Ankyrin repeat and sterile alpha motif (SAM) domain-containing (Anks) protein family Phosphotyrosine-binding (PTB) domain; Both AIDA-1b (AbetaPP intracellular domain-associated protein 1b) and Odin (also known as ankyrin repeat and sterile alpha motif domain-containing 1A; ANKS1A) belong to the Anks protein family. Both of these family members interacts with the EphA8 receptor. Ank members consists of ankyrin repeats, a SAM domain and a C-terminal PTB domain which is crucial for interaction with the juxtamembrane (JM) region of EphA8. PTB domains are classified into three groups, namely, phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains of which the Anks PTB is a member. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 144 QYWQHHPEKLIFQSCDYKAFYLGSMLIKELRGTESTQDACAKMRancqKSTEQMKKVPTIILSVSYKGVKFIDATNKNII 223
Cdd:cd01274    1 TQWRHSPEKLITGSVNYEAHYLGSTEIKELRGTESTKKAIQKLK----KSTREMKKIPTIILSISYKGVKFIDATTKNLI 76

                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 224 AEHEIRNISCAAQDPEDLSTFAYITKDLKSNHHYCHVFTAFDVNLAYEIILTLGQAFEVAYQLALQARKG 293
Cdd:cd01274   77 CEHEIRNISCACQDPEDLNTFAYITKDLKTDHHYCHVFCVLTVDLATEIILTLGQAFEVAYQLALRAQKS 146

SAM (Sterile alpha motif ); SAM (Sterile Alpha Motif) domain is a module consisting of approximately 70 amino acids. This domain is found in the Fungi/Metazoa group and in a restricted number of bacteria. Proteins with SAM domains are represented by a wide variety of domain architectures and have different intracellular localization, including nucleus, cytoplasm and membranes. SAM domains have diverse functions. They can interact with proteins, RNAs and membrane lipids, contain site of phosphorylation and/or kinase docking site, and play a role in protein homo and hetero dimerization/oligomerization in processes ranging from signal transduction to regulation of transcription. Mutations in SAM domains have been linked to several diseases.

                         10        20        30        40        50
                 ....*....|....*....|....*....|....*....|....*....|..
gi 323276630  51 DGYHPTSVAEWLDSIELGDYTKAFLINGYTSMDLLKKIWEVELINqssVCEI 102
Cdd:cd09500    1 DGNSPASVSEWLDSIGLGDYIETFLKHGYTSMERVKRIWEVELTN---VLEI 49

Ankyrin repeat and sterile alpha motif (SAM) domain-containing (Anks) protein family Phosphotyrosine-binding (PTB) domain; Both AIDA-1b (AbetaPP intracellular domain-associated protein 1b) and Odin (also known as ankyrin repeat and sterile alpha motif domain-containing 1A; ANKS1A) belong to the Anks protein family. Both of these family members interacts with the EphA8 receptor. Ank members consists of ankyrin repeats, a SAM domain and a C-terminal PTB domain which is crucial for interaction with the juxtamembrane (JM) region of EphA8. PTB domains are classified into three groups, namely, phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains of which the Anks PTB is a member. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 144 QYWQHHPEKLIFQSCDYKAFYLGSMLIKELRGTESTQDACAKMRancqKSTEQMKKVPTIILSVSYKGVKFIDATNKNII 223
Cdd:cd01274    1 TQWRHSPEKLITGSVNYEAHYLGSTEIKELRGTESTKKAIQKLK----KSTREMKKIPTIILSISYKGVKFIDATTKNLI 76

                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 224 AEHEIRNISCAAQDPEDLSTFAYITKDLKSNHHYCHVFTAFDVNLAYEIILTLGQAFEVAYQLALQARKG 293
Cdd:cd01274   77 CEHEIRNISCACQDPEDLNTFAYITKDLKTDHHYCHVFCVLTVDLATEIILTLGQAFEVAYQLALRAQKS 146

SAM domain of AIDA1AB-like proteins, repeat 1; SAM (sterile alpha motif) domain repeat 1 of AIDA1AB-like proteins is a protein-protein interaction domain. AIDA1AB-like proteins have two tandem SAM domains. They may form an intramolecular head-to-tail homodimer. One of two basic motifs of the nuclear localization signal (NLS) is located within helix 5 of SAM2 (motif HKRK). This signal plays a role in decoupling of SAM2 from SAM1, thus facilitating translocation of this type proteins into the nucleus. SAM1 domain has a potential phosphorylation site for CMGC group of serine/threonine kinases. SAM domains of the AIDA1-like subfamily can directly bind ubiquitin and participate in regulating the degradation of ubiquitinated EphA receptors, particularly EPH-A8 receptor. Additionally AIDA1AB-like proteins may participate in the regulation of nucleoplasmic coilin protein interactions.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*.
gi 323276630   1 MANGFDNVQFMGSNVMEDQDLLEIGILNSGHRQRILQAIQLLPKMR 46
Cdd:cd09499   22 LLNGFDDVDFLGSGVMEDQDLKEIGITDEQHRQIILQAARSLPKKK 67

Phosphotyrosine interaction domain (PTB/PID);

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630  160 YKAFYLGSMLIKELR------GTESTQDA--CAKMRANCQKSTEQMKKVP--TIILSVSYKGVKFIDATNKNIIAEHEIR 229
Cdd:pfam00640   1 FAVRYLGSVEVPEERapdkntRMQQAREAirRVKAAKINKIRGLSGETGPgtKVDLFISTDGLKLLNPDTQELIHDHPLV 80

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*
gi 323276630  230 NIS-CAAQDPEDLSTFAYITKDLKSNHHYCHVFTAFDvnLAYEIILTLGQAFEVA 283
Cdd:pfam00640  81 SISfCADGDPDLMRYFAYIARDKATNKFACHVFESED--GAQDIAQSIGQAFALA 133

Sterile alpha motif; Widespread domain in signalling and nuclear proteins. In EPH-related tyrosine kinases, appears to mediate cell-cell initiated signal transduction via the binding of SH2-containing proteins to a conserved tyrosine that is phosphorylated. In many cases mediates homodimerisation.

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|...
gi 323276630    51 DGYHPTSVAEWLDSIELGDYTKAFLINGYTSMDLLKKIWEVEL 93
Cdd:smart00454   2 SQWSPESVADWLESIGLEQYADNFRKNGIDGALLLLLTSEEDL 44

SAM domain (Sterile alpha motif); It has been suggested that SAM is an evolutionarily conserved protein binding domain that is involved in the regulation of numerous developmental processes in diverse eukaryotes. The SAM domain can potentially function as a protein interaction module through its ability to homo- and heterooligomerise with other SAM domains.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|.
gi 323276630    2 ANGFDNVQFMGSnvMEDQDLLEIGILNSGHRQRILQAIQLL 42
Cdd:pfam00536  25 RAGYIDGDALLQ--LTEDDLLKLGVTLLGHRKKILYAIQRL 63

Ankyrin repeat and sterile alpha motif (SAM) domain-containing (Anks) protein family Phosphotyrosine-binding (PTB) domain; Both AIDA-1b (AbetaPP intracellular domain-associated protein 1b) and Odin (also known as ankyrin repeat and sterile alpha motif domain-containing 1A; ANKS1A) belong to the Anks protein family. Both of these family members interacts with the EphA8 receptor. Ank members consists of ankyrin repeats, a SAM domain and a C-terminal PTB domain which is crucial for interaction with the juxtamembrane (JM) region of EphA8. PTB domains are classified into three groups, namely, phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains of which the Anks PTB is a member. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 144 QYWQHHPEKLIFQSCDYKAFYLGSMLIKELRGTESTQDACAKMRancqKSTEQMKKVPTIILSVSYKGVKFIDATNKNII 223
Cdd:cd01274    1 TQWRHSPEKLITGSVNYEAHYLGSTEIKELRGTESTKKAIQKLK----KSTREMKKIPTIILSISYKGVKFIDATTKNLI 76

                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 224 AEHEIRNISCAAQDPEDLSTFAYITKDLKSNHHYCHVFTAFDVNLAYEIILTLGQAFEVAYQLALQARKG 293
Cdd:cd01274   77 CEHEIRNISCACQDPEDLNTFAYITKDLKTDHHYCHVFCVLTVDLATEIILTLGQAFEVAYQLALRAQKS 146

SAM domain of AIDA1AB-like proteins, repeat 1; SAM (sterile alpha motif) domain repeat 1 of AIDA1AB-like proteins is a protein-protein interaction domain. AIDA1AB-like proteins have two tandem SAM domains. They may form an intramolecular head-to-tail homodimer. One of two basic motifs of the nuclear localization signal (NLS) is located within helix 5 of SAM2 (motif HKRK). This signal plays a role in decoupling of SAM2 from SAM1, thus facilitating translocation of this type proteins into the nucleus. SAM1 domain has a potential phosphorylation site for CMGC group of serine/threonine kinases. SAM domains of the AIDA1-like subfamily can directly bind ubiquitin and participate in regulating the degradation of ubiquitinated EphA receptors, particularly EPH-A8 receptor. Additionally AIDA1AB-like proteins may participate in the regulation of nucleoplasmic coilin protein interactions.

                         10        20        30        40
                 ....*....|....*....|....*....|....*....|....*.
gi 323276630   1 MANGFDNVQFMGSNVMEDQDLLEIGILNSGHRQRILQAIQLLPKMR 46
Cdd:cd09499   22 LLNGFDDVDFLGSGVMEDQDLKEIGITDEQHRQIILQAARSLPKKK 67

Cell death protein 6 homolog (CED-6/GULP1) Phosphotyrosine-binding (PTB) domain; CED6 (also known as GULP1: engulfment adaptor PTB domain containing 1) is an adaptor protein involved in the specific recognition and engulfment of apoptotic cells. CED6 has been shown to interact with the cytoplasmic tail of another protein involved in the engulfment of apoptotic cells, CED1. CED6 has a C-terminal PTB domain, which can bind to NPXY motifs. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 148 HHPEKLIFQSCDYKAFYLGSMLIKELRGTESTQDACAKMRANCQKSTEQMKKVPTIILSVSYKGVKFIDATNKNIIAEHE 227
Cdd:cd01273    2 HPPEALIKGHVAYLVKFLGCTEVEQPKGTEVVKEAIRKLKFARQLKKSEGAKLPKVELQISIDGVKIQDPKTKVIMHQFP 81

                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 323276630 228 IRNISCAAQDPEDLSTFAYITKDLKSNHHYCHVFTAfdVNLAYEIILTLGQAFEVAYQLALQ 289
Cdd:cd01273   82 LHRISFCADDKTDKRIFSFIAKDSESEKHLCFVFDS--EKLAEEITLTIGQAFDLAYRRFLE 141

Tyrosine-specific kinase/HM-motif TK (TM/HMTK) Phosphotyrosine-binding (PTB) PH-like fold; TK kinases catalyzes the transfer of the terminal phosphate of ATP to a specific tyrosine residue on its target protein. TK kinases play significant roles in development and cell division. Tyrosine-protein kinases can be divided into two subfamilies: receptor tyrosine kinases, which have an intracellular tyrosine kinase domain, a transmembrane domain and an extracellular ligand-binding domain; and non-receptor (cytoplasmic) tyrosine kinases, which are soluble, cytoplasmic kinases. In HMTK the conserved His-Arg-Asp sequence within the catalytic loop is replaced by a His-Met sequence. TM/HMTK have are 2-3 N-terminal PTB domains. PTB domains in TKs are thought to function analogously to the membrane targeting (PH, myristoylation) and pTyr binding (SH2) domains of Src subgroup kinases. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 160 YKAFYLGSMLIKELRGTESTQDACAKMRAncqksteQMKKVPTIILSVSYKGVKFIDATNKNIIAEHEIRNISCAAQDPE 239
Cdd:cd13161    4 FEAKYLGSVPVKEPKGNDVVMAAVKRLKD-------LKLKPKPVVLVVSSEGIRVVERLTGEVLTNVPIKDISFVTVDPK 76

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....*.
gi 323276630 240 DLSTFAYITKDLKSNHHYCHVFTAFDVnlAYEIILTLGQAFEVAYQ 285
Cdd:cd13161   77 DKKLFAFISHDPRLGRITCHVFRCKRG--AQEICDTIAEAFKAAAE 120

Low Density Lipoprotein Receptor Adaptor Protein 1 (LDLRAP1) in mammals and similar proteins Phosphotyrosine-binding (PTB) PH-like fold; The null mutations in the LDL receptor adaptor protein 1 (LDLRAP1) gene, which serves as an adaptor for LDLR endocytosis in the liver, causes autosomal recessive hypercholesterolemia (ARH). LDLRAP1 contains a single PTB domain. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd contains mammals, insects, and sponges.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 160 YKAFYLGSMLIKELRGTESTQDACAKMRAnCQKSTEqmKKVPTIILSVSYKGVKFIDATNKNIIAEHEIRNIS-CAAqDP 238
Cdd:cd13159    5 FYLKYLGSTLVEKPKGEGATAEAVKTIIA-MAKASG--KKLQKVTLTVSPKGIKVTDSATNETILEVSIYRISyCTA-DA 80

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|...
gi 323276630 239 EDLSTFAYITKDLKSNHHYCHVFTAFDVNLAYEIILTLGQAFE 281
Cdd:cd13159   81 NHDKVFAFIATNQDNEKLECHAFLCAKRKMAQAVTLTVAQAFN 123

Numb Phosphotyrosine-binding (PTB) domain; Numb is a membrane associated adaptor protein which plays critical roles in cell fate determination. Numb proteins are involved in control of asymmetric cell division and cell fate choice, endocytosis, cell adhesion, cell migration, ubiquitination of specific substrates and a number of signaling pathways (Notch, Hedgehog, p53). Mutations in Numb plays a critical role in disease (cancer). Numb has an N-terminal PTB domain and a C-terminal NumbF domain. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 144 QYWQHHPEKLIFQSCDYKAFYLGSMLIKELRGTESTQDACAKMRANcqksteqMKKVPTIILSVSYKGVKFIDATNKNII 223
Cdd:cd01268    1 HQWQADEEAVRSGTCSFPVKYLGCVEVGESRGMQVCEEALKKLKAS-------RKKPVRAVLWVSGDGLRVVDEKTKGLI 73

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|
gi 323276630 224 AEHEIRNISCAAQDPEDLSTFAYITKDLKSNHHYCHVFTA 263
Cdd:cd01268   74 VDQTIEKVSFCAPDRNHERAFSYICRDGTTRRWMCHCFLA 113

Carboxyl-terminal PDZ ligand of neuronal nitric oxide synthase protein (CAPON) Phosphotyrosine-binding (PTB) domain; CAPON (also known as Nitric oxide synthase 1 adaptor protein, NOS1AP, encodes a cytosolic protein that binds to the signaling molecule, neuronal NOS (nNOS). It contains a N-terminal PTB domain that binds to the small monomeric G protein, Dexras1 and a C-terminal PDZ-binding domain that mediates interactions with nNOS. Included in this cd are C. elegan proteins dystrobrevin, DYB-1, which controls neurotransmitter release and muscle Ca(2+) transients by localizing BK channels and DYstrophin-like phenotype and CAPON related,DYC-1, which is functionally related to dystrophin homolog, DYS-1. Mutations in the dystrophin gene causes Duchenne muscular dystrophy. DYS-1 shares sequence similarity, including key motifs, with their mammalian counterparts. These CAPON-like proteins all have a single PTB domain. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 149 HPEKLIFQSCDYKAFYLGSMLIKelRGTeSTQDACAKMRA---NCQKSTEQMKKVpTIILSVSykGVKFI---------- 215
Cdd:cd01270   20 HNEEAFQHGITFQAKYIGSLEVP--RPS-SRVEIVAAMRRiryEFKAKNIKKKKV-TITVSVD--GVKVVlrkkkkkkgw 93

                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 216 -DATNKNIIAEHEIRNISCAAQDPEDLSTFAYITKDLKSNHHYCHVFTAFDVNLAYEIILTLGQAFEVAYQLALQARKGG 294
Cdd:cd01270   94 tWDESKLLLMQHPIYRIFYVSHDSQDLKIFSYIARDGSSNVFKCNVFKSKKKSQAMRIVRTIGQAFEVCHKLSLQHMQGN 173

                 .
gi 323276630 295 H 295
Cdd:cd01270  174 A 174

SAM domain (Sterile alpha motif); It has been suggested that SAM is an evolutionarily conserved protein binding domain that is involved in the regulation of numerous developmental processes in diverse eukaryotes. The SAM domain can potentially function as a protein interaction module through its ability to homo- and heterooligomerise with other SAM domains.

                          10        20        30        40
                  ....*....|....*....|....*....|....*....|...
gi 323276630   51 DGYHPTSVAEWLDSIELGDYTKAFLiNGYTSMDLLKKIWEVEL 93
Cdd:pfam00536   1 DGWSVEDVGEWLESIGLGQYIDSFR-AGYIDGDALLQLTEDDL 42

Sterile alpha motif; Widespread domain in signalling and nuclear proteins. In EPH-related tyrosine kinases, appears to mediate cell-cell initiated signal transduction via the binding of SH2-containing proteins to a conserved tyrosine that is phosphorylated. In many cases mediates homodimerisation.

                           10        20        30        40
                   ....*....|....*....|....*....|....*....|...
gi 323276630    51 DGYHPTSVAEWLDSIELGDYTKAFLINGYTSMDLLKKIWEVEL 93
Cdd:smart00454   2 SQWSPESVADWLESIGLEQYADNFRKNGIDGALLLLLTSEEDL 44

uncharacterized protein LOC417372 Phosphotyrosine-binding (PTB) PH-like fold; The function of LOC417372 and its related proteins are unknown to date. Members here contain a N-terminal RUN domain, followed by a PDZ domain, and a C-terminal PTB domain. The RUN domain is involved in Ras-like GTPase signaling. The PDZ domain (also called DHR/Dlg homologous region or GLGF after its conserved sequence motif) binds C-terminal polypeptides, internal (non-C-terminal) polypeptides, and lipids. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 160 YKAFYLGSMLIKELRGTESTQDAcaKMRANCQKSteqMKKVPTIILsVSYKGVKFIDATNKNIIAEHEIRNISCAAQDPE 239
Cdd:cd13168    3 YKALYLGQVEVGEDGGVEQIESA--AIIVVLESD---LTPKEVLLE-LGEIGVTVWDKSTSEVLFKHSFPEISSCGRRVD 76

                         90       100       110       120
                 ....*....|....*....|....*....|....*....|....
gi 323276630 240 DLSTFAYITKDL---KSNHHYCHVFTAFDVNLAYEIILTLGQAF 280
Cdd:cd13168   77 DPNYFAYIAGDTpcsLAKHFVCYVFEAADEEEAETILQGIAQGF 120

GTPase activating protein for Rab 6 Phosphotyrosine-binding (PTB) domain; GAPCenA is a centrosome-associated GTPase activating protein (GAP) for Rab 6. It consists of an N-terminal PTB domain and a C-terminal TBC domain. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 164 YLGSMLIKELRGTESTQDACAKMRANCQKSTEqmkkvptIILSV--SYKG-VKFIDATNKNIIAEHEIRNIS-CA--AQD 237
Cdd:cd01211    8 YLGCAKVNAPRSETEALRIMAILREQSAQPIK-------VTLSVpnSSEGsVRLYDPTSNTEIASYPIYRILfCArgPDG 80

                         90       100
                 ....*....|....*....|....
gi 323276630 238 PEDLSTFAYITKDLKSNHHYCHVF 261
Cdd:cd01211   81 TSESDCFAFTWSHGETAIFQCHVF 104

SAM domain of EPH-A2 family of tyrosine kinase receptors; SAM (sterile alpha motif) domain of EPH-A2 subfamily of receptor tyrosine kinases is a C-terminal protein-protein interaction domain. This domain is located in the cytoplasmic region of EPH-A2 receptors and appears to mediate cell-cell initiated signal transduction. For example, SAM domain of EPH-A2 receptors interacts with SAM domain of Ship2 proteins (SH2 containing phosphoinositide 5-phosphotase-2) forming heterodimers; such recruitment of Ship2 by EPH-A2 attenuates the positive signal for receptor endocytosis. Eph-A2 is found overexpressed in many types of human cancer, including breast, prostate, lung and colon cancer. High level of expression could induce cancer progression by a variety of mechanisms and could be used as a novel tag for cancer immunotherapy. EPH-A2 receptors are attractive targets for drag design.

                         10        20        30
                 ....*....|....*....|....*....|...
gi 323276630  51 DGYHPTSVAEWLDSIELGDYTKAFLINGYTSMD 83
Cdd:cd09543    1 EGVPFRTVAEWLESIKMQQYTEHFMAAGYNSID 33

SAM domain of Ship2 lipid phosphatase proteins; SAM (sterile alpha motif) domain of Ship2 subfamily is a protein-protein interaction domain. Ship2 proteins are lipid phosphatases (Phosphatidylinositol-3,4,5-trisphosphate 5-phosphatase 2) containing an N-terminal SH2 domain, a central phosphatase domain and a C-terminal SAM domain. Ship2 is involved in a number of PI3K signaling pathways. For example, it plays a role in regulation of the actin cytoskeleton remodeling, in insulin signaling pathways, and in EphA2 receptor endocytosis. SAM domain of Ship2 can interact with SAM domain of other proteins in these pathways, thus participating in signal transduction. In particular, SAM of Ship2 is known to form heterodimers with SAM domain of Eph-A2 receptor tyrosine kinase during receptor endocytosis as well as with SAM domain of PI3K effector protein Arap3 in the actin cytoskeleton signaling network. Since Ship2 plays a role in negatively regulating insulin signaling, it has been suggested that inhibition of its expression or function may contribute in treating type 2 diabetes and obesity-induced insulin resistance.

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                 ....*....|....*....|....*....|....*....|.
gi 323276630   1 MANGFDNVQFMGSnVMEdQDLLEIGILNSGHRQRILQAIQL 41
Cdd:cd09491   25 MHNGWDSLEFLSD-ITE-EDLEEAGVTNPAHKRRLLDSLQD 63

X11-like Phosphotyrosine-binding (PTB) domain; The function of the neuronal protein X11 is unknown to date. X11 has a PTB domain followed by two PDZ domains. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

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                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 162 AFYLGSMLIKELRGTEST------QDACAKMRA---NCQKSTEqmkkvptIILSVSYKGVKFIDATNKNIIAEHEIRNIS 232
Cdd:cd01208   12 ANYLGSTQLLSERNPSKNvrmaqaQEAVSRVKApegESQPSTE-------VDLFISTERIKVLNADTQETMMDHALRTIS 84

                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 323276630 233 CAA-----------------QDPEDLSTFAYITKDLKSNHHYCHVFTAFDVNLayeIILTLGQAFEVAYQLALQA 290
Cdd:cd01208   85 YIAdignivvlmarrrmprsSSQECVETTPPSQEGKRQYKMICHVFESEDAQL---IAQSIGQAFSVAYQEFLRA 156

SAM domain of EPH-B4 subfamily of tyrosine kinase receptors; SAM (sterile alpha motif) domain of EPH-B4 subfamily of receptor tyrosine kinases is a C-terminal potential protein-protein interaction domain. This domain is located in the cytoplasmic region of EPH-B4 receptors and appears to mediate cell-cell initiated signal transduction. EPH-B4 protein kinase performs kinase-dependent and kinase-independent functions. These receptors play a role in the regular vascular system development during embryogenesis. They were found overexpressed in a variety of cancers, including carcinoma of the head and neck, ovarian cancer, bladder cancer, and downregulated in bone myeloma. Thus, EphB4 is a potential biomarker and a target for drug design.

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                 ....*....|....*....|....*....|..
gi 323276630  57 SVAEWLDSIELGDYTKAFLINGYTSMDLLKKI 88
Cdd:cd09554    5 SVGEWLRAIKMERYEDSFLQAGFTTFQLVSQI 36

SAM domain of AIDA1AB-like proteins, repeat 1; SAM (sterile alpha motif) domain repeat 1 of AIDA1AB-like proteins is a protein-protein interaction domain. AIDA1AB-like proteins have two tandem SAM domains. They may form an intramolecular head-to-tail homodimer. One of two basic motifs of the nuclear localization signal (NLS) is located within helix 5 of SAM2 (motif HKRK). This signal plays a role in decoupling of SAM2 from SAM1, thus facilitating translocation of this type proteins into the nucleus. SAM1 domain has a potential phosphorylation site for CMGC group of serine/threonine kinases. SAM domains of the AIDA1-like subfamily can directly bind ubiquitin and participate in regulating the degradation of ubiquitinated EphA receptors, particularly EPH-A8 receptor. Additionally AIDA1AB-like proteins may participate in the regulation of nucleoplasmic coilin protein interactions.

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                 ....*....|....*....|....*....|.
gi 323276630  55 PTSVAEWLDSIELGDYTKAFLINGYTSMDLL 85
Cdd:cd09499    2 VQSVGQWLESIGLPQYESKLLLNGFDDVDFL 32

SAM domain (Sterile alpha motif);

                          10        20        30
                  ....*....|....*....|....*....|....*...
gi 323276630   57 SVAEWLDSIELGDYTKAFLINGYTSMDLLKKIWEVELI 94
Cdd:pfam07647   8 SVADWLRSIGLEQYTDNFRDQGITGAELLLRLTLEDLK 45

SAM (Sterile alpha motif ), SASH1-like; SAM (sterile alpha motif) domain of SASH1-like proteins is a protein-protein interaction domain. Members of this subfamily are putative adaptor proteins. They appear to mediate signal transduction. Proteins of this subfamily are known to be involved in preventing DN thymocytes from premature initiation of programmed cell death and in B cells activation and differentiation. They have been found downregulated in some breast tumors, liver metastases and colon cancers if compare to corresponding normal tissues.

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                 ....*....|....*....|....*....|....*....|
gi 323276630  55 PTSVAEWLDSIELGDYTKAFLINGYTSMDLLKKIWEVELI 94
Cdd:cd09493    2 PKTVEELLERINLQEHTSTLLLNGYETLEDFKDLKESHLN 41

SAM domain of EPH-A8 subfamily of tyrosine kinase receptors; SAM (sterile alpha motif) domain of EPH-A8 subfamily of receptor tyrosine kinases is a C-terminal potential protein-protein interaction domain. This domain is located in the cytoplasmic region of EPH-A8 receptors and appears to mediate cell-cell initiated signal transduction. EPH-A8 receptors are involved in ligand dependent (ephirin A2, A3, A5) regulation of cell adhesion and migration, and in ligand independent regulation of neurite outgrowth in neuronal cells. They perform signaling in kinase dependent and kinase independent manner. EPH-A8 receptors are known to interact with a number of different proteins including PI 3-kinase and AIDA1-like subfamily SAM repeat domain containing proteins. However other domains (not SAM) of EPH-A8 receptors are involved in these interactions.

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                 ....*....|....*....|....*....
gi 323276630  57 SVAEWLDSIELGDYTKAFLINGYTSMDLL 85
Cdd:cd09550    4 SVDDWLDSIKMGRYKDHFAAGGYSSLGMV 32

SAM domain of EPH-B2 subfamily of tyrosine kinase receptors; SAM (sterile alpha motif) domain of EPH-B2 subfamily of receptor tyrosine kinases is a C-terminal potential protein-protein interaction domain. This domain is located in the cytoplasmic region of EPH-B2 receptors and appears to mediate cell-cell initiated signal transduction. SAM domains of this subfamily form homodimers/oligomers (in head-to-head/tail-to-tail orientation); apparently such clustering is necessary for signaling. EPH-B2 receptor is involved in regulation of synaptic function; it is needed for normal vestibular function, proper formation of anterior commissure, control of cell positioning, and ordered migration in the intestinal epithelium. EPH-B2 plays a tumor suppressor role in colorectal cancer. It was found to be downregulated in gastric cancer and thus may be a negative biomarker for it.

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                 ....*....|....*....|....*....|...
gi 323276630  56 TSVAEWLDSIELGDYTKAFLINGYTSMDLLKKI 88
Cdd:cd09552    7 STVDEWLDAIKMGQYKESFANAGFTSFDVVSQM 39

SAM domain of SASH1 proteins, repeat 1; SAM (sterile alpha motif) repeat 1 of SASH1 proteins is a predicted protein-protein interaction domain. Members of this subfamily are putative adaptor proteins. They appear to mediate signal transduction. SASH1 can bind 14-3-3 proteins in response to IGF1/phosphatidylinositol 3-kinase signaling. SASH1 was found upregulated in different tissues including thymus, placenta, lungs and downregulated in some breast tumors, liver metastases and colon cancers, relative to corresponding normal tissues. SASH1 is a potential candidate for a tumor suppressor gene in breast cancers. At the same time, downregulation of SASH1 in colon cancer is associated with metastasis and a poor prognosis.

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                 ....*....|....*....|....*....|....*....
gi 323276630  55 PTSVAEWLDSIELGDYTKAFLINGYTSMDLLKKIWEVEL 93
Cdd:cd09559    3 PKSVEDLLDRINLKEHMPTFLFNGYEDLDTFKLLEEEDL 41

JNK-interacting protein-like (JIP) Phosphotyrosine-binding (PTB) domain; JIP is a mitogen-activated protein kinase scaffold protein. JIP consists of a C-terminal SH3 domain, followed by a PTB domain. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

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                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 323276630 183 CAKMRANCQK-STEQMKKVP-TIILSVSYKGVKFIDATNKNIIA-------EHEIRNIS-CAAQdPEDLSTFAYITK--D 250
Cdd:cd01212   25 CQAMQKIATArRLTVHLRPPqSCILEISDRGLKMVDRSKPNKKDgkpcihyFYSLKNISfCGFH-PRNSRYFGFITKhpL 103

                         90
                 ....*....|.
gi 323276630 251 LKSNHhyCHVF 261
Cdd:cd01212  104 LQRFA--CHVF 112

TBC1 domain family member 1 and related proteins Phosphotyrosine-binding (PTB) domain; The TBC1D1-like members here include TBC1D1, TBC1D4 (also called Akt substrate of 160 kDa or AS160), and pollux (PLX), a calmodulin-binding protein, and are thought to have a role in regulating cell growth and differentiation. These proteins are thought to function as GTPase-activating protein for Rab family protein(s). They may play a role in the cell cycle and differentiation of various tissues. They all contain an N-terminal PTB domain, a calmodulin CBD domain, and a C-terminal TBC domain which is thought to be a GTPase activator protein of Rab-like small GTPases. Recently, TBC1D1 and TBC1D4 were recognized to potentially link the proximal signalling of insulin and/or exercise with GLUT4. TBC1D4 is thought to be involved in contraction-stimulated glucose uptake, but TBC1D4-independent mechanisms (potentially involving TBC1D1) are likely to be essential for most of the contraction's effect. PTB domains have a common PH-like fold and are found in various eukaryotic signaling molecules. This domain was initially shown to binds peptides with a NPXY motif with differing requirements for phosphorylation of the tyrosine, although more recent studies have found that some types of PTB domains can bind to peptides lack tyrosine residues altogether. In contrast to SH2 domains, which recognize phosphotyrosine and adjacent carboxy-terminal residues, PTB-domain binding specificity is conferred by residues amino-terminal to the phosphotyrosine. PTB domains are classified into three groups: phosphotyrosine-dependent Shc-like, phosphotyrosine-dependent IRS-like, and phosphotyrosine-independent Dab-like PTB domains. This cd is part of the Dab-like subgroup.

                         10        20        30        40        50        60
                 ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 323276630 220 KNIIAEHEIRNISCAAQDPEDLSTFAYITKDLKSN---HHYCHVFTAFDVNLAYEIILTLGQAF 280
Cdd:cd01269   80 KQVLLEKQFKDISSCSQGIKHVDHFGFICRESSEGggfHFVCYVFKCQSESVVDEIMLTIKQAF 143