLHrdslv 566
Cdd:TIGR00618  666 SIRVLPKELLASRQLALQKMQSEKEQLTYWKE----MLAQCQTLL--------RELETHIEEYDREFNEIENASS----- 728
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  567 TLKRALEAKELARQHLRDQLDEvEKETRSKLQEIDIFNNQLKELREIHNKQQLQKqksMEAERLKQKEQERKIIELEKQK 646
Cdd:TIGR00618  729 SLGSDLAAREDALNQSLKELMH-QARTVLKARTEAHFNNNEEVTAALQTGAELSH---LAAEIQFFNRLREEDTHLLKTL 804
                          330       340       350       360       370       380       390
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  647 EEAQRRAQERDKQWLE---HVQQEDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQEAQdKLGRLFHQHQEPAK 717
Cdd:TIGR00618  805 EAEIGQEIPSDEDILNlqcETLVQEEEQFLSRLEEKSATLGEITHQLLKYEECSKQLAQ-LTQEQAKIIQLSDK 877
SH3_Intersectin1_1 cd11987
First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
1009-1054 2.87e-04

First Src homology 3 domain (or SH3A) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The first SH3 domain (or SH3A) of ITSN1 has been shown to bind many proteins including Sos1, dynamin1/2, CIN85, c-Cbl, PI3K-C2, SHIP2, N-WASP, and CdGAP, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212920 [Multi-domain]  Cd Length: 55  Bit Score: 40.37  E-value: 2.87e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK---DGDWWTGTVGDKAGVFPSNY 1054
Cdd:cd11987      4 ALYPFEARSHDEITIQPGDIVMVDESqtgEPGWLGGELKGKTGWFPANY 52
SH3_Shank3 cd11984
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also ...
1081-1133 2.89e-04

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also called ProSAP2 (Proline-rich synapse-associated protein 2), is widely expressed. It plays a role in the formation of dendritic spines and synapses. Haploinsufficiency of the Shank3 gene causes the 22q13 deletion/Phelan-McDermid syndrome, and variants of Shank3 have been implicated in autism spectrum disorder, schizophrenia, and intellectual disability. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212917  Cd Length: 52  Bit Score: 40.32  E-value: 2.89e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGkkrqiGWFPANYV 1133
Cdd:cd11984      5 AVKAYSPQGEGEIQLNRGERVKVLSIGEGGFWEGTVKGRT-----GWFPADCV 52
SH3_Tec cd11905
Src Homology 3 domain of Tec (Tyrosine kinase expressed in hepatocellular carcinoma); Tec is a ...
1005-1058 2.92e-04

Src Homology 3 domain of Tec (Tyrosine kinase expressed in hepatocellular carcinoma); Tec is a cytoplasmic (or nonreceptor) tyr kinase containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. It also contains an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation, and the Tec homology (TH) domain, which contains proline-rich and zinc-binding regions. It is more widely-expressed than other Tec subfamily kinases. Tec is found in endothelial cells, both B- and T-cells, and a variety of myeloid cells including mast cells, erythroid cells, platelets, macrophages and neutrophils. Tec is a key component of T-cell receptor (TCR) signaling, and is important in TCR-stimulated proliferation, IL-2 production and phospholipase C-gamma1 activation. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212838 [Multi-domain]  Cd Length: 56  Bit Score: 40.18  E-value: 2.92e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1005 EEFIAMYTYESSEQGDLTFQQG-DVILVTKKDGDWWTGTvgDK---AGVFPSNYVRLK 1058
Cdd:cd11905      1 EIVVAMYDFQPTEPHDLRLETGeEYVILEKNDVHWWKAR--DKygkEGYIPSNYVTGK 56
SH3_iASPP cd11952
Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP); iASPP, also called ...
1009-1057 3.00e-04

Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP); iASPP, also called RelA-associated inhibitor (RAI), is an oncoprotein that inhibits the apoptotic transactivation potential of p53. It is upregulated in human breast cancers expressing wild-type p53, in acute leukemias regardless of the p53 mutation status, as well as in ovarian cancer where it is associated with poor patient outcome and chemoresistance. iASPP is also a binding partner and negative regulator of p65RelA, which promotes cell proliferation and inhibits apoptosis; p65RelA has the opposite effect on cell growth compared to the p53 family. It contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of iASPP contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212885 [Multi-domain]  Cd Length: 56  Bit Score: 40.30  E-value: 3.00e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKDG---DWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11952      5 ALWDYSAEFPDELSFKEGDMVTVLRKDGegtDWWWASLCGREGYVPRNYFGL 56
SH3_SH3RF1_3 cd11926
Third Src Homology 3 domain of SH3 domain containing ring finger 1, an E3 ubiquitin-protein ...
1007-1055 3.02e-04

Third Src Homology 3 domain of SH3 domain containing ring finger 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212859 [Multi-domain]  Cd Length: 55  Bit Score: 40.34  E-value: 3.02e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTV--GDKAGVFPSNYV 1055
Cdd:cd11926      2 YVAIYPYTPRKEDELELRKGEMFLVFERCQDgWFKGTSmhTSKIGVFPGNYV 53
CCDC158 pfam15921
Coiled-coil domain-containing protein 158; CCDC158 is a family of proteins found in eukaryotes. ...
332-687 3.03e-04

Coiled-coil domain-containing protein 158; CCDC158 is a family of proteins found in eukaryotes. The function is not known.


Pssm-ID: 464943 [Multi-domain]  Cd Length: 1112  Bit Score: 45.88  E-value: 3.03e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  332 EPVLEDEQQQ---LEKKLPVTFEDKKRENFergnleleKRRQALLEQQRKEQErlAQLER---AEQERKERERQEqerkr 405
Cdd:pfam15921   77 ERVLEEYSHQvkdLQRRLNESNELHEKQKF--------YLRQSVIDLQTKLQE--MQMERdamADIRRRESQSQE----- 141
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  406 qlELEKQLEKQRelerqreeerrkeierreaakRELERQRQLewernrRQELLNQRNKEQEDIvvlkaKKKTLEFeleal 485
Cdd:pfam15921  142 --DLRNQLQNTV---------------------HELEAAKCL------KEDMLEDSNTQIEQL-----RKMMLSH----- 182
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  486 ndkkhqlEGKLQDIRCRLT---------TQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPekqiLNDQLKQVQ 556
Cdd:pfam15921  183 -------EGVLQEIRSILVdfeeasgkkIYEHDSMSTMHFRSLGSAISKILRELDTEISYLKGRIFP----VEDQLEALK 251
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  557 QNSLHRDSLVTLKRALEAKELARQH------LRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERL 630
Cdd:pfam15921  252 SESQNKIELLLQQHQDRIEQLISEHeveitgLTEKASSARSQANSIQSQLEIIQEQARNQNSMYMRQLSDLESTVSQLRS 331
                          330       340       350       360       370       380
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  631 KQKEQER----KIIELEKQ----KEEAQRRAQERDKQWLEHVQQEDEHQR-PRKLHEEEK---LKREES 687
Cdd:pfam15921  332 ELREAKRmyedKIEELEKQlvlaNSELTEARTERDQFSQESGNLDDQLQKlLADLHKREKelsLEKEQN 400
SH3_CIN85_2 cd12055
Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1009-1056 3.04e-04

Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CIN85. SH3B has been shown to bind Cbl proline-rich peptides and ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212988 [Multi-domain]  Cd Length: 53  Bit Score: 40.36  E-value: 3.04e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd12055      4 VAFSYLPQNEDELELKVGDIIeVVGEVEEGWWEGVLNGKTGMFPSNFIK 52
SH3_Vinexin_1 cd11921
First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3) ...
1085-1136 3.08e-04

First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212854  Cd Length: 55  Bit Score: 40.29  E-value: 3.08e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARgkkrqIGWFPANYVKLL 1136
Cdd:cd11921      9 FQAQSPKELTLQKGDIVYIHKEVDKNWLEGEHHGR-----VGIFPANYVEVL 55
SH3_GRAF-like cd11882
Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar ...
917-968 3.12e-04

Src Homology 3 domain of GTPase Regulator Associated with Focal adhesion kinase and similar proteins; This subfamily is composed of Rho GTPase activating proteins (GAPs) with similarity to GRAF. Members contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, a Rho GAP domain, and a C-terminal SH3 domain. Although vertebrates harbor four Rho GAPs in the GRAF subfamily including GRAF, GRAF2, GRAF3, and Oligophrenin-1 (OPHN1), only three are included in this model. OPHN1 contains the BAR, PH and GAP domains, but not the C-terminal SH3 domain. GRAF and GRAF2 show GAP activity towards RhoA and Cdc42. GRAF influences Rho-mediated cytoskeletal rearrangements and binds focal adhesion kinase. GRAF2 regulates caspase-activated p21-activated protein kinase-2. The SH3 domain of GRAF and GRAF2 binds PKNbeta, a target of the small GTPase Rho. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212815 [Multi-domain]  Cd Length: 54  Bit Score: 40.35  E-value: 3.12e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQ--QDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11882      1 RARALYACKAEDESELSFEPGQIITNVQPsdEPGWLEGTLNGRTGLIPENYVEF 54
SH3_SH3RF_C cd11785
C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), ...
1166-1210 3.16e-04

C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the fourth SH3 domain, located at the C-terminus of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212719  Cd Length: 55  Bit Score: 40.14  E-value: 3.16e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1166 YTAQNDDELAFNKGQIINVLNKEDPDWWKG--EVNGQVGLFPSNYVK 1210
Cdd:cd11785      8 YPPQSEAELELKEGDIVFVHKKREDGWFKGtlQRTGKTGLFPGSFVE 54
SH3_MPP3 cd12039
Src Homology 3 domain of Membrane Protein, Palmitoylated 3 (or MAGUK p55 subfamily member 3); ...
1163-1206 3.17e-04

Src Homology 3 domain of Membrane Protein, Palmitoylated 3 (or MAGUK p55 subfamily member 3); MPP3 is a scaffolding protein that colocalizes with MPP5 and CRB1 at the subdpical region adjacent to adherens junctions and may function in photoreceptor polarity. It interacts with some nectins and regulates their trafficking and processing. Nectins are cell-cell adhesion proteins involved in the establishment apical-basal polarity at cell adhesion sites. It is one of seven vertebrate homologs of the Drosophila Stardust protein, which is required in establishing cell polarity, and it contains two L27 domains followed by the core of three domains characteristic of MAGUK (membrane-associated guanylate kinase) proteins: PDZ, SH3, and guanylate kinase (GuK). The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212972  Cd Length: 62  Bit Score: 40.33  E-value: 3.17e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1163 MYDYTAQNDDE-------LAFNKGQIINVLNKEDPDWWK----GEVNGQVGLFPS 1206
Cdd:cd12039      5 LFDYNPYEDRAipcqeagLPFKRRDILEVVSQDDPTWWQakrvGDTNLRAGLIPS 59
SH3_SNX18 cd11897
Src Homology 3 domain of Sorting nexin 18; SNX18 is localized to peripheral endosomal ...
917-968 3.18e-04

Src Homology 3 domain of Sorting nexin 18; SNX18 is localized to peripheral endosomal structures, and acts in a trafficking pathway that is clathrin-independent but relies on AP-1 and PACS1. It binds FIP5 and is required for apical lumen formation. It may also play a role in axonal elongation. SNXs are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNX18 also contains BAR and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212830 [Multi-domain]  Cd Length: 55  Bit Score: 40.36  E-value: 3.18e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM--WWFG-EVQGQKGWFPKSYVKL 968
Cdd:cd11897      1 RARALYDFRSENPGEISLREHEVLSLCSEQDIegWLEGvNSRGDRGLFPASYVEV 55
SH3_RUSC2 cd11957
Src homology 3 domain of RUN and SH3 domain-containing protein 2; RUSC2, also called Iporin or ...
1006-1055 3.23e-04

Src homology 3 domain of RUN and SH3 domain-containing protein 2; RUSC2, also called Iporin or Interacting protein of Rab1, is expressed ubiquitously with highest amounts in the brain and testis. It interacts with the small GTPase Rab1 and the Golgi matrix protein GM130, and may function in linking GTPases to certain intracellular signaling pathways. RUSC proteins are adaptor proteins consisting of RUN, leucine zipper, and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212890  Cd Length: 52  Bit Score: 40.28  E-value: 3.23e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILV-TKKDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11957      1 EVKALCHHIATEPGQLSFNKGDILQVlSRADGDWLRCSLGPDSGLVPIAYV 51
SH3_CD2AP_2 cd12054
Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ...
917-967 3.27e-04

Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CD2AP. SH3B binds to c-Cbl in a site (TPSSRPLR is the core binding motif) distinct from the c-Cbl/SH3A binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212987 [Multi-domain]  Cd Length: 55  Bit Score: 40.34  E-value: 3.27e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd12054      2 QCKVLFEYVPQNEDELELKVGDIIDINEEvEEGWWSGTLNGKSGLFPSNFVK 53
SH3_Endophilin_B cd11802
Src homology 3 domain of Endophilin-B; Endophilins play roles in synaptic vesicle formation, ...
1163-1208 3.28e-04

Src homology 3 domain of Endophilin-B; Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They are classified into two types, A and B. Vertebrates contain two endophilin-B isoforms. Endophilin-B proteins are cytoplasmic proteins expressed mainly in the heart, placenta, and skeletal muscle. Endophilins contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212736 [Multi-domain]  Cd Length: 52  Bit Score: 39.96  E-value: 3.28e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINV--LNKEDPDWWKGEVNGQVGLFPSNY 1208
Cdd:cd11802      5 LYDYDAEDSTELSLLADEVITVyeLPGMDEDYMMGERGSQRGKVPVAY 52
SH3_Sorbs1_3 cd11916
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), ...
1009-1057 3.39e-04

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212849 [Multi-domain]  Cd Length: 59  Bit Score: 40.36  E-value: 3.39e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTV--GDKAGVFPSNYVRL 1057
Cdd:cd11916      6 ALYSYAPQNDDELELRDGDIVDVMEKcDDGWFVGTSrrTKQFGTFPGNYVKL 57
SH3_p67phox-like_C cd11870
C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; ...
917-967 3.40e-04

C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; This subfamily is composed of p67phox, NADPH oxidase activator 1 (Noxa1), and similar proteins. p67phox, also called Neutrophil cytosol factor 2 (NCF-2), and Noxa1 are homologs and are the cytosolic subunits of the phagocytic (Nox2) and nonphagocytic (Nox1) NADPH oxidase complexes, respectively. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox and Noxa1 play regulatory roles. p67phox contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. Noxa1 has a similar domain architecture except it is lacking the N-terminal SH3 domain. The TPR domain of both binds activated GTP-bound Rac, while the C-terminal SH3 domain of p67phox and Noxa1 binds the polyproline motif found at the C-terminus of p47phox and Noxo1, respectively. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212803 [Multi-domain]  Cd Length: 53  Bit Score: 40.20  E-value: 3.40e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSYVK 967
Cdd:cd11870      1 QVVALHRYEAQGPEDLGFREGDTIDVLSEVNEAWLeGHSDGRVGIFPKCFVV 52
SH3_Sorbs1_2 cd11922
Second Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ...
1159-1211 3.47e-04

Second Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212855 [Multi-domain]  Cd Length: 58  Bit Score: 40.36  E-value: 3.47e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNG--QVGLFPSNYVKL 1211
Cdd:cd11922      2 EAIAKFNFNGDTQVEMSFRKGERITLLRQVDENWYEGRIPGtsRQGIFPITYVDV 56
SH3_Vinexin_3 cd11918
Third (or C-terminal) Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain ...
1004-1055 3.49e-04

Third (or C-terminal) Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212851 [Multi-domain]  Cd Length: 58  Bit Score: 40.33  E-value: 3.49e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1004 GEEFIAMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTV--GDKAGVFPSNYV 1055
Cdd:cd11918      1 RTPYKAVYQYRPQNEDELELREGDRVDVMQQcDDGWFVGVSrrTQKFGTFPGNYV 55
SH3_CD2AP_3 cd12056
Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ...
919-968 3.62e-04

Third Src Homology 3 domain (SH3C) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the third SH3 domain (SH3C) of CD2AP. SH3C has been shown to bind ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212989 [Multi-domain]  Cd Length: 57  Bit Score: 40.19  E-value: 3.62e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQ---QDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd12056      5 KALFHYEGTNEDELDFKEGEIILIISKdtgEPGWWKGELNGKEGVFPDNFVSQ 57
SH3_HS1 cd12073
Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 ...
1085-1136 3.63e-04

Src homology 3 domain of Hematopoietic lineage cell-specific protein 1; HS1, also called HCLS1 (hematopoietic cell-specific Lyn substrate 1), is a cortactin homolog expressed specifically in hematopoietic cells. It is an actin regulatory protein that binds the Arp2/3 complex and stabilizes branched actin filaments. It is required for cell spreading and signaling in lymphocytes. It regulates cytoskeletal remodeling that controls lymphocyte trafficking, and it also affects tissue invasion and infiltration of leukemic B cells. Like cortactin, HS1 contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region binds the Arp2/3 complex and F-actin, while the C-terminal region acts as an adaptor or scaffold that can connect varied proteins that bind the SH3 domain within the actin network. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213006 [Multi-domain]  Cd Length: 55  Bit Score: 40.20  E-value: 3.63e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPGGWWEGelQARGKkrqIGWFPANYVKLL 1136
Cdd:cd12073      9 YQGEGDDEISFDPQETITDIEMVDEGWWKG--TCHGH---RGLFPANYVELL 55
Nop53 pfam07767
Nop53 (60S ribosomal biogenesis); This nucleolar family of proteins are involved in 60S ...
363-497 3.66e-04

Nop53 (60S ribosomal biogenesis); This nucleolar family of proteins are involved in 60S ribosomal biogenesis. They are specifically involved in the processing beyond the 27S stage of 25S rRNA maturation. This family contains sequences that bear similarity to the glioma tumour suppressor candidate region gene 2 protein (p60). This protein has been found to interact with herpes simplex type 1 regulatory proteins.


Pssm-ID: 462259 [Multi-domain]  Cd Length: 353  Bit Score: 44.98  E-value: 3.66e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  363 LELEKRRQALLEQQRKEQERLAQLERAEQERK-----ERERQEQERKRQLELEKQLEKQrelerqreeerrkeierreaa 437
Cdd:pfam07767  209 KKRLKEEEKLERVLEKIAESAATAEAREEKRKtkaqrNKEKRRKEEEREAKEEKALKKK--------------------- 267
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  438 KRELERQRQLewernrRQELLNQRNKEQEDIVVLKAKKKTLEFELEALndKKHQLeGKLQ 497
Cdd:pfam07767  268 LAQLERLKEI------AKEIAEKEKEREEKAEARKREKRKKKKEEKKL--RPRKL-GKHK 318
SH3_Shank cd11832
Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank ...
1007-1052 3.74e-04

Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. They bind a variety of membrane and cytosolic proteins, and exist in alternatively spliced isoforms. They are highly enriched in postsynaptic density (PSD) where they interact with the cytoskeleton and with postsynaptic membrane receptors including NMDA and glutamate receptors. They are crucial in the construction and organization of the PSD and dendritic spines of excitatory synapses. There are three members of this family (Shank1, Shank2, Shank3) which show distinct and cell-type specific patterns of expression. Shank1 is brain-specific; Shank2 is found in neurons, glia, endocrine cells, liver, and kidney; Shank3 is widely expressed. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212766  Cd Length: 50  Bit Score: 39.73  E-value: 3.74e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTK-KDGDWWTGTVGDKAGVFPS 1052
Cdd:cd11832      2 FIAVKSYSPQEEGEISLHKGDRVKVLSiGEGGFWEGSVRGRTGWFPS 48
SH3_MIA_like cd11760
Src Homology 3 domain of Melanoma Inhibitory Activity protein and similar proteins; MIA is a ...
1163-1210 3.75e-04

Src Homology 3 domain of Melanoma Inhibitory Activity protein and similar proteins; MIA is a single domain protein that adopts a SH3 domain-like fold; it contains an additional antiparallel beta sheet and two disulfide bonds compared to classical SH3 domains. MIA is secreted from malignant melanoma cells and it plays an important role in melanoma development and invasion. MIA is expressed by chondrocytes in normal tissues and may be important in the cartilage cell phenotype. Unlike classical SH3 domains, MIA does not bind proline-rich ligands. MIA is a member of the recently identified family that also includes MIA-like (MIAL), MIA2, and MIA3 (also called TANGO); the biological functions of this family are not yet fully understood.


Pssm-ID: 212694  Cd Length: 76  Bit Score: 40.54  E-value: 3.75e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNK---EDPDWWKGEVNGQ---VGLFPSNYVK 1210
Cdd:cd11760     17 LEDYHGPDCRFLNFKKGDTIYVYSKlagERQDLWAGSVGGDaglFGYFPKNLVQ 70
flagell_FliJ TIGR02473
flagellar export protein FliJ; Members of this family are the FliJ protein found, in nearly ...
550-666 3.87e-04

flagellar export protein FliJ; Members of this family are the FliJ protein found, in nearly every case, in the midst of other flagellar biosynthesis genes in bacgterial genomes. Typically the fliJ gene is found adjacent to the gene for the flagellum-specific ATPase FliI. Sequence scoring in the gray zone between trusted and noise cutoffs include both probable FliJ proteins and components of bacterial type III secretion systems.


Pssm-ID: 131526 [Multi-domain]  Cd Length: 141  Bit Score: 42.30  E-value: 3.87e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  550 DQLKQVQQnsLHRDSLVTLKRALEAKELARQHLRDQLDEVEKETR----------------SKLQEIDIFNNQLKELREI 613
Cdd:TIGR02473    2 FRLQKLLD--LREKEEEQAKLELAKAQAEFERLETQLQQLIKYREeyeqqalekvgagtsaLELSNYQRFIRQLDQRIQQ 79
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  614 HNKQQLQKQKSMEA--ERLKQKEQERKIIEL--EKQKEEAQRRAQERDKQWL-EHVQQ 666
Cdd:TIGR02473   80 QQQELALLQQEVEAkrERLLEARRELKALEKlkEKKQKEYRAEEAKREQKEMdELATQ 137
tolA_full TIGR02794
TolA protein; TolA couples the inner membrane complex of itself with TolQ and TolR to the ...
588-686 3.87e-04

TolA protein; TolA couples the inner membrane complex of itself with TolQ and TolR to the outer membrane complex of TolB and OprL (also called Pal). Most of the length of the protein consists of low-complexity sequence that may differ in both length and composition from one species to another, complicating efforts to discriminate TolA (the most divergent gene in the tol-pal system) from paralogs such as TonB. Selection of members of the seed alignment and criteria for setting scoring cutoffs are based largely conserved operon struction. //The Tol-Pal complex is required for maintaining outer membrane integrity. Also involved in transport (uptake) of colicins and filamentous DNA, and implicated in pathogenesis. Transport is energized by the proton motive force. TolA is an inner membrane protein that interacts with periplasmic TolB and with outer membrane porins ompC, phoE and lamB. [Transport and binding proteins, Other, Cellular processes, Pathogenesis]


Pssm-ID: 274303 [Multi-domain]  Cd Length: 346  Bit Score: 44.84  E-value: 3.87e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  588 EVEKETRSKLQEIDIFNNQLKELREihNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQE 667
Cdd:TIGR02794   51 QANRIQQQKKPAAKKEQERQKKLEQ--QAEEAEKQRAAEQARQKELEQRAAAEKAAKQAEQAAKQAEEKQKQAEEAKAKQ 128
                           90       100
                   ....*....|....*....|....*.
gi 1034627469  668 -------DEHQRPRKLHEEEKLKREE 686
Cdd:TIGR02794  129 aaeakakAEAEAERKAKEEAAKQAEE 154
SH3_DNMBP_C2_like cd11800
Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and ...
1007-1056 3.92e-04

Second C-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba, and similar domains; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics. It plays an important role in regulating cell junction configuration. The C-terminal SH3 domains of DNMBP bind to N-WASP and Ena/VASP proteins, which are key regulatory proteins of the actin cytoskeleton. Also included in this subfamily is the second C-terminal SH3 domain of Rho guanine nucleotide exchange factor 37 (ARHGEF37), whose function is still unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212734 [Multi-domain]  Cd Length: 57  Bit Score: 40.05  E-value: 3.92e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILV-----TKKDGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd11800      2 YYALYTFEARSPGELSVTEGQVVTVlekhdLKGNPEWWLVEDRGKQGYVPSNYLA 56
PRK12704 PRK12704
phosphodiesterase; Provisional
336-416 3.97e-04

phosphodiesterase; Provisional


Pssm-ID: 237177 [Multi-domain]  Cd Length: 520  Bit Score: 45.15  E-value: 3.97e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  336 EDEQQQLEKKLPVTFE--DKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKER-ER-----QEQERKRQL 407
Cdd:PRK12704    81 RNELQKLEKRLLQKEEnlDRKLELLEKREEELEKKEKELEQKQQELEKKEEELEELIEEQLQElERisgltAEEAKEILL 160
                           90
                   ....*....|
gi 1034627469  408 E-LEKQLEKQ 416
Cdd:PRK12704   161 EkVEEEARHE 170
SH3_ASPP1 cd11954
Src Homology 3 domain of Apoptosis Stimulating of p53 protein 1; ASPP1, like ASPP2, activates ...
918-968 4.00e-04

Src Homology 3 domain of Apoptosis Stimulating of p53 protein 1; ASPP1, like ASPP2, activates the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73). In addition, it functions in the cytoplasm to regulate the nuclear localization of the transcriptional cofactors YAP and TAZ by inihibiting their phosphorylation; YAP and TAZ are important regulators of cell expansion, differentiation, migration, and invasion. ASPP1 is downregulated in breast tumors expressing wild-type p53. It contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of ASPP1 contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212887 [Multi-domain]  Cd Length: 57  Bit Score: 40.00  E-value: 4.00e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQD----MWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11954      3 VYALWDYEAQNADELSFQEGDAITILRRKDdsetEWWWARLNDKEGYVPKNLLGL 57
C2B_Munc13 cd04027
C2 domain second repeat in Munc13 (mammalian uncoordinated) proteins; C2-like domains are ...
1615-1682 4.01e-04

C2 domain second repeat in Munc13 (mammalian uncoordinated) proteins; C2-like domains are thought to be involved in phospholipid binding in a Ca2+ independent manner in both Unc13 and Munc13. Caenorabditis elegans Unc13 has a central domain with sequence similarity to PKC, which includes C1 and C2-related domains. Unc13 binds phorbol esters and DAG with high affinity in a phospholipid manner. Mutations in Unc13 results in abnormal neuronal connections and impairment in cholinergic neurotransmission in the nematode. Munc13 is the mammalian homolog which are expressed in the brain. There are 3 isoforms (Munc13-1, -2, -3) and are thought to play a role in neurotransmitter release and are hypothesized to be high-affinity receptors for phorbol esters. Unc13 and Munc13 contain both C1 and C2 domains. There are two C2 related domains present, one central and one at the carboxyl end. Munc13-1 contains a third C2-like domain. Munc13 interacts with syntaxin, synaptobrevin, and synaptotagmin suggesting a role for these as scaffolding proteins. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 175993 [Multi-domain]  Cd Length: 127  Bit Score: 42.17  E-value: 4.01e-04
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469 1615 GKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLcITVFERD---------QFS--PDDFLGRTEIRV 1682
Cdd:cd04027     20 GTSDPYVTVQVGKTKKRTKTIPQNLNPVWNEKFHFECHNSSDRIK-VRVWDEDddiksrlkqKFTreSDDFLGQTIIEV 97
rad50 TIGR00606
rad50; All proteins in this family for which functions are known are involvedin recombination, ...
370-686 4.04e-04

rad50; All proteins in this family for which functions are known are involvedin recombination, recombinational repair, and/or non-homologous end joining.They are components of an exonuclease complex with MRE11 homologs. This family is distantly related to the SbcC family of bacterial proteins.This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University).


Pssm-ID: 129694 [Multi-domain]  Cd Length: 1311  Bit Score: 45.42  E-value: 4.04e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  370 QALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKqLEKQRELERQREEERRKEIERREAAKRELERQRQLEW 449
Cdd:TIGR00606  690 EAELQEFISDLQSKLRLAPDKLKSTESELKKKEKRRDEMLGL-APGRQSIIDLKEKEIPELRNKLQKVNRDIQRLKNDIE 768
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  450 ERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRiaeithlqq 529
Cdd:TIGR00606  769 EQETLLGTIMPEEESAKVCLTDVTIMERFQMELKDVERKIAQQAAKLQGSDLDRTVQQVNQEKQEKQHELD--------- 839
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  530 qlqeSQQMLGRLIpeKQILNDQLKQVQQNSLHRDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKE 609
Cdd:TIGR00606  840 ----TVVSKIELN--RKLIQDQQEQIQHLKSKTNELKSEKLQIGTNLQRRQQFEEQLVELSTEVQSLIREIKDAKEQDSP 913
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  610 LRE------------IHNKQQLQKQKSME----AERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRP 673
Cdd:TIGR00606  914 LETflekdqqekeelISSKETSNKKAQDKvndiKEKVKNIHGYMKDIENKIQDGKDDYLKQKETELNTVNAQLEECEKHQ 993
                          330
                   ....*....|...
gi 1034627469  674 RKLHEEEKLKREE 686
Cdd:TIGR00606  994 EKINEDMRLMRQD 1006
SH3_SH3RF_C cd11785
C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), ...
1080-1134 4.04e-04

C-terminal (Fourth) Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the fourth SH3 domain, located at the C-terminus of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212719  Cd Length: 55  Bit Score: 39.76  E-value: 4.04e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKrqiGWFPANYVK 1134
Cdd:cd11785      3 RVIVPYPPQSEAELELKEGDIVFVHKKREDGWFKGTLQRTGKT---GLFPGSFVE 54
DDRGK pfam09756
DDRGK domain; This is a family of proteins of approximately 300 residues, found in plants and ...
366-501 4.04e-04

DDRGK domain; This is a family of proteins of approximately 300 residues, found in plants and vertebrates. They contain a highly conserved DDRGK motif.


Pssm-ID: 370664 [Multi-domain]  Cd Length: 188  Bit Score: 43.11  E-value: 4.04e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  366 EKRRQALLEQQRKEQERLAQleraEQERKERERQEQERKRQLELEKqlekqrelerqreeerrkeierreaAKRELERQR 445
Cdd:pfam09756    5 AKKRAKLELKEAKRQQREAE----EEEREEREKLEEKREEEYKERE-------------------------EREEEAEKE 55
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  446 QLEWERNRRQEllnQRNKEQEDIVVLKAkkktlEFELEALNDKKHQLEGKLQDIRC 501
Cdd:pfam09756   56 KEEEERKQEEE---QERKEQEEYEKLKS-----QFVVEEEGTDKLSAEDESQLLED 103
PH pfam00169
PH domain; PH stands for pleckstrin homology.
1465-1571 4.09e-04

PH domain; PH stands for pleckstrin homology.


Pssm-ID: 459697 [Multi-domain]  Cd Length: 105  Bit Score: 41.39  E-value: 4.09e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1465 HSGKLYK-----AKSNKELYGFLFNDFLLLtqitkplgssgtdkvFSPKSNLQYKMYKTPIFLNEV-LVKLPTDPSGDEP 1538
Cdd:pfam00169    3 KEGWLLKkgggkKKSWKKRYFVLFDGSLLY---------------YKDDKSGKSKEPKGSISLSGCeVVEVVASDSPKRK 67
                           90       100       110
                   ....*....|....*....|....*....|....*...
gi 1034627469 1539 -IFHISHID----RVYTLRAESINERTAWVQKIKAASE 1571
Cdd:pfam00169   68 fCFELRTGErtgkRTYLLQAESEEERKDWIKAIQSAIR 105
SH3_GRB2_like_N cd11804
N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
1006-1055 4.12e-04

N-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The N-terminal SH3 domain of GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212738 [Multi-domain]  Cd Length: 52  Bit Score: 39.65  E-value: 4.12e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKKDGD--WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11804      1 EAVAKHDFKATAEDELSFKKGSILKVLNMEDDpnWYKAELDGKEGLIPKNYI 52
SH3_VAV3_2 cd11978
C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed ...
1078-1134 4.16e-04

C-terminal (or second) Src homology 3 domain of VAV3 protein; VAV3 is ubiquitously expressed and functions as a phosphorylation-dependent guanine nucleotide exchange factor (GEF) for RhoA, RhoG, and Rac1. It has been implicated to function in the hematopoietic, bone, cerebellar, and cardiovascular systems. VAV3 is essential in axon guidance in neurons that control blood pressure and respiration. It is overexpressed in prostate cancer cells and it plays a role in regulating androgen receptor transcriptional activity. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212911 [Multi-domain]  Cd Length: 56  Bit Score: 40.01  E-value: 4.16e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1078 IAQVIASYTATGPEQLTLAPGQLILI-RKKNPGGWWEGELQARgkkrqIGWFPANYVK 1134
Cdd:cd11978      2 IAIARYDFCARDMRELSLLKGDVVKIyTKMSTNGWWRGEVNGR-----VGWFPSTYVE 54
HlpA COG2825
Periplasmic chaperone for outer membrane proteins, Skp family [Cell wall/membrane/envelope ...
335-416 4.18e-04

Periplasmic chaperone for outer membrane proteins, Skp family [Cell wall/membrane/envelope biogenesis, Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 442073 [Multi-domain]  Cd Length: 171  Bit Score: 42.90  E-value: 4.18e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLpvtfeDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLE 414
Cdd:COG2825     48 LEKEFKKRQAEL-----QKLEKELQALQEKLQKEAATLSEEERQKKERELQKKQQELQRKQQEAQQDLQKRQQELLQPIL 122

                   ..
gi 1034627469  415 KQ 416
Cdd:COG2825    123 EK 124
SH3_SH3YL1_like cd11841
Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes ...
747-800 4.40e-04

Src homology 3 domain of SH3 domain containing Ysc84-like 1 (SH3YL1) protein; SH3YL1 localizes to the plasma membrane and is required for dorsal ruffle formation. It binds phosphoinositides (PIs) with high affinity through its N-terminal SYLF domain (also called DUF500). In addition, SH3YL1 contains a C-terminal SH3 domain which has been reported to bind to N-WASP, dynamin 2, and SHIP2 (a PI 5-phosphatase). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212775  Cd Length: 54  Bit Score: 39.68  E-value: 4.40e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKgewvdeSQTG-EPGWLGGELKGKTGWFPANY 800
Cdd:cd11841      4 ALYSFEGQQPCDLSFQAGDRITVL------TRTDsQFDWWEGRLRGRVGIFPANY 52
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
363-524 4.41e-04

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 45.31  E-value: 4.41e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  363 LELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLEkqrelerqrEEERRKEIERREAAKRELE 442
Cdd:COG1196    651 LEGEGGSAGGSLTGGSRRELLAALLEAEAELEELAERLAEEELELEEALLAE---------EEEERELAEAEEERLEEEL 721
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  443 RQRQLEWERNR-RQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDI------------RCR-----LT 504
Cdd:COG1196    722 EEEALEEQLEAeREELLEELLEEEELLEEEALEELPEPPDLEELERELERLEREIEALgpvnllaieeyeELEerydfLS 801
                          170       180
                   ....*....|....*....|
gi 1034627469  505 TQRQEIESTNKSRELRIAEI 524
Cdd:COG1196    802 EQREDLEEARETLEEAIEEI 821
SH3_p47phox_2 cd12022
Second or C-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also ...
1165-1210 4.56e-04

Second or C-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also called Neutrophil Cytosolic Factor 1; p47phox, or NCF1, is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox), which plays a key role in the ability of phagocytes to defend against bacterial infections. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p47phox is required for activation of NADH oxidase and plays a role in translocation. It contains an N-terminal Phox homology (PX) domain, tandem SH3 domains (N-SH3 and C-SH3), a polybasic/autoinhibitory region, and a C-terminal proline-rich region (PRR). This model characterizes the second SH3 domain (or C-SH3) of p47phox. In its inactive state, the tandem SH3 domains interact intramolecularly with the autoinhibitory region; upon activation, the tandem SH3 domains are exposed through a conformational change, resulting in their binding to the PRR of p22phox and the activation of NADPH oxidase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212955 [Multi-domain]  Cd Length: 53  Bit Score: 39.82  E-value: 4.56e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1165 DYTAQNDDELAFNKGQIINVLNKEDPDWW---KGEvngQVGLFPSNYVK 1210
Cdd:cd12022      7 AYTAVEEDELTLLEGEAIEVIHKLLDGWWvvrKGE---VTGYFPSMYLQ 52
SH3_Cyk3p-like cd11889
Src Homology 3 domain of Cytokinesis protein 3 and similar proteins; Cytokinesis protein 3 ...
918-966 4.62e-04

Src Homology 3 domain of Cytokinesis protein 3 and similar proteins; Cytokinesis protein 3 (Cyk3 or Cyk3p) is a component of the actomyosin ring independent cytokinesis pathway in yeast. It interacts with Inn1 and facilitates its recruitment to the bud neck, thereby promoting cytokinesis. Cyk3p contains an N-terminal SH3 domain and a C-terminal transglutaminase-like domain. The Cyk3p SH3 domain binds to the C-terminal proline-rich region of Inn1. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212822  Cd Length: 53  Bit Score: 39.79  E-value: 4.62e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQD-MWWFGEVQ--GQKGWFPKSYV 966
Cdd:cd11889      2 VKAVYSWAGETEGDLGFLEGDLIEVLSIGDgSWWSGKLRrnGAEGIFPSNFV 53
CALCOCO1 pfam07888
Calcium binding and coiled-coil domain (CALCOCO1) like; Proteins found in this family are ...
335-669 4.72e-04

Calcium binding and coiled-coil domain (CALCOCO1) like; Proteins found in this family are similar to the coiled-coil transcriptional coactivator protein coexpressed by Mus musculus (CoCoA/CALCOCO1). This protein binds to a highly conserved N-terminal domain of p160 coactivators, such as GRIP1, and thus enhances transcriptional activation by a number of nuclear receptors. CALCOCO1 has a central coiled-coil region with three leucine zipper motifs, which is required for its interaction with GRIP1 and may regulate the autonomous transcriptional activation activity of the C-terminal region.


Pssm-ID: 462303 [Multi-domain]  Cd Length: 488  Bit Score: 44.89  E-value: 4.72e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLPVTFED-----KKRENFERGNLELEKRRQALLEQQRKEQERLAQLE-------------RAEQER-KE 395
Cdd:pfam07888   78 LESRVAELKEELRQSREKheeleEKYKELSASSEELSEEKDALLAQRAAHEARIRELEediktltqrvlerETELERmKE 157
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  396 RERQEQERKRQLELEK---QLEKQRELERQREEERRKEIERREAAKRELERQrQLEWERNRRQELLNQRNKEQEDIVVLK 472
Cdd:pfam07888  158 RAKKAGAQRKEEEAERkqlQAKLQQTEEELRSLSKEFQELRNSLAQRDTQVL-QLQDTITTLTQKLTTAHRKEAENEALL 236
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  473 AKKKTLEfelEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSReLRIAEIT-HLQQQLQESQQMLGRLIPEKQILndq 551
Cdd:pfam07888  237 EELRSLQ---ERLNASERKVEGLGEELSSMAAQRDRTQAELHQAR-LQAAQLTlQLADASLALREGRARWAQERETL--- 309
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  552 lkqvQQNS-LHRDSLVTLKRALEAKELARQHLRDQLDEVEKETRsklQEIDIFNNQLKELReihnkQQLQKQKSmeAERL 630
Cdd:pfam07888  310 ----QQSAeADKDRIEKLSAELQRLEERLQEERMEREKLEVELG---REKDCNRVQLSESR-----RELQELKA--SLRV 375
                          330       340       350       360
                   ....*....|....*....|....*....|....*....|....*
gi 1034627469  631 KQKEQERkiIELEKQ------KEEAQRRAQERDKQWLEHVQQEDE 669
Cdd:pfam07888  376 AQKEKEQ--LQAEKQelleyiRQLEQRLETVADAKWSEAALTSTE 418
SH3_Nck1_3 cd11904
Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a ...
1009-1055 4.75e-04

Third Src Homology 3 domain of Nck1 adaptor protein; Nck1 (also called Nckalpha) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds and activates RasGAP, resulting in the downregulation of Ras. It is also involved in the signaling of endothilin-mediated inhibition of cell migration. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212837 [Multi-domain]  Cd Length: 57  Bit Score: 39.63  E-value: 4.75e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK---DGDWWTGTVGD-KAGVFPSNYV 1055
Cdd:cd11904      5 ALYPFSSSNDEELNFEKGEVMDVIEKpenDPEWWKCRKANgQVGLVPKNYV 55
Myosin_tail_1 pfam01576
Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and ...
326-707 4.79e-04

Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and four light chains it is a fundamental contractile protein found in all eukaryote cell types. This family consists of the coiled-coil myosin heavy chain tail region. The coiled-coil is composed of the tail from two molecules of myosin. These can then assemble into the macromolecular thick filament. The coiled-coil region provides the structural backbone the thick filament.


Pssm-ID: 460256 [Multi-domain]  Cd Length: 1081  Bit Score: 45.17  E-value: 4.79e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  326 DQRLPEEpvlEDEQQ--QLEKklpVTFEDKKREnFERGNLELEKRRQALLEQQRKEQERLAQLER--AEQERKER----- 396
Cdd:pfam01576  109 EEQLDEE---EAARQklQLEK---VTTEAKIKK-LEEDILLLEDQNSKLSKERKLLEERISEFTSnlAEEEEKAKslskl 181
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  397 ------------ERQEQERKRQLELEK---QLEKQRELERQREEERRKEIERREA--AKRELERQRQLewerNRRQELLN 459
Cdd:pfam01576  182 knkheamisdleERLKKEEKGRQELEKakrKLEGESTDLQEQIAELQAQIAELRAqlAKKEEELQAAL----ARLEEETA 257
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  460 QRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEIE----STNKSRELRI---AEITHLQQQLQ 532
Cdd:pfam01576  258 QKNNALKKIRELEAQISELQEDLESERAARNKAEKQRRDLGEELEALKTELEdtldTTAAQQELRSkreQEVTELKKALE 337
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  533 ESQQMLGRLIPEKQI--------LNDQLKQVQQNslhRDSLVTLKRALEA--KELA----------------RQHLRDQL 586
Cdd:pfam01576  338 EETRSHEAQLQEMRQkhtqaleeLTEQLEQAKRN---KANLEKAKQALESenAELQaelrtlqqakqdsehkRKKLEGQL 414
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  587 DEVE-------------KETRSKLQ-EIDIFNNQLKELR---------------EIHNKQQL----QKQKSMEAERLKQK 633
Cdd:pfam01576  415 QELQarlseserqraelAEKLSKLQsELESVSSLLNEAEgkniklskdvsslesQLQDTQELlqeeTRQKLNLSTRLRQL 494
                          410       420       430       440       450       460       470
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  634 EQERKIIELEKQKEEAQRRAQER-----DKQWLEHVQQEDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGR 707
Cdd:pfam01576  495 EDERNSLQEQLEEEEEAKRNVERqlstlQAQLSDMKKKLEEDAGTLEALEEGKKRLQRELEALTQQLEEKAAAYDKLEK 573
SH3_UBASH3 cd11791
Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing proteins, also called ...
1157-1209 4.79e-04

Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing proteins, also called TULA (T cell Ubiquitin LigAnd) family of proteins; UBASH3 or TULA proteins are also referred to as Suppressor of T cell receptor Signaling (STS) proteins. They contain an N-terminal UBA domain, a central SH3 domain, and a C-terminal histidine phosphatase domain. They bind c-Cbl through the SH3 domain and to ubiquitin via UBA. In some vertebrates, there are two TULA family proteins, called UBASH3A (also called TULA or STS-2) and UBASH3B (also called TULA-2 or STS-1), which show partly overlapping as well as distinct functions. UBASH3B is widely expressed while UBASH3A is only found in lymphoid cells. UBASH3A facilitates apoptosis induced in T cells through its interaction with the apoptosis-inducing factor AIF. UBASH3B is an active phosphatase while UBASH3A is not. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212725 [Multi-domain]  Cd Length: 59  Bit Score: 39.98  E-value: 4.79e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469 1157 VCQVIgmYDYTAQNDDELAFNKGQIINV----LNKEDPDWWKG--EVNGQVGLFPSNYV 1209
Cdd:cd11791      1 VLRVL--YPYTPQEEDELELVPGDYIYVspeeLDSSSDGWVEGtsWLTGCSGLLPENYT 57
SH3_Cortactin cd11959
Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src ...
1078-1135 4.89e-04

Src homology 3 domain of Cortactin; Cortactin was originally identified as a substrate of Src kinase. It is an actin regulatory protein that binds to the Arp2/3 complex and stabilizes branched actin filaments. It is involved in cellular processes that affect cell motility, adhesion, migration, endocytosis, and invasion. It is expressed ubiquitously except in hematopoietic cells, where the homolog hematopoietic lineage cell-specific 1 (HS1) is expressed instead. Cortactin contains an N-terminal acidic domain, several copies of a repeat domain found in cortactin and HS1, a proline-rich region, and a C-terminal SH3 domain. The N-terminal region interacts with the Arp2/3 complex and F-actin, and is crucial in regulating branched actin assembly. Cortactin also serves as a scaffold and provides a bridge to the actin cytoskeleton for membrane trafficking and signaling proteins that bind to its SH3 domain. Binding partners for the SH3 domain of cortactin include dynamin2, N-WASp, MIM, FGD1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212892 [Multi-domain]  Cd Length: 53  Bit Score: 39.71  E-value: 4.89e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1078 IAQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGElqARGkkrQIGWFPANYVKL 1135
Cdd:cd11959      1 TAVALYDYQAADDDEISFDPDDIITNIEMIDEGWWRGV--CRG---KYGLFPANYVEL 53
SH3_Tks_1 cd12015
First Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
1081-1132 4.93e-04

First Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the first SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212948  Cd Length: 53  Bit Score: 39.71  E-value: 4.93e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPGGWW----EGELqargkkrqiGWFPANY 1132
Cdd:cd12015      4 VVADYKKQQPNEISLRAGDVVDVIEKNENGWWfvslEDEQ---------GWVPATY 50
SH3_srGAP4 cd11956
Src homology 3 domain of Slit-Robo GTPase Activating Protein 4; srGAP4, also called ARHGAP4, ...
916-968 5.04e-04

Src homology 3 domain of Slit-Robo GTPase Activating Protein 4; srGAP4, also called ARHGAP4, is highly expressed in hematopoietic cells and may play a role in lymphocyte differentiation. It is able to stimulate the GTPase activity of Rac1, Cdc42, and RhoA. In the nervous system, srGAP4 has been detected in differentiating neurites and may be involved in axon and dendritic growth. srGAPs are Rho GAPs that interact with Robo1, the transmembrane receptor of Slit proteins. Slit proteins are secreted proteins that control axon guidance and the migration of neurons and leukocytes. srGAPs contain an N-terminal F-BAR domain, a Rho GAP domain, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212889 [Multi-domain]  Cd Length: 55  Bit Score: 39.82  E-value: 5.04e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  916 LQAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11956      2 VEAVACFDYTGRTAQELSFKRGDVLLLHSKASSdWWRGEHNGMRGLIPHKYISV 55
SH3_iASPP cd11952
Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP); iASPP, also called ...
920-968 5.05e-04

Src Homology 3 (SH3) domain of Inhibitor of ASPP protein (iASPP); iASPP, also called RelA-associated inhibitor (RAI), is an oncoprotein that inhibits the apoptotic transactivation potential of p53. It is upregulated in human breast cancers expressing wild-type p53, in acute leukemias regardless of the p53 mutation status, as well as in ovarian cancer where it is associated with poor patient outcome and chemoresistance. iASPP is also a binding partner and negative regulator of p65RelA, which promotes cell proliferation and inhibits apoptosis; p65RelA has the opposite effect on cell growth compared to the p53 family. It contains a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain at its C-terminal half. The SH3 domain and the ANK repeats of iASPP contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212885 [Multi-domain]  Cd Length: 56  Bit Score: 39.53  E-value: 5.05e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLE---QQDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11952      5 ALWDYSAEFPDELSFKEGDMVTVLRkdgEGTDWWWASLCGREGYVPRNYFGL 56
SH3_ephexin1 cd11939
Src homology 3 domain of the Rho guanine nucleotide exchange factor, ephexin-1 (also called ...
1159-1210 5.07e-04

Src homology 3 domain of the Rho guanine nucleotide exchange factor, ephexin-1 (also called NGEF or ARHGEF27); Ephexin-1, also called NGEF (neuronal GEF) or ARHGEF27, activates RhoA, Tac1, and Cdc42 by exchanging bound GDP for free GTP. It is expressed mainly in the brain in a region associated with movement control. It regulates the stability of postsynaptic acetylcholine receptor (AChR) clusters and thus, plays a critical role in the maturation and neurotransmission of neuromuscular junctions. Ephexin-1 directly interacts with the ephrin receptor EphA4 and their coexpression enhances the ability of ephexin-1 to activate RhoA. It is required for normal axon growth and EphA-induced growth cone collapse. Ephexin-1 contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212872 [Multi-domain]  Cd Length: 55  Bit Score: 39.54  E-value: 5.07e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEV--NGQVGLFPSNYVK 1210
Cdd:cd11939      1 QVQCVHPYVSQEPDELSLELADVLNILDKTDDGWIFGERlhDQERGWFPSSVVE 54
SH3_Abp1_eu cd11960
Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like ...
1079-1135 5.28e-04

Src homology 3 domain of eumetazoan Actin-binding protein 1; Abp1, also called drebrin-like protein, is an adaptor protein that functions in receptor-mediated endocytosis and vesicle trafficking. It contains an N-terminal actin-binding module, the actin-depolymerizing factor (ADF) homology domain, a helical domain, and a C-terminal SH3 domain. Mammalian Abp1, unlike yeast Abp1, does not contain an acidic domain that interacts with the Arp2/3 complex. It regulates actin dynamics indirectly by interacting with dynamin and WASP family proteins. Abp1 deficiency causes abnormal organ structure and function of the spleen, heart, and lung of mice. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212893 [Multi-domain]  Cd Length: 54  Bit Score: 39.69  E-value: 5.28e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGelqaRGKKRQIGWFPANYVKL 1135
Cdd:cd11960      2 ARALYDYQAADDTEISFDPGDIITDIEQIDEGWWRG----TGPDGTYGLFPANYVEL 54
SH3_ASPP cd11807
Src homology 3 domain of Apoptosis Stimulating of p53 proteins (ASPP); The ASPP family of ...
917-968 5.29e-04

Src homology 3 domain of Apoptosis Stimulating of p53 proteins (ASPP); The ASPP family of proteins bind to important regulators of apoptosis (p53, Bcl-2, and RelA) and cell growth (APCL, PP1). They share similarity at their C-termini, where they harbor a proline-rich region, four ankyrin (ANK) repeats, and an SH3 domain. Vertebrates contain three members of the family: ASPP1, ASPP2, and iASPP. ASPP1 and ASPP2 activate the apoptotic function of the p53 family of tumor suppressors (p53, p63, and p73), while iASPP is an oncoprotein that specifically inhibits p53-induced apoptosis. The expression of ASPP proteins is altered in tumors; ASPP1 and ASPP2 are downregulated whereas iASPP is upregulated is some cancer types. ASPP proteins also bind and regulate protein phosphatase 1 (PP1), and this binding is competitive with p53 binding. The SH3 domain and the ANK repeats of ASPP contribute to the p53 binding site; they bind to the DNA binding domain of p53. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212741 [Multi-domain]  Cd Length: 57  Bit Score: 39.67  E-value: 5.29e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVL----EQQDMWWFGEVQGQKGWFPKSYVKL 968
Cdd:cd11807      2 VVYALFDYEAENGDELSFREGDELTVLrkgdDDETEWWWARLNDKEGYVPRNLLGL 57
SH3_Nck_3 cd11767
Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain ...
1008-1055 5.41e-04

Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain of Nck, the first SH3 domain of Caenorhabditis elegans Ced-2 (Cell death abnormality protein 2), and similar domains. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. Ced-2 is a cell corpse engulfment protein that interacts with Ced-5 in a pathway that regulates the activation of Ced-10, a Rac small GTPase.


Pssm-ID: 212701 [Multi-domain]  Cd Length: 56  Bit Score: 39.60  E-value: 5.41e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKK---DGDWW-----TGTVgdkaGVFPSNYV 1055
Cdd:cd11767      3 VALYPFTGENDEELSFEKGERLEIIEKpedDPDWWkarnaLGTT----GLVPRNYV 54
SH3_ASAP2 cd11966
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
1009-1055 5.47e-04

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing protein 2; ASAP2 is also called DDEF2 (Development and Differentiation Enhancing Factor 2), AMAP2, centaurin beta-3, or PAG3. It mediates the functions of Arf GTPases vial dual mechanisms: it exhibits GTPase activating protein (GAP) activity towards class I (Arf1) and II (Arf5) Arfs; and it binds class III Arfs (GTP-Arf6) stably without GAP activity. It binds paxillin and is implicated in Fcgamma receptor-mediated phagocytosis in macrophages and in cell migration. ASAP2 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212899  Cd Length: 56  Bit Score: 39.55  E-value: 5.47e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVT-KKDGDWWTGTV-GD--KAGVFPSNYV 1055
Cdd:cd11966      4 ALYNCVADNPDELTFSEGEIIIVDgEEDKEWWIGHIdGEptRRGAFPVSFV 54
SH3_Tks_3 cd12017
Third Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
1082-1133 5.58e-04

Third Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the third SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212950  Cd Length: 53  Bit Score: 39.36  E-value: 5.58e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1082 IASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGkkrqiGWFPANYV 1133
Cdd:cd12017      5 IGEFQATIQDGISFQKGQKVEVIDKNPSGWWYVKIDGKE-----GWAPSSYI 51
CHASE3 COG5278
Extracytoplasmic sensor domain CHASE3 (specificity unknown) [Signal transduction mechanisms];
356-740 5.63e-04

Extracytoplasmic sensor domain CHASE3 (specificity unknown) [Signal transduction mechanisms];


Pssm-ID: 444089 [Multi-domain]  Cd Length: 530  Bit Score: 44.51  E-value: 5.63e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  356 ENFERGNLELEKRRQAL---LEQQRKEQERLAQLERAEQERKE------RERQEQERKRQLELEKQLEKQRELERQREEE 426
Cdd:COG5278     79 EPYEEARAEIDELLAELrslTADNPEQQARLDELEALIDQWLAeleqviALRRAGGLEAALALVRSGEGKALMDEIRARL 158
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  427 RRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRcRLTTQ 506
Cdd:COG5278    159 LLLALALAALLLAAAALLLLLLALAALLALAELLLLALARALAALLLLLLLEAELAAAAALLAAAAALAALAAL-ELLAA 237
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  507 RQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDSLVTLKRALEAKELARQHLRDQL 586
Cdd:COG5278    238 LALALALLLAALLLALLAALALAALLAAALLALAALLLALAAAAALAAAAALELAAAEALALAELELELLLAAAAAAAAA 317
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  587 DEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQQ 666
Cdd:COG5278    318 AAAAAAALAALLALALATALAAAAAALALLAALLAEAAAAAAEEAEAAAEAAAAALAGLAEVEAEGAAEAVELEVLAIAA 397
                          330       340       350       360       370       380       390
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  667 EDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGRLFHQHQEPAKPAVQAPWSTAEKGPLTISAQENV 740
Cdd:COG5278    398 AAAAAAAEAAAAAAAAAAASAAEALELAEALAEALALAEEEALALAAASSELAEAGAALALAAAEALAEELAAV 471
COG4913 COG4913
Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];
337-503 5.69e-04

Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];


Pssm-ID: 443941 [Multi-domain]  Cd Length: 1089  Bit Score: 44.91  E-value: 5.69e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  337 DEQQQLEKKLPVTFEDKKREnfergnlELEKRRQALLEQQRKEQERLAQLERAEQERKERER------------------ 398
Cdd:COG4913    272 AELEYLRAALRLWFAQRRLE-------LLEAELEELRAELARLEAELERLEARLDALREELDeleaqirgnggdrleqle 344
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  399 QEQERkrqleLEKQLEKQRELERQREEERRKEIERREAAKRELERQRQ-----LEWERNRRQELLNQRNKEQEDIVVLKA 473
Cdd:COG4913    345 REIER-----LERELEERERRRARLEALLAALGLPLPASAEEFAALRAeaaalLEALEEELEALEEALAEAEAALRDLRR 419
                          170       180       190
                   ....*....|....*....|....*....|
gi 1034627469  474 KKKTLEFELEALNDKKHQLEGKLQDIRCRL 503
Cdd:COG4913    420 ELRELEAEIASLERRKSNIPARLLALRDAL 449
SH3_SH3RF_3 cd11783
Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and ...
920-968 5.77e-04

Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212717 [Multi-domain]  Cd Length: 55  Bit Score: 39.30  E-value: 5.77e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGE--VQGQKGWFPKSYVKL 968
Cdd:cd11783      4 ALYPYKPQKPDELELRKGEMYTVTEKcQDGWFKGTslRTGQSGVFPGNYVQP 55
Mplasa_alph_rch TIGR04523
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
446-688 5.82e-04

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.


Pssm-ID: 275316 [Multi-domain]  Cd Length: 745  Bit Score: 44.63  E-value: 5.82e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  446 QLEWERNRRQELL------NQRNKE-QEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQdircrlTTQRQEIESTNKSre 518
Cdd:TIGR04523  191 KIKNKLLKLELLLsnlkkkIQKNKSlESQISELKKQNNQLKDNIEKKQQEINEKTTEIS------NTQTQLNQLKDEQ-- 262
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  519 lriaeiTHLQQQLQESQQMLGRliPEKQI--LNDQLKQVQ------QNSLHRDSLVTLKRALEAKELARQHLRDQLDEVE 590
Cdd:TIGR04523  263 ------NKIKKQLSEKQKELEQ--NNKKIkeLEKQLNQLKseisdlNNQKEQDWNKELKSELKNQEKKLEEIQNQISQNN 334
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  591 KETRSKLQEIDIFNNQL-----------KELREIHNK-QQLQKQKSMEAERLKQKEQERKIIE--LEKQKEEAQRRAQER 656
Cdd:TIGR04523  335 KIISQLNEQISQLKKELtnsesensekqRELEEKQNEiEKLKKENQSYKQEIKNLESQINDLEskIQNQEKLNQQKDEQI 414
                          250       260       270
                   ....*....|....*....|....*....|....*..
gi 1034627469  657 DKQWLEHVQQEDEHQRPRKLHEEEK-----LKREESV 688
Cdd:TIGR04523  415 KKLQQEKELLEKEIERLKETIIKNNseikdLTNQDSV 451
SH3_CRK_N cd11758
N-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor ...
1005-1055 5.84e-04

N-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor proteins consists of SH2 and SH3 domains, which bind tyrosine-phosphorylated peptides and proline-rich motifs, respectively. They function downstream of protein tyrosine kinases in many signaling pathways started by various extracellular signals, including growth and differentiation factors. Cellular CRK (c-CRK) contains a single SH2 domain, followed by N-terminal and C-terminal SH3 domains. It is involved in the regulation of many cellular processes including cell growth, motility, adhesion, and apoptosis. CRK has been implicated in the malignancy of various human cancers. The N-terminal SH3 domain of CRK binds a number of target proteins including DOCK180, C3G, SOS, and cABL. The CRK family includes two alternatively spliced protein forms, CRKI and CRKII, that are expressed by the CRK gene, and the CRK-like (CRKL) protein, which is expressed by a distinct gene (CRKL). SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212692 [Multi-domain]  Cd Length: 55  Bit Score: 39.27  E-value: 5.84e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1005 EEFIAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGD-KAGVFPSNYV 1055
Cdd:cd11758      1 EYVRALFDFPGNDDEDLPFKKGEILTVIRKPEEqWWNARNSEgKTGMIPVPYV 53
SH3_Endophilin_B2 cd11944
Src homology 3 domain of Endophilin-B2; Endophilin-B2, also called SH3GLB2 (SH3-domain ...
1163-1211 5.85e-04

Src homology 3 domain of Endophilin-B2; Endophilin-B2, also called SH3GLB2 (SH3-domain GRB2-like endophilin B2), is a cytoplasmic protein that interacts with the apoptosis inducer Bax. It is overexpressed in prostate cancer metastasis and has been identified as a cancer antigen with potential utility in immunotherapy. Endophilins play roles in synaptic vesicle formation, virus budding, mitochondrial morphology maintenance, receptor-mediated endocytosis inhibition, and endosomal sorting. They contain an N-terminal N-BAR domain (BAR domain with an additional N-terminal amphipathic helix), followed by a variable region containing proline clusters, and a C-terminal SH3 domain. Endophilin-B2 forms homo- and heterodimers (with endophilin-B1) through its BAR domain. The related protein endophilin-B1 interacts with amphiphysin 1 and dynamin 1 through its SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212877  Cd Length: 55  Bit Score: 39.59  E-value: 5.85e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINV--LNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11944      5 LYDYEAADSSELALLADELITVysLPGMDPDWLIGERGNQKGKVPVTYLEL 55
SH3_SGSM3 cd11813
Src Homology 3 domain of Small G protein Signaling Modulator 3; SGSM3 is also called ...
746-802 5.96e-04

Src Homology 3 domain of Small G protein Signaling Modulator 3; SGSM3 is also called Merlin-associated protein (MAP), RUN and SH3 domain-containing protein (RUSC3), RUN and TBC1 domain-containing protein 3 (RUTBC3), Rab GTPase-activating protein 5 (RabGAP5), or Rab GAP-like protein (RabGAPLP). It is expressed ubiquitously and functions as a regulator of small G protein RAP- and RAB-mediated neuronal signaling. It is involved in modulating NGF-mediated neurite outgrowth and differentiation. It also interacts with the tumor suppressor merlin and may play a role in the merlin-associated suppression of cell growth. SGSM3 contains TBC, SH3, and RUN domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212747  Cd Length: 53  Bit Score: 39.40  E-value: 5.96e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKgewvdeSQTGEPGWLGgELKGKTGWFPANYAE 802
Cdd:cd11813      3 KALLDFERHDDDELGFRKNDIITII------SQKDEHCWVG-ELNGLRGWFPAKFVE 52
SMC_N pfam02463
RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The ...
331-651 6.15e-04

RecF/RecN/SMC N terminal domain; This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. The eukaryotic SMC proteins form two kind of heterodimers: the SMC1/SMC3 and the SMC2/SMC4 types. These heterodimers constitute an essential part of higher order complexes, which are involved in chromatin and DNA dynamics. This family also includes the RecF and RecN proteins that are involved in DNA metabolism and recombination.


Pssm-ID: 426784 [Multi-domain]  Cd Length: 1161  Bit Score: 44.96  E-value: 6.15e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  331 EEPVLEDEQQQLEKKLPVTFEDKKRENfERGNLELEKRRQALLEQQRKEQERLAQLEraeqerKERERQEQERKRQLELE 410
Cdd:pfam02463  272 KENKEEEKEKKLQEEELKLLAKEEEEL-KSELLKLERRKVDDEEKLKESEKEKKKAE------KELKKEKEEIEELEKEL 344
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  411 KQLEKQRELERqreeerrkeierreaAKRELERQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALN--DK 488
Cdd:pfam02463  345 KELEIKREAEE---------------EEEEELEKLQEKLEQLEEELLAKKKLESERLSSAAKLKEEELELKSEEEKeaQL 409
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  489 KHQLEGKLQDIRCRLTTQRQEIESTNKSRelriaeithlqqqlqesqqmlgRLIPEKQILNDQLKQVQQNSLHRDslvtL 568
Cdd:pfam02463  410 LLELARQLEDLLKEEKKEELEILEEEEES----------------------IELKQGKLTEEKEELEKQELKLLK----D 463
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  569 KRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQkQKSMEAERLKQKEQERKIIELEKQKEE 648
Cdd:pfam02463  464 ELELKKSEDLLKETQLVKLQEQLELLLSRQKLEERSQKESKARSGLKVLLAL-IKDGVGGRIISAHGRLGDLGVAVENYK 542

                   ...
gi 1034627469  649 AQR 651
Cdd:pfam02463  543 VAI 545
CCDC66 pfam15236
Coiled-coil domain-containing protein 66; This protein family, named Coiled-coil ...
364-453 6.16e-04

Coiled-coil domain-containing protein 66; This protein family, named Coiled-coil domain-containing protein 66 (CCDC) refers to a protein domain found in eukaryotes, and is approximately 160 amino acids in length. CCDC66 protein is detected mainly in the inner segments of photoreceptors in many vertebrates including mice and humans. It has been found in dogs, that a mutation in the CCDC66 gene causes generalized progressive retinal atrophy (gPRA). This shows that the protein encoded for by this gene is vital for healthy vision and guards against photoreceptor cell degeneration. The structure of CCDC66 proteins includes a heptad repeat pattern which contains at least one coiled-coil domain. There are at least two or more alpha-helices which form a cable-like structure.


Pssm-ID: 434558 [Multi-domain]  Cd Length: 154  Bit Score: 42.09  E-value: 6.16e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  364 ELEKRRQALLE------QQRKEQERLAQLERaEQERKERERQEQERKRQLELE---------KQLEKQRELERQREEERR 428
Cdd:pfam15236   46 ERERKRQKALEhqnaikKQLEEKERQKKLEE-ERRRQEEQEEEERLRREREEEqkqfeeerrKQKEKEEAMTRKTQALLQ 124
                           90       100
                   ....*....|....*....|....*
gi 1034627469  429 KEIERREAAKRELERQRQLEWERNR 453
Cdd:pfam15236  125 AMQKAQELAQRLKQEQRIRELAEKG 149
SH3_BOI cd11886
Src Homology 3 domain of fungal BOI-like proteins; This subfamily includes the Saccharomyces ...
744-800 6.20e-04

Src Homology 3 domain of fungal BOI-like proteins; This subfamily includes the Saccharomyces cerevisiae proteins BOI1 and BOI2, and similar proteins. They contain an N-terminal SH3 domain, a Sterile alpha motif (SAM), and a Pleckstrin homology (PH) domain at the C-terminus. BOI1 and BOI2 interact with the SH3 domain of Bem1p, a protein involved in bud formation. They promote polarized cell growth and participates in the NoCut signaling pathway, which is involved in the control of cytokinesis. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212819  Cd Length: 55  Bit Score: 39.24  E-value: 6.20e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMV---KGEWVDesqtgepGW-LGGELK-GKTGWFPANY 800
Cdd:cd11886      1 LLIVIHDFNARSEDELTLKPGDKIELiedDEEFGD-------GWyLGRNLRtGETGLFPVVF 55
COG4913 COG4913
Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];
342-590 6.24e-04

Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];


Pssm-ID: 443941 [Multi-domain]  Cd Length: 1089  Bit Score: 44.91  E-value: 6.24e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  342 LEKklPVTFE--DKKRENFE-----RGNLELEKRRQALLEQQRKEQERLA----QLERAEQERKERERQEQERKRQLeLE 410
Cdd:COG4913    218 LEE--PDTFEaaDALVEHFDdleraHEALEDAREQIELLEPIRELAERYAaareRLAELEYLRAALRLWFAQRRLEL-LE 294
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  411 KQLEKqrelerqreeeRRKEIERREAAKRELERQRQLEweRNRRQELLNQRNKEQ-EDIVVLKAKKKTLEFELEALNDKK 489
Cdd:COG4913    295 AELEE-----------LRAELARLEAELERLEARLDAL--REELDELEAQIRGNGgDRLEQLEREIERLERELEERERRR 361
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  490 HQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEIThlqQQLQESQQMLGRLIPEKQILNDQLKQVQQ--NSL-HRDSLV 566
Cdd:COG4913    362 ARLEALLAALGLPLPASAEEFAALRAEAAALLEALE---EELEALEEALAEAEAALRDLRRELRELEAeiASLeRRKSNI 438
                          250       260
                   ....*....|....*....|....
gi 1034627469  567 TlKRALEAKELARQHLrdQLDEVE 590
Cdd:COG4913    439 P-ARLLALRDALAEAL--GLDEAE 459
C2B_Ferlin cd04011
C2 domain second repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and ...
1600-1685 6.35e-04

C2 domain second repeat in Ferlin; Ferlins are involved in vesicle fusion events. Ferlins and other proteins, such as Synaptotagmins, are implicated in facilitating the fusion process when cell membranes fuse together. There are six known human Ferlins: Dysferlin (Fer1L1), Otoferlin (Fer1L2), Myoferlin (Fer1L3), Fer1L4, Fer1L5, and Fer1L6. Defects in these genes can lead to a wide range of diseases including muscular dystrophy (dysferlin), deafness (otoferlin), and infertility (fer-1, fertilization factor-1). Structurally they have 6 tandem C2 domains, designated as (C2A-C2F) and a single C-terminal transmembrane domain, though there is a new study that disputes this and claims that there are actually 7 tandem C2 domains with another C2 domain inserted between C2D and C2E. In a subset of them (Dysferlin, Myoferlin, and Fer1) there is an additional conserved domain called DysF. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-II topology.


Pssm-ID: 175978 [Multi-domain]  Cd Length: 111  Bit Score: 41.02  E-value: 6.35e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1600 VNVVEGIELKpcrsHGKSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIR----DLEQEVLCITVFERDQFSPDDFL 1675
Cdd:cd04011      8 VRVIEARQLV----GGNIDPVVKVEVGGQKKYTSVKKGTNCPFYNEYFFFNFHespdELFDKIIKISVYDSRSLRSDTLI 83
                           90
                   ....*....|
gi 1034627469 1676 GRTEIRVADI 1685
Cdd:cd04011     84 GSFKLDVGTV 93
CALCOCO1 pfam07888
Calcium binding and coiled-coil domain (CALCOCO1) like; Proteins found in this family are ...
335-657 6.66e-04

Calcium binding and coiled-coil domain (CALCOCO1) like; Proteins found in this family are similar to the coiled-coil transcriptional coactivator protein coexpressed by Mus musculus (CoCoA/CALCOCO1). This protein binds to a highly conserved N-terminal domain of p160 coactivators, such as GRIP1, and thus enhances transcriptional activation by a number of nuclear receptors. CALCOCO1 has a central coiled-coil region with three leucine zipper motifs, which is required for its interaction with GRIP1 and may regulate the autonomous transcriptional activation activity of the C-terminal region.


Pssm-ID: 462303 [Multi-domain]  Cd Length: 488  Bit Score: 44.12  E-value: 6.66e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLPVTFEDKKRENFERGNLELEKRRqalLEQQRKEQERlaQLERAEQE-RKERERQEQERKRQleleKQL 413
Cdd:pfam07888   36 LEECLQERAELLQAQEAANRQREKEKERYKRDREQ---WERQRRELES--RVAELKEElRQSREKHEELEEKY----KEL 106
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  414 EKQRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKEQEDIVVlkAKKKTLEFELEALNDKKHQLE 493
Cdd:pfam07888  107 SASSEELSEEKDALLAQRAAHEARIRELEEDIKTLTQRVLERETELERMKERAKKAG--AQRKEEEAERKQLQAKLQQTE 184
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  494 GKLqdirCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQ--NSLHRdSLVTLKRA 571
Cdd:pfam07888  185 EEL----RSLSKEFQELRNSLAQRDTQVLQLQDTITTLTQKLTTAHRKEAENEALLEELRSLQErlNASER-KVEGLGEE 259
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  572 LEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEK--QKEEA 649
Cdd:pfam07888  260 LSSMAAQRDRTQAELHQARLQAAQLTLQLADASLALREGRARWAQERETLQQSAEADKDRIEKLSAELQRLEErlQEERM 339
                          330
                   ....*....|....
gi 1034627469  650 QRR------AQERD 657
Cdd:pfam07888  340 EREklevelGREKD 353
SH3_ARHGEF16_26 cd11938
Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF16 and ARHGEF26; ...
1080-1134 6.68e-04

Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF16 and ARHGEF26; ARHGEF16, also called ephexin-4, acts as a GEF for RhoG, activating it by exchanging bound GDP for free GTP. RhoG is a small GTPase that is a crucial regulator of Rac in migrating cells. ARHGEF16 interacts directly with the ephrin receptor EphA2 and mediates cell migration and invasion in breast cancer cells by activating RhoG. ARHGEF26, also called SGEF (SH3 domain-containing guanine exchange factor), also activates RhoG. It is highly expressed in liver and may play a role in regulating membrane dynamics. ARHGEF16 and ARHGEF26 contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212871  Cd Length: 55  Bit Score: 39.44  E-value: 6.68e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKrqiGWFPANYVK 1134
Cdd:cd11938      3 EIIKAYTAKQPDELSLQQADVVLVLQTESDGWYYGERLRDGER---GWFPSSCAK 54
SH3_Alpha_Spectrin cd11808
Src homology 3 domain of Alpha Spectrin; Spectrin is a major structural component of the red ...
920-967 6.78e-04

Src homology 3 domain of Alpha Spectrin; Spectrin is a major structural component of the red blood cell membrane skeleton and is important in erythropoiesis and membrane biogenesis. It is a flexible, rope-like molecule composed of two subunits, alpha and beta, which consist of many spectrin-type repeats. Alpha and beta spectrin associate to form heterodimers and tetramers; spectrin tetramer formation is critical for red cell shape and deformability. Defects in alpha spectrin have been associated with inherited hemolytic anemias including hereditary spherocytosis (HSp), hereditary elliptocytosis (HE), and hereditary pyropoikilocytosis (HPP). Alpha spectrin contains a middle SH3 domain and a C-terminal EF-hand binding motif in addition to multiple spectrin repeats. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212742 [Multi-domain]  Cd Length: 53  Bit Score: 39.39  E-value: 6.78e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQKGWFPKSYVK 967
Cdd:cd11808      4 ALYDYQEKSPREVSMKKGDILTLLNSSNKdWWKVEVNDRQGFVPAAYVK 52
SH3_SH3RF2_2 cd11932
Second Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
1009-1055 6.78e-04

Second Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the second SH3 domain, located C-terminal of the first SH3 domain at the N-terminal half, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212865  Cd Length: 57  Bit Score: 39.44  E-value: 6.78e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1009 AMYTYE-----SSEQGD-LTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11932      4 ALYNFDlkeknREESKDcLKFQKDDIITVISRvDENWAEGKLGDQVGIFPILFV 57
SH3_Myosin-I_fungi cd11858
Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent ...
745-802 6.86e-04

Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Saccharomyces cerevisiae has two myosins-I, Myo3 and Myo5, which are involved in endocytosis and the polarization of the actin cytoskeleton. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212792 [Multi-domain]  Cd Length: 55  Bit Score: 39.29  E-value: 6.86e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGW-LGGELKG-KTGWFPANYAE 802
Cdd:cd11858      2 YKALYDFAGSVANELSLKKDDIVYI-------VQKEDNGWwLAKKLDEsKEGWVPAAYLE 54
SH3_Ysc84p_like cd11842
Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the ...
744-802 6.88e-04

Src homology 3 domain of Ysc84p and similar fungal proteins; This family is composed of the Saccharomyces cerevisiae proteins, Ysc84p (also called LAS17-binding protein 4, Lsb4p) and Lsb3p, and similar fungal proteins. They contain an N-terminal SYLF domain (also called DUF500) and a C-terminal SH3 domain. Ysc84p localizes to actin patches and plays an important in actin polymerization during endocytosis. The N-terminal domain of both Ysc84p and Lsb3p can bind and bundle actin filaments. A study of the yeast SH3 domain interactome predicts that the SH3 domains of Lsb3p and Lsb4p may function as molecular hubs for the assembly of endocytic complexes. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212776 [Multi-domain]  Cd Length: 55  Bit Score: 39.33  E-value: 6.88e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMV--KGEWVDEsqtgepgWLGGELKGKTGWFPANYAE 802
Cdd:cd11842      1 KAVALYDFAGEQPGDLAFQKGDIITIlkKSDSQND-------WWTGRIGGREGIFPANYVE 54
SH3_PSTPIP1 cd11824
Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, ...
1006-1055 6.90e-04

Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, also called CD2 Binding Protein 1 (CD2BP1), is mainly expressed in hematopoietic cells. It is a binding partner of the cell surface receptor CD2 and PTP-PEST, a tyrosine phosphatase which functions in cell motility and Rac1 regulation. It also plays a role in the activation of the Wiskott-Aldrich syndrome protein (WASP), which couples actin rearrangement and T cell activation. Mutations in the gene encoding PSTPIP1 cause the autoinflammatory disorder known as PAPA (pyogenic sterile arthritis, pyoderma gangrenosum, and acne) syndrome. PSTPIP1 contains an N-terminal F-BAR domain, PEST motifs, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212758 [Multi-domain]  Cd Length: 53  Bit Score: 39.28  E-value: 6.90e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11824      1 KYSVLYDYTAQEDDELSISKGDVVAVIEKGEDgWWTVERNGQKGLVPGTYL 51
SH3_BAIAP2L2 cd11914
Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 2; ...
1080-1136 6.92e-04

Src Homology 3 domain of Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2-Like 2; BAIAP2L2 co-localizes with clathrin plaques but its function has not been determined. It contains an N-terminal IMD or Inverse-Bin/Amphiphysin/Rvs (I-BAR) domain, an SH3 domain, and a WASP homology 2 (WH2) actin-binding motif at the C-terminus. The related proteins, BAIAP2L1 and IRSp53, function as regulators of membrane dynamics and the actin cytoskeleton. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212847 [Multi-domain]  Cd Length: 59  Bit Score: 39.41  E-value: 6.92e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469 1080 QVIASYTATG-PEQLTLAPGQLILIRKKNP-GGWWEGELQarGKKRQiGWFPANYVKLL 1136
Cdd:cd11914      4 RAIVSHPAGSnPTLLRFNRGDIITVLVPEArNGWLYGKLE--GSSRQ-GWFPEAYVKAL 59
SH3_Stac3_1 cd11986
First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 ...
920-966 6.97e-04

First C-terminal Src homology 3 domain of SH3 and cysteine-rich domain-containing protein 3 (Stac3); Stac proteins are putative adaptor proteins that contain a cysteine-rich C1 domain and one or two SH3 domains at the C-terminus. There are three mammalian members (Stac1, Stac2, and Stac3) of this family. Stac1 and Stac3 contain two SH3 domains while Stac2 contains a single SH3 domain at the C-terminus. Stac1 and Stac2 have been found to be expressed differently in mature dorsal root ganglia (DRG) neurons. Stac1 is mainly expressed in peptidergic neurons while Stac2 is found in a subset of nonpeptidergic and all trkB+ neurons. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212919 [Multi-domain]  Cd Length: 53  Bit Score: 39.12  E-value: 6.97e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVL-EQQDMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11986      4 ALYRFKALEKDDLDFHPGERITVIdDSNEEWWRGKIGEKTGYFPMNFI 51
C2A_RasA2_RasA3 cd08401
C2 domain first repeat present in RasA2 and RasA3; RasA2 and RasA3 are GAP1s (GTPase ...
1598-1691 7.23e-04

C2 domain first repeat present in RasA2 and RasA3; RasA2 and RasA3 are GAP1s (GTPase activating protein 1s ), Ras-specific GAP members, which suppresses Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. RasA2 and RasA3 are both inositol 1,3,4,5-tetrakisphosphate-binding proteins and contain an N-terminal C2 domain, a Ras-GAP domain, a pleckstrin-homology (PH) domain which localizes it to the plasma membrane, and Bruton's Tyrosine Kinase (BTK) a zinc binding domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176046 [Multi-domain]  Cd Length: 121  Bit Score: 41.27  E-value: 7.23e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1598 LMVNVVEGIELKPcRSHGKS--NPYCEVTMgSQCHI--TKTIQDTLNPKWNSNCQFFI-RDLEQevLCITVFERDQFSPD 1672
Cdd:cd08401      2 LKIKIGEAKNLPP-RSGPNKmrDCYCTVNL-DQEEVfrTKTVEKSLCPFFGEDFYFEIpRTFRH--LSFYIYDRDVLRRD 77
                           90
                   ....*....|....*....
gi 1034627469 1673 DFLGRTEIRVADIKKDQGS 1691
Cdd:cd08401     78 SVIGKVAIKKEDLHKYYGK 96
SH3_DNMBP_N4 cd11797
Fourth N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or ...
744-797 7.37e-04

Fourth N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin and key regulatory proteins of the actin cytoskeleton. It plays an important role in regulating cell junction configuration. The four N-terminal SH3 domains of DNMBP bind the GTPase dynamin, which plays an important role in the fission of endocytic vesicles. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212731  Cd Length: 50  Bit Score: 38.94  E-value: 7.37e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKGewvdesqTGEPGWLGGELKGKTGWFP 797
Cdd:cd11797      1 YGVALYRFQALEPNELDFEVGDRIRIIA-------TLEDGWLEGELKGRRGIFP 47
SH3_Intersectin2_2 cd11990
Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
1079-1135 7.40e-04

Second Src homology 3 domain (or SH3B) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The second SH3 domain (or SH3B) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212923 [Multi-domain]  Cd Length: 52  Bit Score: 39.25  E-value: 7.40e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGgWWEGELqaRGKKrqiGWFPANYVKL 1135
Cdd:cd11990      2 AQALCSWTAKKDNHLNFSKNDIITVLEQQEN-WWFGEV--HGGR---GWFPKSYVKL 52
SH3_CIP4-like cd11911
Src Homology 3 domain of Cdc42-Interacting Protein 4; This subfamily is composed of ...
1159-1211 7.41e-04

Src Homology 3 domain of Cdc42-Interacting Protein 4; This subfamily is composed of Cdc42-Interacting Protein 4 (CIP4), Formin Binding Protein 17 (FBP17), FormiN Binding Protein 1-Like (FNBP1L), and similar proteins. CIP4 and FNBP1L are Cdc42 effectors that bind Wiskott-Aldrich syndrome protein (WASP) and function in endocytosis. CIP4 and FBP17 bind to the Fas ligand and may be implicated in the inflammatory response. CIP4 may also play a role in phagocytosis. It functions downstream of Cdc42 in PDGF-dependent actin reorganization and cell migration, and also regulates the activity of PDGFRbeta. It uses Src as a substrate in regulating the invasiveness of breast tumor cells. CIP4 may also play a role in the pathogenesis of Huntington's disease. Members of this subfamily typically contain an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs) domain, a central Cdc42-binding HR1 domain, and a C-terminal SH3 domain. The SH3 domain of CIP4 associates with Gapex-5, a Rab31 GEF. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212844 [Multi-domain]  Cd Length: 55  Bit Score: 39.17  E-value: 7.41e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWW----KGevNGQVGLFPSNYVKL 1211
Cdd:cd11911      1 TCTALYDFDGTSEGTLSMEEGEILLVLEEDGGDGWtrvrKN--NGDEGYVPTSYIEV 55
DUF3584 pfam12128
Protein of unknown function (DUF3584); This protein is found in bacteria and eukaryotes. ...
331-676 7.49e-04

Protein of unknown function (DUF3584); This protein is found in bacteria and eukaryotes. Proteins in this family are typically between 943 to 1234 amino acids in length. This family contains a P-loop motif suggesting it is a nucleotide binding protein. It may be involved in replication.


Pssm-ID: 432349 [Multi-domain]  Cd Length: 1191  Bit Score: 44.44  E-value: 7.49e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  331 EEPVLEDEQQQLEKKLPVTFE--DKKRENFERGNLELEKRRQALLEQQRKE----------QERLAQL--------ERAE 390
Cdd:pfam12128  591 DVPEWAASEEELRERLDKAEEalQSAREKQAAAEEQLVQANGELEKASREEtfartalknaRLDLRRLfdekqsekDKKN 670
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  391 QERKERERQEQERKRQLELE-KQLEKQRELERQREEERrkeierreaaKRELERQRQLEWernrrQELLNQRNKEQEDIV 469
Cdd:pfam12128  671 KALAERKDSANERLNSLEAQlKQLDKKHQAWLEEQKEQ----------KREARTEKQAYW-----QVVEGALDAQLALLK 735
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  470 VLKAKKKT-LEFELEALN-DKKHQLEGKLQD--IRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQEsqqmlgRLIPEK 545
Cdd:pfam12128  736 AAIAARRSgAKAELKALEtWYKRDLASLGVDpdVIAKLKREIRTLERKIERIAVRRQEVLRYFDWYQE------TWLQRR 809
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  546 QILNDQLKQVQQNSLH-RDSLVTL----KRALEAKELARQHLRDQLDEVEKEtrskLQEIDIFNNQLKELREIHNKQQLQ 620
Cdd:pfam12128  810 PRLATQLSNIERAISElQQQLARLiadtKLRRAKLEMERKASEKQQVRLSEN----LRGLRCEMSKLATLKEDANSEQAQ 885
                          330       340       350       360       370       380
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  621 KQKSmeaERLKQKEQERKIIELE----KQKEE------AQRRAQERDKQWLEHvqQEDEHQRPRKL 676
Cdd:pfam12128  886 GSIG---ERLAQLEDLKLKRDYLsesvKKYVEhfknviADHSGSGLAETWESL--REEDHYQNDKG 946
Borrelia_P83 pfam05262
Borrelia P83/100 protein; This family consists of several Borrelia P83/P100 antigen proteins.
541-704 7.60e-04

Borrelia P83/100 protein; This family consists of several Borrelia P83/P100 antigen proteins.


Pssm-ID: 114011 [Multi-domain]  Cd Length: 489  Bit Score: 44.22  E-value: 7.60e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  541 LIP-EKQILNDQLKQVQQNSLHRDSLVtlKRALEAKELARQHLRDQLD--EVEKETRSKLQEIDIFNNQLKELREIHNKQ 617
Cdd:pfam05262  157 VIPlKKNILSGNVSDVDTDSISDKKVV--EALREDNEKGVNFRRDMTDlkERESQEDAKRAQQLKEELDKKQIDADKAQQ 234
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  618 QLQ-KQKSMEAER--LKQKEQERKIIELEKQKEEAQ--RRAQERDKQWLEHVQQE----DEHQRPRKLHEEEKLKREesv 688
Cdd:pfam05262  235 KADfAQDNADKQRdeVRQKQQEAKNLPKPADTSSPKedKQVAENQKREIEKAQIEikknDEEALKAKDHKAFDLKQE--- 311
                          170
                   ....*....|....*.
gi 1034627469  689 kkkdgEEKGKQEAQDK 704
Cdd:pfam05262  312 -----SKASEKEAEDK 322
SH3_CRK_C cd11759
C-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor ...
1076-1135 7.65e-04

C-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor proteins consists of SH2 and SH3 domains, which bind tyrosine-phosphorylated peptides and proline-rich motifs, respectively. They function downstream of protein tyrosine kinases in many signaling pathways started by various extracellular signals, including growth and differentiation factors. Cellular CRK (c-CRK) contains a single SH2 domain, followed by N-terminal and C-terminal SH3 domains. It is involved in the regulation of many cellular processes including cell growth, motility, adhesion, and apoptosis. CRK has been implicated in the malignancy of various human cancers. The C-terminal SH3 domain of CRK has not been shown to bind any target protein; it acts as a negative regulator of CRK function by stabilizing a structure that inhibits the access by target proteins to the N-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212693 [Multi-domain]  Cd Length: 57  Bit Score: 39.01  E-value: 7.65e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1076 PEIAQVIASY--TATGPEQLTLAPGQLILIRKKNPGGWWEGELqaRGKKrqiGWFPANYVKL 1135
Cdd:cd11759      1 PAYARVIQKRvpNAYDKTALALEVGDLVKVTKINVSGQWEGEL--NGKV---GHFPFTHVEL 57
SH3_UBASH3A cd11937
Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing protein A; UBASH3A is ...
746-803 7.66e-04

Src homology 3 domain of Ubiquitin-associated and SH3 domain-containing protein A; UBASH3A is also called Cbl-Interacting Protein 4 (CLIP4), T cell Ubiquitin LigAnd (TULA), or T cell receptor Signaling (STS)-2. It is only found in lymphoid cells and exhibits weak phosphatase activity. UBASH3A facilitates T cell-induced apoptosis through interaction with the apoptosis-inducing factor AIF. It is involved in regulating the level of phosphorylation of the zeta-associated protein (ZAP)-70 tyrosine kinase. TULA proteins contain an N-terminal UBA domain, a central SH3 domain, and a C-terminal histidine phosphatase domain. They bind c-Cbl through the SH3 domain and to ubiquitin via UBA. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212870 [Multi-domain]  Cd Length: 60  Bit Score: 39.23  E-value: 7.66e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVmvkgeWVDESQTGE--PGWLGG--ELKGKTGWFPANYAEK 803
Cdd:cd11937      4 RALFQYKPQNIDELMLSPGDYI-----FVDPTQQSEasEGWVIGisHRTGCRGFLPENYTER 60
SH3_FCHSD_2 cd11762
Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
744-798 7.75e-04

Second Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212696 [Multi-domain]  Cd Length: 57  Bit Score: 39.30  E-value: 7.75e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKGEwvdESQTGEPGWLGGELKGKTGWFPA 798
Cdd:cd11762      1 LVRALYDYEAQSDEELSFPEGAIIRILRK---DDNGVDDGWWEGEFNGRVGVFPS 52
PRK12705 PRK12705
hypothetical protein; Provisional
339-484 7.80e-04

hypothetical protein; Provisional


Pssm-ID: 237178 [Multi-domain]  Cd Length: 508  Bit Score: 43.93  E-value: 7.80e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  339 QQQLEKKLPVTFEDKKRENfERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKER---ERQEQERKRQLELEKQLEK 415
Cdd:PRK12705    28 RQRLAKEAERILQEAQKEA-EEKLEAALLEAKELLLRERNQQRQEARREREELQREEErlvQKEEQLDARAEKLDNLENQ 106
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  416 QRELERQREEERRKEIERREAAKRELERQRQLEWERnRRQELLNQRNKEQEDIVVLKAKKKTLEFELEA 484
Cdd:PRK12705   107 LEEREKALSARELELEELEKQLDNELYRVAGLTPEQ-ARKLLLKLLDAELEEEKAQRVKKIEEEADLEA 174
ClassIIa_HDAC9_Gln-rich-N cd10163
Glutamine-rich N-terminal helical domain of HDAC9, a Class IIa histone deacetylase; This ...
326-407 7.86e-04

Glutamine-rich N-terminal helical domain of HDAC9, a Class IIa histone deacetylase; This family consists of the glutamine-rich domain of histone deacetylase 9 (HDAC9). It belongs to a superfamily that consists of the glutamine-rich N-terminal helical extension to certain Class IIa histone deacetylases (HDACs), including HDAC4, HDAC5 and HDCA9; it is missing from HDAC7. This domain confers responsiveness to calcium signals and mediates interactions with transcription factors and cofactors, and it is able to repress transcription independently of the HDAC C-terminal, zinc-dependent catalytic domain. It has many intra- and inter-helical interactions which are possibly involved in reversible assembly and disassembly of proteins. HDACs regulate diverse cellular processes through enzymatic deacetylation of histone as well as non-histone proteins, in particular deacetylating N(6)-acetyl-lysine residues.


Pssm-ID: 197399 [Multi-domain]  Cd Length: 90  Bit Score: 40.12  E-value: 7.86e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  326 DQRLPEEPVLEDEQQQLEKKLPVTFEDKKRENFER---GNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQE 402
Cdd:cd10163      6 EKQLQQELLLIQQQQQIQKQLLIAEFQKQHENLTRqhqAQLQEHLKLQQELLAMKQQQELLEKEQKLEQQRQEQELERHR 85

                   ....*
gi 1034627469  403 RKRQL 407
Cdd:cd10163     86 REQQL 90
SH3_Shank3 cd11984
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also ...
1161-1209 8.11e-04

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 3; Shank3, also called ProSAP2 (Proline-rich synapse-associated protein 2), is widely expressed. It plays a role in the formation of dendritic spines and synapses. Haploinsufficiency of the Shank3 gene causes the 22q13 deletion/Phelan-McDermid syndrome, and variants of Shank3 have been implicated in autism spectrum disorder, schizophrenia, and intellectual disability. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212917  Cd Length: 52  Bit Score: 39.16  E-value: 8.11e-04
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1161 IGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11984      4 IAVKAYSPQGEGEIQLNRGERVKVLSIGEGGFWEGTVKGRTGWFPADCV 52
SH3_GRAP2_N cd11947
N-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS ...
1006-1055 8.19e-04

N-terminal Src homology 3 domain of GRB2-related adaptor protein 2; GRAP2 is also called GADS (GRB2-related adapter downstream of Shc), GrpL, GRB2L, Mona, or GRID (Grb2-related protein with insert domain). It is expressed specifically in the hematopoietic system. It plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. It also have roles in antigen-receptor and tyrosine kinase mediated signaling. GRAP2 is unique from other GRB2-like adaptor proteins in that it can be regulated by caspase cleavage. It contains an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. The N-terminal SH3 domain of the related protein GRB2 binds to Sos and Sos-derived proline-rich peptides. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212880 [Multi-domain]  Cd Length: 52  Bit Score: 39.01  E-value: 8.19e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKKDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11947      1 EARGKFDFTASGEDELSFKKGDVLKILSSDDIWFKAELNGEEGYVPKNFV 50
GBP_C pfam02841
Guanylate-binding protein, C-terminal domain; Transcription of the anti-viral ...
563-655 8.48e-04

Guanylate-binding protein, C-terminal domain; Transcription of the anti-viral guanylate-binding protein (GBP) is induced by interferon-gamma during macrophage induction. This family contains GBP1 and GPB2, both GTPases capable of binding GTP, GDP and GMP.


Pssm-ID: 460721 [Multi-domain]  Cd Length: 297  Bit Score: 43.43  E-value: 8.48e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  563 DSLVTLKRALEAKELARQHLRDQLDEVEKETRSkLQEIDIFNNQLKELREIHNKQQL-QKQKSMEAER----------LK 631
Cdd:pfam02841  190 EAILQTDQALTAKEKAIEAERAKAEAAEAEQEL-LREKQKEEEQMMEAQERSYQEHVkQLIEKMEAEReqllaeqermLE 268
                           90       100
                   ....*....|....*....|....
gi 1034627469  632 QKEQERKIIELEKQKEEAQRRAQE 655
Cdd:pfam02841  269 HKLQEQEELLKEGFKTEAESLQKE 292
SH3_MPP2 cd12037
Src Homology 3 domain of Membrane Protein, Palmitoylated 2 (or MAGUK p55 subfamily member 2); ...
1164-1206 8.97e-04

Src Homology 3 domain of Membrane Protein, Palmitoylated 2 (or MAGUK p55 subfamily member 2); MPP2 is a scaffolding protein that interacts with the non-receptor tyrosine kinase c-Src in epithelial cells to negatively regulate its activity and morphological function. It is one of seven vertebrate homologs of the Drosophila Stardust protein, which is required in establishing cell polarity, and it contains two L27 domains followed by the core of three domains characteristic of MAGUK (membrane-associated guanylate kinase) proteins: PDZ, SH3, and guanylate kinase (GuK). In addition, it also contains the Hook (Protein 4.1 Binding) motif in between the SH3 and GuK domains. The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212970  Cd Length: 59  Bit Score: 39.16  E-value: 8.97e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1164 YDYTAQNDD-------ELAFNKGQIINVLNKEDPDWWKG--EVNGQVGLFPS 1206
Cdd:cd12037      6 FDYDPSSDSlipckeaGLKFRAGDLLQIVNQEDPNWWQAchVEGGSAGLIPS 57
SH3_Nck_3 cd11767
Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain ...
918-968 9.02e-04

Third Src Homology 3 domain of Nck adaptor proteins; This group contains the third SH3 domain of Nck, the first SH3 domain of Caenorhabditis elegans Ced-2 (Cell death abnormality protein 2), and similar domains. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4), which show partly overlapping functions but also bind distinct targets. Their SH3 domains are involved in recruiting downstream effector molecules, such as the N-WASP/Arp2/3 complex, which when activated induces actin polymerization that results in the production of pedestals, or protrusions of the plasma membrane. The third SH3 domain of Nck appears to prefer ligands with a PxAPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. Ced-2 is a cell corpse engulfment protein that interacts with Ced-5 in a pathway that regulates the activation of Ced-10, a Rac small GTPase.


Pssm-ID: 212701 [Multi-domain]  Cd Length: 56  Bit Score: 38.83  E-value: 9.02e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQ---QDMWWFGE-VQGQKGWFPKSYVKL 968
Cdd:cd11767      2 VVALYPFTGENDEELSFEKGERLEIIEKpedDPDWWKARnALGTTGLVPRNYVEV 56
SMC_prok_A TIGR02169
chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of ...
547-717 9.20e-04

chromosome segregation protein SMC, primarily archaeal type; SMC (structural maintenance of chromosomes) proteins bind DNA and act in organizing and segregating chromosomes for partition. SMC proteins are found in bacteria, archaea, and eukaryotes. It is found in a single copy and is homodimeric in prokaryotes, but six paralogs (excluded from this family) are found in eukarotes, where SMC proteins are heterodimeric. This family represents the SMC protein of archaea and a few bacteria (Aquifex, Synechocystis, etc); the SMC of other bacteria is described by TIGR02168. The N- and C-terminal domains of this protein are well conserved, but the central hinge region is skewed in composition and highly divergent. [Cellular processes, Cell division, DNA metabolism, Chromosome-associated proteins]


Pssm-ID: 274009 [Multi-domain]  Cd Length: 1164  Bit Score: 44.29  E-value: 9.20e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  547 ILNDQLKQVQQNSLHR---DSLVTLKRALEAKELA---------RQHLRDQLDEVEKetrsklqEIDIFNNQLKELR-EI 613
Cdd:TIGR02169  195 EKRQQLERLRREREKAeryQALLKEKREYEGYELLkekealerqKEAIERQLASLEE-------ELEKLTEEISELEkRL 267
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  614 HNKQQLQKQKSMEAERLKQKEQ---ERKIIELEKQKEEAQR--RAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKR--EE 686
Cdd:TIGR02169  268 EEIEQLLEELNKKIKDLGEEEQlrvKEKIGELEAEIASLERsiAEKERELEDAEERLAKLEAEIDKLLAEIEELEReiEE 347
                          170       180       190
                   ....*....|....*....|....*....|.
gi 1034627469  687 SVKKKDGEEKGKQEAQDKLGRLFHQHQEPAK 717
Cdd:TIGR02169  348 ERKRRDKLTEEYAELKEELEDLRAELEEVDK 378
EnvC COG4942
Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, ...
484-707 9.48e-04

Septal ring factor EnvC, activator of murein hydrolases AmiA and AmiB [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 443969 [Multi-domain]  Cd Length: 377  Bit Score: 43.60  E-value: 9.48e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  484 ALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLqqqlqesqqmlgrlipEKQI--LNDQLKQVQQNslh 561
Cdd:COG4942     17 AQADAAAEAEAELEQLQQEIAELEKELAALKKEEKALLKQLAAL----------------ERRIaaLARRIRALEQE--- 77
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  562 rdsLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIE 641
Cdd:COG4942     78 ---LAALEAELAELEKEIAELRAELEAQKEELAELLRALYRLGRQPPLALLLSPEDFLDAVRRLQYLKYLAPARREQAEE 154
                          170       180       190       200       210       220
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  642 LEKQKEE--AQRRAQERDKQWLEHVQQEDEHQRpRKLhEEEKLKREESVKKKDGEEKGKQEAQDKLGR 707
Cdd:COG4942    155 LRADLAElaALRAELEAERAELEALLAELEEER-AAL-EALKAERQKLLARLEKELAELAAELAELQQ 220
SH3_CIP4_Bzz1_like cd11777
Src Homology 3 domain of Cdc42-Interacting Protein 4, Bzz1 and similar domains; This subfamily ...
1006-1057 9.52e-04

Src Homology 3 domain of Cdc42-Interacting Protein 4, Bzz1 and similar domains; This subfamily is composed of Cdc42-Interacting Protein 4 (CIP4) and similar proteins such as Formin Binding Protein 17 (FBP17) and FormiN Binding Protein 1-Like (FNBP1L), as well as yeast Bzz1 (or Bzz1p). CIP4 and FNBP1L are Cdc42 effectors that bind Wiskott-Aldrich syndrome protein (WASP) and function in endocytosis. CIP4 and FBP17 bind to the Fas ligand and may be implicated in the inflammatory response. CIP4 may also play a role in phagocytosis. Bzz1 is also a WASP/Las17-interacting protein involved in endocytosis and trafficking to the vacuole. It physically interacts with type I myosins and functions in the early steps of endocytosis. Members of this subfamily contain an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs) domain as well as at least one C-terminal SH3 domain. Bzz1 contains a second SH3 domain at the C-terminus. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212711 [Multi-domain]  Cd Length: 55  Bit Score: 38.74  E-value: 9.52e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKKD-GDWWTGTVGDKA--GVFPSNYVRL 1057
Cdd:cd11777      1 ECKALYAFVGSSEGTISMTEGEKLSLVEEDkGDGWTRVRRDTGeeGYVPTSYIRI 55
TolA COG3064
Membrane protein TolA involved in colicin uptake [Cell wall/membrane/envelope biogenesis];
349-793 9.75e-04

Membrane protein TolA involved in colicin uptake [Cell wall/membrane/envelope biogenesis];


Pssm-ID: 442298 [Multi-domain]  Cd Length: 485  Bit Score: 43.87  E-value: 9.75e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  349 TFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLEK------QRELERQ 422
Cdd:COG3064      4 ALEEKAAEAAAQERLEQAEAEKRAAAEAEQKAKEEAEEERLAELEAKRQAEEEAREAKAEAEQRAAElaaeaaKKLAEAE 83
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  423 REEERRKEIERREAAKRELERQRQLEWERNR---RQELLNQRNKEQEDIVVLKAKKKTLEFELEAlndKKHQLEGKLQDI 499
Cdd:COG3064     84 KAAAEAEKKAAAEKAKAAKEAEAAAAAEKAAaaaEKEKAEEAKRKAEEEAKRKAEEERKAAEAEA---AAKAEAEAARAA 160
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  500 RCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDSLVTLKRALEAKELAR 579
Cdd:COG3064    161 AAAAAAAAAAAARAAAGAAAALVAAAAAAVEAADTAAAAAAALAAAAAAAAADAALLALAVAARAAAASREAALAAVEAT 240
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  580 QHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQ 659
Cdd:COG3064    241 EEAALGGAEEAADLAAVGVLGAALAAAAAGAAALSSGLVVVAAALAGLAAAAAGLVLDDSAALAAELLGAVAAEEAVLAA 320
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  660 WLEHVQQEDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGRLFHQHQEPAKPAVQAPWSTAEKGPLTISAQEN 739
Cdd:COG3064    321 AAAAGALVVRGGGAASLEAALSLLAAGAAAAAAGAGALATGALGDALAAEAAGALLLGKLADVEEAAGAGILAAAGGGGL 400
                          410       420       430       440       450
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  740 VKVVYYRALYPFESRSHDEITIQPGDIVMVKGEWVDESQTGEPGWLGGELKGKT 793
Cdd:COG3064    401 LGLRLDLGAALLEAASAVELRVLLALAGAAGAVVALLVKLVADLAGGLVGIGKA 454
C2A_Copine cd04048
C2 domain first repeat in Copine; There are 2 copies of the C2 domain present in copine, a ...
1616-1707 9.83e-04

C2 domain first repeat in Copine; There are 2 copies of the C2 domain present in copine, a protein involved in membrane trafficking, protein-protein interactions, and perhaps even cell division and growth. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176013 [Multi-domain]  Cd Length: 120  Bit Score: 40.63  E-value: 9.83e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1616 KSNPYCEVTMGSQCHI-------TKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPD----DFLGRTEIRVAD 1684
Cdd:cd04048     20 KSDPFVVVYVKTGGSGqwveigrTEVIKNNLNPDFVTTFTVDYYFEEVQKLRFEVYDVDSKSKDlsdhDFLGEAECTLGE 99
                           90       100
                   ....*....|....*....|...
gi 1034627469 1685 IkkdQGSKGPVTKCLLLHEVPTG 1707
Cdd:cd04048    100 I---VSSPGQKLTLPLKGGKGKG 119
SH3_PSTPIP1 cd11824
Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, ...
1079-1135 9.84e-04

Src homology 3 domain of Proline-Serine-Threonine Phosphatase-Interacting Protein 1; PSTPIP1, also called CD2 Binding Protein 1 (CD2BP1), is mainly expressed in hematopoietic cells. It is a binding partner of the cell surface receptor CD2 and PTP-PEST, a tyrosine phosphatase which functions in cell motility and Rac1 regulation. It also plays a role in the activation of the Wiskott-Aldrich syndrome protein (WASP), which couples actin rearrangement and T cell activation. Mutations in the gene encoding PSTPIP1 cause the autoinflammatory disorder known as PAPA (pyogenic sterile arthritis, pyoderma gangrenosum, and acne) syndrome. PSTPIP1 contains an N-terminal F-BAR domain, PEST motifs, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212758 [Multi-domain]  Cd Length: 53  Bit Score: 38.89  E-value: 9.84e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGElqargKKRQIGWFPANYVKL 1135
Cdd:cd11824      2 YSVLYDYTAQEDDELSISKGDVVAVIEKGEDGWWTVE-----RNGQKGLVPGTYLEK 53
SH3_MLK cd11876
Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), ...
920-966 9.86e-04

Src Homology 3 domain of Mixed Lineage Kinases; MLKs are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Mammals have four MLKs (MLK1-4), mostly conserved in vertebrates, which contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212809 [Multi-domain]  Cd Length: 58  Bit Score: 39.03  E-value: 9.86e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQ------DMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11876      4 ALFDYDARGEDELTLRRGQPVEVLSKDaavsgdEGWWTGKIGDKVGIFPSNYV 56
CCDC66 pfam15236
Coiled-coil domain-containing protein 66; This protein family, named Coiled-coil ...
585-681 9.99e-04

Coiled-coil domain-containing protein 66; This protein family, named Coiled-coil domain-containing protein 66 (CCDC) refers to a protein domain found in eukaryotes, and is approximately 160 amino acids in length. CCDC66 protein is detected mainly in the inner segments of photoreceptors in many vertebrates including mice and humans. It has been found in dogs, that a mutation in the CCDC66 gene causes generalized progressive retinal atrophy (gPRA). This shows that the protein encoded for by this gene is vital for healthy vision and guards against photoreceptor cell degeneration. The structure of CCDC66 proteins includes a heptad repeat pattern which contains at least one coiled-coil domain. There are at least two or more alpha-helices which form a cable-like structure.


Pssm-ID: 434558 [Multi-domain]  Cd Length: 154  Bit Score: 41.32  E-value: 9.99e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  585 QLDEVEKETRSKLQEIDIFNNQLKELREIH--NKQQLQKQKSMEAERL-KQKEQERKIIELE----KQKEEAQRRAQERD 657
Cdd:pfam15236   43 QLEERERKRQKALEHQNAIKKQLEEKERQKklEEERRRQEEQEEEERLrREREEEQKQFEEErrkqKEKEEAMTRKTQAL 122
                           90       100
                   ....*....|....*....|....*.
gi 1034627469  658 KQWLEHVQQ--EDEHQRPRKLHEEEK 681
Cdd:pfam15236  123 LQAMQKAQElaQRLKQEQRIRELAEK 148
SH3_VAV2_2 cd11977
C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and ...
918-967 1.00e-03

C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and functions as a guanine nucleotide exchange factor (GEF) for RhoA, RhoB and RhoG and also activates Rac1 and Cdc42. It is implicated in many cellular and physiological functions including blood pressure control, eye development, neurite outgrowth and branching, EGFR endocytosis and degradation, and cell cluster morphology, among others. It has been reported to associate with Nek3. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212910 [Multi-domain]  Cd Length: 58  Bit Score: 38.84  E-value: 1.00e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQ---QDMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd11977      3 AVARYNFAARDMRELSLREGDVVRIYSRiggDQGWWKGETNGRIGWFPSTYVE 55
SH3_Vinexin_2 cd11924
Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 ...
1080-1135 1.00e-03

Second Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212857  Cd Length: 56  Bit Score: 38.79  E-value: 1.00e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469 1080 QVIASYTATG--PEQLTLAPGQLI-LIRKKNpGGWWEGELQARGKKrqiGWFPANYVKL 1135
Cdd:cd11924      2 EAVAQYTFKGdlEVELSFRKGEHIcLIRKVN-ENWYEGRITGTGRQ---GIFPASYVQV 56
SH3_MLK1-3 cd12059
Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine ...
920-966 1.00e-03

Src Homology 3 domain of Mixed Lineage Kinases 1, 2, and 3; MLKs 1, 2, and 3 are Serine/Threonine Kinases (STKs), catalyzing the transfer of the gamma-phosphoryl group from ATP to S/T residues on protein substrates. MLKs act as mitogen-activated protein kinase kinase kinases (MAP3Ks, MKKKs, MAPKKKs), which phosphorylate and activate MAPK kinases (MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate and activate MAPKs during signaling cascades that are important in mediating cellular responses to extracellular signals. MLKs play roles in immunity and inflammation, as well as in cell death, proliferation, and cell cycle regulation. Little is known about the specific function of MLK1, also called MAP3K9. It is capable of activating the c-Jun N-terminal kinase pathway. Mice lacking both MLK1 and MLK2 are viable, fertile, and have normal life spans. MLK2, also called MAP3K10, is abundant in brain, skeletal muscle, and testis. It functions upstream of the MAPK, c-Jun N-terminal kinase. It binds hippocalcin, a calcium-sensor protein that protects neurons against calcium-induced cell death. Both MLK2 and hippocalcin may be associated with the pathogenesis of Parkinson's disease. MLK3, also called MAP3K11, is highly expressed in breast cancer cells and its signaling through c-Jun N-terminal kinase has been implicated in the migration, invasion, and malignancy of cancer cells. It also functions as a negative regulator of Inhibitor of Nuclear Factor-KappaB Kinase (IKK) and thus, impacts inflammation and immunity. MLKs contain an SH3 domain, a catalytic kinase domain, a leucine zipper, a proline-rich region, and a CRIB domain that mediates binding to GTP-bound Cdc42 and Rac. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212992 [Multi-domain]  Cd Length: 58  Bit Score: 38.98  E-value: 1.00e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQ------DMWWFGEVQGQKGWFPKSYV 966
Cdd:cd12059      4 AVFDYEASAEDELTLRRGDRVEVLSKDsavsgdEGWWTGKINDRVGIFPSNYV 56
COG4913 COG4913
Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];
548-714 1.01e-03

Uncharacterized conserved protein, contains a C-terminal ATPase domain [Function unknown];


Pssm-ID: 443941 [Multi-domain]  Cd Length: 1089  Bit Score: 44.14  E-value: 1.01e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  548 LNDQLKQVQQNSLHRDSLVTLKRALE---------------AKELARqhLRDQLDEVEKeTRSKLQEIDIfnnQLKELRE 612
Cdd:COG4913    626 LAEAEERLEALEAELDALQERREALQrlaeyswdeidvasaEREIAE--LEAELERLDA-SSDDLAALEE---QLEELEA 699
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  613 IHN-----KQQLQKQKSMEAERLKQKEQERKiiELEKQKEEAQRRAQERDKQWLE-HVQQEDEHQRPRKLHE--EEKLKR 684
Cdd:COG4913    700 ELEeleeeLDELKGEIGRLEKELEQAEEELD--ELQDRLEAAEDLARLELRALLEeRFAAALGDAVERELREnlEERIDA 777
                          170       180       190
                   ....*....|....*....|....*....|
gi 1034627469  685 EESvkkkdgeekGKQEAQDKLGRLFHQHQE 714
Cdd:COG4913    778 LRA---------RLNRAEEELERAMRAFNR 798
MAP7 pfam05672
MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is ...
338-468 1.02e-03

MAP7 (E-MAP-115) family; The organization of microtubules varies with the cell type and is presumably controlled by tissue-specific microtubule-associated proteins (MAPs). The 115-kDa epithelial MAP (E-MAP-115/MAP7) has been identified as a microtubule-stabilising protein predominantly expressed in cell lines of epithelial origin. The binding of this microtubule associated protein is nucleotide independent.


Pssm-ID: 461709 [Multi-domain]  Cd Length: 153  Bit Score: 41.56  E-value: 1.02e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  338 EQQQLEkklpvtfEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLEKQR 417
Cdd:pfam05672   25 EQRERE-------EQERLEKEEEERLRKEELRRRAEEERARREEEARRLEEERRREEEERQRKAEEEAEEREQREQEEQE 97
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  418 ELERqrEEERRKEIERREAAKRELERQRQLEWERNRRQEllnqRNKEQEDI 468
Cdd:pfam05672   98 RLQK--QKEEAEAKAREEAERQRQEREKIMQQEEQERLE----RKKRIEEI 142
RNase_Y_N pfam12072
RNase Y N-terminal region;
338-415 1.04e-03

RNase Y N-terminal region;


Pssm-ID: 463456 [Multi-domain]  Cd Length: 201  Bit Score: 42.18  E-value: 1.04e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  338 EQQQLEKKLPVTFE--DKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKER-ER-----QEQERKRQL-E 408
Cdd:pfam12072   79 ELQRQERRLLQKEEtlDRKDESLEKKEESLEKKEKELEAQQQQLEEKEEELEELIEEQRQElERisgltSEEAKEILLdE 158

                   ....*..
gi 1034627469  409 LEKQLEK 415
Cdd:pfam12072  159 VEEELRH 165
Mplasa_alph_rch TIGR04523
helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of ...
452-667 1.04e-03

helix-rich Mycoplasma protein; Members of this family occur strictly within a subset of Mycoplasma species. Members average 750 amino acids in length, including signal peptide. Sequences are predicted (Jpred 3) to be almost entirely alpha-helical. These sequences show strong periodicity (consistent with long alpha helical structures) and low complexity rich in D,E,N,Q, and K. Genes encoding these proteins are often found in tandem. The function is unknown.


Pssm-ID: 275316 [Multi-domain]  Cd Length: 745  Bit Score: 43.86  E-value: 1.04e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  452 NRRQELLNQRNKEQEDIVVLKAKKKTLEFEL-------EALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEI 524
Cdd:TIGR04523   33 TEEKQLEKKLKTIKNELKNKEKELKNLDKNLnkdeekiNNSNNKIKILEQQIKDLNDKLKKNKDKINKLNSDLSKINSEI 112
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  525 THLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDSLVTLKRAlEAKELARQ--HLRDQLDEVEKETRSKLQEIDI 602
Cdd:TIGR04523  113 KNDKEQKNKLEVELNKLEKQKKENKKNIDKFLTEIKKKEKELEKLNN-KYNDLKKQkeELENELNLLEKEKLNIQKNIDK 191
                          170       180       190       200       210       220
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  603 FNNQL--KELREIHNKQQLQKQKSMEAERLKQKEQErkiIELEKQKEEAQRRAQERDKQwLEHVQQE 667
Cdd:TIGR04523  192 IKNKLlkLELLLSNLKKKIQKNKSLESQISELKKQN---NQLKDNIEKKQQEINEKTTE-ISNTQTQ 254
YhaN COG4717
Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];
409-671 1.08e-03

Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];


Pssm-ID: 443752 [Multi-domain]  Cd Length: 641  Bit Score: 43.60  E-value: 1.08e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  409 LEKQLEKQRElerqreeerrkeierreaakrELERQRQLEWERNrrqelLNQRNKEQEDIVVLKAKKKtlefELEALNDK 488
Cdd:COG4717     47 LLERLEKEAD---------------------ELFKPQGRKPELN-----LKELKELEEELKEAEEKEE----EYAELQEE 96
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  489 KHQLEGKLQDIRCRLTTQRQEIESTNKSRELRiaeithlqqqlqesqqmlgRLIPEKQILNDQLKQVQQNslhrdslvtl 568
Cdd:COG4717     97 LEELEEELEELEAELEELREELEKLEKLLQLL-------------------PLYQELEALEAELAELPER---------- 147
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  569 KRALEAKELARQHLRDQLDEVEKETRSKLQEIDifnnQLKELREIHNKQQLQKQKSmEAERLKQKEQERKiIELEKQKEE 648
Cdd:COG4717    148 LEELEERLEELRELEEELEELEAELAELQEELE----ELLEQLSLATEEELQDLAE-ELEELQQRLAELE-EELEEAQEE 221
                          250       260
                   ....*....|....*....|...
gi 1034627469  649 AQRRAQERDKQWLEHVQQEDEHQ 671
Cdd:COG4717    222 LEELEEELEQLENELEAAALEER 244
SH3_CIN85_1 cd12052
First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
749-800 1.09e-03

First Src Homology 3 domain (SH3A) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CIN85; SH3A binds to internal proline-rich motifs within the proline-rich region. This intramolecular interaction serves as a regulatory mechanism to keep CIN85 in a closed conformation, preventing the recruitment of other proteins. SH3A has also been shown to bind ubiquitin and to an atypical PXXXPR motif at the C-terminus of Cbl and the cytoplasmic end of the cell adhesion protein CD2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212985 [Multi-domain]  Cd Length: 53  Bit Score: 38.72  E-value: 1.09e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  749 YPFESRSHDEITIQPGDIVM-VKGEwvdesqtgEPGWLGGELKGKTGWFPANY 800
Cdd:cd12052      6 FDYKAQHEDELTITVGDIITkIKKD--------DGGWWEGEIKGRRGLFPDNF 50
SH3_DNMBP_N3 cd11796
Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or ...
746-800 1.09e-03

Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin and key regulatory proteins of the actin cytoskeleton. It plays an important role in regulating cell junction configuration. The four N-terminal SH3 domains of DNMBP binds the GTPase dynamin, which plays an important role in the fission of endocytic vesicles. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212730  Cd Length: 51  Bit Score: 38.49  E-value: 1.09e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwvdesqtGEPGWLGGELKGKTGWFPANY 800
Cdd:cd11796      3 RVLQDLSAQLDEELDLREGDVVTITGI-------LDKGWFRGELNGRRGIFPEGF 50
SH3_SPIN90 cd11849
Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also ...
1163-1210 1.10e-03

Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also called NCK interacting protein with SH3 domain (NCKIPSD), Dia-interacting protein (DIP), 54 kDa vimentin-interacting protein (VIP54), or WASP-interacting SH3-domain protein (WISH). It is an F-actin binding protein that regulates actin polymerization and endocytosis. It associates with the Arp2/3 complex near actin filaments and determines filament localization at the leading edge of lamellipodia. SPIN90 is expressed in the early stages of neuronal differentiation and plays a role in regulating growth cone dynamics and neurite outgrowth. It also interacts with IRSp53 and regulates cell motility by playing a role in the formation of membrane protrusions. SPIN90 contains an N-terminal SH3 domain, a proline-rich domain, and a C-terminal VCA (verprolin-homology and cofilin-like acidic) domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212783 [Multi-domain]  Cd Length: 53  Bit Score: 38.45  E-value: 1.10e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWK-GEVNGQVGLFPSNYVK 1210
Cdd:cd11849      5 LYDFKSAEPNTLSFSEGETFLLLERSNAHWWLvTNHSGETGYVPANYVK 53
SH3_CD2AP_1 cd12053
First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ...
1006-1056 1.13e-03

First Src Homology 3 domain (SH3A) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the first SH3 domain (SH3A) of CD2AP. SH3A binds to the PXXXPR motif present in c-Cbl and the cytoplasmic domain of cell adhesion protein CD2. Its interaction with CD2 anchors CD2 at sites of cell contact. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212986  Cd Length: 56  Bit Score: 38.67  E-value: 1.13e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILVTKK--DGDWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd12053      1 EYIVEYDYDAVHEDELTIRVGEIIRNVKKleEEGWLEGELNGRRGMFPDNFVK 53
SH3_PRMT2 cd11806
Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, ...
1006-1055 1.20e-03

Src homology 3 domain of Protein arginine N-methyltransferase 2; PRMT2, also called HRMT1L1, belongs to the arginine methyltransferase protein family. It functions as a coactivator to both estrogen receptor alpha (ER-alpha) and androgen receptor (AR), presumably through arginine methylation. The ER-alpha transcription factor is involved in cell proliferation, differentiation, morphogenesis, and apoptosis, and is also implicated in the development and progression of breast cancer. PRMT2 and its variants are upregulated in breast cancer cells and may be involved in modulating the ER-alpha signaling pathway during formation of breast cancer. PRMT2 also plays a role in regulating the function of E2F transcription factors, which are critical cell cycle regulators, by binding to the retinoblastoma gene product (RB). It contains an N-terminal SH3 domain and an AdoMet binding domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212740 [Multi-domain]  Cd Length: 53  Bit Score: 38.53  E-value: 1.20e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGDVILV-TKKDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11806      1 EYVAIADFVATDDSQLSFESGDKLLVlRKPSVDWWWAEHNGCCGYIPASHL 51
tolA_full TIGR02794
TolA protein; TolA couples the inner membrane complex of itself with TolQ and TolR to the ...
336-489 1.20e-03

TolA protein; TolA couples the inner membrane complex of itself with TolQ and TolR to the outer membrane complex of TolB and OprL (also called Pal). Most of the length of the protein consists of low-complexity sequence that may differ in both length and composition from one species to another, complicating efforts to discriminate TolA (the most divergent gene in the tol-pal system) from paralogs such as TonB. Selection of members of the seed alignment and criteria for setting scoring cutoffs are based largely conserved operon struction. //The Tol-Pal complex is required for maintaining outer membrane integrity. Also involved in transport (uptake) of colicins and filamentous DNA, and implicated in pathogenesis. Transport is energized by the proton motive force. TolA is an inner membrane protein that interacts with periplasmic TolB and with outer membrane porins ompC, phoE and lamB. [Transport and binding proteins, Other, Cellular processes, Pathogenesis]


Pssm-ID: 274303 [Multi-domain]  Cd Length: 346  Bit Score: 43.30  E-value: 1.20e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  336 EDEQQQLEKKLPvtfEDKKRENFERgnlELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKqlek 415
Cdd:TIGR02794   63 AKKEQERQKKLE---QQAEEAEKQR---AAEQARQKELEQRAAAEKAAKQAEQAAKQAEEKQKQAEEAKAKQAAEA---- 132
                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  416 qrelerqreeerrkeierreAAKRELERQRQLEWERNRRQElLNQRNKEQEDivvlkAKKKTLEFELEALNDKK 489
Cdd:TIGR02794  133 --------------------KAKAEAEAERKAKEEAAKQAE-EEAKAKAAAE-----AKKKAEEAKKKAEAEAK 180
PH_LARG cd13390
Leukemia-associated Rho guanine nucleotide exchange factor Pleckstrin homology (PH) domain; ...
1458-1562 1.22e-03

Leukemia-associated Rho guanine nucleotide exchange factor Pleckstrin homology (PH) domain; LARG (also called RhoGEF12) belongs to regulator of G-protein signaling (RGS) domain-containing RhoGEFs that are RhoA-selective and directly activated by the Galpha12/13 family of heterotrimeric G proteins. RhoGEFs activate Rho GTPases regulating cytoskeletal structure, gene transcription, and cell migration. LARG contains a N-terminal extension, followed by Dbl homology (DH)-PH domains which bind and catalyze the exchange of GDP for GTP on RhoA in addition to a RGS domain. The active site of RhoA adopts two distinct GDP-excluding conformations among the four unique complexes in the asymmetric unit. The LARG PH domain also contains a potential protein-docking site. LARG forms a homotetramer via its DH domains. PH domains have diverse functions, but in general are involved in targeting proteins to the appropriate cellular location or in the interaction with a binding partner. They share little sequence conservation, but all have a common fold, which is electrostatically polarized. Less than 10% of PH domains bind phosphoinositide phosphates (PIPs) with high affinity and specificity. PH domains are distinguished from other PIP-binding domains by their specific high-affinity binding to PIPs with two vicinal phosphate groups: PtdIns(3,4)P2, PtdIns(4,5)P2 or PtdIns(3,4,5)P3 which results in targeting some PH domain proteins to the plasma membrane. A few display strong specificity in lipid binding. Any specificity is usually determined by loop regions or insertions in the N-terminus of the domain, which are not conserved across all PH domains. PH domains are found in cellular signaling proteins such as serine/threonine kinase, tyrosine kinases, regulators of G-proteins, endocytotic GTPases, adaptors, as well as cytoskeletal associated molecules and in lipid associated enzymes.


Pssm-ID: 275425  Cd Length: 138  Bit Score: 40.74  E-value: 1.22e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1458 LGPRKFLHSGKL-YKAKSNK--ELYGFLFNDFLLLTQ----------ITKPLGSSGTDK-VFSPKsnlqykmyktpIFLN 1523
Cdd:cd13390     21 LTKRKMIHEGPLtWKVNRDKtiDLYTLLLEDILVLLQkqddrlvlrcHSKILASTADSKhTFSPV-----------IKLN 89
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|...
gi 1034627469 1524 EVLVK-LPTDpsgDEPIFHISHID---RVYTLRAESINERTAW 1562
Cdd:cd13390     90 TVLVRqVATD---NKAFFVISMSEngaQIYELVAQTVSEKTVW 129
DUF3584 pfam12128
Protein of unknown function (DUF3584); This protein is found in bacteria and eukaryotes. ...
335-708 1.26e-03

Protein of unknown function (DUF3584); This protein is found in bacteria and eukaryotes. Proteins in this family are typically between 943 to 1234 amino acids in length. This family contains a P-loop motif suggesting it is a nucleotide binding protein. It may be involved in replication.


Pssm-ID: 432349 [Multi-domain]  Cd Length: 1191  Bit Score: 43.67  E-value: 1.26e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKL--------PVTFEDKKRENFERGNLELEKRRQALlEQQRKEQERLAQLERA---------EQERKERE 397
Cdd:pfam12128  435 FNEEEYRLKSRLgelklrlnQATATPELLLQLENFDERIERAREEQ-EAANAEVERLQSELRQarkrrdqasEALRQASR 513
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  398 RQEQERKRQLELEKQLEKQRELERQREEERRKEIERREA--AKRELERQRQLEWERNRRQEllnqrnKEQEDIVVLKAKK 475
Cdd:pfam12128  514 RLEERQSALDELELQLFPQAGTLLHFLRKEAPDWEQSIGkvISPELLHRTDLDPEVWDGSV------GGELNLYGVKLDL 587
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  476 KTLE-----FELEALNDKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQilND 550
Cdd:pfam12128  588 KRIDvpewaASEEELRERLDKAEEALQSAREKQAAAEEQLVQANGELEKASREETFARTALKNARLDLRRLFDEKQ--SE 665
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  551 QLKQVQQNSLHRDSLVTLKRALEAK--------ELARQHLRDQLDEVEKETRSKLQE-IDIFNNQLKELreihnKQQLQK 621
Cdd:pfam12128  666 KDKKNKALAERKDSANERLNSLEAQlkqldkkhQAWLEEQKEQKREARTEKQAYWQVvEGALDAQLALL-----KAAIAA 740
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  622 QKSMEAERLKQKEQERK-------------------IIELEKQKEEAQRRAQE--RDKQWLEHVQQEdehQRPRKLHEEE 680
Cdd:pfam12128  741 RRSGAKAELKALETWYKrdlaslgvdpdviaklkreIRTLERKIERIAVRRQEvlRYFDWYQETWLQ---RRPRLATQLS 817
                          410       420
                   ....*....|....*....|....*...
gi 1034627469  681 KLKREESvkkkdgeekgkqEAQDKLGRL 708
Cdd:pfam12128  818 NIERAIS------------ELQQQLARL 833
SH3_Sdc25 cd11883
Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is ...
746-800 1.29e-03

Src Homology 3 domain of Sdc25/Cdc25 guanine nucleotide exchange factors; This subfamily is composed of the Saccharomyces cerevisiae guanine nucleotide exchange factors (GEFs) Sdc25 and Cdc25, and similar proteins. These GEFs regulate Ras by stimulating the GDP/GTP exchange on Ras. Cdc25 is involved in the Ras/PKA pathway that plays an important role in the regulation of metabolism, stress responses, and proliferation, depending on available nutrients and conditions. Proteins in this subfamily contain an N-terminal SH3 domain as well as REM (Ras exchanger motif) and RasGEF domains at the C-terminus. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212816  Cd Length: 55  Bit Score: 38.42  E-value: 1.29e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwvDESqtgepGWLGGEL-----KGKTGWFPANY 800
Cdd:cd11883      3 VALYDFTPKSKNQLSFKAGDIIYVLNK--DPS-----GWWDGVIisssgKVKRGWFPSNY 55
SH3_CRK_C cd11759
C-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor ...
1153-1211 1.30e-03

C-terminal Src Homology 3 domain of Ct10 Regulator of Kinase adaptor proteins; CRK adaptor proteins consists of SH2 and SH3 domains, which bind tyrosine-phosphorylated peptides and proline-rich motifs, respectively. They function downstream of protein tyrosine kinases in many signaling pathways started by various extracellular signals, including growth and differentiation factors. Cellular CRK (c-CRK) contains a single SH2 domain, followed by N-terminal and C-terminal SH3 domains. It is involved in the regulation of many cellular processes including cell growth, motility, adhesion, and apoptosis. CRK has been implicated in the malignancy of various human cancers. The C-terminal SH3 domain of CRK has not been shown to bind any target protein; it acts as a negative regulator of CRK function by stabilizing a structure that inhibits the access by target proteins to the N-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212693 [Multi-domain]  Cd Length: 57  Bit Score: 38.62  E-value: 1.30e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1153 ALAAVCQ--VIGMYDYTAqnddeLAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd11759      2 AYARVIQkrVPNAYDKTA-----LALEVGDLVKVTKINVSGQWEGELNGKVGHFPFTHVEL 57
SH3_FCHSD2_2 cd11894
Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain ...
1009-1052 1.33e-03

Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212827  Cd Length: 56  Bit Score: 38.38  E-value: 1.33e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILV----TKKDGDWWTGTVGDKAGVFPS 1052
Cdd:cd11894      4 ALYDYEGQTDDELSFPEGAIIRIlnkeNQDDDGFWEGEFNGRIGVFPS 51
SH3_VAV2_2 cd11977
C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and ...
1084-1134 1.33e-03

C-terminal (or second) Src homology 3 domain of VAV2 protein; VAV2 is widely expressed and functions as a guanine nucleotide exchange factor (GEF) for RhoA, RhoB and RhoG and also activates Rac1 and Cdc42. It is implicated in many cellular and physiological functions including blood pressure control, eye development, neurite outgrowth and branching, EGFR endocytosis and degradation, and cell cluster morphology, among others. It has been reported to associate with Nek3. VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. The SH3 domain of VAV is involved in the localization of proteins to specific sites within the cell, by interacting with proline-rich sequences within target proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212910 [Multi-domain]  Cd Length: 58  Bit Score: 38.45  E-value: 1.33e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1084 SYTATGPEQLTLAPGQLILIRKKNPG--GWWEGELQARgkkrqIGWFPANYVK 1134
Cdd:cd11977      8 NFAARDMRELSLREGDVVRIYSRIGGdqGWWKGETNGR-----IGWFPSTYVE 55
C2_Perforin cd04032
C2 domain of Perforin; Perforin contains a single copy of a C2 domain in its C-terminus and ...
1594-1689 1.35e-03

C2 domain of Perforin; Perforin contains a single copy of a C2 domain in its C-terminus and plays a role in lymphocyte-mediated cytotoxicity. Mutations in perforin leads to familial hemophagocytic lymphohistiocytosis type 2. The function of perforin is calcium dependent and the C2 domain is thought to confer this binding to target cell membranes. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 175998 [Multi-domain]  Cd Length: 127  Bit Score: 40.32  E-value: 1.35e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1594 GIGRLMVNVVegielkpcRSHG-------KSNPYCEVTMGSQCHITKTIQDTLNPKWNSNCQFFIRDLEQ-EVLCITVFE 1665
Cdd:cd04032     26 GLATLTVTVL--------RATGlwgdyftSTDGYVKVFFGGQEKRTEVIWNNNNPRWNATFDFGSVELSPgGKLRFEVWD 97
                           90       100
                   ....*....|....*....|....*
gi 1034627469 1666 RDQFSPDDFLGRTEIRV-ADIKKDQ 1689
Cdd:cd04032     98 RDNGWDDDLLGTCSVVPeAGVHEDS 122
EF-hand_7 pfam13499
EF-hand domain pair;
224-283 1.36e-03

EF-hand domain pair;


Pssm-ID: 463900 [Multi-domain]  Cd Length: 67  Bit Score: 38.77  E-value: 1.36e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  224 KYRQLFNSHDKTMSGHLT----GPQARTILMQSSLPQAQLASIWNLSDIDQDGKLTAEEFILAM 283
Cdd:pfam13499    3 KLKEAFKLLDSDGDGYLDveelKKLLRKLEEGEPLSDEEVEELFKEFDLDKDGRISFEEFLELY 66
SH3_Src_like cd11845
Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members ...
920-965 1.37e-03

Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members include Src, Lck, Hck, Blk, Lyn, Fgr, Fyn, Yrk, Yes, and Brk. Src (or c-Src) proteins are cytoplasmic (or non-receptor) PTKs which are anchored to the plasma membrane. They contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation sites. Src proteins are involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. They were identified as the first proto-oncogene products, and they regulate cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Src kinases are overexpressed in a variety of human cancers, making them attractive targets for therapy. They are also implicated in acute inflammatory responses and osteoclast function. Src, Fyn, Yes, and Yrk are widely expressed, while Blk, Lck, Hck, Fgr, Lyn, and Brk show a limited expression pattern. This subfamily also includes Drosophila Src42A, Src oncogene at 42A (also known as Dsrc41) which accumulates at sites of cell-cell or cell-matrix adhesion, and participates in Drosphila development and wound healing. It has been shown to promote tube elongation in the tracheal system, is essential for proper cell-cell matching during dorsal closure, and regulates cell-cell contacts in developing Drosophila eyes. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212779 [Multi-domain]  Cd Length: 52  Bit Score: 38.33  E-value: 1.37e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGE--VQGQKGWFPKSY 965
Cdd:cd11845      4 ALYDYEARTDDDLSFKKGDRLQILDDsDGDWWLARhlSTGKEGYIPSNY 52
C2B_Synaptotagmin-1 cd08402
C2 domain second repeat present in Synaptotagmin 1; Synaptotagmin is a membrane-trafficking ...
1596-1677 1.44e-03

C2 domain second repeat present in Synaptotagmin 1; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 1, a member of the class 1 synaptotagmins, is located in the brain and endocranium and localized to the synaptic vesicles and secretory granules. It functions as a Ca2+ sensor for fast exocytosis. It, like synaptotagmin-2, has an N-glycosylated N-terminus. Synaptotagmin 4, a member of class 4 synaptotagmins, is located in the brain. It functions are unknown. It, like synaptotagmin-11, has an Asp to Ser substitution in its C2A domain. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176047 [Multi-domain]  Cd Length: 136  Bit Score: 40.46  E-value: 1.44e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTM---GSQCHITKTI--QDTLNPKWNSNCQFFI--RDLEQEVLCITVFERDQ 1668
Cdd:cd08402     15 GKLTVVILEAKNLKKMDVGGLSDPYVKIHLmqnGKRLKKKKTTikKRTLNPYYNESFSFEVpfEQIQKVHLIVTVLDYDR 94

                   ....*....
gi 1034627469 1669 FSPDDFLGR 1677
Cdd:cd08402     95 IGKNDPIGK 103
SH3_ASAP2 cd11966
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
917-966 1.48e-03

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing protein 2; ASAP2 is also called DDEF2 (Development and Differentiation Enhancing Factor 2), AMAP2, centaurin beta-3, or PAG3. It mediates the functions of Arf GTPases vial dual mechanisms: it exhibits GTPase activating protein (GAP) activity towards class I (Arf1) and II (Arf5) Arfs; and it binds class III Arfs (GTP-Arf6) stably without GAP activity. It binds paxillin and is implicated in Fcgamma receptor-mediated phagocytosis in macrophages and in cell migration. ASAP2 contains an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212899  Cd Length: 56  Bit Score: 38.40  E-value: 1.48e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQGQ---KGWFPKSYV 966
Cdd:cd11966      1 RVKALYNCVADNPDELTFSEGEIIIVDGEEDKeWWIGHIDGEptrRGAFPVSFV 54
Myosin_tail_1 pfam01576
Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and ...
335-686 1.50e-03

Myosin tail; The myosin molecule is a multi-subunit complex made up of two heavy chains and four light chains it is a fundamental contractile protein found in all eukaryote cell types. This family consists of the coiled-coil myosin heavy chain tail region. The coiled-coil is composed of the tail from two molecules of myosin. These can then assemble into the macromolecular thick filament. The coiled-coil region provides the structural backbone the thick filament.


Pssm-ID: 460256 [Multi-domain]  Cd Length: 1081  Bit Score: 43.63  E-value: 1.50e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLPVtfEDKKRENFERgnlELEKRRQALLEQQRKEQERLAQLERAEQERKERERqEQERKRQlelekqle 414
Cdd:pfam01576  494 LEDERNSLQEQLEE--EEEAKRNVER---QLSTLQAQLSDMKKKLEEDAGTLEALEEGKKRLQR-ELEALTQ-------- 559
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  415 kqrelerqReeerrkeIERREAAKRELERQrqleweRNRRQEllnqrnkEQEDIVVLKAKKKTLEFELEALNDKKHQLEG 494
Cdd:pfam01576  560 --------Q-------LEEKAAAYDKLEKT------KNRLQQ-------ELDDLLVDLDHQRQLVSNLEKKQKKFDQMLA 611
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  495 KLQDIRCRLTTQRQEIESTNKSRELRIAEITHLqqqlqesqqmlgrLIPEKQILNDQLKQVQQNSLHRDSLVT------- 567
Cdd:pfam01576  612 EEKAISARYAEERDRAEAEAREKETRALSLARA-------------LEEALEAKEELERTNKQLRAEMEDLVSskddvgk 678
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  568 ----LKRALEAKELARQHLRDQLDEVEKETR----SKLQ-EIDIFNNQLKELREIHN--------KQQLQKQ-KSMEAER 629
Cdd:pfam01576  679 nvheLERSKRALEQQVEEMKTQLEELEDELQatedAKLRlEVNMQALKAQFERDLQArdeqgeekRRQLVKQvRELEAEL 758
                          330       340       350       360       370       380
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  630 LKQKEQ-----------ERKIIELEKQKEEAQRRAQERDKQwLEHVQ-QEDEHQRPRklhEEEKLKREE 686
Cdd:pfam01576  759 EDERKQraqavaakkklELDLKELEAQIDAANKGREEAVKQ-LKKLQaQMKDLQREL---EEARASRDE 823
SH3_Tks5_2 cd12077
Second Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also ...
745-803 1.50e-03

Second Src homology 3 domain of Tyrosine kinase substrate with five SH3 domains; Tks5, also called SH3 and PX domain-containing protein 2A (SH3PXD2A) or Five SH (FISH), is a scaffolding protein and Src substrate that is localized in podosomes, which are electron-dense structures found in Src-transformed fibroblasts, osteoclasts, macrophages, and some invasive cancer cells. It binds and regulates some members of the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. It is required for podosome formation, degradation of the extracellular matrix, and cancer cell invasion. Tks5 contains an N-terminal Phox homology (PX) domain and five SH3 domains. This model characterizes the second SH3 domain of Tks5. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213010  Cd Length: 54  Bit Score: 38.47  E-value: 1.50e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELKGKTGWFPANYAEK 803
Cdd:cd12077      3 YVTVQPYTSQGKDEIGFEKGVTVEV-------IQKNLEGWWYIRYLGKEGWAPASYLKK 54
SH3_PLCgamma1 cd11970
Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is ...
746-804 1.53e-03

Src homology 3 domain of Phospholipase C (PLC) gamma 1; PLCgamma1 is widely expressed and is essential in growth and development. It is activated by the TrkA receptor tyrosine kinase and functions as a key regulator of cell differentiation. It is also the predominant PLCgamma in T cells and is required for T cell and NK cell function. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. The SH3 domain of PLCgamma1 directly interacts with dynamin-1 and can serve as a guanine nucleotide exchange factor (GEF). It also interacts with Cbl, inhibiting its phosphorylation and activity. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212903  Cd Length: 60  Bit Score: 38.43  E-value: 1.53e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  746 RALYPFESRSHDEITiqpgdivMVKGEWVDESQTGEPGWLGGELKGKTG-WFPANYAEKI 804
Cdd:cd11970      7 KALFDYKAQREDELT-------FTKNAIIQNVEKQEGGWWRGDYGGKKQlWFPSNYVEEI 59
SH3_Abi2 cd11972
Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It ...
1082-1137 1.53e-03

Src homology 3 domain of Abl Interactor 2; Abi2 is highly expressed in the brain and eye. It regulates actin cytoskeletal reorganization at adherens junctions and dendritic spines, which is important in cell morphogenesis, migration, and cognitive function. Mice deficient with Abi2 show defects in orientation and migration of lens fibers, neuronal migration, dendritic spine morphology, as well as deficits in learning and memory. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212905 [Multi-domain]  Cd Length: 61  Bit Score: 38.45  E-value: 1.53e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1082 IASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQArgkkrQIGWFPANYVKLLS 1137
Cdd:cd11972      8 IYDYTKDKEDELSFQEGAIIYVIKKNDDGWYEGVMNG-----VTGLFPGNYVESIM 58
SH3_Intersectin2_5 cd11996
Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor ...
747-802 1.55e-03

Fifth Src homology 3 domain (or SH3E) of Intersectin-2; Intersectin-2 (ITSN2) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN2 also functions as a specific GEF for Cdc42 activation in epithelial morphogenesis, and is required in mitotic spindle orientation. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN2 is expected to bind protein partners, similar to ITSN1 which has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212929 [Multi-domain]  Cd Length: 54  Bit Score: 38.42  E-value: 1.55e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVkgewVDESqtgEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11996      5 AMYDYTANNEDELSFSKGQLINV----LNKD---DPDWWQGEINGVTGLFPSNYVK 53
SH3_STAM2 cd11963
Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST ...
1085-1133 1.57e-03

Src homology 3 domain of Signal Transducing Adaptor Molecule 2; STAM2, also called EAST (Epidermal growth factor receptor-associated protein with SH3 and TAM domain) or Hbp (Hrs binding protein), is part of the endosomal sorting complex required for transport (ESCRT-0). It plays a role in sorting mono-ubiquinated endosomal cargo for trafficking to the lysosome for degradation. It is also involved in the regulation of exocytosis. STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212896 [Multi-domain]  Cd Length: 57  Bit Score: 38.46  E-value: 1.57e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPGGWWEGElqargKKRQIGWFPANYV 1133
Cdd:cd11963     10 FEAVEDNELTFKHGEIIIVLDDSDANWWKGE-----NHRGVGLFPSNFV 53
SH3_Myosin-I_fungi cd11858
Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent ...
1007-1055 1.58e-03

Src homology 3 domain of Type I fungal Myosins; Type I myosins (myosin-I) are actin-dependent motors in endocytic actin structures and actin patches. They play roles in membrane traffic in endocytic and secretory pathways, cell motility, and mechanosensing. Saccharomyces cerevisiae has two myosins-I, Myo3 and Myo5, which are involved in endocytosis and the polarization of the actin cytoskeleton. Myosin-I contains an N-terminal actin-activated ATPase, a phospholipid-binding TH1 (tail homology 1) domain, and a C-terminal extension which includes an F-actin-binding TH2 domain, an SH3 domain, and an acidic peptide that participates in activating the Arp2/3complex. The SH3 domain of myosin-I is required for myosin-I-induced actin polymerization. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212792 [Multi-domain]  Cd Length: 55  Bit Score: 38.14  E-value: 1.58e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGD--KAGVFPSNYV 1055
Cdd:cd11858      2 YKALYDFAGSVANELSLKKDDIVYIVQKEDNgWWLAKKLDesKEGWVPAAYL 53
SH3_PACSIN1-2 cd11998
Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) ...
1009-1055 1.61e-03

Src homology 3 domain of Protein kinase C and Casein kinase Substrate in Neurons 1 (PACSIN1) and PACSIN 2; PACSIN 1 or Syndapin I (Synaptic dynamin-associated protein I) is expressed specifically in the brain and is localized in neurites and synaptic boutons. It binds the brain-specific proteins dynamin I, synaptojanin, synapsin I, and neural Wiskott-Aldrich syndrome protein (nWASP), and functions as a link between the cytoskeletal machinery and synaptic vesicle endocytosis. PACSIN 1 interacts with huntingtin and may be implicated in the neuropathology of Huntington's disease. PACSIN 2 or Syndapin II is expressed ubiquitously and is involved in the regulation of tubulin polymerization. It associates with Golgi membranes and forms a complex with dynamin II which is crucial in promoting vesicle formation from the trans-Golgi network. PACSINs act as regulators of cytoskeletal and membrane dynamics. Vetebrates harbor three isoforms with distinct expression patterns and specific functions. PACSINs contain an N-terminal F-BAR domain and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212931 [Multi-domain]  Cd Length: 56  Bit Score: 38.39  E-value: 1.61e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKDGD--WWTGTV-GDKAGVFPSNYV 1055
Cdd:cd11998      5 ALYDYDGQEQDELSFKAGDELTKLEDEDEqgWCKGRLdSGQVGLYPANYV 54
SH3_Eve1_2 cd11815
Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
917-967 1.66e-03

Second Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212749 [Multi-domain]  Cd Length: 52  Bit Score: 37.93  E-value: 1.66e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSYVK 967
Cdd:cd11815      1 HAVVLHDFPAEHSDDLSLNSGEIVYLLEKIDTEWYrGKCKNTTGIFPANHVK 52
SH3_RUSC2 cd11957
Src homology 3 domain of RUN and SH3 domain-containing protein 2; RUSC2, also called Iporin or ...
1159-1209 1.67e-03

Src homology 3 domain of RUN and SH3 domain-containing protein 2; RUSC2, also called Iporin or Interacting protein of Rab1, is expressed ubiquitously with highest amounts in the brain and testis. It interacts with the small GTPase Rab1 and the Golgi matrix protein GM130, and may function in linking GTPases to certain intracellular signaling pathways. RUSC proteins are adaptor proteins consisting of RUN, leucine zipper, and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212890  Cd Length: 52  Bit Score: 37.97  E-value: 1.67e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1159 QVIGMYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11957      1 EVKALCHHIATEPGQLSFNKGDILQVLSRADGDWLRCSLGPDSGLVPIAYV 51
YhaN COG4717
Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];
545-684 1.69e-03

Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];


Pssm-ID: 443752 [Multi-domain]  Cd Length: 641  Bit Score: 43.22  E-value: 1.69e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  545 KQILNDQLKQVQQNslhRDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKS 624
Cdd:COG4717     66 PELNLKELKELEEE---LKEAEEKEEEYAELQEELEELEEELEELEAELEELREELEKLEKLLQLLPLYQELEALEAELA 142
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  625 MEAERLKQ-KEQERKIIELEKQKEEAQRRAQERDkqwlehvQQEDEHQRPRKLHEEEKLKR 684
Cdd:COG4717    143 ELPERLEElEERLEELRELEEELEELEAELAELQ-------EELEELLEQLSLATEEELQD 196
SH3_Irsp53_BAIAP2L cd11779
Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific ...
746-803 1.72e-03

Src Homology 3 domain of Insulin Receptor tyrosine kinase Substrate p53, Brain-specific Angiogenesis Inhibitor 1-Associated Protein 2 (BAIAP2)-Like proteins, and similar proteins; Proteins in this family include IRSp53, BAIAP2L1, BAIAP2L2, and similar proteins. They all contain an Inverse-Bin/Amphiphysin/Rvs (I-BAR) or IMD domain in addition to the SH3 domain. IRSp53, also known as BAIAP2, is a scaffolding protein that takes part in many signaling pathways including Cdc42-induced filopodia formation, Rac-mediated lamellipodia extension, and spine morphogenesis. IRSp53 exists as multiple splicing variants that differ mainly at the C-termini. BAIAP2L1, also called IRTKS (Insulin Receptor Tyrosine Kinase Substrate), serves as a substrate for the insulin receptor and binds the small GTPase Rac. It plays a role in regulating the actin cytoskeleton and colocalizes with F-actin, cortactin, VASP, and vinculin. IRSp53 and IRTKS also mediate the recruitment of effector proteins Tir and EspFu, which regulate host cell actin reorganization, to bacterial attachment sites. BAIAP2L2 co-localizes with clathrin plaques but its function has not been determined. The SH3 domains of IRSp53 and IRTKS have been shown to bind the proline-rich C-terminus of EspFu. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212713 [Multi-domain]  Cd Length: 57  Bit Score: 38.07  E-value: 1.72e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwvdesqtgEP--GWLGGEL--KGKTGWFPANYAEK 803
Cdd:cd11779      4 KALYPHAAGGETQLSFEEGDVITLLGP--------EPrdGWHYGENerSGRRGWFPIAYTEP 57
SH3_ARHGEF37_C2 cd11941
Second C-terminal Src homology 3 domain of Rho guanine nucleotide exchange factor 37; ARHGEF37 ...
917-966 1.73e-03

Second C-terminal Src homology 3 domain of Rho guanine nucleotide exchange factor 37; ARHGEF37 contains a RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. Its specific function is unknown. Its domain architecture is similar to the C-terminal half of DNMBP or Tuba, a cdc42-specific GEF that provides a functional link between dynamin, Rho GTPase signaling, and actin dynamics, and plays an important role in regulating cell junction configuration. GEFs activate small GTPases by exchanging bound GDP for free GTP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212874  Cd Length: 57  Bit Score: 38.35  E-value: 1.73e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-----WWFGEVQGQKGWFPKSYV 966
Cdd:cd11941      1 QVVAAYPFTARSKHEVSLQAGQPVTVLEPHDKkgspeWSLVEVNGQRGYVPSSYL 55
SH3_SH3RF1_1 cd11927
First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ...
746-802 1.75e-03

First Src Homology 3 domain of SH3 domain containing ring finger protein 1, an E3 ubiquitin-protein ligase; SH3RF1 is also called POSH (Plenty of SH3s) or SH3MD2 (SH3 multiple domains protein 2). It is a scaffold protein that acts as an E3 ubiquitin-protein ligase. It plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF1 also enhances the ubiquitination of ROMK1 potassium channel resulting in its increased endocytosis. It contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212860  Cd Length: 54  Bit Score: 38.01  E-value: 1.75e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwVDESqtgepgWLGGELKGKTGWFPANYAE 802
Cdd:cd11927      4 KALYNYEGKEPGDLKFSKGDIIILRRQ-VDEN------WYHGEVNGIHGFFPTNFVQ 53
SH3_ASAP cd11821
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
746-800 1.76e-03

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing proteins; ASAPs are Arf GTPase activating proteins (GAPs) and they function in regulating cell growth, migration, and invasion. They contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. Vertebrates contain at least three members, ASAP1, ASAP2, and ASAP3, but some ASAP3 proteins do not seem to harbor a C-terminal SH3 domain. ASAP1 and ASAP2 show GTPase activating protein (GAP) activity towards Arf1 and Arf5. They do not show GAP activity towards Arf6, but are able to mediate Arf6 signaling by binding stably to GTP-Arf6. ASAP3 is an Arf6-specific GAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212755 [Multi-domain]  Cd Length: 53  Bit Score: 38.06  E-value: 1.76e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwvdesqtGEPGWLGGELKGK---TGWFPANY 800
Cdd:cd11821      3 RALYDCQADNDDELTFSEGEIIVVTGE-------EDDEWWEGHIEGDpsrRGVFPVSF 53
SH3_Nck2_2 cd11902
Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
1011-1055 1.80e-03

Second Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The second SH3 domain of Nck appears to prefer ligands containing the APxxPxR motif. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212835 [Multi-domain]  Cd Length: 55  Bit Score: 38.06  E-value: 1.80e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1011 YTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11902      7 FAYVAEREDELSLVKGSRVTVMEKCSDgWWRGSYNGQIGWFPSNYV 52
SH3_Shank cd11832
Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank ...
744-798 1.83e-03

Src homology 3 domain of SH3 and multiple ankyrin repeat domains (Shank) proteins; Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. They bind a variety of membrane and cytosolic proteins, and exist in alternatively spliced isoforms. They are highly enriched in postsynaptic density (PSD) where they interact with the cytoskeleton and with postsynaptic membrane receptors including NMDA and glutamate receptors. They are crucial in the construction and organization of the PSD and dendritic spines of excitatory synapses. There are three members of this family (Shank1, Shank2, Shank3) which show distinct and cell-type specific patterns of expression. Shank1 is brain-specific; Shank2 is found in neurons, glia, endocrine cells, liver, and kidney; Shank3 is widely expressed. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212766  Cd Length: 50  Bit Score: 37.80  E-value: 1.83e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKGewvdesqTGEPGWLGGELKGKTGWFPA 798
Cdd:cd11832      1 YFIAVKSYSPQEEGEISLHKGDRVKVLS-------IGEGGFWEGSVRGRTGWFPS 48
SH3_Sorbs2_2 cd11923
Second Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
1006-1057 1.84e-03

Second Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212856 [Multi-domain]  Cd Length: 57  Bit Score: 37.97  E-value: 1.84e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1006 EFIAMYTYESSEQGDLTFQQGD-VILVTKKDGDWWTGTV--GDKAGVFPSNYVRL 1057
Cdd:cd11923      2 EAVAKYNFNADTNVELSLRKGDrVVLLKQVDQNWYEGKIpgTNRQGIFPVSYVEV 56
SH3_FCHSD_1 cd11761
First Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
1076-1135 1.85e-03

First Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212695 [Multi-domain]  Cd Length: 57  Bit Score: 38.11  E-value: 1.85e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1076 PEIAQVIASYTATGPEQLTLAPGQLI-LIRKKNPGGWwegeLQARGKKRQIGWFPANYVKL 1135
Cdd:cd11761      1 PVTCKVLYSYEAQRPDELTITEGEELeVIEDGDGDGW----VKARNKSGEVGYVPENYLQF 57
SH3_CIN85_2 cd12055
Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
1080-1134 1.88e-03

Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CIN85. SH3B has been shown to bind Cbl proline-rich peptides and ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212988 [Multi-domain]  Cd Length: 53  Bit Score: 38.05  E-value: 1.88e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARgkkrqIGWFPANYVK 1134
Cdd:cd12055      3 QVAFSYLPQNEDELELKVGDIIEVVGEVEEGWWEGVLNGK-----TGMFPSNFIK 52
SH3_Nephrocystin cd11770
Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain ...
1081-1135 1.94e-03

Src Homology 3 domain of Nephrocystin (or Nephrocystin-1); Nephrocystin contains an SH3 domain involved in signaling pathways that regulate cell adhesion and cytoskeletal organization. It is a protein that in humans is associated with juvenile nephronophthisis, an inherited kidney disease characterized by renal fibrosis that lead to chronic renal failure in children. It is localized in cell-cell junctions in renal duct cells, and is known to interact with Ack1, an activated Cdc42-associated kinase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212704 [Multi-domain]  Cd Length: 54  Bit Score: 38.06  E-value: 1.94e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGElQARGKKrqiGWFPANYVKL 1135
Cdd:cd11770      4 ALSDFQAEQEGDLSFKKGEVLRIISKRADGWWLAE-NSKGNR---GLVPKTYLKV 54
SH3_SH3RF2_3 cd11784
Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called ...
1007-1055 1.97e-03

Third Src Homology 3 domain of SH3 domain containing ring finger 2; SH3RF2 is also called POSHER (POSH-eliminating RING protein) or HEPP1 (heart protein phosphatase 1-binding protein). It acts as an anti-apoptotic regulator of the JNK pathway by binding to and promoting the degradation of SH3RF1 (or POSH), a scaffold protein that is required for pro-apoptotic JNK activation. It may also play a role in cardiac functions together with protein phosphatase 1. SH3RF2 contains an N-terminal RING finger domain and three SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF2. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212718  Cd Length: 55  Bit Score: 37.83  E-value: 1.97e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKKDGDWW---TGTVGDKAGVFPSNYV 1055
Cdd:cd11784      2 CVALHSYSAHRPEELELQKGEGVRVLGKFQEGWlrgLSLVTGRVGIFPSNYV 53
SH3_Sla1p_3 cd11775
Third Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates ...
1077-1135 2.00e-03

Third Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates endocytosis by playing a role as an adaptor protein in coupling components of the actin cytoskeleton to the endocytic machinery. It interacts with Abp1p, Las17p and Pan1p, which are activator proteins of actin-related protein 2/3 (Arp2/3). Sla1p contains multiple domains including three SH3 domains, a SAM (sterile alpha motif) domain, and a Sla1 homology domain 1 (SHD1), which binds to the NPFXD motif that is found in many integral membrane proteins such as the Golgi-localized Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and Dnf1p. The third SH3 domain of Sla1p can bind ubiquitin while retaining the ability to bind proline-rich ligands; monoubiquitination of target proteins signals internalization and sorting through the endocytic pathway. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212709 [Multi-domain]  Cd Length: 57  Bit Score: 38.07  E-value: 2.00e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1077 EIAQVIASYTATGPEQLTLAPGQ-LILIRKKNPGGWWEGELQARGKKrqiGWFPANYVKL 1135
Cdd:cd11775      1 KRGKVLYDFDAQSDDELTVKEGDvVYILDDKKSKDWWMVENVSTGKE---GVVPASYIEI 57
SH3_Amphiphysin cd11790
Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in ...
1009-1056 2.02e-03

Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in endocytosis and other membrane remodeling events. They exist in several isoforms and mammals possess two amphiphysin proteins from distinct genes. Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin, and synaptojanin. They function in synaptic vesicle endocytosis. Human autoantibodies to amphiphysin I hinder GABAergic signaling and contribute to the pathogenesis of paraneoplastic stiff-person syndrome. Some amphiphysin II isoforms, also called Bridging integrator 1 (Bin1), are localized in many different tissues and may function in intracellular vesicle trafficking. In skeletal muscle, Bin1 plays a role in the organization and maintenance of the T-tubule network. Mutations in Bin1 are associated with autosomal recessive centronuclear myopathy. Amphiphysins contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. The SH3 domain of amphiphysins bind proline-rich motifs present in binding partners such as dynamin, synaptojanin, and nsP3. It also belongs to a subset of SH3 domains that bind ubiquitin in a site that overlaps with the peptide binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212724 [Multi-domain]  Cd Length: 64  Bit Score: 38.08  E-value: 2.02e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVT------KKDGDWWTGTVGD--KAGVFPSNYVR 1056
Cdd:cd11790      7 ATHDYTAEDTDELTFEKGDVILVIpfddpeEQDEGWLMGVKEStgCRGVFPENFTE 62
SH3_MYO15B cd12068
Src Homology 3 domain of Myosin XVb; Myosin XVb, also called KIAA1783, was named based on its ...
1160-1211 2.05e-03

Src Homology 3 domain of Myosin XVb; Myosin XVb, also called KIAA1783, was named based on its similarity with myosin XVa. It is a transcribed and unprocessed pseudogene whose predicted amino acid sequence contains mutated or deleted amino acid residues that are normally conserved and important for myosin function. The related myosin XVa is important for normal growth of mechanosensory stereocilia of inner ear hair cells. Myosin XVa contains a unique N-terminal extension followed by a motor domain, light chain-binding IQ motifs, and a tail consisting of a pair of MyTH4-FERM tandems separated by a SH3 domain, and a PDZ domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 213001  Cd Length: 55  Bit Score: 37.93  E-value: 2.05e-03
                           10        20        30        40        50
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gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNKE--DPDWWKGEVNGQVGLFPSNYVKL 1211
Cdd:cd12068      2 VVALRSYITDDKSLLSFHRGDLIKLLPMAglEPGWQFGSTGGRSGLFPADIVQP 55
SH3_FCHSD2_2 cd11894
Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain ...
744-802 2.05e-03

Second Src Homology 3 domain of FCH and double SH3 domains protein 2; FCHSD2 has a domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. It has only been characterized in silico and its function is unknown. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212827  Cd Length: 56  Bit Score: 38.00  E-value: 2.05e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  744 YYRALYPFESRSHDEITIQPGDIVMVKGEwvdESQTGEPGWlGGELKGKTGWFPANYAE 802
Cdd:cd11894      1 FVKALYDYEGQTDDELSFPEGAIIRILNK---ENQDDDGFW-EGEFNGRIGVFPSVLVE 55
SH3_SH3RF3_2 cd11931
Second Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
1162-1209 2.07e-03

Second Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the second SH3 domain, located C-terminal of the first SH3 domain at the N-terminal half, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212864  Cd Length: 55  Bit Score: 37.98  E-value: 2.07e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1162 GMYDYTAQNDDE----LAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd11931      4 ALYDFEIKDKDQdkdcLTFTKDEILTVIRRVDENWAEGMLGDKIGIFPILYV 55
SH3_Intersectin_2 cd11837
Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor ...
745-800 2.11e-03

Second Src homology 3 domain (or SH3B) of Intersectin; Intersectins (ITSNs) are adaptor proteins that function in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. They are essential for initiating clathrin-coated pit formation. They bind to many proteins through their multidomain structure and facilitate the assembly of multimeric complexes. Vertebrates contain two ITSN proteins, ITSN1 and ITSN2, which exist in alternatively spliced short and long isoforms. The short isoforms contain two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoforms, in addition, contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. ITSN1 and ITSN2 are both widely expressed, with variations depending on tissue type and stage of development. The second SH3 domain (or SH3B) of ITSN1 has been shown to bind WNK and CdGAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212771 [Multi-domain]  Cd Length: 53  Bit Score: 37.73  E-value: 2.11e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVKgewvdESQtgEPGWLGGELKGKTGWFPANY 800
Cdd:cd11837      2 ATALYPWRAKKENHLSFAKGDIITVL-----EQQ--EMWWFGELEGGEEGWFPKSY 50
rad50 TIGR00606
rad50; All proteins in this family for which functions are known are involvedin recombination, ...
335-708 2.13e-03

rad50; All proteins in this family for which functions are known are involvedin recombination, recombinational repair, and/or non-homologous end joining.They are components of an exonuclease complex with MRE11 homologs. This family is distantly related to the SbcC family of bacterial proteins.This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University).


Pssm-ID: 129694 [Multi-domain]  Cd Length: 1311  Bit Score: 43.11  E-value: 2.13e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLPVTFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERE--------RQEQERKRQ 406
Cdd:TIGR00606  476 LDQELRKAERELSKAEKNSLTETLKKEVKSLQNEKADLDRKLRKLDQEMEQLNHHTTTRTQMEmltkdkmdKDEQIRKIK 555
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  407 LELEKQLEKQRELERQREEERRKEIERREAAKRELERQRQLEWERNRRQELLNQRNKEQedivvlkakkKTLEFELEALN 486
Cdd:TIGR00606  556 SRHSDELTSLLGYFPNKKQLEDWLHSKSKEINQTRDRLAKLNKELASLEQNKNHINNEL----------ESKEEQLSSYE 625
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  487 DKKHQLEGKlQDIRCRLTTQRQEIESTNKSRELRIAE-------ITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNS 559
Cdd:TIGR00606  626 DKLFDVCGS-QDEESDLERLKEEIEKSSKQRAMLAGAtavysqfITQLTDENQSCCPVCQRVFQTEAELQEFISDLQSKL 704
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  560 -LHRDSLVTLKRALEAKELARQHL-------RDQLDEVEK---ETRSKLQEIdifNNQLKELREIHNKQQLQKQKSMEAE 628
Cdd:TIGR00606  705 rLAPDKLKSTESELKKKEKRRDEMlglapgrQSIIDLKEKeipELRNKLQKV---NRDIQRLKNDIEEQETLLGTIMPEE 781
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  629 RLKQKEQ------ERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKL--KREESVKKKDGEEKGKQE 700
Cdd:TIGR00606  782 ESAKVCLtdvtimERFQMELKDVERKIAQQAAKLQGSDLDRTVQQVNQEKQEKQHELDTVvsKIELNRKLIQDQQEQIQH 861

                   ....*...
gi 1034627469  701 AQDKLGRL 708
Cdd:TIGR00606  862 LKSKTNEL 869
SH3_Abi1 cd11971
Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of ...
1082-1134 2.18e-03

Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of actin cytoskeletal reorganization through interactions with many protein complexes. It is part of WAVE, a nucleation-promoting factor complex, that links Rac 1 activation to actin polymerization causing lamellipodia protrusion at the plasma membrane. Abi1 interact with formins to promote protrusions at the leading edge of motile cells. It also is a target of alpha4 integrin, regulating membrane protrusions at sites of integrin engagement. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212904 [Multi-domain]  Cd Length: 59  Bit Score: 38.08  E-value: 2.18e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1082 IASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQargkkRQIGWFPANYVK 1134
Cdd:cd11971      5 IYDYSKDKDDELSFMEGAIIYVIKKNDDGWYEGVCN-----GVTGLFPGNYVE 52
SH3_ARHGEF9_like cd11828
Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this ...
1085-1135 2.22e-03

Src homology 3 domain of ARHGEF9-like Rho guanine nucleotide exchange factors; Members of this family contain a SH3 domain followed by RhoGEF (also called Dbl-homologous or DH) and Pleckstrin Homology (PH) domains. They include the Rho guanine nucleotide exchange factors ARHGEF9, ASEF (also called ARHGEF4), ASEF2, and similar proteins. GEFs activate small GTPases by exchanging bound GDP for free GTP. ARHGEF9 specifically activates Cdc42, while both ASEF and ASEF2 can activate Rac1 and Cdc42. ARHGEF9 is highly expressed in the brain and it interacts with gephyrin, a postsynaptic protein associated with GABA and glycine receptors. ASEF plays a role in angiogenesis and cell migration. ASEF2 is important in cell migration and adhesion dynamics. ASEF exists in an autoinhibited form and is activated upon binding of the tumor suppressor APC (adenomatous polyposis coli), leading to the activation of Rac1 or Cdc42. In its autoinhibited form, the SH3 domain of ASEF forms an extensive interface with the DH and PH domains, blocking the Rac binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212762 [Multi-domain]  Cd Length: 53  Bit Score: 37.75  E-value: 2.22e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1085 YTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARgkkrqIGWFPANYVKL 1135
Cdd:cd11828      8 HVTMDPEELGFKAGDVIEVLDMSDKDWWWGSIRDE-----EGWFPASFVRL 53
FRQ1 COG5126
Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms];
212-284 2.23e-03

Ca2+-binding protein, EF-hand superfamily [Signal transduction mechanisms];


Pssm-ID: 444056 [Multi-domain]  Cd Length: 137  Bit Score: 40.16  E-value: 2.23e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  212 VAEWAVPQSSRLKYRQLFNSHDKTMSGHLTGPQARTILMQSSLPQAQLASIWNLSDIDQDGKLTAEEFILAMH 284
Cdd:COG5126     58 GMESLFEATVEPFARAAFDLLDTDGDGKISADEFRRLLTALGVSEEEADELFARLDTDGDGKISFEEFVAAVR 130
SH3_Nebulin_C cd11933
C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 ...
915-969 2.30e-03

C-terminal Src Homology 3 domain of Nebulin; Nebulin is a giant filamentous protein (600-900 kD) that is expressed abundantly in skeletal muscle. It binds to actin thin filaments and regulates its assembly and function. Nebulin was thought to be part of a molecular ruler complex that is critical in determining the lengths of actin thin filaments in skeletal muscle since its length, which varies due to alternative splicing, correlates with the length of thin filaments in various muscle types. Recent studies indicate that nebulin regulates thin filament length by stabilizing the filaments and preventing depolymerization. Mutations in nebulin can cause nemaline myopathy, characterized by muscle weakness which can be severe and can lead to neonatal lethality. Nebulin contains an N-terminal LIM domain, many nebulin repeats/super repeats, and a C-terminal SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212866 [Multi-domain]  Cd Length: 58  Bit Score: 38.06  E-value: 2.30e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  915 GLQAQALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWFGEVQ--GQKGWFPKSYVKLI 969
Cdd:cd11933      1 GKSFRAMYDYRAADDDEVSFKDGDTIVNVQTIDEgWMYGTVQrtGKTGMLPANYVEAI 58
YhaN COG4717
Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];
295-504 2.31e-03

Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];


Pssm-ID: 443752 [Multi-domain]  Cd Length: 641  Bit Score: 42.83  E-value: 2.31e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  295 LPPVLPPEYIPPSFRRVRSGSGISVISSTSVDQRLPEEpvLEDEQQQLEKKLPVTFEDKKRENFERGN--LELEKRRQAL 372
Cdd:COG4717    330 LPPDLSPEELLELLDRIEELQELLREAEELEEELQLEE--LEQEIAALLAEAGVEDEEELRAALEQAEeyQELKEELEEL 407
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  373 LEQ-QRKEQERLAQLERAEQERKERERQEQERKRQlELEKQLEKQRELERQREeerrkeierreAAKRELERQRQLEWER 451
Cdd:COG4717    408 EEQlEELLGELEELLEALDEEELEEELEELEEELE-ELEEELEELREELAELE-----------AELEQLEEDGELAELL 475
                          170       180       190       200       210
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  452 NRRQELLNQRNKEQEDIVVLKAKKKTLEFELEAL-NDKKHQLEGKLQDIRCRLT 504
Cdd:COG4717    476 QELEELKAELRELAEEWAALKLALELLEEAREEYrEERLPPVLERASEYFSRLT 529
SH3_Amphiphysin cd11790
Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in ...
918-969 2.32e-03

Src Homology 3 domain of Amphiphysin and related domains; Amphiphysins function primarily in endocytosis and other membrane remodeling events. They exist in several isoforms and mammals possess two amphiphysin proteins from distinct genes. Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin, and synaptojanin. They function in synaptic vesicle endocytosis. Human autoantibodies to amphiphysin I hinder GABAergic signaling and contribute to the pathogenesis of paraneoplastic stiff-person syndrome. Some amphiphysin II isoforms, also called Bridging integrator 1 (Bin1), are localized in many different tissues and may function in intracellular vesicle trafficking. In skeletal muscle, Bin1 plays a role in the organization and maintenance of the T-tubule network. Mutations in Bin1 are associated with autosomal recessive centronuclear myopathy. Amphiphysins contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. The SH3 domain of amphiphysins bind proline-rich motifs present in binding partners such as dynamin, synaptojanin, and nsP3. It also belongs to a subset of SH3 domains that bind ubiquitin in a site that overlaps with the peptide binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212724 [Multi-domain]  Cd Length: 64  Bit Score: 38.08  E-value: 2.32e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVL------EQQDMWWFG--EVQGQKGWFPKSYVKLI 969
Cdd:cd11790      5 VRATHDYTAEDTDELTFEKGDVILVIpfddpeEQDEGWLMGvkESTGCRGVFPENFTERI 64
OmpH smart00935
Outer membrane protein (OmpH-like); This family includes outer membrane proteins such as OmpH ...
335-416 2.50e-03

Outer membrane protein (OmpH-like); This family includes outer membrane proteins such as OmpH among others. Skp (OmpH) has been characterized as a molecular chaperone that interacts with unfolded proteins as they emerge in the periplasm from the Sec translocation machinery.


Pssm-ID: 214922 [Multi-domain]  Cd Length: 140  Bit Score: 39.87  E-value: 2.50e-03
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469   335 LEDEQQQLEKKLpvtfeDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLE 414
Cdd:smart00935   23 LEKEFKKRQAEL-----EKLEKELQKLKEKLQKDAATLSEAAREKKEKELQKKVQEFQRKQQKLQQDLQKRQQEELQKIL 97

                    ..
gi 1034627469   415 KQ 416
Cdd:smart00935   98 DK 99
EFh cd00051
EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal ...
224-284 2.51e-03

EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal modulators; most examples in this alignment model have 2 active canonical EF hands. Ca2+ binding induces a conformational change in the EF-hand motif, leading to the activation or inactivation of target proteins. EF-hands tend to occur in pairs or higher copy numbers.


Pssm-ID: 238008 [Multi-domain]  Cd Length: 63  Bit Score: 37.91  E-value: 2.51e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  224 KYRQLFNSHDKTMSGHLTGPQARTIL--MQSSLPQAQLASIWNLSDIDQDGKLTAEEFILAMH 284
Cdd:cd00051      1 ELREAFRLFDKDGDGTISADELKAALksLGEGLSEEEIDEMIREVDKDGDGKIDFEEFLELMA 63
SH3_Tks_3 cd12017
Third Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
1165-1209 2.54e-03

Third Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the third SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212950  Cd Length: 53  Bit Score: 37.43  E-value: 2.54e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*
gi 1034627469 1165 DYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYV 1209
Cdd:cd12017      7 EFQATIQDGISFQKGQKVEVIDKNPSGWWYVKIDGKEGWAPSSYI 51
APG6_N pfam17675
Apg6 coiled-coil region; In yeast, 15 Apg proteins coordinate the formation of autophagosomes. ...
576-686 2.56e-03

Apg6 coiled-coil region; In yeast, 15 Apg proteins coordinate the formation of autophagosomes. Autophagy is a bulk degradation process induced by starvation in eukaryotic cells. Apg6/Vps30p has two distinct functions in the autophagic process, either associated with the membrane or in a retrieval step of the carboxypeptidase Y sorting pathway.


Pssm-ID: 465452 [Multi-domain]  Cd Length: 127  Bit Score: 39.50  E-value: 2.56e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  576 ELARQHLRDQLDEVEKetrsklqEIDIFNNQLKELREIHNKQQLQKQKsmEAERLKQKEQE--RKIIELEKQKE--EAQR 651
Cdd:pfam17675    8 DLLLEELDKQLEDAEK-------ERDAYISFLKKLEKETPEELEELEK--ELEKLEKEEEEllQELEELEKEREelDAEL 78
                           90       100       110
                   ....*....|....*....|....*....|....*
gi 1034627469  652 RAQERDKQWLEhvQQEDEHQRPRKLHEEEKLKREE 686
Cdd:pfam17675   79 EALEEELEALD--EEEEEFWREYNALQLQLLEFQD 111
SH3_RIM-BP_3 cd12013
Third Src homology 3 domain of Rab3-interacting molecules (RIMs) binding proteins; RIMs ...
1008-1056 2.57e-03

Third Src homology 3 domain of Rab3-interacting molecules (RIMs) binding proteins; RIMs binding proteins (RBPs, RIM-BPs) associate with calcium channels present in photoreceptors, neurons, and hair cells; they interact simultaneously with specific calcium channel subunits, and active zone proteins, RIM1 and RIM2. RIMs are part of the matrix at the presynaptic active zone and are associated with synaptic vesicles through their interaction with the small GTPase Rab3. RIM-BPs play a role in regulating synaptic transmission by serving as adaptors and linking calcium channels with the synaptic vesicle release machinery. RIM-BPs contain three SH3 domains and two to three fibronectin III repeats. Invertebrates contain one, while vertebrates contain at least two RIM-BPs, RIM-BP1 and RIM-BP2. RIM-BP1 is also called peripheral-type benzodiazapine receptor associated protein 1 (PRAX-1). Mammals contain a third protein, RIM-BP3. RIM-BP1 and RIM-BP2 are predominantly expressed in the brain where they display overlapping but distinct expression patterns, while RIM-BP3 is almost exclusively expressed in the testis and is essential in spermiogenesis. The SH3 domains of RIM-BPs bind to the PxxP motifs of RIM1, RIM2, and L-type (alpha1D) and N-type (alpha1B) calcium channel subunits. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212946  Cd Length: 61  Bit Score: 37.74  E-value: 2.57e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469 1008 IAMYTYESSE-------QGDLTFQQGDVILV---TKKDGdWWTGTVGDKAGVFPSNYVR 1056
Cdd:cd12013      3 VALFDYDPREsspnvdaEVELSFRAGDIITVfgeMDEDG-FYYGELNGQRGLVPSNFLE 60
PRK02224 PRK02224
DNA double-strand break repair Rad50 ATPase;
352-679 2.64e-03

DNA double-strand break repair Rad50 ATPase;


Pssm-ID: 179385 [Multi-domain]  Cd Length: 880  Bit Score: 42.72  E-value: 2.64e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  352 DKKRENFErgnlELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLEKQRELERQREEerrkei 431
Cdd:PRK02224   471 EEDRERVE----ELEAELEDLEEEVEEVEERLERAEDLVEAEDRIERLEERREDLEELIAERRETIEEKRERAE------ 540
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  432 eRREAAKRELERQRQlEWeRNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNdkkhqlegKLQDIRCRLTTQRQEIE 511
Cdd:PRK02224   541 -ELRERAAELEAEAE-EK-REAAAEAEEEAEEAREEVAELNSKLAELKERIESLE--------RIRTLLAAIADAEDEIE 609
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  512 STNKSRElriaeithlqqqlqesqqmlgrlipEKQILNDQLKQvqqnslhrdslvtlkrALEAKELARQHLRDQLDEvek 591
Cdd:PRK02224   610 RLREKRE-------------------------ALAELNDERRE----------------RLAEKRERKRELEAEFDE--- 645
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  592 etrsklqeidifnNQLKELREihNKQQLQKQKSMEAERLKQKEQERKiiELEKQ----KEEAQRRAQERDkqwlEHVQQE 667
Cdd:PRK02224   646 -------------ARIEEARE--DKERAEEYLEQVEEKLDELREERD--DLQAEigavENELEELEELRE----RREALE 704
                          330
                   ....*....|..
gi 1034627469  668 DEHQRPRKLHEE 679
Cdd:PRK02224   705 NRVEALEALYDE 716
SH3_Tec_like cd11768
Src Homology 3 domain of Tec-like Protein Tyrosine Kinases; The Tec (Tyrosine kinase expressed ...
1080-1134 2.65e-03

Src Homology 3 domain of Tec-like Protein Tyrosine Kinases; The Tec (Tyrosine kinase expressed in hepatocellular carcinoma) subfamily is composed of Tec, Btk, Bmx (Etk), Itk (Tsk, Emt), Rlk (Txk), and similar proteins. They are cytoplasmic (or nonreceptor) tyr kinases containing Src homology protein interaction domains (SH3, SH2) N-terminal to the catalytic tyr kinase domain. Most Tec subfamily members (except Rlk) also contain an N-terminal pleckstrin homology (PH) domain, which binds the products of PI3K and allows membrane recruitment and activation. In addition, some members contain the Tec homology (TH) domain, which contains proline-rich and zinc-binding regions. Tec kinases are expressed mainly by haematopoietic cells, although Tec and Bmx are also found in endothelial cells. B-cells express Btk and Tec, while T-cells express Itk, Txk, and Tec. Collectively, Tec kinases are expressed in a variety of myeloid cells such as mast cells, platelets, macrophages, and dendritic cells. Each Tec kinase shows a distinct cell-type pattern of expression. The function of Tec kinases in lymphoid cells have been studied extensively. They play important roles in the development, differentiation, maturation, regulation, survival, and function of B-cells and T-cells. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212702 [Multi-domain]  Cd Length: 54  Bit Score: 37.64  E-value: 2.65e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1080 QVIA--SYTATGPEQLTLAPGQ-LILIRKKNPGgWWegelQARGKKRQIGWFPANYVK 1134
Cdd:cd11768      1 IVVAlyDFQPIEPGDLPLEKGEeYVVLDDSNEH-WW----RARDKNGNEGYIPSNYVT 53
C2B_Synaptotagmin-17 cd08410
C2 domain second repeat present in Synaptotagmin 17; Synaptotagmin is a membrane-trafficking ...
1596-1680 2.65e-03

C2 domain second repeat present in Synaptotagmin 17; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 17 is located in the brain, kidney, and prostate and is thought to be a peripheral membrane protein. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176055 [Multi-domain]  Cd Length: 135  Bit Score: 39.87  E-value: 2.65e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHITKT-----IQDTLNPKWNSNCQFFI--RDLEQEVLCITVFERDQ 1668
Cdd:cd08410     14 GRLNVDIIRAKQLLQTDMSQGSDPFVKIQLVHGLKLIKTkktscMRGTIDPFYNESFSFKVpqEELENVSLVFTVYGHNV 93
                           90
                   ....*....|..
gi 1034627469 1669 FSPDDFLGRTEI 1680
Cdd:cd08410     94 KSSNDFIGRIVI 105
DUF4670 pfam15709
Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins ...
338-446 2.67e-03

Domain of unknown function (DUF4670); This family of proteins is found in eukaryotes. Proteins in this family are typically between 373 and 763 amino acids in length.


Pssm-ID: 464815 [Multi-domain]  Cd Length: 522  Bit Score: 42.25  E-value: 2.67e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  338 EQQQLEKKLPVTFEDKKRENFERGnlELEKRRQALLEQQ-RKEQERLAqlERAEQERKE--RERQEQERKRQLELEKQle 414
Cdd:pfam15709  424 QQEEFRRKLQELQRKKQQEEAERA--EAEKQRQKELEMQlAEEQKRLM--EMAEEERLEyqRQKQEAEEKARLEAEER-- 497
                           90       100       110
                   ....*....|....*....|....*....|..
gi 1034627469  415 kqrelerQREEERRKEIERREAAKRELERQRQ 446
Cdd:pfam15709  498 -------RQKEEEAARLALEEAMKQAQEQARQ 522
SH3_p67phox_N cd11871
N-terminal (or first) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, ...
1163-1210 2.69e-03

N-terminal (or first) Src Homology 3 domain of the p67phox subunit of NADPH oxidase; p67phox, also called Neutrophil cytosol factor 2 (NCF-2), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox plays a regulatory role and contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. It binds, via its C-terminal SH3 domain, to a proline-rich region of p47phox and upon activation, this complex assembles with flavocytochrome b558, the Nox2-p22phox heterodimer. Concurrently, RacGTP translocates to the membrane and interacts with the TPR domain of p67phox, which leads to the activation of NADPH oxidase. The PB1 domain of p67phox binds to its partner PB1 domain in p40phox, and this facilitates the assembly of p47phox-p67phox at the membrane. The N-terminal SH3 domain increases the affinity of p67phox for the oxidase complex. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212804  Cd Length: 54  Bit Score: 37.57  E-value: 2.69e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469 1163 MYDYTAQNDDELAFNKGQIINVLNKEDPDWWKGEVNGQVGLFPSNYVK 1210
Cdd:cd11871      5 LYEFVPETKEELQVLPGNIVFVLKKGTDNWATVVFNGKKGLVPCNFLE 52
Crescentin pfam19220
Crescentin protein; This entry represents a bacterial equivalent to Intermediate Filament ...
364-687 2.69e-03

Crescentin protein; This entry represents a bacterial equivalent to Intermediate Filament proteins, named crescentin, whose cytoskeletal function is required for the vibrioid and helical shapes of Caulobacter crescentus. Without crescentin, the cells adopt a straight-rod morphology. Crescentin has characteriztic features of IF proteins including the ability to assemble into filaments in vitro without energy or cofactor requirements. In vivo, crescentin forms a helical structure that colocalizes with the inner cell curvatures beneath the cytoplasmic membrane.


Pssm-ID: 437057 [Multi-domain]  Cd Length: 401  Bit Score: 41.98  E-value: 2.69e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  364 ELEKRRQALLEQQRKEQERLAQLERAEQERkERERQEQeRKRQLELEKQLEkqrelerqreeerrkeierreaakrELER 443
Cdd:pfam19220   73 GLTRRLSAAEGELEELVARLAKLEAALREA-EAAKEEL-RIELRDKTAQAE-------------------------ALER 125
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  444 QRQLEWERNR-------------------RQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLT 504
Cdd:pfam19220  126 QLAAETEQNRaleeenkalreeaqaaekaLQRAEGELATARERLALLEQENRRLQALSEEQAAELAELTRRLAELETQLD 205
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  505 TQRQEIESTnksrELRIAEIThlqqqlqesqqmlgrliPEKQILNDQLKqvQQNSLHRDSLVTLKRALEAKEL------- 577
Cdd:pfam19220  206 ATRARLRAL----EGQLAAEQ-----------------AERERAEAQLE--EAVEAHRAERASLRMKLEALTAraaateq 262
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  578 ----ARQHLRDQ----------LDEVEKETRSKLQEIDIFNNQLKELREIHN-----KQQLQKQKSMEAERLKQKEQ--- 635
Cdd:pfam19220  263 llaeARNQLRDRdeairaaerrLKEASIERDTLERRLAGLEADLERRTQQFQemqraRAELEERAEMLTKALAAKDAale 342
                          330       340       350       360       370
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  636 --ERKIIELEKQKEEAQRRaQERDKQWLEhvqqedehQRPRKLHEEekLKREES 687
Cdd:pfam19220  343 raEERIASLSDRIAELTKR-FEVERAALE--------QANRRLKEE--LQRERA 385
C2B_Copine cd04047
C2 domain second repeat in Copine; There are 2 copies of the C2 domain present in copine, a ...
1603-1690 2.71e-03

C2 domain second repeat in Copine; There are 2 copies of the C2 domain present in copine, a protein involved in membrane trafficking, protein-protein interactions, and perhaps even cell division and growth. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176012 [Multi-domain]  Cd Length: 110  Bit Score: 39.09  E-value: 2.71e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1603 VEGIELKPCRSHGKSNPYCEVTMGS------QCHITKTIQDTLNPKWNsncQFFIR-------DLEQEVLcITVFERDQF 1669
Cdd:cd04047      7 FSGKKLDKKDFFGKSDPFLEISRQSedgtwvLVYRTEVIKNTLNPVWK---PFTIPlqklcngDYDRPIK-IEVYDYDSS 82
                           90       100
                   ....*....|....*....|.
gi 1034627469 1670 SPDDFLGRTEIRVADIKKDQG 1690
Cdd:cd04047     83 GKHDLIGEFETTLDELLKSSP 103
PRK01156 PRK01156
chromosome segregation protein; Provisional
453-686 2.71e-03

chromosome segregation protein; Provisional


Pssm-ID: 100796 [Multi-domain]  Cd Length: 895  Bit Score: 42.58  E-value: 2.71e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  453 RRQELLNQR---NKEQEDIVVLKAKKKTLEFELEALNDKKHQLegklqdircrlttQRQEIESTNKSRELRIAEITHLQq 529
Cdd:PRK01156   150 QRKKILDEIleiNSLERNYDKLKDVIDMLRAEISNIDYLEEKL-------------KSSNLELENIKKQIADDEKSHSI- 215
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  530 qlqesqqmlgrLIPEKQILNDQLKQVQQNSLHRDSlvTLKRALEAKELArqhlrDQLDEVEKETRSKLQEIDIFNNQLKE 609
Cdd:PRK01156   216 -----------TLKEIERLSIEYNNAMDDYNNLKS--ALNELSSLEDMK-----NRYESEIKTAESDLSMELEKNNYYKE 277
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  610 LREIHN--------------------KQQLQKQKSM----EAERLKQKEQERKIIELEK---QKEEAQRRAQERDKQWLE 662
Cdd:PRK01156   278 LEERHMkiindpvyknrnyindyfkyKNDIENKKQIlsniDAEINKYHAIIKKLSVLQKdynDYIKKKSRYDDLNNQILE 357
                          250       260
                   ....*....|....*....|....
gi 1034627469  663 HVQQEDEHQRPRKLHEEEKLKREE 686
Cdd:PRK01156   358 LEGYEMDYNSYLKSIESLKKKIEE 381
C2_PLC_like cd00275
C2 domain present in Phosphoinositide-specific phospholipases C (PLC); PLCs are involved in ...
1615-1687 2.79e-03

C2 domain present in Phosphoinositide-specific phospholipases C (PLC); PLCs are involved in the hydrolysis of phosphatidylinositol-4,5-bisphosphate (PIP2) to d-myo-inositol-1,4,5-trisphosphate (1,4,5-IP3) and sn-1,2-diacylglycerol (DAG). 1,4,5-IP3 and DAG are second messengers in eukaryotic signal transduction cascades. PLC is composed of a N-terminal PH domain followed by a series of EF hands, a catalytic TIM barrel and a C-terminal C2 domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. Members here have a type-II topology.


Pssm-ID: 175974 [Multi-domain]  Cd Length: 128  Bit Score: 39.45  E-value: 2.79e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1615 GKSNPYCEVTM-----GSQC-HITKTIQD-TLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSpDDFLGRTEIRVADIKK 1687
Cdd:cd00275     23 SIVDPYVEVEIhglpaDDSAkFKTKVVKNnGFNPVWNETFEFDVTVPELAFLRFVVYDEDSGD-DDFLGQACLPLDSLRQ 101
SH3_Sla1p_1 cd11773
First Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates ...
1009-1054 2.82e-03

First Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates endocytosis by playing a role as an adaptor protein in coupling components of the actin cytoskeleton to the endocytic machinery. It interacts with Abp1p, Las17p and Pan1p, which are activator proteins of actin-related protein 2/3 (Arp2/3). Sla1p contains multiple domains including three SH3 domains, a SAM (sterile alpha motif) domain, and a Sla1 homology domain 1 (SHD1), which binds to the NPFXD motif that is found in many integral membrane proteins such as the Golgi-localized Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and Dnf1p. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212707 [Multi-domain]  Cd Length: 57  Bit Score: 37.40  E-value: 2.82e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVI-LVTKKDGDWWT----GTVGD---KAGVFPSNY 1054
Cdd:cd11773      4 ALYDYEPQTEDELTIQEDDILyLLEKSDDDWWKvklkVNSSDddePVGLVPATY 57
SH3_PLCgamma2 cd11969
Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in ...
919-967 2.82e-03

Src homology 3 domain of Phospholipase C (PLC) gamma 2; PLCgamma2 is primarily expressed in haematopoietic cells, specifically in B cells. It is activated by tyrosine phosphorylation by B cell receptor (BCR) kinases and is recruited to the plasma membrane where its substrate is located. It is required in pre-BCR signaling and in the maturation of B cells. PLCs catalyze the hydrolysis of phosphatidylinositol (4,5)-bisphosphate [PtdIns(4,5)P2] to produce Ins(1,4,5)P3 and diacylglycerol (DAG). Ins(1,4,5)P3 initiates the calcium signaling cascade while DAG functions as an activator of PKC. PLCgamma contains a Pleckstrin homology (PH) domain followed by an elongation factor (EF) domain, two catalytic regions of PLC domains that flank two tandem SH2 domains, followed by a SH3 domain and C2 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212902  Cd Length: 55  Bit Score: 37.51  E-value: 2.82e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVI-TVLEQQDMWWFGEVQGQ-KGWFPKSYVK 967
Cdd:cd11969      3 KALYDYRAKRSDELSFCKGALIhNVSKETGGWWKGDYGGKvQHYFPSNYVE 53
SH3_ARHGAP9_like cd11888
Src Homology 3 domain of Rho GTPase-activating protein 9 and similar proteins; This subfamily ...
1164-1208 2.88e-03

Src Homology 3 domain of Rho GTPase-activating protein 9 and similar proteins; This subfamily is composed of Rho GTPase-activating proteins including mammalian ARHGAP9, and vertebrate ARHGAPs 12 and 27. RhoGAPs (or ARHGAPs) bind to Rho proteins and enhance the hydrolysis rates of bound GTP. ARHGAP9 functions as a GAP for Rac and Cdc42, but not for RhoA. It negatively regulates cell migration and adhesion. It also acts as a docking protein for the MAP kinases Erk2 and p38alpha, and may facilitate cross-talk between the Rho GTPase and MAPK pathways to control actin remodeling. ARHGAP27, also called CAMGAP1, shows GAP activity towards Rac1 and Cdc42. It binds the adaptor protein CIN85 and may play a role in clathrin-mediated endocytosis. ARHGAP12 has been shown to display GAP activity towards Rac1. It plays a role in regulating HFG-driven cell growth and invasiveness. ARHGAPs in this subfamily contain SH3, WW, Pleckstin homology (PH), and RhoGAP domains. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212821 [Multi-domain]  Cd Length: 54  Bit Score: 37.35  E-value: 2.88e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1164 YDYTAQNDDELAFNKGQIINVLNKEDPDWW--KGEVNGQVGLFPSNY 1208
Cdd:cd11888      8 FEYTGKDGRKVSIKEGERFLLLKKSNDDWWqvRRPGDSKPFYVPAQY 54
SH3_FCHSD_1 cd11761
First Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of ...
747-803 2.94e-03

First Src Homology 3 domain of FCH and double SH3 domains proteins; This group is composed of FCH and double SH3 domains protein 1 (FCHSD1) and FCHSD2. These proteins have a common domain structure consisting of an N-terminal F-BAR (FES-CIP4 Homology and Bin/Amphiphysin/Rvs), two SH3, and C-terminal proline-rich domains. They have only been characterized in silico and their functions remain unknown. This group also includes the insect protein, nervous wreck, which acts as a regulator of synaptic growth signaling. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212695 [Multi-domain]  Cd Length: 57  Bit Score: 37.34  E-value: 2.94e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKgEWVDESqtgepGWLGG-ELKGKTGWFPANYAEK 803
Cdd:cd11761      6 VLYSYEAQRPDELTITEGEELEVI-EDGDGD-----GWVKArNKSGEVGYVPENYLQF 57
SH3_SH3RF_3 cd11783
Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and ...
745-800 3.04e-03

Third Src Homology 3 domain of SH3 domain containing ring finger 1 (SH3RF1), SH3RF3, and similar domains; SH3RF1 (or POSH) and SH3RF3 (or POSH2) are scaffold proteins that function as E3 ubiquitin-protein ligases. They contain an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle of SH3RF1 and SH3RF3, and similar domains. SH3RF1 plays a role in calcium homeostasis through the control of the ubiquitin domain protein Herp. It may also have a role in regulating death receptor mediated and JNK mediated apoptosis. SH3RF3 interacts with p21-activated kinase 2 (PAK2) and GTP-loaded Rac1. It may play a role in regulating JNK mediated apoptosis in certain conditions. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212717 [Multi-domain]  Cd Length: 55  Bit Score: 37.37  E-value: 3.04e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVKGEWVDesqtgepGWLGGE--LKGKTGWFPANY 800
Cdd:cd11783      2 YVALYPYKPQKPDELELRKGEMYTVTEKCQD-------GWFKGTslRTGQSGVFPGNY 52
SH3_Sla1p_2 cd11774
Second Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates ...
1009-1055 3.11e-03

Second Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates endocytosis by playing a role as an adaptor protein in coupling components of the actin cytoskeleton to the endocytic machinery. It interacts with Abp1p, Las17p and Pan1p, which are activator proteins of actin-related protein 2/3 (Arp2/3). Sla1p contains multiple domains including three SH3 domains, a SAM (sterile alpha motif) domain, and a Sla1 homology domain 1 (SHD1), which binds to the NPFXD motif that is found in many integral membrane proteins such as the Golgi-localized Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and Dnf1p. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212708 [Multi-domain]  Cd Length: 52  Bit Score: 37.44  E-value: 3.11e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILV-TKKDGDW-WTGTVGDKAGVFPSNYV 1055
Cdd:cd11774      4 ALYDYDKQTEEELSFNEGDTLDVyDDSDSDWiLVGFNGTQFGFVPANYI 52
SH3_Vinexin_1 cd11921
First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3) ...
1020-1057 3.15e-03

First Src Homology 3 domain of Vinexin, also called Sorbin and SH3 domain containing 3 (Sorbs3); Vinexin is also called Sorbs3, SH3P3, and SH3-containing adapter molecule 1 (SCAM-1). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. Vinexin was first identified as a vinculin binding protein; it is co-localized with vinculin at cell-ECM and cell-cell adhesion sites. There are several splice variants of vinexin: alpha, which contains the SoHo and three SH3 domains and displays tissue-specific expression; and beta, which contains only the three SH3 domains and is widely expressed. Vinexin alpha stimulates the accumulation of F-actin at focal contact sites. Vinexin also promotes keratinocyte migration and wound healing. The SH3 domains of vinexin have been reported to bind a number of ligands including vinculin, WAVE2, DLG5, Abl, and Cbl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212854  Cd Length: 55  Bit Score: 37.59  E-value: 3.15e-03
                           10        20        30
                   ....*....|....*....|....*....|....*....
gi 1034627469 1020 DLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11921     16 ELTLQKGDIVYIHKEvDKNWLEGEHHGRVGIFPANYVEV 54
TolA COG3064
Membrane protein TolA involved in colicin uptake [Cell wall/membrane/envelope biogenesis];
327-707 3.15e-03

Membrane protein TolA involved in colicin uptake [Cell wall/membrane/envelope biogenesis];


Pssm-ID: 442298 [Multi-domain]  Cd Length: 485  Bit Score: 41.95  E-value: 3.15e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  327 QRLPEEPVLEDEQQQLEKKLPVTFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERaEQERKERERQEQERKRQ 406
Cdd:COG3064     16 ERLEQAEAEKRAAAEAEQKAKEEAEEERLAELEAKRQAEEEAREAKAEAEQRAAELAAEAAK-KLAEAEKAAAEAEKKAA 94
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  407 LELEKQLEKQRELERQREEERRKEIERREAAKRELERQRQLEWErNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALN 486
Cdd:COG3064     95 AEKAKAAKEAEAAAAAEKAAAAAEKEKAEEAKRKAEEEAKRKAE-EERKAAEAEAAAKAEAEAARAAAAAAAAAAAAAAR 173
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  487 DKKHQLEGKLQDIRCRLTTQRQEIESTNKSRELRIAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSLHRDSLV 566
Cdd:COG3064    174 AAAGAAAALVAAAAAAVEAADTAAAAAAALAAAAAAAAADAALLALAVAARAAAASREAALAAVEATEEAALGGAEEAAD 253
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  567 TLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHnkqqlqkQKSMEAERLKQKEQERKIIELEKQK 646
Cdd:COG3064    254 LAAVGVLGAALAAAAAGAAALSSGLVVVAAALAGLAAAAAGLVLDDSA-------ALAAELLGAVAAEEAVLAAAAAAGA 326
                          330       340       350       360       370       380
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  647 EEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQEAQDKLGR 707
Cdd:COG3064    327 LVVRGGGAASLEAALSLLAAGAAAAAAGAGALATGALGDALAAEAAGALLLGKLADVEEAA 387
SH3_SKAP2 cd12045
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 2; SKAP2, also called ...
919-966 3.16e-03

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 2; SKAP2, also called SKAP55-Related (SKAP55R) or SKAP55 homolog (SKAP-HOM or SKAP55-HOM), is an immune cell-specific adaptor protein that plays an important role in adhesion and migration of B-cells and macrophages. Binding partners include ADAP (adhesion and degranulation-promoting adaptor protein), YopH, SHPS1, and HPK1. SKAP2 has also been identified as a substrate for lymphoid-specific tyrosine phosphatase (Lyp), which has been implicated in a wide variety of autoimmune diseases. It contains a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. Like SKAP1, SKAP2 is expected to bind primarily to a proline-rich region of ADAP through its SH3 domain; its degradation may be regulated by ADAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212978  Cd Length: 53  Bit Score: 37.19  E-value: 3.16e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQ-DM--WWFGEVQGQKGWFPKSYV 966
Cdd:cd12045      3 QGLWDCTGDQPDELSFKRGDTIYILSKEyNRfgWWVGEMKGTIGLVPKAYI 53
SH3_p47phox_2 cd12022
Second or C-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also ...
1007-1055 3.17e-03

Second or C-terminal Src homology 3 domain of the p47phox subunit of NADPH oxidase, also called Neutrophil Cytosolic Factor 1; p47phox, or NCF1, is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox), which plays a key role in the ability of phagocytes to defend against bacterial infections. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p47phox is required for activation of NADH oxidase and plays a role in translocation. It contains an N-terminal Phox homology (PX) domain, tandem SH3 domains (N-SH3 and C-SH3), a polybasic/autoinhibitory region, and a C-terminal proline-rich region (PRR). This model characterizes the second SH3 domain (or C-SH3) of p47phox. In its inactive state, the tandem SH3 domains interact intramolecularly with the autoinhibitory region; upon activation, the tandem SH3 domains are exposed through a conformational change, resulting in their binding to the PRR of p22phox and the activation of NADPH oxidase. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212955 [Multi-domain]  Cd Length: 53  Bit Score: 37.51  E-value: 3.17e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKK--DGdWWTGTVGDKAGVFPSNYV 1055
Cdd:cd12022      2 YITIKAYTAVEEDELTLLEGEAIEVIHKllDG-WWVVRKGEVTGYFPSMYL 51
Lebercilin pfam15619
Ciliary protein causing Leber congenital amaurosis disease; Lebercilin is a family of ...
353-496 3.21e-03

Ciliary protein causing Leber congenital amaurosis disease; Lebercilin is a family of eukaryotic ciliary proteins. Mutations in the gene, LCA5, are implicated in the disease Leber congenital amaurosis. In photoreceptors, lebercilin is uniquely localized at the cilium that bridges the inner and outer segments. Lebercilin functions as an integral element of selective protein transport through photoreceptor cilia. Lebercilin specifically interacts with the intraflagellar transport (IFT), and disruption of IFT can lead to Leber congenital amaurosis.


Pssm-ID: 464776 [Multi-domain]  Cd Length: 193  Bit Score: 40.66  E-value: 3.21e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  353 KKRENFERGNLELEKRRQALLeqqrKEQERLAQLERAEQERKERERQEQERKRQlELEKQLEKQRElerqreeerrkeie 432
Cdd:pfam15619   78 RLQEKERDLERKLKEKEAELL----RLRDQLKRLEKLSEDKNLAEREELQKKLE-QLEAKLEDKDE-------------- 138
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  433 rreaAKRELERQRQLEwERNRRQELLNQRNKEQEdivvLKAKKKTLEFELEALNDKKHQLEGKL 496
Cdd:pfam15619  139 ----KIQDLERKLELE-NKSFRRQLAAEKKKHKE----AQEEVKILQEEIERLQQKLKEKEREL 193
SH3_p40phox cd11869
Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil ...
917-969 3.34e-03

Src Homology 3 domain of the p40phox subunit of NADPH oxidase; p40phox, also called Neutrophil cytosol factor 4 (NCF-4), is a cytosolic subunit of the phagocytic NADPH oxidase complex (also called Nox2 or gp91phox) which plays a crucial role in the cellular response to bacterial infection. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p40phox positively regulates NADPH oxidase in both phosphatidylinositol-3-phosphate (PI3P)-dependent and PI3P-independent manner. It contains an N-terminal PX domain, a central SH3 domain, and a C-terminal PB1 domain that interacts with p67phox. The SH3 domain of p40phox binds to canonical polyproline and noncanonical motifs at the C-terminus of p47phox. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212802  Cd Length: 54  Bit Score: 37.47  E-value: 3.34e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSYVKLI 969
Cdd:cd11869      1 RAEALFDFTGNSKLELNFKAGDVIFLLSRVNKDWLeGTVRGATGIFPLSFVKII 54
SH3_SPIN90 cd11849
Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also ...
1009-1056 3.44e-03

Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also called NCK interacting protein with SH3 domain (NCKIPSD), Dia-interacting protein (DIP), 54 kDa vimentin-interacting protein (VIP54), or WASP-interacting SH3-domain protein (WISH). It is an F-actin binding protein that regulates actin polymerization and endocytosis. It associates with the Arp2/3 complex near actin filaments and determines filament localization at the leading edge of lamellipodia. SPIN90 is expressed in the early stages of neuronal differentiation and plays a role in regulating growth cone dynamics and neurite outgrowth. It also interacts with IRSp53 and regulates cell motility by playing a role in the formation of membrane protrusions. SPIN90 contains an N-terminal SH3 domain, a proline-rich domain, and a C-terminal VCA (verprolin-homology and cofilin-like acidic) domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212783 [Multi-domain]  Cd Length: 53  Bit Score: 37.29  E-value: 3.44e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDV-ILVTKKDGDWW-----TGTVgdkaGVFPSNYVR 1056
Cdd:cd11849      4 ALYDFKSAEPNTLSFSEGETfLLLERSNAHWWlvtnhSGET----GYVPANYVK 53
HMMR_N pfam15905
Hyaluronan mediated motility receptor N-terminal; HMMR_N is the N-terminal region of ...
344-675 3.46e-03

Hyaluronan mediated motility receptor N-terminal; HMMR_N is the N-terminal region of eukaryotic hyaluronan-mediated motility receptor proteins. The protein is functionally associated with BRCA1 and thus predicted to be a common, low-penetrance breast cancer candidate.


Pssm-ID: 464932 [Multi-domain]  Cd Length: 329  Bit Score: 41.72  E-value: 3.46e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  344 KKLPVTFED-----KKRENFERGNLELEK--------RRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELE 410
Cdd:pfam15905   17 LKGPVSFEKsqrfrKQKAAESQPNLNNSKdastpataRKVKSLELKKKSQKNLKESKDQKELEKEIRALVQERGEQDKRL 96
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  411 KQLEKQRELERQREEERRKEIERREAAKRELERQRQlewERNRRQELL--------NQRNKEQEDIVVLKAKKKtLEFEL 482
Cdd:pfam15905   97 QALEEELEKVEAKLNAAVREKTSLSASVASLEKQLL---ELTRVNELLkakfsedgTQKKMSSLSMELMKLRNK-LEAKM 172
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  483 EALNDKKHQLEGKLQDIRCRLTTQRQEI---ESTNKSRELRIAEithlqqqlqesqqmlgrlipEKQILNDQLKQVQQNS 559
Cdd:pfam15905  173 KEVMAKQEGMEGKLQVTQKNLEHSKGKVaqlEEKLVSTEKEKIE--------------------EKSETEKLLEYITELS 232
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  560 LHRDSLVTLKRALeakelarqhlrDQLDEVEKEtrsKLQEIDIFNNQLKElreihNKQQLQKQksmeaerlkQKEQERKI 639
Cdd:pfam15905  233 CVSEQVEKYKLDI-----------AQLEELLKE---KNDEIESLKQSLEE-----KEQELSKQ---------IKDLNEKC 284
                          330       340       350       360
                   ....*....|....*....|....*....|....*....|....
gi 1034627469  640 IELEKQKEEAQRRAQERDK------QWLEH--VQQEDEHQRPRK 675
Cdd:pfam15905  285 KLLESEKEELLREYEEKEQtlnaelEELKEklTLEEQEHQKLQQ 328
SH3_SPIN90 cd11849
Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also ...
919-967 3.47e-03

Src homology 3 domain of SH3 protein interacting with Nck, 90 kDa (SPIN90); SPIN90 is also called NCK interacting protein with SH3 domain (NCKIPSD), Dia-interacting protein (DIP), 54 kDa vimentin-interacting protein (VIP54), or WASP-interacting SH3-domain protein (WISH). It is an F-actin binding protein that regulates actin polymerization and endocytosis. It associates with the Arp2/3 complex near actin filaments and determines filament localization at the leading edge of lamellipodia. SPIN90 is expressed in the early stages of neuronal differentiation and plays a role in regulating growth cone dynamics and neurite outgrowth. It also interacts with IRSp53 and regulates cell motility by playing a role in the formation of membrane protrusions. SPIN90 contains an N-terminal SH3 domain, a proline-rich domain, and a C-terminal VCA (verprolin-homology and cofilin-like acidic) domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212783 [Multi-domain]  Cd Length: 53  Bit Score: 37.29  E-value: 3.47e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQDM-WWF-GEVQGQKGWFPKSYVK 967
Cdd:cd11849      3 RALYDFKSAEPNTLSFSEGETFLLLERSNAhWWLvTNHSGETGYVPANYVK 53
ClassIIa_HDAC5_Gln-rich-N cd10164
Glutamine-rich N-terminal helical domain of HDAC5, a Class IIa histone deacetylase; This ...
326-413 3.49e-03

Glutamine-rich N-terminal helical domain of HDAC5, a Class IIa histone deacetylase; This family consists of the glutamine-rich domain of histone deacetylase 5 (HDAC5). It belongs to a superfamily that consists of the glutamine-rich N-terminal helical extension to certain Class IIa histone deacetylases (HDACs), including HDAC4, HDAC5 and HDCA9; it is missing from HDAC7. This domain confers responsiveness to calcium signals and mediates interactions with transcription factors and cofactors, and it is able to repress transcription independently of the HDAC C-terminal, zinc-dependent catalytic domain. It has many intra- and inter-helical interactions which are possibly involved in reversible assembly and disassembly of proteins. HDACs regulate diverse cellular processes through enzymatic deacetylation of histone as well as non-histone proteins, in particular deacetylating N(6)-acetyl-lysine residues.


Pssm-ID: 197400 [Multi-domain]  Cd Length: 97  Bit Score: 38.65  E-value: 3.49e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  326 DQRLPEEPVLEDEQQQLEKKLPVTFEDKKRENFERGN-----LELEKRRQALLEQQRKEQERLAQLERAEQERKeRERQE 400
Cdd:cd10164      6 EQQLQQELLLLKQQQQLQKQLLFAEFQKQHEHLTRQHevqlqKHLKVRAELFSEQQQQEILAAKRQQELEQQRK-REQQR 84
                           90
                   ....*....|...
gi 1034627469  401 QERKRQLELEKQL 413
Cdd:cd10164     85 QEELEKQRLEQQL 97
PRK12585 PRK12585
putative monovalent cation/H+ antiporter subunit G; Reviewed
582-671 3.53e-03

putative monovalent cation/H+ antiporter subunit G; Reviewed


Pssm-ID: 183610  Cd Length: 197  Bit Score: 40.44  E-value: 3.53e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  582 LRDQLDEVEKETRSKLQEIDIFNNQLKELReihnkqqlQKQKSMEaERLKQKEQERKIIELEKQKEEAQrraqERDKQWL 661
Cdd:PRK12585   103 IRDQLRSVKKDDIKKKKSLIIRQEQIEKAR--------QEREELE-ERMEWERREEKIDEREDQEEQER----EREEQTI 169
                           90
                   ....*....|
gi 1034627469  662 EHVQQEDEHQ 671
Cdd:PRK12585   170 EEQSDDSEHE 179
SH3_Src_like cd11845
Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members ...
1080-1132 3.53e-03

Src homology 3 domain of Src kinase-like Protein Tyrosine Kinases; Src subfamily members include Src, Lck, Hck, Blk, Lyn, Fgr, Fyn, Yrk, Yes, and Brk. Src (or c-Src) proteins are cytoplasmic (or non-receptor) PTKs which are anchored to the plasma membrane. They contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation sites. Src proteins are involved in signaling pathways that regulate cytokine and growth factor responses, cytoskeleton dynamics, cell proliferation, survival, and differentiation. They were identified as the first proto-oncogene products, and they regulate cell adhesion, invasion, and motility in cancer cells, and tumor vasculature, contributing to cancer progression and metastasis. Src kinases are overexpressed in a variety of human cancers, making them attractive targets for therapy. They are also implicated in acute inflammatory responses and osteoclast function. Src, Fyn, Yes, and Yrk are widely expressed, while Blk, Lck, Hck, Fgr, Lyn, and Brk show a limited expression pattern. This subfamily also includes Drosophila Src42A, Src oncogene at 42A (also known as Dsrc41) which accumulates at sites of cell-cell or cell-matrix adhesion, and participates in Drosphila development and wound healing. It has been shown to promote tube elongation in the tracheal system, is essential for proper cell-cell matching during dorsal closure, and regulates cell-cell contacts in developing Drosophila eyes. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212779 [Multi-domain]  Cd Length: 52  Bit Score: 37.18  E-value: 3.53e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469 1080 QVIA--SYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGKKrqiGWFPANY 1132
Cdd:cd11845      1 IYVAlyDYEARTDDDLSFKKGDRLQILDDSDGDWWLARHLSTGKE---GYIPSNY 52
Cast pfam10174
RIM-binding protein of the cytomatrix active zone; This is a family of proteins that form part ...
371-635 3.56e-03

RIM-binding protein of the cytomatrix active zone; This is a family of proteins that form part of the CAZ (cytomatrix at the active zone) complex which is involved in determining the site of synaptic vesicle fusion. The C-terminus is a PDZ-binding motif that binds directly to RIM (a small G protein Rab-3A effector). The family also contains four coiled-coil domains.


Pssm-ID: 431111 [Multi-domain]  Cd Length: 766  Bit Score: 42.12  E-value: 3.56e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  371 ALLEQQRKEQERLAQLERAEQERKERERQE---QERKRQLELEKQL-----EKQRELERQREEERRKEIERREAAKRElE 442
Cdd:pfam10174  439 TTLEEALSEKERIIERLKEQREREDRERLEeleSLKKENKDLKEKVsalqpELTEKESSLIDLKEHASSLASSGLKKD-S 517
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  443 RQRQLEWERNRRQE----LLNQRNKEQEDIVVLKAKK------KTLEFELEALNDKKHQLEGKLQdircRLTTQRQEIES 512
Cdd:pfam10174  518 KLKSLEIAVEQKKEecskLENQLKKAHNAEEAVRTNPeindriRLLEQEVARYKEESGKAQAEVE----RLLGILREVEN 593
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  513 TNKSRELRIAEIthlqqqlqesQQMLGRLIPEKQILNDQLKQVQQnSLHRDSLVTLKRALEAKE-LARQHLRDQLDEVEK 591
Cdd:pfam10174  594 EKNDKDKKIAEL----------ESLTLRQMKEQNKKVANIKHGQQ-EMKKKGAQLLEEARRREDnLADNSQQLQLEELMG 662
                          250       260       270       280       290
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  592 ETRSKLQEIDIFNNQLKEL------REIH-NKQQLQKQKSMEaERLKQKEQ 635
Cdd:pfam10174  663 ALEKTRQELDATKARLSSTqqslaeKDGHlTNLRAERRKQLE-EILEMKQE 712
SH3_SNX9 cd11898
Src Homology 3 domain of Sorting nexin 9; Sorting nexin 9 (SNX9), also known as SH3PX1, is a ...
1079-1136 3.57e-03

Src Homology 3 domain of Sorting nexin 9; Sorting nexin 9 (SNX9), also known as SH3PX1, is a cytosolic protein that interacts with proteins associated with clathrin-coated pits such as Cdc-42-associated tyrosine kinase 2 (ACK2). It binds class I polyproline sequences found in dynamin 1/2 and the WASP/N-WASP actin regulators. SNX9 is localized to plasma membrane endocytic sites and acts primarily in clathrin-mediated endocytosis. Its array of interacting partners suggests that SNX9 functions at the interface between endocytosis and actin cytoskeletal organization. SNXs are Phox homology (PX) domain containing proteins that are involved in regulating membrane traffic and protein sorting in the endosomal system. SNX9 also contains BAR and SH3 domains. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212831  Cd Length: 57  Bit Score: 37.15  E-value: 3.57e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469 1079 AQVIASYTA-TGPEQLTLAPGQLILIRKKNPGGWWegeLQARGKKRQIGWFPANYVKLL 1136
Cdd:cd11898      2 ARVLYDFAAePGNNELTVKEGEIITVTNPNVGGGW---IEAKNSQGERGLVPTDYVEIV 57
SH3_Sorbs2_1 cd11920
First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called ...
1079-1136 3.58e-03

First Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212853 [Multi-domain]  Cd Length: 55  Bit Score: 37.30  E-value: 3.58e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARgkkrqIGWFPANYVKLL 1136
Cdd:cd11920      3 ARAVYDFKAQTSKELSFKKGDTVYILRKIDQNWYEGEHHGR-----VGIFPISYVEKL 55
Smc COG1196
Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning]; ...
355-599 3.65e-03

Chromosome segregation ATPase Smc [Cell cycle control, cell division, chromosome partitioning];


Pssm-ID: 440809 [Multi-domain]  Cd Length: 983  Bit Score: 42.23  E-value: 3.65e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  355 RENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLEKQRELERQREEERRKEIERR 434
Cdd:COG1196    629 AARLEAALRRAVTLAGRLREVTLEGEGGSAGGSLTGGSRRELLAALLEAEAELEELAERLAEEELELEEALLAEEEEERE 708
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  435 EAAKRELERQRQLEWERNRRQELLNQRNKEQEDIVVLKAKKKTLEFELEALNDKKhQLEGKLQdircRLTTQRQEIESTN 514
Cdd:COG1196    709 LAEAEEERLEEELEEEALEEQLEAEREELLEELLEEEELLEEEALEELPEPPDLE-ELERELE----RLEREIEALGPVN 783
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  515 ksreLRiAEithlqqqlqesqqmlgrlipekqilnDQLKQVQQnslhR-DSLVTlKRA-LEAkelARQHLRDQLDEVEKE 592
Cdd:COG1196    784 ----LL-AI--------------------------EEYEELEE----RyDFLSE-QREdLEE---ARETLEEAIEEIDRE 824

                   ....*..
gi 1034627469  593 TRSKLQE 599
Cdd:COG1196    825 TRERFLE 831
GumC COG3206
Exopolysaccharide export protein/domain GumC/Wzc1 [Cell wall/membrane/envelope biogenesis];
391-651 3.73e-03

Exopolysaccharide export protein/domain GumC/Wzc1 [Cell wall/membrane/envelope biogenesis];


Pssm-ID: 442439 [Multi-domain]  Cd Length: 687  Bit Score: 41.93  E-value: 3.73e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  391 QERKERERQEQERKRQLELEKQLEKqrelerqreeerrkeierreaAKRELERQRQlewernRRQELlnqrnKEQEDIVV 470
Cdd:COG3206    162 LEQNLELRREEARKALEFLEEQLPE---------------------LRKELEEAEA------ALEEF-----RQKNGLVD 209
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  471 LKAKKKTLEFELEALNDKKHQLEGKLQDIRcrltTQRQEIESTNKSRELRIAEITHLqqqlqesqqmlgrliPEKQILND 550
Cdd:COG3206    210 LSEEAKLLLQQLSELESQLAEARAELAEAE----ARLAALRAQLGSGPDALPELLQS---------------PVIQQLRA 270
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  551 QLKQVQQnslhrdslvtlKRALEAKELARQH-----LRDQLDEVEKETRSKLQEIDI-FNNQLKELREihNKQQLQKQKS 624
Cdd:COG3206    271 QLAELEA-----------ELAELSARYTPNHpdviaLRAQIAALRAQLQQEAQRILAsLEAELEALQA--REASLQAQLA 337
                          250       260
                   ....*....|....*....|....*...
gi 1034627469  625 -MEAERLKQKEQERKIIELEKQKEEAQR 651
Cdd:COG3206    338 qLEARLAELPELEAELRRLEREVEVARE 365
C2B_Synaptotagmin-7 cd08405
C2 domain second repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking ...
1596-1677 3.73e-03

C2 domain second repeat present in Synaptotagmin 7; Synaptotagmin is a membrane-trafficking protein characterized by a N-terminal transmembrane region, a linker, and 2 C-terminal C2 domains. Synaptotagmin 7, a member of class 2 synaptotagmins, is located in presynaptic plasma membranes in neurons, dense-core vesicles in endocrine cells, and lysosomes in fibroblasts. It has been shown to play a role in regulation of Ca2+-dependent lysosomal exocytosis in fibroblasts and may also function as a vesicular Ca2+-sensor. It is distinguished from the other synaptotagmins by having over 12 splice forms. Previously all synaptotagmins were thought to be calcium sensors in the regulation of neurotransmitter release and hormone secretion, but it has been shown that not all of them bind calcium. Of the 17 identified synaptotagmins only 8 bind calcium (1-3, 5-7, 9, 10). The function of the two C2 domains that bind calcium are: regulating the fusion step of synaptic vesicle exocytosis (C2A) and binding to phosphatidyl-inositol-3,4,5-triphosphate (PIP3) in the absence of calcium ions and to phosphatidylinositol bisphosphate (PIP2) in their presence (C2B). C2B also regulates also the recycling step of synaptic vesicles. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the second C2 repeat, C2B, and has a type-I topology.


Pssm-ID: 176050 [Multi-domain]  Cd Length: 136  Bit Score: 39.32  E-value: 3.73e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTM---GSQCHITKTI--QDTLNPKWNSNCQF-----FIRDLEqevLCITVFE 1665
Cdd:cd08405     15 NRITVNIIKARNLKAMDINGTSDPYVKVWLmykDKRVEKKKTVikKRTLNPVFNESFIFnipleRLRETT---LIITVMD 91
                           90
                   ....*....|..
gi 1034627469 1666 RDQFSPDDFLGR 1677
Cdd:cd08405     92 KDRLSRNDLIGK 103
Cast pfam10174
RIM-binding protein of the cytomatrix active zone; This is a family of proteins that form part ...
364-659 3.81e-03

RIM-binding protein of the cytomatrix active zone; This is a family of proteins that form part of the CAZ (cytomatrix at the active zone) complex which is involved in determining the site of synaptic vesicle fusion. The C-terminus is a PDZ-binding motif that binds directly to RIM (a small G protein Rab-3A effector). The family also contains four coiled-coil domains.


Pssm-ID: 431111 [Multi-domain]  Cd Length: 766  Bit Score: 42.12  E-value: 3.81e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  364 ELEKRRQALLEQQRKE----QERLAQLE-RAEQERKERERQEQERKRQLELeKQLEKQRELERQREEERRKEIERREAAK 438
Cdd:pfam10174  116 ENFRRLQSEHERQAKElfllRKTLEEMElRIETQKQTLGARDESIKKLLEM-LQSKGLPKKSGEEDWERTRRIAEAEMQL 194
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  439 RELERQ-RQLEWERNRRQELLNQRNKEQEDivvlKAKKKTLEFELEALNDKKHQLEGKLQDIRcrlttqrQEIESTNKSr 517
Cdd:pfam10174  195 GHLEVLlDQKEKENIHLREELHRRNQLQPD----PAKTKALQTVIEMKDTKISSLERNIRDLE-------DEVQMLKTN- 262
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  518 elriaeithlqqqlqesqqmlGRLIPEKQilNDQLKQVQQNSLHRDSLVT----LKRALEAKELARQHLRDQLD------ 587
Cdd:pfam10174  263 ---------------------GLLHTEDR--EEEIKQMEVYKSHSKFMKNkidqLKQELSKKESELLALQTKLEtltnqn 319
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  588 -------EVEKET-------RSKLQ-EIDIFNNQLKELREIHNK-----QQLQKQKSMEAERLKQKEQ-----ERKIIEL 642
Cdd:pfam10174  320 sdckqhiEVLKESltakeqrAAILQtEVDALRLRLEEKESFLNKktkqlQDLTEEKSTLAGEIRDLKDmldvkERKINVL 399
                          330
                   ....*....|....*..
gi 1034627469  643 EKQKEEAQRRAQERDKQ 659
Cdd:pfam10174  400 QKKIENLQEQLRDKDKQ 416
COG5038 COG5038
Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];
1593-1718 4.09e-03

Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];


Pssm-ID: 227371 [Multi-domain]  Cd Length: 1227  Bit Score: 42.05  E-value: 4.09e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1593 TGIGRLMVNVVEGIELKPCRSH--GKSNPYCEVTMGSQCH-ITKTIQDTLNPKWNSNCQFFIRDLEQEvLCITVFERDQF 1669
Cdd:COG5038    433 TAIGVVEVKIKSAEGLKKSDSTinGTVDPYITVTFSDRVIgKTRVKKNTLNPVWNETFYILLNSFTDP-LNLSLYDFNSF 511
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469 1670 SPDDFLGRTEIRVADIKKDQGSKGPVTKcLLLHEVPTGEIVvrLDLQLF 1718
Cdd:COG5038    512 KSDKVVGSTQLDLALLHQNPVKKNELYE-FLRNTKNVGRLT--YDLRFF 557
SH3_CASK cd12081
Src Homology 3 domain of Calcium/calmodulin-dependent Serine protein Kinase; CASK is a ...
1160-1206 4.18e-03

Src Homology 3 domain of Calcium/calmodulin-dependent Serine protein Kinase; CASK is a scaffolding protein that is highly expressed in the mammalian nervous system and plays roles in synaptic protein targeting, neural development, and gene expression regulation. CASK interacts with many different binding partners including parkin, neurexin, syndecans, calcium channel proteins, caskin, among others, to perform specific functions in different subcellular locations. Disruption of the CASK gene in mice results in neonatal lethality while mutations in the human gene have been associated with X-linked mental retardation. Drosophila CASK is associated with both pre- and postsynaptic membranes and is crucial in synaptic transmission and vesicle cycling. CASK contains an N-terminal calmodulin-dependent kinase (CaMK)-like domain, two L27 domains, followed by the core of three domains characteristic of MAGUK (membrane-associated guanylate kinase) proteins: PDZ, SH3, and guanylate kinase (GuK). In addition, it also contains the Hook (Protein 4.1 Binding) motif in between the SH3 and GuK domains. The GuK domain in MAGUK proteins is enzymatically inactive; instead, the domain mediates protein-protein interactions and associates intramolecularly with the SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213014  Cd Length: 62  Bit Score: 37.19  E-value: 4.18e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1160 VIGMYDYTAQNDD-------ELAFNKGQIINVLNKEDPDWWKGE----VNGQVGLFPS 1206
Cdd:cd12081      2 VRAQFEYDPLKDDlipckqaGIRFRVGDILQIISKDDHNWWQAKlensKNGTAGLIPS 59
GBP_C cd16269
Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal ...
370-500 4.21e-03

Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal domain. Guanylate-binding proteins (GBPs) are synthesized after activation of the cell by interferons. The biochemical properties of GBPs are clearly different from those of Ras-like and heterotrimeric GTP-binding proteins. They bind guanine nucleotides with low affinity (micromolar range), are stable in their absence, and have a high turnover GTPase. In addition to binding GDP/GTP, they have the unique ability to bind GMP with equal affinity and hydrolyze GTP not only to GDP, but also to GMP. This C-terminal domain has been shown to mediate inhibition of endothelial cell proliferation by inflammatory cytokines.


Pssm-ID: 293879 [Multi-domain]  Cd Length: 291  Bit Score: 41.02  E-value: 4.21e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  370 QALLEQQRKEQErlaqlERAEQERKERERQEQERKRQlELEKQLEKQRelerqreeerrkeierreaaKRELERQRQLE- 448
Cdd:cd16269    191 QALTEKEKEIEA-----ERAKAEAAEQERKLLEEQQR-ELEQKLEDQE--------------------RSYEEHLRQLKe 244
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  449 -WERNRRQELlnqrnKEQEDIVVLKAKKKTLEFElEALNDKKHQLEGKLQDIR 500
Cdd:cd16269    245 kMEEERENLL-----KEQERALESKLKEQEALLE-EGFKEQAELLQEEIRSLK 291
SH3_EFS cd12003
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, ...
1009-1057 4.39e-03

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, Embryonal Fyn-associated Substrate; EFS is also called HEFS, CASS3 (Cas scaffolding protein family member 3) or SIN (Src-interacting protein). It was identified based on interactions with the Src kinases, Fyn and Yes. It plays a role in thymocyte development and acts as a negative regulator of T cell proliferation. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212936  Cd Length: 62  Bit Score: 37.18  E-value: 4.39e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKKDGD----WWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd12003      5 ALYDNAAESPEELSFRRGDVLMVLKREHGslpgWWLCSLHGQQGIAPANRLRL 57
SH3_Intersectin1_4 cd11993
Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
918-970 4.42e-03

Fourth Src homology 3 domain (or SH3D) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fourth SH3 domain (or SH3D) of ITSN1 has been shown to bind SHIP2, Numb, CdGAP, and N-WASP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212926  Cd Length: 65  Bit Score: 37.40  E-value: 4.42e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  918 AQALYPWRAKKDNHLNFNKNDVITVLEQQ-DMWWFGEVQG-----QKGWFPKSYVKLIS 970
Cdd:cd11993      6 AQVIASYTATGPEQLTLAPGQLILIRKKNpGGWWEGELQArgkkrQIGWFPANYVKLLS 64
SH3_CIN85_2 cd12055
Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called ...
917-967 4.43e-03

Second Src Homology 3 domain (SH3B) of Cbl-interacting protein of 85 kDa; CIN85, also called SH3 domain-containing kinase-binding protein 1 (SH3KBP1) or CD2-binding protein 3 (CD2BP3) or Ruk, is an adaptor protein that is involved in the downregulation of receptor tyrosine kinases by facilitating endocytosis through interaction with endophilin-associated ubiquitin ligase Cbl proteins. It is also important in many other cellular processes including vesicle-mediated transport, cytoskeletal remodelling, apoptosis, cell adhesion and migration, and viral infection, among others. CIN85 exists as multiple variants from alternative splicing; the main variant contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CIN85 to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CIN85. SH3B has been shown to bind Cbl proline-rich peptides and ubiquitin. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212988 [Multi-domain]  Cd Length: 53  Bit Score: 36.90  E-value: 4.43e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVL-EQQDMWWFGEVQGQKGWFPKSYVK 967
Cdd:cd12055      1 RCQVAFSYLPQNEDELELKVGDIIEVVgEVEEGWWEGVLNGKTGMFPSNFIK 52
SH3_Sla1p_1 cd11773
First Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates ...
745-800 4.61e-03

First Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates endocytosis by playing a role as an adaptor protein in coupling components of the actin cytoskeleton to the endocytic machinery. It interacts with Abp1p, Las17p and Pan1p, which are activator proteins of actin-related protein 2/3 (Arp2/3). Sla1p contains multiple domains including three SH3 domains, a SAM (sterile alpha motif) domain, and a Sla1 homology domain 1 (SHD1), which binds to the NPFXD motif that is found in many integral membrane proteins such as the Golgi-localized Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and Dnf1p. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212707 [Multi-domain]  Cd Length: 57  Bit Score: 37.02  E-value: 4.61e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGELK-------GKTGWFPANY 800
Cdd:cd11773      2 YKALYDYEPQTEDELTIQEDDILYL-------LEKSDDDWWKVKLKvnssdddEPVGLVPATY 57
SH3_p67phox-like_C cd11870
C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; ...
1080-1134 4.62e-03

C-terminal Src Homology 3 domain of the p67phox subunit of NADPH oxidase and similar proteins; This subfamily is composed of p67phox, NADPH oxidase activator 1 (Noxa1), and similar proteins. p67phox, also called Neutrophil cytosol factor 2 (NCF-2), and Noxa1 are homologs and are the cytosolic subunits of the phagocytic (Nox2) and nonphagocytic (Nox1) NADPH oxidase complexes, respectively. NADPH oxidase catalyzes the transfer of electrons from NADPH to oxygen during phagocytosis forming superoxide and reactive oxygen species. p67phox and Noxa1 play regulatory roles. p67phox contains N-terminal TPR, first SH3 (or N-terminal or central SH3), PB1, and C-terminal SH3 domains. Noxa1 has a similar domain architecture except it is lacking the N-terminal SH3 domain. The TPR domain of both binds activated GTP-bound Rac, while the C-terminal SH3 domain of p67phox and Noxa1 binds the polyproline motif found at the C-terminus of p47phox and Noxo1, respectively. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212803 [Multi-domain]  Cd Length: 53  Bit Score: 36.74  E-value: 4.62e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1080 QVIA--SYTATGPEQLTLAPGQLILIRKKNPGGWWEGElqARGKkrqIGWFPANYVK 1134
Cdd:cd11870      1 QVVAlhRYEAQGPEDLGFREGDTIDVLSEVNEAWLEGH--SDGR---VGIFPKCFVV 52
SH3_Sorbs2_3 cd11917
Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), ...
919-967 4.70e-03

Third (or C-terminal) Src Homology 3 domain of Sorbin and SH3 domain containing 2 (Sorbs2), also called Arg-binding protein 2 (ArgBP2); Sorbs2 or ArgBP2 is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It regulates actin-dependent processes including cell adhesion, morphology, and migration. It is expressed in many tissues and is abundant in the heart. Like vinexin, it is found in focal adhesion where it interacts with vinculin and afadin. It also localizes in epithelial cell stress fibers and in cardiac muscle cell Z-discs. Sorbs2 has been implicated to play roles in the signaling of c-Arg, Akt, and Pyk2. Other interaction partners of Sorbs2 include c-Abl, flotillin, spectrin, dynamin 1/2, synaptojanin, PTP-PEST, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212850 [Multi-domain]  Cd Length: 61  Bit Score: 37.28  E-value: 4.70e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQK--GWFPKSYVK 967
Cdd:cd11917      8 QALYNYMPRNEDELELREGDVIDVMEKCDDGWFvGTSRRTKffGTFPGNYVK 59
SH3_ASAP cd11821
Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing ...
1087-1132 4.76e-03

Src homology 3 domain of ArfGAP with SH3 domain, ankyrin repeat and PH domain containing proteins; ASAPs are Arf GTPase activating proteins (GAPs) and they function in regulating cell growth, migration, and invasion. They contain an N-terminal BAR domain, followed by a Pleckstrin homology (PH) domain, an Arf GAP domain, ankyrin (ANK) repeats, and a C-terminal SH3 domain. Vertebrates contain at least three members, ASAP1, ASAP2, and ASAP3, but some ASAP3 proteins do not seem to harbor a C-terminal SH3 domain. ASAP1 and ASAP2 show GTPase activating protein (GAP) activity towards Arf1 and Arf5. They do not show GAP activity towards Arf6, but are able to mediate Arf6 signaling by binding stably to GTP-Arf6. ASAP3 is an Arf6-specific GAP. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212755 [Multi-domain]  Cd Length: 53  Bit Score: 36.91  E-value: 4.76e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*.
gi 1034627469 1087 ATGPEQLTLAPGQLILIRKKNPGGWWEGELQarGKKRQIGWFPANY 1132
Cdd:cd11821     10 ADNDDELTFSEGEIIVVTGEEDDEWWEGHIE--GDPSRRGVFPVSF 53
SH3_Brk cd11847
Src homology 3 domain of Brk (Breast tumor kinase) Protein Tyrosine Kinase (PTK), also called ...
745-800 4.80e-03

Src homology 3 domain of Brk (Breast tumor kinase) Protein Tyrosine Kinase (PTK), also called PTK6; Brk is a cytoplasmic (or non-receptor) PTK with limited homology to Src kinases. It has been found to be overexpressed in a majority of breast tumors. It plays roles in normal cell differentiation, proliferation, survival, migration, and cell cycle progression. Brk substrates include RNA-binding proteins (SLM-1/2, Sam68), transcription factors (STAT3/5), and signaling molecules (Akt, paxillin, IRS-4). Src kinases in general contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr; they are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). However, Brk lacks the N-terminal myristoylation site. The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212781 [Multi-domain]  Cd Length: 58  Bit Score: 37.15  E-value: 4.80e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  745 YRALYPFESRSHDEITIQPGD---IVMVKGEWVDESQTGEPGWLGGelkgkTGWFPANY 800
Cdd:cd11847      2 YKALWDFKARGDEELSFQAGDqfrIAERSGDWWTALKLDRAGGVVA-----QGFVPNNY 55
LCD1 pfam09798
DNA damage checkpoint protein; This is a family of proteins which regulate checkpoint kinases. ...
582-646 4.80e-03

DNA damage checkpoint protein; This is a family of proteins which regulate checkpoint kinases. In Schizosaccharomyces pombe this protein is called Rad26 and in Saccharomyces cerevisiae it is called LCD1.


Pssm-ID: 462906  Cd Length: 615  Bit Score: 41.53  E-value: 4.80e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  582 LRDQLDEVEKEtrsKLQEIDIFNNQLKELREIHnKQQLQKQKSmEAERLkqkEQERKIIELEKQK 646
Cdd:pfam09798    2 LRDKLELLQQE---KEKELEKLKNSYEELKSSH-EEELEKLKQ-EVQKL---EDEKKFLLNELRS 58
SH3_ARHGEF5_19 cd11940
Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ...
917-968 4.82e-03

Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ARHGEF5, also called ephexin-3 or TIM (Transforming immortalized mammary oncogene), is a potent activator of RhoA and it plays roles in regulating cell shape, adhesion, and migration. It binds to the SH3 domain of Src and is involved in regulating Src-induced podosome formation. ARHGEF19, also called ephexin-2 or WGEF (weak-similarity GEF), is highly expressed in the intestine, liver, heart and kidney. It activates RhoA, Cdc42, and Rac 1, and has been shown to activate RhoA in the Wnt-PCP (planar cell polarity) pathway. It is involved in the regulation of cell polarity and cytoskeletal reorganization. ARHGEF5 and ARHGEF19 contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212873  Cd Length: 55  Bit Score: 36.69  E-value: 4.82e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  917 QAQALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGEVQ---GQKGWFPKSYVKL 968
Cdd:cd11940      1 QVQCIRSYKAQENDELTLEKADIIMVRQQSSDGWLEGVRlsdGERGWFPQSHVEE 55
GBP_C cd16269
Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal ...
616-686 5.02e-03

Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal domain. Guanylate-binding proteins (GBPs) are synthesized after activation of the cell by interferons. The biochemical properties of GBPs are clearly different from those of Ras-like and heterotrimeric GTP-binding proteins. They bind guanine nucleotides with low affinity (micromolar range), are stable in their absence, and have a high turnover GTPase. In addition to binding GDP/GTP, they have the unique ability to bind GMP with equal affinity and hydrolyze GTP not only to GDP, but also to GMP. This C-terminal domain has been shown to mediate inhibition of endothelial cell proliferation by inflammatory cytokines.


Pssm-ID: 293879 [Multi-domain]  Cd Length: 291  Bit Score: 41.02  E-value: 5.02e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  616 KQQLQKQKSMEAERLK--QKEQERKI-----IELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPR-------KLHEEEK 681
Cdd:cd16269    191 QALTEKEKEIEAERAKaeAAEQERKLleeqqRELEQKLEDQERSYEEHLRQLKEKMEEERENLLKEqeralesKLKEQEA 270

                   ....*
gi 1034627469  682 LKREE 686
Cdd:cd16269    271 LLEEG 275
SH3_SKAP1-like cd11866
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1 and similar proteins; This ...
919-966 5.09e-03

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1 and similar proteins; This subfamily is composed of SKAP1, SKAP2, and similar proteins. SKAP1 and SKAP2 are immune cell-specific adaptor proteins that play roles in T- and B-cell adhesion, respectively, and are thus important in the migration of T- and B-cells to sites of inflammation and for movement during T-cell conjugation with antigen-presenting cells. Both SKAP1 and SKAP2 bind to ADAP (adhesion and degranulation-promoting adaptor protein), among many other binding partners. They contain a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. The SH3 domain of SKAP1 is necessary for its ability to regulate T-cell conjugation with antigen-presenting cells and the formation of LFA-1 clusters. SKAP1 binds primarily to a proline-rich region of ADAP through its SH3 domain; its degradation is regulated by ADAP. A secondary interaction occurs via the ADAP SH3 domain and the RKxxYxxY motif in SKAP1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212800  Cd Length: 53  Bit Score: 36.64  E-value: 5.09e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  919 QALYPWRAKKDNHLNFNKNDVITVLEQQ---DMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11866      3 MGLWDCSGNEPDELSFKRGDLIYIISKEydsFGWWVGELNGKVGLVPKDYL 53
DUF3584 pfam12128
Protein of unknown function (DUF3584); This protein is found in bacteria and eukaryotes. ...
490-682 5.40e-03

Protein of unknown function (DUF3584); This protein is found in bacteria and eukaryotes. Proteins in this family are typically between 943 to 1234 amino acids in length. This family contains a P-loop motif suggesting it is a nucleotide binding protein. It may be involved in replication.


Pssm-ID: 432349 [Multi-domain]  Cd Length: 1191  Bit Score: 41.75  E-value: 5.40e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  490 HQLEGKLQDIRCRLTTQRQEIEsTNKSRELRI--------AEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQNSlh 561
Cdd:pfam12128  230 IQAIAGIMKIRPEFTKLQQEFN-TLESAELRLshlhfgykSDETLIASRQEERQETSAELNQLLRTLDDQWKEKRDEL-- 306
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  562 RDSLVTLKRALEAKE-----LARQHLRDQLDEVEKeTRSKLQEIDIFNNQLKELREIHnKQQLQKQKSMEAE----RLKQ 632
Cdd:pfam12128  307 NGELSAADAAVAKDRseleaLEDQHGAFLDADIET-AAADQEQLPSWQSELENLEERL-KALTGKHQDVTAKynrrRSKI 384
                          170       180       190       200       210
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  633 KEQERKIIELEKQKEEAQRRAQER-------DKQWLEHVQQEDEHQRPRKLHEEEKL 682
Cdd:pfam12128  385 KEQNNRDIAGIKDKLAKIREARDRqlavaedDLQALESELREQLEAGKLEFNEEEYR 441
COG5038 COG5038
Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];
1596-1696 5.45e-03

Ca2+-dependent lipid-binding protein, contains C2 domain [General function prediction only];


Pssm-ID: 227371 [Multi-domain]  Cd Length: 1227  Bit Score: 41.67  E-value: 5.45e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1596 GRLMVNVVEGIELKPCRSHGKSNPYCEVTM-GSQCHITKTIQDTLNPKWNSNCQFFIRDLEQEVLCITVFERDQFSPDDF 1674
Cdd:COG5038   1040 GYLTIMLRSGENLPSSDENGYSDPFVKLFLnEKSVYKTKVVKKTLNPVWNEEFTIEVLNRVKDVLTINVNDWDSGEKNDL 1119
                           90       100
                   ....*....|....*....|....
gi 1034627469 1675 LGRTEIRVADIK--KDQGSKGPVT 1696
Cdd:COG5038   1120 LGTAEIDLSKLEpgGTTNSNIPLD 1143
COG4372 COG4372
Uncharacterized protein, contains DUF3084 domain [Function unknown];
542-714 5.52e-03

Uncharacterized protein, contains DUF3084 domain [Function unknown];


Pssm-ID: 443500 [Multi-domain]  Cd Length: 370  Bit Score: 41.04  E-value: 5.52e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  542 IPEKQILNDQLKQVQQNSLH-RDSLVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREihNKQQLQ 620
Cdd:COG4372     37 LFELDKLQEELEQLREELEQaREELEQLEEELEQARSELEQLEEELEELNEQLQAAQAELAQAQEELESLQE--EAEELQ 114
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  621 KQ-KSMEAERlKQKEQERKiiELEKQKEEAQRRAQERDKQwLEHVQQedehqrprklhEEEKLKREESVKKKDGEEKGKQ 699
Cdd:COG4372    115 EElEELQKER-QDLEQQRK--QLEAQIAELQSEIAEREEE-LKELEE-----------QLESLQEELAALEQELQALSEA 179
                          170
                   ....*....|....*
gi 1034627469  700 EAQDKLGRLFHQHQE 714
Cdd:COG4372    180 EAEQALDELLKEANR 194
PRK00409 PRK00409
recombination and DNA strand exchange inhibitor protein; Reviewed
580-686 5.71e-03

recombination and DNA strand exchange inhibitor protein; Reviewed


Pssm-ID: 234750 [Multi-domain]  Cd Length: 782  Bit Score: 41.35  E-value: 5.71e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  580 QHLRDQLDEVEKETRSKLQEIDIFNNQLKElreihNKQQLQKQKsmEAERLKQKEQERKIIElEKQKEEAQRRAQERDKQ 659
Cdd:PRK00409   526 EELERELEQKAEEAEALLKEAEKLKEELEE-----KKEKLQEEE--DKLLEEAEKEAQQAIK-EAKKEADEIIKELRQLQ 597
                           90       100       110
                   ....*....|....*....|....*....|....*
gi 1034627469  660 WLEHVQQ-----EDEHQR---PRKLHEEEKLKREE 686
Cdd:PRK00409   598 KGGYASVkahelIEARKRlnkANEKKEKKKKKQKE 632
SH3_SH3RF3_1 cd11928
First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
1080-1135 5.72e-03

First Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the first SH3 domain, located at the N-terminal half, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212861  Cd Length: 54  Bit Score: 36.82  E-value: 5.72e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGkkrqiGWFPANYVKL 1135
Cdd:cd11928      4 KALYSYEGKEPGDLKFNKGDIIILRRKVDENWYHGELNGCH-----GFLPASYIQC 54
WEMBL pfam05701
Weak chloroplast movement under blue light; WEMBL consists of several plant proteins required ...
325-652 5.73e-03

Weak chloroplast movement under blue light; WEMBL consists of several plant proteins required for the chloroplast avoidance response under high intensity blue light. This avoidance response consists in the relocation of chloroplasts on the anticlinal side of exposed cells. Acts in association with PMI2 to maintain the velocity of chloroplast photo-relocation movement via the regulation of cp-actin filaments. Thus several member-sequences are described as "myosin heavy chain-like".


Pssm-ID: 461718 [Multi-domain]  Cd Length: 562  Bit Score: 41.17  E-value: 5.73e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  325 VDQRLPEEPVLEDEQQQLEKKLPVTFEDKKRE------NFERGN--------------LELEKRRQALLEQQRKE----- 379
Cdd:pfam05701  270 MESKLKEEADGEGNEKKTSTSIQAALASAKKEleevkaNIEKAKdevnclrvaaaslrSELEKEKAELASLRQREgmasi 349
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  380 --QERLAQLERAEQERKE-RERQEQERKRQLELEKQLEKqrelerqreeerrkeierreaAKRELERQRQLEweRNRRQE 456
Cdd:pfam05701  350 avSSLEAELNRTKSEIALvQAKEKEAREKMVELPKQLQQ---------------------AAQEAEEAKSLA--QAAREE 406
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  457 LlnqrNKEQEDIVVLKAKKKTLEFELEAlndkkhqlegklqdircrltTQRqEIESTNKSRELRIAEIthlqqqlqesqq 536
Cdd:pfam05701  407 L----RKAKEEAEQAKAAASTVESRLEA--------------------VLK-EIEAAKASEKLALAAI------------ 449
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  537 mlgrlipeKQILNDQLKQVQQNSLHRDSLVTL---------KRALEAKELARQHLRDQLDEVE--KETRSKLQEidifnn 605
Cdd:pfam05701  450 --------KALQESESSAESTNQEDSPRGVTLsleeyyelsKRAHEAEELANKRVAEAVSQIEeaKESELRSLE------ 515
                          330       340       350       360       370
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  606 QLKEL-REIHNKQQLQKQKSMEAERLKQ----KEQerkiiELEKQKEEAQRR 652
Cdd:pfam05701  516 KLEEVnREMEERKEALKIALEKAEKAKEgklaAEQ-----ELRKWRAEHEQR 562
SH3_Shank2 cd11983
Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 2; Shank2, also ...
1081-1133 5.80e-03

Src homology 3 domain of SH3 and multiple ankyrin repeat domains protein 2; Shank2, also called ProSAP1 (Proline-rich synapse-associated protein 1) or CortBP1 (Cortactin-binding protein 1), is found in neurons, glia, endocrine cells, liver, and kidney. It plays a role in regulating dendritic spine volume and branching and postsynaptic clustering. Mutations in the Shank2 gene are associated with autism spectrum disorder and mental retardation. Shank proteins carry scaffolding functions through multiple sites of protein-protein interaction in its domain architecture, including ankyrin (ANK) repeats, a long proline rich region, as well as SH3, PDZ, and SAM domains. The SH3 domain of Shank binds GRIP, a scaffold protein that binds AMPA receptors and Eph receptors/ligands. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212916  Cd Length: 52  Bit Score: 36.44  E-value: 5.80e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1034627469 1081 VIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGelQARGkkrQIGWFPANYV 1133
Cdd:cd11983      5 VVKSYQPQVEGEIPLHKGDRVKVLSIGEGGFWEG--SARG---HVGWFPAECV 52
tolA_full TIGR02794
TolA protein; TolA couples the inner membrane complex of itself with TolQ and TolR to the ...
574-704 5.84e-03

TolA protein; TolA couples the inner membrane complex of itself with TolQ and TolR to the outer membrane complex of TolB and OprL (also called Pal). Most of the length of the protein consists of low-complexity sequence that may differ in both length and composition from one species to another, complicating efforts to discriminate TolA (the most divergent gene in the tol-pal system) from paralogs such as TonB. Selection of members of the seed alignment and criteria for setting scoring cutoffs are based largely conserved operon struction. //The Tol-Pal complex is required for maintaining outer membrane integrity. Also involved in transport (uptake) of colicins and filamentous DNA, and implicated in pathogenesis. Transport is energized by the proton motive force. TolA is an inner membrane protein that interacts with periplasmic TolB and with outer membrane porins ompC, phoE and lamB. [Transport and binding proteins, Other, Cellular processes, Pathogenesis]


Pssm-ID: 274303 [Multi-domain]  Cd Length: 346  Bit Score: 40.98  E-value: 5.84e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  574 AKELARQHLRDQLDEVEKETRSKLQEIDIFNNQLKELREIH-NKQQLQKQKSMEAERLKQKEQERKIIEL-EKQKEEAQR 651
Cdd:TIGR02794   47 AVAQQANRIQQQKKPAAKKEQERQKKLEQQAEEAEKQRAAEqARQKELEQRAAAEKAAKQAEQAAKQAEEkQKQAEEAKA 126
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1034627469  652 RA---------QERDKQWLEHVQQEDEHQRPRKLHEEEKLKREESVKKKDGEEKGKQEAQDK 704
Cdd:TIGR02794  127 KQaaeakakaeAEAERKAKEEAAKQAEEEAKAKAAAEAKKKAEEAKKKAEAEAKAKAEAEAK 188
SH3_Nck2_1 cd11899
First Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth ...
1160-1210 5.93e-03

First Src Homology 3 domain of Nck2 adaptor protein; Nck2 (also called Nckbeta or Growth factor receptor-bound protein 4, Grb4) plays a crucial role in connecting signaling pathways of tyrosine kinase receptors and important effectors in actin dynamics and cytoskeletal remodeling. It binds neuronal signaling proteins such as ephrinB and Disabled-1 (Dab-1) exclusively. Nck adaptor proteins regulate actin cytoskeleton dynamics by linking proline-rich effector molecules to protein tyrosine kinases and phosphorylated signaling intermediates. They contain three SH3 domains and a C-terminal SH2 domain. They function downstream of the PDGFbeta receptor and are involved in Rho GTPase signaling and actin dynamics. Vertebrates contain two Nck adaptor proteins: Nck1 (also called Nckalpha) and Nck2, which show partly overlapping functions but also bind distinct targets. The first SH3 domain of Nck2 binds the PxxDY sequence in the CD3e cytoplasmic tail; this binding inhibits phosphorylation by Src kinases, resulting in the downregulation of TCR surface expression. SH3 domains are protein interaction domains that usually bind to proline-rich ligands with moderate affinity and selectivity, preferentially a PxxP motif. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212832 [Multi-domain]  Cd Length: 58  Bit Score: 36.65  E-value: 5.93e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1160 VIGMYDYTAQNDDELAFNKGQIINVLNkEDPDWWK-GEVNGQVGLFPSNYVK 1210
Cdd:cd11899      6 VIAKWDYTAQQDQELDIKKNERLWLLD-DSKTWWRvRNAANRTGYVPSNYVE 56
SH3_ARHGEF16_26 cd11938
Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF16 and ARHGEF26; ...
751-802 5.95e-03

Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF16 and ARHGEF26; ARHGEF16, also called ephexin-4, acts as a GEF for RhoG, activating it by exchanging bound GDP for free GTP. RhoG is a small GTPase that is a crucial regulator of Rac in migrating cells. ARHGEF16 interacts directly with the ephrin receptor EphA2 and mediates cell migration and invasion in breast cancer cells by activating RhoG. ARHGEF26, also called SGEF (SH3 domain-containing guanine exchange factor), also activates RhoG. It is highly expressed in liver and may play a role in regulating membrane dynamics. ARHGEF16 and ARHGEF26 contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212871  Cd Length: 55  Bit Score: 36.75  E-value: 5.95e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  751 FESRSHDEITIQPGDIVMVkgewvdeSQTGEPGWLGGEL--KGKTGWFPANYAE 802
Cdd:cd11938      8 YTAKQPDELSLQQADVVLV-------LQTESDGWYYGERlrDGERGWFPSSCAK 54
SH3_EFS cd12003
Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, ...
746-806 6.01e-03

Src homology 3 domain of CAS (Crk-Associated Substrate) scaffolding protein family member, Embryonal Fyn-associated Substrate; EFS is also called HEFS, CASS3 (Cas scaffolding protein family member 3) or SIN (Src-interacting protein). It was identified based on interactions with the Src kinases, Fyn and Yes. It plays a role in thymocyte development and acts as a negative regulator of T cell proliferation. CAS proteins function as molecular scaffolds to regulate protein complexes that are involved in many cellular processes. They share a common domain structure that includes an N-terminal SH3 domain, an unstructured substrate domain that contains many YxxP motifs, a serine-rich four-helix bundle, and a FAT-like C-terminal domain. The SH3 domain of CAS proteins binds to diverse partners including FAK, FRNK, Pyk2, PTP-PEST, DOCK180, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212936  Cd Length: 62  Bit Score: 36.79  E-value: 6.01e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVkgewVDESQTGEPGWLGGELKGKTGWFPANYAEKIPE 806
Cdd:cd12003      4 KALYDNAAESPEELSFRRGDVLMV----LKREHGSLPGWWLCSLHGQQGIAPANRLRLLPT 60
SH3_Eve1_3 cd11816
Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
920-966 6.12e-03

Third Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212750 [Multi-domain]  Cd Length: 51  Bit Score: 36.62  E-value: 6.12e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQ-QDMWWFGEVQGQKGWFPKSYV 966
Cdd:cd11816      4 ARFDFEGEQEDELSFSEGDVITLKEYvGEEWAKGELNGKIGIFPLNFV 51
SH3_Lyn cd12004
Src homology 3 domain of Lyn Protein Tyrosine Kinase; Lyn is a member of the Src subfamily of ...
920-966 6.26e-03

Src homology 3 domain of Lyn Protein Tyrosine Kinase; Lyn is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Lyn is expressed in B lymphocytes and myeloid cells. It exhibits both positive and negative regulatory roles in B cell receptor (BCR) signaling. Lyn, as well as Fyn and Blk, promotes B cell activation by phosphorylating ITAMs (immunoreceptor tyr activation motifs) in CD19 and in Ig components of BCR. It negatively regulates signaling by its unique ability to phosphorylate ITIMs (immunoreceptor tyr inhibition motifs) in cell surface receptors like CD22 and CD5. Lyn also plays an important role in G-CSF receptor signaling by phosphorylating a variety of adaptor molecules. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212937 [Multi-domain]  Cd Length: 56  Bit Score: 36.51  E-value: 6.26e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGE--VQGQKGWFPKSYV 966
Cdd:cd12004      4 ALYPYDGIHEDDLSFKKGEKLKVIEEHGEWWKARslTTKKEGFIPSNYV 52
SH3_Eve1_4 cd11817
Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 ...
747-800 6.26e-03

Fourth Src homology 3 domain of ADAM-binding protein Eve-1; Eve-1, also called SH3 domain-containing protein 19 (SH3D19) or EEN-binding protein (EBP), exists in multiple alternatively spliced isoforms. The longest isoform contains five SH3 domain in the C-terminal region and seven proline-rich motifs in the N-terminal region. It is abundantly expressed in skeletal muscle and heart, and may be involved in regulating the activity of ADAMs (A disintegrin and metalloproteases). Eve-1 interacts with EEN, an endophilin involved in endocytosis and may be the target of the MLL-EEN fusion protein that is implicated in leukemogenesis. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212751 [Multi-domain]  Cd Length: 50  Bit Score: 36.30  E-value: 6.26e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKgEWVDESqtgepgWLGGELKGKTGWFPANY 800
Cdd:cd11817      4 ALYDFTGETEEDLSFQRGDRILVT-EHLDAE------WSRGRLNGREGIFPRAF 50
CCDC158 pfam15921
Coiled-coil domain-containing protein 158; CCDC158 is a family of proteins found in eukaryotes. ...
338-648 6.27e-03

Coiled-coil domain-containing protein 158; CCDC158 is a family of proteins found in eukaryotes. The function is not known.


Pssm-ID: 464943 [Multi-domain]  Cd Length: 1112  Bit Score: 41.64  E-value: 6.27e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  338 EQQQLEKKLPVTFEDKKREN--FERGNLELE----KRRQALLEQQRKEQERLAQLER----AEQE----RKERERQEQER 403
Cdd:pfam15921  293 QANSIQSQLEIIQEQARNQNsmYMRQLSDLEstvsQLRSELREAKRMYEDKIEELEKqlvlANSElteaRTERDQFSQES 372
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  404 KrqlELEKQLEKqrelerqreeerrkeierREAAKRELERQRQLEWERNRRQELLNQRNKEQEDivvlkakkkTLEFELE 483
Cdd:pfam15921  373 G---NLDDQLQK------------------LLADLHKREKELSLEKEQNKRLWDRDTGNSITID---------HLRRELD 422
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  484 ALNDKKHQLEGKLQDIR--CRLTTQRQ--EIESTNKSRElRIAEIThlqQQLQESQQMLGRLIPE----KQILNDQLKQV 555
Cdd:pfam15921  423 DRNMEVQRLEALLKAMKseCQGQMERQmaAIQGKNESLE-KVSSLT---AQLESTKEMLRKVVEEltakKMTLESSERTV 498
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  556 QQNSLhrdSLVTLKRALEAKELARQHLRDQLDeveketrSKLQEIDIFNNQLKELREIhnkqqlqkQKSMEAERLKQKEQ 635
Cdd:pfam15921  499 SDLTA---SLQEKERAIEATNAEITKLRSRVD-------LKLQELQHLKNEGDHLRNV--------QTECEALKLQMAEK 560
                          330
                   ....*....|...
gi 1034627469  636 ErKIIELEKQKEE 648
Cdd:pfam15921  561 D-KVIEILRQQIE 572
SH3_Intersectin1_5 cd11995
Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor ...
747-802 6.29e-03

Fifth Src homology 3 domain (or SH3E) of Intersectin-1; Intersectin-1 (ITSN1) is an adaptor protein that functions in exo- and endocytosis, actin cytoskeletal reorganization, and signal transduction. It plays a role in clathrin-coated pit (CCP) formation. It binds to many proteins through its multidomain structure and facilitate the assembly of multimeric complexes. ITSN1 localizes in membranous organelles, CCPs, the Golgi complex, and may be involved in the cell membrane trafficking system. It exists in alternatively spliced short and long isoforms. The short isoform contains two Eps15 homology domains (EH1 and EH2), a coiled-coil region and five SH3 domains (SH3A-E), while the long isoform, in addition, contains RhoGEF (also called Dbl-homologous or DH), Pleckstrin homology (PH) and C2 domains. The fifth SH3 domain (or SH3E) of ITSN1 has been shown to bind many protein partners including SGIP1, Sos1, dynamin1/2, CIN85, c-Cbl, SHIP2, N-WASP, and synaptojanin-1, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212928 [Multi-domain]  Cd Length: 54  Bit Score: 36.47  E-value: 6.29e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469  747 ALYPFESRSHDEITIQPGDIVMVKGEwvdesqtGEPGWLGGELKGKTGWFPANYAE 802
Cdd:cd11995      5 GMYDYTAQNDDELAFSKGQIINVLNK-------EDPDWWKGELNGQVGLFPSNYVK 53
SH3_ARHGEF5_19 cd11940
Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ...
751-802 6.35e-03

Src homology 3 domain of the Rho guanine nucleotide exchange factors ARHGEF5 and ARHGEF19; ARHGEF5, also called ephexin-3 or TIM (Transforming immortalized mammary oncogene), is a potent activator of RhoA and it plays roles in regulating cell shape, adhesion, and migration. It binds to the SH3 domain of Src and is involved in regulating Src-induced podosome formation. ARHGEF19, also called ephexin-2 or WGEF (weak-similarity GEF), is highly expressed in the intestine, liver, heart and kidney. It activates RhoA, Cdc42, and Rac 1, and has been shown to activate RhoA in the Wnt-PCP (planar cell polarity) pathway. It is involved in the regulation of cell polarity and cytoskeletal reorganization. ARHGEF5 and ARHGEF19 contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and SH3 domains. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212873  Cd Length: 55  Bit Score: 36.69  E-value: 6.35e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  751 FESRSHDEITIQPGDIVMVKgewvdesQTGEPGWLGGEL--KGKTGWFPANYAE 802
Cdd:cd11940      8 YKAQENDELTLEKADIIMVR-------QQSSDGWLEGVRlsDGERGWFPQSHVE 54
CCDC66 pfam15236
Coiled-coil domain-containing protein 66; This protein family, named Coiled-coil ...
340-408 6.50e-03

Coiled-coil domain-containing protein 66; This protein family, named Coiled-coil domain-containing protein 66 (CCDC) refers to a protein domain found in eukaryotes, and is approximately 160 amino acids in length. CCDC66 protein is detected mainly in the inner segments of photoreceptors in many vertebrates including mice and humans. It has been found in dogs, that a mutation in the CCDC66 gene causes generalized progressive retinal atrophy (gPRA). This shows that the protein encoded for by this gene is vital for healthy vision and guards against photoreceptor cell degeneration. The structure of CCDC66 proteins includes a heptad repeat pattern which contains at least one coiled-coil domain. There are at least two or more alpha-helices which form a cable-like structure.


Pssm-ID: 434558 [Multi-domain]  Cd Length: 154  Bit Score: 39.01  E-value: 6.50e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  340 QQLEKKLPVTFEDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAE----------------QERKERERQEQeR 403
Cdd:pfam15236   63 KQLEEKERQKKLEEERRRQEEQEEEERLRREREEEQKQFEEERRKQKEKEEamtrktqallqamqkaQELAQRLKQEQ-R 141

                   ....*
gi 1034627469  404 KRQLE 408
Cdd:pfam15236  142 IRELA 146
SH3_Tks_3 cd12017
Third Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
932-966 6.55e-03

Third Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the third SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212950  Cd Length: 53  Bit Score: 36.28  E-value: 6.55e-03
                           10        20        30
                   ....*....|....*....|....*....|....*.
gi 1034627469  932 LNFNKNDVITVLEQQ-DMWWFGEVQGQKGWFPKSYV 966
Cdd:cd12017     16 ISFQKGQKVEVIDKNpSGWWYVKIDGKEGWAPSSYI 51
GBP_C cd16269
Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal ...
363-493 6.89e-03

Guanylate-binding protein, C-terminal domain; Guanylate-binding protein (GBP), C-terminal domain. Guanylate-binding proteins (GBPs) are synthesized after activation of the cell by interferons. The biochemical properties of GBPs are clearly different from those of Ras-like and heterotrimeric GTP-binding proteins. They bind guanine nucleotides with low affinity (micromolar range), are stable in their absence, and have a high turnover GTPase. In addition to binding GDP/GTP, they have the unique ability to bind GMP with equal affinity and hydrolyze GTP not only to GDP, but also to GMP. This C-terminal domain has been shown to mediate inhibition of endothelial cell proliferation by inflammatory cytokines.


Pssm-ID: 293879 [Multi-domain]  Cd Length: 291  Bit Score: 40.64  E-value: 6.89e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  363 LELEKRRQALLEQQRKEQERlaQLERAEQERKERERQEQERKRQLEleKQLEKqrelerqreeerrkeierreaakrelE 442
Cdd:cd16269    200 IEAERAKAEAAEQERKLLEE--QQRELEQKLEDQERSYEEHLRQLK--EKMEE--------------------------E 249
                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  443 RQRQLEwernRRQELLNQRNKEQEdivvlKAKKKTLEFELEALNDKKHQLE 493
Cdd:cd16269    250 RENLLK----EQERALESKLKEQE-----ALLEEGFKEQAELLQEEIRSLK 291
SH3_SKAP1-like cd11866
Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1 and similar proteins; This ...
1007-1055 6.92e-03

Src Homology 3 domain of Src Kinase-Associated Phosphoprotein 1 and similar proteins; This subfamily is composed of SKAP1, SKAP2, and similar proteins. SKAP1 and SKAP2 are immune cell-specific adaptor proteins that play roles in T- and B-cell adhesion, respectively, and are thus important in the migration of T- and B-cells to sites of inflammation and for movement during T-cell conjugation with antigen-presenting cells. Both SKAP1 and SKAP2 bind to ADAP (adhesion and degranulation-promoting adaptor protein), among many other binding partners. They contain a pleckstrin homology (PH) domain, a C-terminal SH3 domain, and several tyrosine phosphorylation sites. The SH3 domain of SKAP1 is necessary for its ability to regulate T-cell conjugation with antigen-presenting cells and the formation of LFA-1 clusters. SKAP1 binds primarily to a proline-rich region of ADAP through its SH3 domain; its degradation is regulated by ADAP. A secondary interaction occurs via the ADAP SH3 domain and the RKxxYxxY motif in SKAP1. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212800  Cd Length: 53  Bit Score: 36.26  E-value: 6.92e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKKDGD---WWTGTVGDKAGVFPSNYV 1055
Cdd:cd11866      2 YMGLWDCSGNEPDELSFKRGDLIYIISKEYDsfgWWVGELNGKVGLVPKDYL 53
COG1340 COG1340
Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];
364-635 6.98e-03

Uncharacterized coiled-coil protein, contains DUF342 domain [Function unknown];


Pssm-ID: 440951 [Multi-domain]  Cd Length: 297  Bit Score: 40.66  E-value: 6.98e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  364 ELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQL--ELEKQLEKqrelerqreeerrkeierreaaKREL 441
Cdd:COG1340     12 ELEEKIEELREEIEELKEKRDELNEELKELAEKRDELNAQVKELreEAQELREK----------------------RDEL 69
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  442 -ERQRQLeweRNRRQELLNQRNKEQEDIVVLKAKKKT-----------------LEFELE--ALN-DKKHQLEGKLQDIR 500
Cdd:COG1340     70 nEKVKEL---KEERDELNEKLNELREELDELRKELAElnkaggsidklrkeierLEWRQQteVLSpEEEKELVEKIKELE 146
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  501 CRLTTQRQEIESTNKSRELRiAEITHLQQQLQESQQMLGRLIPEKQILNDQLKQVQQnslHRDSLVtlKRALEAKELARQ 580
Cdd:COG1340    147 KELEKAKKALEKNEKLKELR-AELKELRKEAEEIHKKIKELAEEAQELHEEMIELYK---EADELR--KEADELHKEIVE 220
                          250       260       270       280       290       300
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  581 ------HLRDQLDEVEKETRSKLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQ 635
Cdd:COG1340    221 aqekadELHEEIIELQKELRELRKELKKLRKKQRALKREKEKEELEEKAEEIFEKLKKGEK 281
SH3_SH3RF3_3 cd11925
Third Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ...
1007-1055 7.00e-03

Third Src Homology 3 domain of SH3 domain containing ring finger 3, an E3 ubiquitin-protein ligase; SH3RF3 is also called POSH2 (Plenty of SH3s 2) or SH3MD4 (SH3 multiple domains protein 4). It is a scaffold protein with E3 ubiquitin-protein ligase activity. It was identified in the screen for interacting partners of p21-activated kinase 2 (PAK2). It may play a role in regulating JNK mediated apoptosis in certain conditions. It also interacts with GTP-loaded Rac1. SH3RF3 is highly homologous to SH3RF1; it also contains an N-terminal RING finger domain and four SH3 domains. This model represents the third SH3 domain, located in the middle, of SH3RF3. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212858  Cd Length: 57  Bit Score: 36.51  E-value: 7.00e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1007 FIAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGTV--GDKAGVFPSNYV 1055
Cdd:cd11925      3 YLALYAYKPQKNDELELRKGEMYRVIEKCQDgWFKGTSlrTGVSGVFPGNYV 54
SH3_ephexin1_like cd11793
Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange ...
1008-1056 7.04e-03

Src homology 3 domain of ephexin-1-like SH3 domain containing Rho guanine nucleotide exchange factors; Members of this family contain RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), and C-terminal SH3 domains. They include the Rho guanine nucleotide exchange factors ARHGEF5, ARHGEF16, ARHGEF19, ARHGEF26, ARHGEF27 (also called ephexin-1), and similar proteins, and are also called ephexins because they interact directly with ephrin A receptors. GEFs interact with Rho GTPases via their DH domains to catalyze nucleotide exchange by stabilizing the nucleotide-free GTPase intermediate. They play important roles in neuronal development. The SH3 domains of ARHGEFs play an autoinhibitory role through intramolecular interactions with a proline-rich region N-terminal to the DH domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212727 [Multi-domain]  Cd Length: 55  Bit Score: 36.54  E-value: 7.04e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDVILVTKKDGD-WWTGT-VGD-KAGVFPSNYVR 1056
Cdd:cd11793      3 QCVHAYTAQQPDELTLEEGDVVNVLRKMPDgWYEGErLRDgERGWFPSSYTE 54
SH3_CD2AP_2 cd12054
Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ...
1080-1136 7.06e-03

Second Src Homology 3 domain (SH3B) of CD2-associated protein; CD2AP, also called CMS (Cas ligand with Multiple SH3 domains) or METS1 (Mesenchyme-to-Epithelium Transition protein with SH3 domains), is a cytosolic adaptor protein that plays a role in regulating the cytoskeleton. It is critical in cell-to-cell union necessary for kidney function. It also stabilizes the contact between a T cell and antigen-presenting cells. It is primarily expressed in podocytes at the cytoplasmic face of the slit diaphragm and serves as a linker anchoring podocin and nephrin to the actin cytoskeleton. CD2AP contains three SH3 domains, a proline-rich region, and a C-terminal coiled-coil domain. All of these domains enable CD2AP to bind various protein partners and assemble complexes that have been implicated in many different functions. This alignment model represents the second SH3 domain (SH3B) of CD2AP. SH3B binds to c-Cbl in a site (TPSSRPLR is the core binding motif) distinct from the c-Cbl/SH3A binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212987 [Multi-domain]  Cd Length: 55  Bit Score: 36.48  E-value: 7.06e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469 1080 QVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARGkkrqiGWFPANYVKLL 1136
Cdd:cd12054      4 KVLFEYVPQNEDELELKVGDIIDINEEVEEGWWSGTLNGKS-----GLFPSNFVKEL 55
Caldesmon pfam02029
Caldesmon;
331-467 7.07e-03

Caldesmon;


Pssm-ID: 460421 [Multi-domain]  Cd Length: 495  Bit Score: 41.01  E-value: 7.07e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  331 EEPVLEDEQQQLEKKLPV-TFEDKKR----------ENFERGNLELEKRRQALLEQ-QRKEQERLAQ------LERAEQE 392
Cdd:pfam02029  177 EEVKDEKIKKEKKVKYESkVFLDQKRghpevksqngEEEVTKLKVTTKRRQGGLSQsQEREEEAEVFleaeqkLEELRRR 256
                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1034627469  393 RKERERQEQERKRQLELEKQLEKQRELErqreeerrkeierreaaKRELERQRQLEWERNRRQELLNQRNKEQED 467
Cdd:pfam02029  257 RQEKESEEFEKLRQKQQEAELELEELKK-----------------KREERRKLLEEEEQRRKQEEAERKLREEEE 314
SH3_DBS cd11857
Src homology 3 domain of DBL's Big Sister (DBS), a guanine nucleotide exchange factor; DBS, ...
745-799 7.15e-03

Src homology 3 domain of DBL's Big Sister (DBS), a guanine nucleotide exchange factor; DBS, also called MCF2L (MCF2-transforming sequence-like protein) or OST, is a Rho GTPase guanine nucleotide exchange factor (RhoGEF), facilitating the exchange of GDP and GTP. It was originally isolated from a cDNA screen for sequences that cause malignant growth. It plays roles in regulating clathrin-mediated endocytosis and cell migration through its activation of Rac1 and Cdc42. Depending on cell type, DBS can also activate RhoA and RhoG. DBS contains a Sec14-like domain, spectrin-like repeats, a RhoGEF [or Dbl homology (DH)] domain, a Pleckstrin homology (PH) domain, and an SH3 domain. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212791  Cd Length: 55  Bit Score: 36.50  E-value: 7.15e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVKGEwvdesqtGEPG-WLGGEL-KGKTGWFPAN 799
Cdd:cd11857      2 YTVVADYEKGGPDDLTVKSGDLVQLIHE-------GDEGqWLVKNLsTRKEGWVPAA 51
TPH pfam13868
Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of ...
436-686 7.16e-03

Trichohyalin-plectin-homology domain; This family is a mixtrue of two different families of eukaryotic proteins. Trichoplein or mitostatin, was first defined as a meiosis-specific nuclear structural protein. It has since been linked with mitochondrial movement. It is associated with the mitochondrial outer membrane, and over-expression leads to reduction in mitochondrial motility whereas lack of it enhances mitochondrial movement. The activity appears to be mediated through binding the mitochondria to the actin intermediate filaments (IFs). The family is in the trichohyalin-plectin-homology domain.


Pssm-ID: 464007 [Multi-domain]  Cd Length: 341  Bit Score: 40.67  E-value: 7.16e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  436 AAKRELERQRQLEwERNRRQELLNQRNKEQEDIVvLKAKKKTLEFELEALNDKKHQLEGKLQDIRCRLTTQRQEiestnK 515
Cdd:pfam13868   17 AAKCNKERDAQIA-EKKRIKAEEKEEERRLDEMM-EEERERALEEEEEKEEERKEERKRYRQELEEQIEEREQK-----R 89
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  516 SRELRIAEIthlqqqlqesqqmlgrlipEKQILNDQLKQVQQNSLhrdslvtlkRALEAKELARQHLRDQLDEVEKETRS 595
Cdd:pfam13868   90 QEEYEEKLQ-------------------EREQMDEIVERIQEEDQ---------AEAEEKLEKQRQLREEIDEFNEEQAE 141
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  596 -KLQEIDIFNNQLKELREIHNKQQLQKQKSMEAERLKQKEQERKIIELEKQKEEAQRRAQERDKQWLEHVQ--------- 665
Cdd:pfam13868  142 wKELEKEEEREEDERILEYLKEKAEREEEREAEREEIEEEKEREIARLRAQQEKAQDEKAERDELRAKLYQeeqerkerq 221
                          250       260
                   ....*....|....*....|....*.
gi 1034627469  666 -----QEDEHQRPRKLHEEEKLKREE 686
Cdd:pfam13868  222 kereeAEKKARQRQELQQAREEQIEL 247
SH3_STAM cd11820
Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as ...
1092-1134 7.28e-03

Src homology 3 domain of Signal Transducing Adaptor Molecules; STAMs were discovered as proteins that are highly phosphorylated following cytokine and growth factor stimulation. They function in cytokine signaling and surface receptor degradation, as well as regulate Golgi morphology. They associate with many proteins including Jak2 and Jak3 tyrosine kinases, Hrs, AMSH, and UBPY. STAM adaptor proteins contain VHS (Vps27, Hrs, STAM homology), ubiquitin interacting (UIM), and SH3 domains. There are two vertebrate STAMs, STAM1 and STAM2, which may be functionally redundant; vertebrate STAMs contain ITAM motifs. They are part of the endosomal sorting complex required for transport (ESCRT-0). STAM2 deficiency in mice did not cause any obvious abnormality, while STAM1 deficiency resulted in growth retardation. Loss of both STAM1 and STAM2 in mice proved lethal, indicating that STAMs are important for embryonic development. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212754 [Multi-domain]  Cd Length: 54  Bit Score: 36.29  E-value: 7.28e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|...
gi 1034627469 1092 QLTLAPGQLILIRKKNPGGWWEGELQargkkRQIGWFPANYVK 1134
Cdd:cd11820     16 ELTFKAGEIITVLDDSDPNWWKGSNH-----RGEGLFPANFVT 53
SH3_Amphiphysin_I cd12140
Src Homology 3 domain of Amphiphysin I; Amphiphysins function primarily in endocytosis and ...
748-804 7.64e-03

Src Homology 3 domain of Amphiphysin I; Amphiphysins function primarily in endocytosis and other membrane remodeling events. They exist in several isoforms and mammals possess two amphiphysin proteins from distinct genes. Amphiphysin I proteins, enriched in the brain and nervous system, contain domains that bind clathrin, Adaptor Protein complex 2 (AP2), dynamin, and synaptojanin. They function in synaptic vesicle endocytosis. Human autoantibodies to amphiphysin I hinder GABAergic signaling and contribute to the pathogenesis of paraneoplastic stiff-person syndrome. Amphiphysins contain an N-terminal BAR domain with an additional N-terminal amphipathic helix (an N-BAR), a variable central domain, and a C-terminal SH3 domain. The SH3 domain of amphiphysins bind proline-rich motifs present in binding partners such as dynamin, synaptojanin, and nsP3. It also belongs to a subset of SH3 domains that bind ubiquitin in a site that overlaps with the peptide binding site. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 213016  Cd Length: 72  Bit Score: 36.80  E-value: 7.64e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1034627469  748 LYPFESRSHDEITIQPGDIVMVKGEWVDESQtgEPGWLGG----------ELKGKTGWFPANYAEKI 804
Cdd:cd12140      8 LHDFEAANSDELELKRGDIVLVVPSETAADQ--DAGWLTGvkesdwlqyrDASAYKGLFPENFTRRL 72
MAD pfam05557
Mitotic checkpoint protein; This family consists of several eukaryotic mitotic checkpoint ...
403-685 7.95e-03

Mitotic checkpoint protein; This family consists of several eukaryotic mitotic checkpoint (Mitotic arrest deficient or MAD) proteins. The mitotic spindle checkpoint monitors proper attachment of the bipolar spindle to the kinetochores of aligned sister chromatids and causes a cell cycle arrest in prometaphase when failures occur. Multiple components of the mitotic spindle checkpoint have been identified in yeast and higher eukaryotes. In S.cerevisiae, the existence of a Mad1-dependent complex containing Mad2, Mad3, Bub3 and Cdc20 has been demonstrated.


Pssm-ID: 461677 [Multi-domain]  Cd Length: 660  Bit Score: 40.88  E-value: 7.95e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  403 RKRQLELEKQLEKqrelerqREEERRKEIERREAAKRELERQ-----RQLEWERNRRQELL-----------NQRNKEQE 466
Cdd:pfam05557    1 RAELIESKARLSQ-------LQNEKKQMELEHKRARIELEKKasalkRQLDRESDRNQELQkrirllekreaEAEEALRE 73
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  467 DIVVLKAKKKTLEFELEALNDKkhqlEGKLQDIRCRLTTQRQEIestnksREL-RIAEITHLQQQlqesqqmlgRLIPEK 545
Cdd:pfam05557   74 QAELNRLKKKYLEALNKKLNEK----ESQLADAREVISCLKNEL------SELrRQIQRAELELQ---------STNSEL 134
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  546 QILNDQLKQVQqnslhrdslvtlKRALEAKELARQHlrdqldeveketRSKLQEIDIFNNQLKELrEIHNKQQLQKQ--- 622
Cdd:pfam05557  135 EELQERLDLLK------------AKASEAEQLRQNL------------EKQQSSLAEAEQRIKEL-EFEIQSQEQDSeiv 189
                          250       260       270       280       290       300
                   ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1034627469  623 KSMEAERLKQKEQERkiiELEKQKEE-AQRRAQERDKQWLEhvqqEDEHQRPRKLHEEEKLKRE 685
Cdd:pfam05557  190 KNSKSELARIPELEK---ELERLREHnKHLNENIENKLLLK----EEVEDLKRKLEREEKYREE 246
SH3_Bbc1 cd11887
Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces ...
746-803 8.05e-03

Src Homology 3 domain of Bbc1 and similar domains; This subfamily is composed of Saccharomyces cerevisiae Bbc1p, also called Mti1p (Myosin tail region-interacting protein), and similar proteins. Bbc1p interacts with and regulates type I myosins in yeast, Myo3p and Myo5p, which are involved in actin cytoskeletal reorganization. It also binds and inhibits Las17, a WASp family protein that functions as an activator of the Arp2/3 complex. Bbc1p contains an N-terminal SH3 domain. SH3 domains bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs; they play a role in the regulation of enzymes by intramolecular interactions, changing the subcellular localization of signal pathway components and mediate multiprotein complex assemblies.


Pssm-ID: 212820 [Multi-domain]  Cd Length: 60  Bit Score: 36.55  E-value: 8.05e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1034627469  746 RALYPFESRSHDEITIQPGDIVMVKGEwVDESqtgepgWLGGELKG-----KTGWFPANYAEK 803
Cdd:cd11887      5 KALYPYESDHEDDLNFDVGQLITVTEE-EDAD------WYFGEYVDsngntKEGIFPKNFVEV 60
C2_E3_ubiquitin_ligase cd04021
C2 domain present in E3 ubiquitin ligase; E3 ubiquitin ligase is part of the ubiquitylation ...
1603-1714 8.07e-03

C2 domain present in E3 ubiquitin ligase; E3 ubiquitin ligase is part of the ubiquitylation mechanism responsible for controlling surface expression of membrane proteins. The sequential action of several enzymes are involved: ubiquitin-activating enzyme E1, ubiquitin-conjugating enzyme E2, and ubiquitin-protein ligase E3 which is responsible for substrate recognition and promoting the transfer of ubiquitin to the target protein. E3 ubiquitin ligase is composed of an N-terminal C2 domain, 4 WW domains, and a HECTc domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions.


Pssm-ID: 175988 [Multi-domain]  Cd Length: 125  Bit Score: 38.03  E-value: 8.07e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1603 VEGIELKPCRSHGKSNPYCEVTMGSQcHITKT--IQDTLNPKWNSncQFFIRDLEQEVLCITVFERDQFSPDDFLGRTEI 1680
Cdd:cd04021      8 VESAKLKSNSKSFKPDPYVEVTVDGQ-PPKKTevSKKTSNPKWNE--HFTVLVTPQSTLEFKVWSHHTLKADVLLGEASL 84
                           90       100       110       120
                   ....*....|....*....|....*....|....*....|....*..
gi 1034627469 1681 RVADI-KKDQGskgpvtKC----LLLH--------EVPTGEIVVRLD 1714
Cdd:cd04021     85 DLSDIlKNHNG------KLenvkLTLNlssenkgsSVKVGELTVILD 125
PRK00106 PRK00106
ribonuclease Y;
558-652 8.09e-03

ribonuclease Y;


Pssm-ID: 178867 [Multi-domain]  Cd Length: 535  Bit Score: 41.01  E-value: 8.09e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  558 NSLHRDSLVTLKRAL-EAKELARQHLrdqlDEVEKETRSKLQEIDIFNNQLKEL--------REIHNKQQL--QKQKSME 626
Cdd:PRK00106    60 KTAKRESKALKKELLlEAKEEARKYR----EEIEQEFKSERQELKQIESRLTERatsldrkdENLSSKEKTleSKEQSLT 135
                           90       100
                   ....*....|....*....|....*.
gi 1034627469  627 AERLKQKEQERKIIELEKQKEEAQRR 652
Cdd:PRK00106   136 DKSKHIDEREEQVEKLEEQKKAELER 161
SH3_Sla1p_3 cd11775
Third Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates ...
1008-1057 8.12e-03

Third Src Homology 3 domain of the fungal endocytic adaptor protein Sla1p; Sla1p facilitates endocytosis by playing a role as an adaptor protein in coupling components of the actin cytoskeleton to the endocytic machinery. It interacts with Abp1p, Las17p and Pan1p, which are activator proteins of actin-related protein 2/3 (Arp2/3). Sla1p contains multiple domains including three SH3 domains, a SAM (sterile alpha motif) domain, and a Sla1 homology domain 1 (SHD1), which binds to the NPFXD motif that is found in many integral membrane proteins such as the Golgi-localized Arf-binding protein Lsb5p and the P4-ATPases, Drs2p and Dnf1p. The third SH3 domain of Sla1p can bind ubiquitin while retaining the ability to bind proline-rich ligands; monoubiquitination of target proteins signals internalization and sorting through the endocytic pathway. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212709 [Multi-domain]  Cd Length: 57  Bit Score: 36.14  E-value: 8.12e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1034627469 1008 IAMYTYESSEQGDLTFQQGDV--ILVTKKDGDWW------TGtvgdKAGVFPSNYVRL 1057
Cdd:cd11775      4 KVLYDFDAQSDDELTVKEGDVvyILDDKKSKDWWmvenvsTG----KEGVVPASYIEI 57
SH3_Sorbs1_1 cd11919
First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; ...
1009-1057 8.37e-03

First Src Homology 3 domain of Sorbin and SH3 domain containing 1 (Sorbs1), also called ponsin; Sorbs1 is also called ponsin, SH3P12, or CAP (c-Cbl associated protein). It is an adaptor protein containing one sorbin homology (SoHo) and three SH3 domains. It binds Cbl and plays a major role in regulating the insulin signaling pathway by enhancing insulin-induced phosphorylation of Cbl. Sorbs1, like vinexin, localizes at cell-ECM and cell-cell adhesion sites where it binds vinculin, paxillin, and afadin. It may function in the control of cell motility. Other interaction partners of Sorbs1 include c-Abl, Sos, flotillin, Grb4, ataxin-7, filamin C, among others. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212852 [Multi-domain]  Cd Length: 55  Bit Score: 36.09  E-value: 8.37e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1009 AMYTYESSEQGDLTFQQGDVILVTKK-DGDWWTGTVGDKAGVFPSNYVRL 1057
Cdd:cd11919      5 AKFDFKAQTLKELPLQKGDIVYIYKQiDQNWYEGEHHGRVGIFPRSYIEL 54
SH3_Lck cd12005
Src homology 3 domain of Lck Protein Tyrosine Kinase; Lck is a member of the Src subfamily of ...
920-966 8.64e-03

Src homology 3 domain of Lck Protein Tyrosine Kinase; Lck is a member of the Src subfamily of proteins, which are cytoplasmic (or non-receptor) PTKs. Lck is expressed in T-cells and natural killer cells. It plays a critical role in T-cell maturation, activation, and T-cell receptor (TCR) signaling. Lck phosphorylates ITAM (immunoreceptor tyr activation motif) sequences on several subunits of TCRs, leading to the activation of different second messenger cascades. Phosphorylated ITAMs serve as binding sites for other signaling factor such as Syk and ZAP-70, leading to their activation and propagation of downstream events. In addition, Lck regulates drug-induced apoptosis by interfering with the mitochondrial death pathway. The apototic role of Lck is independent of its primary function in T-cell signaling. Src kinases contain an N-terminal SH4 domain with a myristoylation site, followed by SH3 and SH2 domains, a tyr kinase domain, and a regulatory C-terminal region containing a conserved tyr. They are activated by autophosphorylation at the tyr kinase domain, but are negatively regulated by phosphorylation at the C-terminal tyr by Csk (C-terminal Src Kinase). The SH3 domain of Src kinases contributes to substrate recruitment by binding adaptor proteins/substrates, and regulation of kinase activity through an intramolecular interaction. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212938 [Multi-domain]  Cd Length: 54  Bit Score: 35.96  E-value: 8.64e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDMWWFGE--VQGQKGWFPKSYV 966
Cdd:cd12005      4 ALYSYEPSHDGDLGFEKGEKLRILEQSGEWWKAQslTTGQEGFIPFNFV 52
SH3_Abi1 cd11971
Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of ...
920-969 8.65e-03

Src homology 3 domain of Abl Interactor 1; Abi1, also called e3B1, is a central regulator of actin cytoskeletal reorganization through interactions with many protein complexes. It is part of WAVE, a nucleation-promoting factor complex, that links Rac 1 activation to actin polymerization causing lamellipodia protrusion at the plasma membrane. Abi1 interact with formins to promote protrusions at the leading edge of motile cells. It also is a target of alpha4 integrin, regulating membrane protrusions at sites of integrin engagement. Abi proteins are adaptor proteins serving as binding partners and substrates of Abl tyrosine kinases. They are involved in regulating actin cytoskeletal reorganization and play important roles in membrane-ruffling, endocytosis, cell motility, and cell migration. Abi proteins contain a homeobox homology domain, a proline-rich region, and a SH3 domain. The SH3 domain of Abi binds to a PxxP motif in Abl. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212904 [Multi-domain]  Cd Length: 59  Bit Score: 36.15  E-value: 8.65e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|.
gi 1034627469  920 ALYPWRAKKDNHLNFNKNDVITVLEQQDMWWF-GEVQGQKGWFPKSYVKLI 969
Cdd:cd11971      4 AIYDYSKDKDDELSFMEGAIIYVIKKNDDGWYeGVCNGVTGLFPGNYVESI 54
SH3_DNMBP_N3 cd11796
Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or ...
1020-1055 9.50e-03

Third N-terminal Src homology 3 domain of Dynamin Binding Protein, also called Tuba; DNMBP or Tuba is a cdc42-specific guanine nucleotide exchange factor (GEF) that contains four N-terminal SH3 domains, a central RhoGEF [or Dbl homology (DH)] domain followed by a Bin/Amphiphysin/Rvs (BAR) domain, and two C-terminal SH3 domains. It provides a functional link between dynamin and key regulatory proteins of the actin cytoskeleton. It plays an important role in regulating cell junction configuration. The four N-terminal SH3 domains of DNMBP binds the GTPase dynamin, which plays an important role in the fission of endocytic vesicles. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212730  Cd Length: 51  Bit Score: 35.79  E-value: 9.50e-03
                           10        20        30
                   ....*....|....*....|....*....|....*..
gi 1034627469 1020 DLTFQQGDVILVTK-KDGDWWTGTVGDKAGVFPSNYV 1055
Cdd:cd11796     15 ELDLREGDVVTITGiLDKGWFRGELNGRRGIFPEGFV 51
ClpA COG0542
ATP-dependent Clp protease, ATP-binding subunit ClpA [Posttranslational modification, protein ...
565-668 9.54e-03

ATP-dependent Clp protease, ATP-binding subunit ClpA [Posttranslational modification, protein turnover, chaperones];


Pssm-ID: 440308 [Multi-domain]  Cd Length: 836  Bit Score: 40.84  E-value: 9.54e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  565 LVTLKRALEAKELARQHLRDQLDEVEKETRSKLQEidifnnQLKELRE----IHNKQQLQKQKSMEAERLKQK--EQERK 638
Cdd:COG0542    413 LDELERRLEQLEIEKEALKKEQDEASFERLAELRD------ELAELEEeleaLKARWEAEKELIEEIQELKEEleQRYGK 486
                           90       100       110
                   ....*....|....*....|....*....|
gi 1034627469  639 IIELEKQKEEAQRRAQERDKQWLEHVQQED 668
Cdd:COG0542    487 IPELEKELAELEEELAELAPLLREEVTEED 516
SH3_Tks_2 cd12016
Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src ...
745-803 9.65e-03

Second Src homology 3 domain of Tyrosine kinase substrate (Tks) proteins; Tks proteins are Src substrates and scaffolding proteins that play important roles in the formation of podosomes and invadopodia, the dynamic actin-rich structures that are related to cell migration and cancer cell invasion. Vertebrates contain two Tks proteins, Tks4 (Tyr kinase substrate with four SH3 domains) and Tks5 (Tyr kinase substrate with five SH3 domains), which display partially overlapping but non-redundant functions. Both associate with the ADAMs family of transmembrane metalloproteases, which function as sheddases and mediators of cell and matrix interactions. Tks5 interacts with N-WASP and Nck, while Tks4 is essential for the localization of MT1-MMP (membrane-type 1 matrix metalloproteinase) to invadopodia. Tks proteins contain an N-terminal Phox homology (PX) domain and four or five SH3 domains. This model characterizes the second SH3 domain of Tks proteins. SH3 domains are protein interaction domains that bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212949  Cd Length: 54  Bit Score: 35.90  E-value: 9.65e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1034627469  745 YRALYPFESRSHDEITIQPGDIVMVKGEWVDesqtgepGWLGGELKGKTGWFPANYAEK 803
Cdd:cd12016      3 YITTQAYKAENEDEIGFETGVVVEVIQKNLD-------GWWKIRYQGKEGWAPATYLKK 54
OmpH pfam03938
Outer membrane protein (OmpH-like); This family includes outer membrane proteins such as OmpH ...
335-415 9.65e-03

Outer membrane protein (OmpH-like); This family includes outer membrane proteins such as OmpH among others. Skp (OmpH) has been characterized as a molecular chaperone that interacts with unfolded proteins as they emerge in the periplasm from the Sec translocation machinery.


Pssm-ID: 461098 [Multi-domain]  Cd Length: 140  Bit Score: 38.33  E-value: 9.65e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  335 LEDEQQQLEKKLpvtfeDKKRENFERGNLELEKRRQALLEQQRKEQERLAQLERAEQERKERERQEQERKRQLELEKQLE 414
Cdd:pfam03938   24 LEKKFKKRQAEL-----EAKQKELQKLYEELQKDGALLEEEREEKEQELQKKEQELQQLQQKAQQELQKKQQELLQPIQD 98

                   .
gi 1034627469  415 K 415
Cdd:pfam03938   99 K 99
C2A_Rasal1_RasA4 cd04054
C2 domain first repeat present in RasA1 and RasA4; Rasal1 and RasA4 are both members of GAP1 ...
1598-1680 9.68e-03

C2 domain first repeat present in RasA1 and RasA4; Rasal1 and RasA4 are both members of GAP1 (GTPase activating protein 1). Rasal1 responds to repetitive Ca2+ signals by associating with the plasma membrane and deactivating Ras. RasA4 suppresses Ras function by enhancing the GTPase activity of Ras proteins resulting in the inactive GDP-bound form of Ras. In this way it can control cellular proliferation and differentiation. Both of these proteins contains two C2 domains, a Ras-GAP domain, a plextrin homology (PH)-like domain, and a Bruton's Tyrosine Kinase (BTK) zinc binding domain. C2 domains fold into an 8-standed beta-sandwich that can adopt 2 structural arrangements: Type I and Type II, distinguished by a circular permutation involving their N- and C-terminal beta strands. Many C2 domains are Ca2+-dependent membrane-targeting modules that bind a wide variety of substances including bind phospholipids, inositol polyphosphates, and intracellular proteins. Most C2 domain proteins are either signal transduction enzymes that contain a single C2 domain, such as protein kinase C, or membrane trafficking proteins which contain at least two C2 domains, such as synaptotagmin 1. However, there are a few exceptions to this including RIM isoforms and some splice variants of piccolo/aczonin and intersectin which only have a single C2 domain. C2 domains with a calcium binding region have negatively charged residues, primarily aspartates, that serve as ligands for calcium ions. This cd contains the first C2 repeat, C2A, and has a type-I topology.


Pssm-ID: 176018 [Multi-domain]  Cd Length: 121  Bit Score: 37.88  E-value: 9.68e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469 1598 LMVNVVEGIELKPCRSHGKSNPYCEVTMGSQCHI-TKTIQDTLNPKWNSNCQFFIrDLEQEVLCITVFERDQFSPDDFLG 1676
Cdd:cd04054      2 LYIRIVEGKNLPAKDITGSSDPYCIVKVDNEVIIrTATVWKTLNPFWGEEYTVHL-PPGFHTVSFYVLDEDTLSRDDVIG 80

                   ....
gi 1034627469 1677 RTEI 1680
Cdd:cd04054     81 KVSL 84
YhaN COG4717
Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];
540-686 9.98e-03

Uncharacterized conserved protein YhaN, contains AAA domain [Function unknown];


Pssm-ID: 443752 [Multi-domain]  Cd Length: 641  Bit Score: 40.52  E-value: 9.98e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  540 RLIPEKQILNDQLKQVQQNslhRDSLVTLKRALEAKELARQHLRDQLDEVEK---------ETRSKLQEIDIFNNQLKEL 610
Cdd:COG4717     75 ELEEELKEAEEKEEEYAEL---QEELEELEEELEELEAELEELREELEKLEKllqllplyqELEALEAELAELPERLEEL 151
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1034627469  611 REihnkqqlqkqksmEAERLKQKEQ-----ERKIIELEKQKEEAQRRAQERDKQWLEHVQQEDEHQRPRKLHEEEKLKRE 685
Cdd:COG4717    152 EE-------------RLEELRELEEeleelEAELAELQEELEELLEQLSLATEEELQDLAEELEELQQRLAELEEELEEA 218

                   .
gi 1034627469  686 E 686
Cdd:COG4717    219 Q 219
SH3_GRB2_like_C cd11805
C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related ...
1079-1134 9.98e-03

C-terminal Src homology 3 domain of Growth factor receptor-bound protein 2 (GRB2) and related proteins; This family includes the adaptor protein GRB2 and related proteins including Drosophila melanogaster Downstream of receptor kinase (DRK), Caenorhabditis elegans Sex muscle abnormal protein 5 (Sem-5), GRB2-related adaptor protein (GRAP), GRAP2, and similar proteins. Family members contain an N-terminal SH3 domain, a central SH2 domain, and a C-terminal SH3 domain. GRB2/Sem-5/DRK is a critical signaling molecule that regulates the Ras pathway by linking tyrosine kinases to the Ras guanine nucleotide releasing protein Sos (son of sevenless), which converts Ras to the active GTP-bound state. GRAP2 plays an important role in T cell receptor (TCR) signaling by promoting the formation of the SLP-76:LAT complex, which couples the TCR to the Ras pathway. GRAP acts as a negative regulator of T cell receptor (TCR)-induced lymphocyte proliferation by downregulating the signaling to the Ras/ERK pathway. The C-terminal SH3 domains (SH3c) of GRB2 and GRAP2 have been shown to bind to classical PxxP motif ligands, as well as to non-classical motifs. GRB2 SH3c binds Gab2 (Grb2-associated binder 2) through epitopes containing RxxK motifs, while the SH3c of GRAP2 binds to the phosphatase-like protein HD-PTP via a RxxxxK motif. SH3 domains are protein interaction domains that typically bind to proline-rich ligands with moderate affinity and selectivity, preferentially to PxxP motifs. They play versatile and diverse roles in the cell including the regulation of enzymes, changing the subcellular localization of signaling pathway components, and mediating the formation of multiprotein complex assemblies.


Pssm-ID: 212739 [Multi-domain]  Cd Length: 53  Bit Score: 36.07  E-value: 9.98e-03
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*.
gi 1034627469 1079 AQVIASYTATGPEQLTLAPGQLILIRKKNPGGWWEGELQARgkkrqIGWFPANYVK 1134
Cdd:cd11805      2 VQALYDFNPQEPGELEFRRGDIITVLDSSDPDWWKGELRGR-----VGIFPANYVQ 52
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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