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Conserved domains on  [gi|1207180310|ref|XP_021333219|]
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myosin-binding protein C, cardiac-type isoform X7 [Danio rerio]

Protein Classification

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
Ig super family cl11960
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 82-182 2.70e-40

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


The actual alignment was detected with superfamily member cd20962:

Pssm-ID: 472250  Cd Length: 101  Bit Score: 144.04  E-value: 2.70e-40
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   82 LFTEKPHSGEVNVGENIIFIARVCGESLLKKPTVKWFKGKWMDLASKSGKHLQLKEHYDRNTKVYTFEMHIIAAKANFAG 161
Cdd:cd20962      1 LFVMRPQDGEVTVGGSITFSARVAGASLLKPPVVKWFKGKWVDLSSKVGQHLQLHDSYDRASKVYLFELHITDAQPAFAG 80

                           90       100
                   ....*....|....*....|.
gi 1207180310  162 AYRCEVSSRDKFDSCNFDLIV 182
Cdd:cd20962     81 GYRCEVSTKDKFDCSNFNLTV 101
Ig super family cl11960
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 591-698 1.88e-33

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


The actual alignment was detected with superfamily member cd05894:

Pssm-ID: 472250  Cd Length: 86  Bit Score: 123.80  E-value: 1.88e-33
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  591 AESTILVVAGNKLRLDVPITGDPAPTVIWTKGEKdsskegeshpdpkntwtmkngeVLTDSDGRVHVESTKGHCIFTIEG 670
Cdd:cd05894      1 AENTIVVVAGNKLRLDVPISGEPAPTVTWSRGDK----------------------AFTATEGRVRVESYKDLSSFVIEG 58

                           90       100
                   ....*....|....*....|....*...
gi 1207180310  671 AERQDEGVYSVIVRNPAGEDTADINVKV 698
Cdd:cd05894     59 AEREDEGVYTITVTNPVGEDHASLFVKV 86
Ig super family cl11960
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 302-384 3.86e-29

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


The actual alignment was detected with superfamily member cd20967:

Pssm-ID: 472250  Cd Length: 82  Bit Score: 111.57  E-value: 3.86e-29
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  302 KKLDPAYQVEKGHKIKLEIEVANPDAEVKWLKNGQEIHpTGSKYIFESVGNKRFLTINNCSLSDDAAYMCVVGDEKTVTE 381
Cdd:cd20967      1 KKAQPAVQVSKGHKIRLTVELADPDAEVKWYKDGQELQ-SSSKVIFESIGAKRTLTVQQASLADAGEYQCVAGGEKCSFE 79


                   ...
gi 1207180310  382 LFV 384
Cdd:cd20967     80 LFV 82
Ig super family cl11960
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 912-992 6.18e-23

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


The actual alignment was detected with superfamily member cd05748:

Pssm-ID: 472250 [Multi-domain]  Cd Length: 82  Bit Score: 93.81  E-value: 6.18e-23
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  912 TLIKKVGETINLVIPFQGKPRPQVSWTKNDEPLDPKS-VSIRNSDTDTILFIRRSERKDSGKYDVQVQIENVEDKASVNI 990
Cdd:cd05748      1 TIVVRAGESLRLDIPIKGRPTPTVTWSKDGQPLKETGrVQIETTASSTSLVIKNAKRSDSGKYTLTLKNSAGEKSATINV 80


                   ..
gi 1207180310  991 QI 992
Cdd:cd05748     81 KV 82
I-set pfam07679
Immunoglobulin I-set domain;
1111-1200 1.35e-19

Immunoglobulin I-set domain;


:

Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 84.62  E-value: 1.35e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSG 1190
Cdd:pfam07679    1 PKFTQKPKDVEVQEGESARFTCTVTGTPDPEVSWFKDGQPLRSSDRFKVTYEGGTYTLTISNVQPDDSGKYTCVATNSAG 80

                           90
                   ....*....|
gi 1207180310 1191 EDLVECKLEV 1200
Cdd:pfam07679   81 EAEASAELTV 90
FN3 cd00063
Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein ...
 702-788 2.77e-19

Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein fibronectin. Its tenth fibronectin type III repeat contains an RGD cell recognition sequence in a flexible loop between 2 strands. Approximately 2% of all animal proteins contain the FN3 repeat; including extracellular and intracellular proteins, membrane spanning cytokine receptors, growth hormone receptors, tyrosine phosphatase receptors, and adhesion molecules. FN3-like domains are also found in bacterial glycosyl hydrolases.


:

Pssm-ID: 238020 [Multi-domain]  Cd Length: 93  Bit Score: 83.70  E-value: 2.77e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  702 PDPPEAPRILSVGEDSCVVQWDAPRFDGGqPVIGYVLERKKKKSYRWMRLNFDPYKETTFEAKKMIEGVPYEMRVYAVNA 781
Cdd:cd00063      1 PSPPTNLRVTDVTSTSVTLSWTPPEDDGG-PITGYVVEYREKGSGDWKEVEVTPGSETSYTLTGLKPGTEYEFRVRAVNG 79


                   ....*..
gi 1207180310  782 IGMSRPS 788
Cdd:cd00063     80 GGESPPS 86
FN3 cd00063
Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein ...
 996-1079 1.24e-16

Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein fibronectin. Its tenth fibronectin type III repeat contains an RGD cell recognition sequence in a flexible loop between 2 strands. Approximately 2% of all animal proteins contain the FN3 repeat; including extracellular and intracellular proteins, membrane spanning cytokine receptors, growth hormone receptors, tyrosine phosphatase receptors, and adhesion molecules. FN3-like domains are also found in bacterial glycosyl hydrolases.


:

Pssm-ID: 238020 [Multi-domain]  Cd Length: 93  Bit Score: 76.38  E-value: 1.24e-16
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  996 PGPPQNLKVMDVWGFNVALEWKPPKDNGNcDITGYNIQKADKKTMEWYTV-FEQYRRTNCVVSDLIMGNEYVFRVYAANM 1074
Cdd:cd00063      1 PSPPTNLRVTDVTSTSVTLSWTPPEDDGG-PITGYVVEYREKGSGDWKEVeVTPGSETSYTLTGLKPGTEYEFRVRAVNG 79


                   ....*
gi 1207180310 1075 VGLSP 1079
Cdd:cd00063     80 GGESP 84
FN3 cd00063
Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein ...
 801-893 5.35e-15

Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein fibronectin. Its tenth fibronectin type III repeat contains an RGD cell recognition sequence in a flexible loop between 2 strands. Approximately 2% of all animal proteins contain the FN3 repeat; including extracellular and intracellular proteins, membrane spanning cytokine receptors, growth hormone receptors, tyrosine phosphatase receptors, and adhesion molecules. FN3-like domains are also found in bacterial glycosyl hydrolases.


:

Pssm-ID: 238020 [Multi-domain]  Cd Length: 93  Bit Score: 71.76  E-value: 5.35e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  801 SEPIGLCVDDISDTTISLKWRTPERIGSaELEGYGVEYCKEGSDEWIPAFSGLTERTSVIIRDLPTGEKMQFRVRAYNMA 880
Cdd:cd00063      2 SPPTNLRVTDVTSTSVTLSWTPPEDDGG-PITGYVVEYREKGSGDWKEVEVTPGSETSYTLTGLKPGTEYEFRVRAVNGG 80

                           90
                   ....*....|...
gi 1207180310  881 GPSAPATLQQAVT 893
Cdd:cd00063     81 GESPPSESVTVTT 93
THB pfam18362
Tri-helix bundle domain; This domain can be found in the myosin-binding motif (m-domain) ...
 255-282 1.66e-11

Tri-helix bundle domain; This domain can be found in the myosin-binding motif (m-domain) region present in myosin-binding protein C (MyBP-C). MyBP-C is a sarcomeric assembly protein necessary for the regulation of sarcomere structure and function. The MyBP-C family of proteins consists mainly of modules with immunoglobulin (Ig) or fibronectin folds. This domain exhibits a three-helix bundle fold and there is a known actin-binding motif, LK(R/K)XK positioned in the third helix (alpha3), similar to that found in villin and related proteins.


:

Pssm-ID: 465725  Cd Length: 34  Bit Score: 59.67  E-value: 1.66e-11
                           10        20
                   ....*....|....*....|....*...
gi 1207180310  255 DVWDILQKAPPSEYEKIAFQYGITDLRG 282
Cdd:pfam18362    1 DVWEILSNAPPKDYEKIAFQYGITDLRG 28
Ig super family cl11960
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 488-552 1.20e-10

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


The actual alignment was detected with superfamily member pfam07679:

Pssm-ID: 472250 [Multi-domain]  Cd Length: 90  Bit Score: 59.19  E-value: 1.20e-10
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310  488 DLTVKAKDQAVFKCEVSDENVKGI-WYKNGVEVKPDARTLITHIGRIHKLTIDDVKPEDEGDYTFV 552
Cdd:pfam07679    9 DVEVQEGESARFTCTVTGTPDPEVsWFKDGQPLRSSDRFKVTYEGGTYTLTISNVQPDDSGKYTCV 74
Ig super family cl11960
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 391-475 5.79e-10

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


The actual alignment was detected with superfamily member pfam07679:

Pssm-ID: 472250 [Multi-domain]  Cd Length: 90  Bit Score: 57.27  E-value: 5.79e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  391 IVRNLEDQMAMKGDRVEFECEVSEEGA-QVKWEKDGVELTrdESFKYRFKKDGCKHVLIINDVTKEDCGHYRVK-TNGGQ 468
Cdd:pfam07679    3 FTQKPKDVEVQEGESARFTCTVTGTPDpEVSWFKDGQPLR--SSDRFKVTYEGGTYTLTISNVQPDDSGKYTCVaTNSAG 80

                           90
                   ....*....|
gi 1207180310  469 SL---AELMV 475
Cdd:pfam07679   81 EAeasAELTV 90
 
Name Accession Description Interval E-value
IgI_C1_MyBP-C_like cd20962
Immunoglobulin Domain C1 of human cardiac Myosin Binding Protein C and similar proteins; a ...
 82-182 2.70e-40

Immunoglobulin Domain C1 of human cardiac Myosin Binding Protein C and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin domain C1 of human cardiac Myosin Binding Protein C (MyBP-C). MyBP-C is a thick filament protein involved in the regulation of muscle contraction. Mutations in cardiac MyBP-C gene are the second most frequent cause of hypertrophic cardiomyopathy. MyBP-C binds to myosin with two binding sites, one at its C-terminus and another at its N-terminus. The N-terminal binding site, consisting of immunoglobulin (lg) domains C1 and C2 connected by a flexible linker, interacts with the S2 segment of myosin in a phosphorylation-regulated manner. The C1 and C2 Ig domains can bind to and activate or inhibit the thin filament. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The C1 domain of the MyBP-C is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors.


Pssm-ID: 409554  Cd Length: 101  Bit Score: 144.04  E-value: 2.70e-40
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   82 LFTEKPHSGEVNVGENIIFIARVCGESLLKKPTVKWFKGKWMDLASKSGKHLQLKEHYDRNTKVYTFEMHIIAAKANFAG 161
Cdd:cd20962      1 LFVMRPQDGEVTVGGSITFSARVAGASLLKPPVVKWFKGKWVDLSSKVGQHLQLHDSYDRASKVYLFELHITDAQPAFAG 80

                           90       100
                   ....*....|....*....|.
gi 1207180310  162 AYRCEVSSRDKFDSCNFDLIV 182
Cdd:cd20962     81 GYRCEVSTKDKFDCSNFNLTV 101
Ig_C5_MyBP-C cd05894
C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C); The members here ...
 591-698 1.88e-33

C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C); The members here are composed of the C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C). MyBP-C consists of repeated domains, Ig and fibronectin type 3, and various linkers. Three isoforms of MYBP-C exist: slow-skeletal (ssMyBP-C), fast-skeletal (fsMyBP-C), and cardiac (cMyBP-C). cMYBP-C has insertions between and inside domains and an additional cardiac-specific Ig domain at the N-terminus. For cMYBP_C an interaction has been demonstrated between this C5 domain and the Ig C8 domain.


Pssm-ID: 409475  Cd Length: 86  Bit Score: 123.80  E-value: 1.88e-33
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  591 AESTILVVAGNKLRLDVPITGDPAPTVIWTKGEKdsskegeshpdpkntwtmkngeVLTDSDGRVHVESTKGHCIFTIEG 670
Cdd:cd05894      1 AENTIVVVAGNKLRLDVPISGEPAPTVTWSRGDK----------------------AFTATEGRVRVESYKDLSSFVIEG 58

                           90       100
                   ....*....|....*....|....*...
gi 1207180310  671 AERQDEGVYSVIVRNPAGEDTADINVKV 698
Cdd:cd05894     59 AEREDEGVYTITVTNPVGEDHASLFVKV 86
IgI_C2_MyBP-C-like cd20967
Domain C2 of human cardiac Myosin Binding Protein C and similar domains; a member of the I-set ...
 302-384 3.86e-29

Domain C2 of human cardiac Myosin Binding Protein C and similar domains; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin (Ig) Domain C2 of human cardiac Myosin Binding Protein C (MyBP-C) and similar domains. MyBP-C is a thick filament protein involved in the regulation of muscle contraction. Mutations in cardiac MyBP-C gene are the second most frequent cause of hypertrophic cardiomyopathy. MyBP-C binds to myosin with two binding sites, one at its C-terminus and another at its N-terminus. The N-terminal binding site, consisting of immunoglobulin (lg) domains C1 and C2 connected by a flexible linker, interacts with the S2 segment of myosin in a phosphorylation-regulated manner. The C1 and C2 Ig domains can bind to and activate or inhibit the thin filament. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structures of the Ig domains of MyBP-C lack this strand and thus belong to the I-set of Ig superfamily domains. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors.


Pssm-ID: 409559  Cd Length: 82  Bit Score: 111.57  E-value: 3.86e-29
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  302 KKLDPAYQVEKGHKIKLEIEVANPDAEVKWLKNGQEIHpTGSKYIFESVGNKRFLTINNCSLSDDAAYMCVVGDEKTVTE 381
Cdd:cd20967      1 KKAQPAVQVSKGHKIRLTVELADPDAEVKWYKDGQELQ-SSSKVIFESIGAKRTLTVQQASLADAGEYQCVAGGEKCSFE 79


                   ...
gi 1207180310  382 LFV 384
Cdd:cd20967     80 LFV 82
Ig_Titin_like cd05748
Immunoglobulin (Ig)-like domain of titin and similar proteins; The members here are composed ...
 912-992 6.18e-23

Immunoglobulin (Ig)-like domain of titin and similar proteins; The members here are composed of the immunoglobulin (Ig)-like domain found in titin-like proteins and similar proteins. Titin (also called connectin) is a fibrous sarcomeric protein specifically found in vertebrate striated muscle. Titin is a giant protein; depending on isoform composition, it ranges from 2970 to 3700 kDa, and is of a length that spans half a sarcomere. Titin largely consists of multiple repeats of Ig-like and fibronectin type 3 (FN-III)-like domains. Titin connects the ends of myosin thick filaments to Z disks and extends along the thick filament to the H zone. It appears to function similarly to an elastic band, keeping the myosin filaments centered in the sarcomere during muscle contraction or stretching. Within the sarcomere, titin is also attached to or is associated with myosin binding protein C (MyBP-C). MyBP-C appears to contribute to the generation of passive tension by titin and like titin has repeated Ig-like and FN-III domains. Also included in this group are worm twitchin and insect projectin, thick filament proteins of invertebrate muscle which also have repeated Ig-like and FN-III domains.


Pssm-ID: 409406 [Multi-domain]  Cd Length: 82  Bit Score: 93.81  E-value: 6.18e-23
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  912 TLIKKVGETINLVIPFQGKPRPQVSWTKNDEPLDPKS-VSIRNSDTDTILFIRRSERKDSGKYDVQVQIENVEDKASVNI 990
Cdd:cd05748      1 TIVVRAGESLRLDIPIKGRPTPTVTWSKDGQPLKETGrVQIETTASSTSLVIKNAKRSDSGKYTLTLKNSAGEKSATINV 80


                   ..
gi 1207180310  991 QI 992
Cdd:cd05748     81 KV 82
I-set pfam07679
Immunoglobulin I-set domain;
1111-1200 1.35e-19

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 84.62  E-value: 1.35e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSG 1190
Cdd:pfam07679    1 PKFTQKPKDVEVQEGESARFTCTVTGTPDPEVSWFKDGQPLRSSDRFKVTYEGGTYTLTISNVQPDDSGKYTCVATNSAG 80

                           90
                   ....*....|
gi 1207180310 1191 EDLVECKLEV 1200
Cdd:pfam07679   81 EAEASAELTV 90
FN3 cd00063
Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein ...
 702-788 2.77e-19

Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein fibronectin. Its tenth fibronectin type III repeat contains an RGD cell recognition sequence in a flexible loop between 2 strands. Approximately 2% of all animal proteins contain the FN3 repeat; including extracellular and intracellular proteins, membrane spanning cytokine receptors, growth hormone receptors, tyrosine phosphatase receptors, and adhesion molecules. FN3-like domains are also found in bacterial glycosyl hydrolases.


Pssm-ID: 238020 [Multi-domain]  Cd Length: 93  Bit Score: 83.70  E-value: 2.77e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  702 PDPPEAPRILSVGEDSCVVQWDAPRFDGGqPVIGYVLERKKKKSYRWMRLNFDPYKETTFEAKKMIEGVPYEMRVYAVNA 781
Cdd:cd00063      1 PSPPTNLRVTDVTSTSVTLSWTPPEDDGG-PITGYVVEYREKGSGDWKEVEVTPGSETSYTLTGLKPGTEYEFRVRAVNG 79


                   ....*..
gi 1207180310  782 IGMSRPS 788
Cdd:cd00063     80 GGESPPS 86
IgI_titin_I1-like cd20951
Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of ...
 1111-1201 9.55e-19

Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin domain I1 of the titin I-band and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. The two sheets are linked together by a conserved disulfide bond between B strand and F strand. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The Ig I1 domain of the titin I-band is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409543 [Multi-domain]  Cd Length: 94  Bit Score: 82.08  E-value: 9.55e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEA---KYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVN 1187
Cdd:cd20951      1 PEFIIRLQSHTVWEKSDAKLRVEVQGKPDPEVKWYKNGVPIDPSSipgKYKIESEYGVHVLHIRRVTVEDSAVYSAVAKN 80

                           90
                   ....*....|....
gi 1207180310 1188 DSGEDLVECKLEVR 1201
Cdd:cd20951     81 IHGEASSSASVVVE 94
FN3 COG3401
Fibronectin type 3 domain [General function prediction only];
679-887 9.73e-17

Fibronectin type 3 domain [General function prediction only];


Pssm-ID: 442628 [Multi-domain]  Cd Length: 603  Bit Score: 85.44  E-value: 9.73e-17
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  679 YSVIVRNPAGEDTADINVKVVDVPDPPEAPRILSV---GEDSCVVQWDAPrfdGGQPVIGYVLERKKKKSYRWMRLNFdp 755
Cdd:COG3401    207 YRVAATDTGGESAPSNEVSVTTPTTPPSAPTGLTAtadTPGSVTLSWDPV---TESDATGYRVYRSNSGDGPFTKVAT-- 281

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  756 YKETTFEAKKMIEGVPYEMRVYAVNAIG-MSRPSAASQPFVPVAPTSEPIGLCVDDISDTTISLKWRTPErigSAELEGY 834
Cdd:COG3401    282 VTTTSYTDTGLTNGTTYYYRVTAVDAAGnESAPSNVVSVTTDLTPPAAPSGLTATAVGSSSITLSWTASS---DADVTGY 358

                          170       180       190       200       210
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1207180310  835 GVEYCKEGSDEWIPAFSGLTErTSVIIRDLPTGEKMQFRVRAYNMAGPSAPAT 887
Cdd:COG3401    359 NVYRSTSGGGTYTKIAETVTT-TSYTDTGLTPGTTYYYKVTAVDAAGNESAPS 410
FN3 cd00063
Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein ...
 996-1079 1.24e-16

Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein fibronectin. Its tenth fibronectin type III repeat contains an RGD cell recognition sequence in a flexible loop between 2 strands. Approximately 2% of all animal proteins contain the FN3 repeat; including extracellular and intracellular proteins, membrane spanning cytokine receptors, growth hormone receptors, tyrosine phosphatase receptors, and adhesion molecules. FN3-like domains are also found in bacterial glycosyl hydrolases.


Pssm-ID: 238020 [Multi-domain]  Cd Length: 93  Bit Score: 76.38  E-value: 1.24e-16
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  996 PGPPQNLKVMDVWGFNVALEWKPPKDNGNcDITGYNIQKADKKTMEWYTV-FEQYRRTNCVVSDLIMGNEYVFRVYAANM 1074
Cdd:cd00063      1 PSPPTNLRVTDVTSTSVTLSWTPPEDDGG-PITGYVVEYREKGSGDWKEVeVTPGSETSYTLTGLKPGTEYEFRVRAVNG 79


                   ....*
gi 1207180310 1075 VGLSP 1079
Cdd:cd00063     80 GGESP 84
FN3 smart00060
Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, ...
 996-1078 3.47e-15

Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, fibronectin. The tenth fibronectin type III repeat contains a RGD cell recognition sequence in a flexible loop between 2 strands. Type III modules are present in both extracellular and intracellular proteins.


Pssm-ID: 214495 [Multi-domain]  Cd Length: 83  Bit Score: 71.88  E-value: 3.47e-15
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   996 PGPPQNLKVMDVWGFNVALEWKPPK-DNGNCDITGYNIQKADKKTmEWYTVFEQYRRTNCVVSDLIMGNEYVFRVYAANM 1074
Cdd:smart00060    1 PSPPSNLRVTDVTSTSVTLSWEPPPdDGITGYIVGYRVEYREEGS-EWKEVNVTPSSTSYTLTGLKPGTEYEFRVRAVNG 79


                    ....
gi 1207180310  1075 VGLS 1078
Cdd:smart00060   80 AGEG 83
FN3 cd00063
Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein ...
 801-893 5.35e-15

Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein fibronectin. Its tenth fibronectin type III repeat contains an RGD cell recognition sequence in a flexible loop between 2 strands. Approximately 2% of all animal proteins contain the FN3 repeat; including extracellular and intracellular proteins, membrane spanning cytokine receptors, growth hormone receptors, tyrosine phosphatase receptors, and adhesion molecules. FN3-like domains are also found in bacterial glycosyl hydrolases.


Pssm-ID: 238020 [Multi-domain]  Cd Length: 93  Bit Score: 71.76  E-value: 5.35e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  801 SEPIGLCVDDISDTTISLKWRTPERIGSaELEGYGVEYCKEGSDEWIPAFSGLTERTSVIIRDLPTGEKMQFRVRAYNMA 880
Cdd:cd00063      2 SPPTNLRVTDVTSTSVTLSWTPPEDDGG-PITGYVVEYREKGSGDWKEVEVTPGSETSYTLTGLKPGTEYEFRVRAVNGG 80

                           90
                   ....*....|...
gi 1207180310  881 GPSAPATLQQAVT 893
Cdd:cd00063     81 GESPPSESVTVTT 93
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 1118-1200 1.52e-13

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 67.15  E-value: 1.52e-13
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  1118 KSRSVIAGYNATLSCSVRGIPKPKITWYKNKMD-ITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSGEDLVEC 1196
Cdd:smart00410    2 PSVTVKEGESVTLSCEASGSPPPEVTWYKQGGKlLAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCAATNSSGSASSGT 81


                    ....
gi 1207180310  1197 KLEV 1200
Cdd:smart00410   82 TLTV 85
I-set pfam07679
Immunoglobulin I-set domain;
597-698 2.20e-13

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 66.90  E-value: 2.20e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  597 VVAGNKLRLDVPITGDPAPTVIWTKgekdsskegeshpdpkntwtmkNGEVLTdSDGRVHVESTKGHCIFTIEGAERQDE 676
Cdd:pfam07679   12 VQEGESARFTCTVTGTPDPEVSWFK----------------------DGQPLR-SSDRFKVTYEGGTYTLTISNVQPDDS 68

                           90       100
                   ....*....|....*....|..
gi 1207180310  677 GVYSVIVRNPAGEDTADINVKV 698
Cdd:pfam07679   69 GKYTCVATNSAGEAEASAELTV 90
FN3 smart00060
Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, ...
 702-785 3.43e-13

Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, fibronectin. The tenth fibronectin type III repeat contains a RGD cell recognition sequence in a flexible loop between 2 strands. Type III modules are present in both extracellular and intracellular proteins.


Pssm-ID: 214495 [Multi-domain]  Cd Length: 83  Bit Score: 66.10  E-value: 3.43e-13
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   702 PDPPEAPRILSVGEDSCVVQWDAPRFDGGQ-PVIGYVLERKKKKSyRWMRLNFDPyKETTFEAKKMIEGVPYEMRVYAVN 780
Cdd:smart00060    1 PSPPSNLRVTDVTSTSVTLSWEPPPDDGITgYIVGYRVEYREEGS-EWKEVNVTP-SSTSYTLTGLKPGTEYEFRVRAVN 78


                    ....*
gi 1207180310   781 AIGMS 785
Cdd:smart00060   79 GAGEG 83
fn3 pfam00041
Fibronectin type III domain;
997-1080 8.15e-13

Fibronectin type III domain;


Pssm-ID: 394996 [Multi-domain]  Cd Length: 85  Bit Score: 65.13  E-value: 8.15e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  997 GPPQNLKVMDVWGFNVALEWKPPKDNGNcDITGYNIQKADKKTME---WYTVFEQyrRTNCVVSDLIMGNEYVFRVYAAN 1073
Cdd:pfam00041    1 SAPSNLTVTDVTSTSLTVSWTPPPDGNG-PITGYEVEYRPKNSGEpwnEITVPGT--TTSVTLTGLKPGTEYEVRVQAVN 77


                   ....*..
gi 1207180310 1074 MVGLSPE 1080
Cdd:pfam00041   78 GGGEGPP 84
fn3 pfam00041
Fibronectin type III domain;
703-788 1.08e-11

Fibronectin type III domain;


Pssm-ID: 394996 [Multi-domain]  Cd Length: 85  Bit Score: 62.05  E-value: 1.08e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  703 DPPEAPRILSVGEDSCVVQWDAPRFDGGqPVIGYVLERKKKKSYRWMRLNFDPYKETTFEAKKMIEGVPYEMRVYAVNAI 782
Cdd:pfam00041    1 SAPSNLTVTDVTSTSLTVSWTPPPDGNG-PITGYEVEYRPKNSGEPWNEITVPGTTTSVTLTGLKPGTEYEVRVQAVNGG 79


                   ....*.
gi 1207180310  783 GMSRPS 788
Cdd:pfam00041   80 GEGPPS 85
THB pfam18362
Tri-helix bundle domain; This domain can be found in the myosin-binding motif (m-domain) ...
 255-282 1.66e-11

Tri-helix bundle domain; This domain can be found in the myosin-binding motif (m-domain) region present in myosin-binding protein C (MyBP-C). MyBP-C is a sarcomeric assembly protein necessary for the regulation of sarcomere structure and function. The MyBP-C family of proteins consists mainly of modules with immunoglobulin (Ig) or fibronectin folds. This domain exhibits a three-helix bundle fold and there is a known actin-binding motif, LK(R/K)XK positioned in the third helix (alpha3), similar to that found in villin and related proteins.


Pssm-ID: 465725  Cd Length: 34  Bit Score: 59.67  E-value: 1.66e-11
                           10        20
                   ....*....|....*....|....*...
gi 1207180310  255 DVWDILQKAPPSEYEKIAFQYGITDLRG 282
Cdd:pfam18362    1 DVWEILSNAPPKDYEKIAFQYGITDLRG 28
I-set pfam07679
Immunoglobulin I-set domain;
916-992 2.66e-11

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 60.73  E-value: 2.66e-11
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1207180310  916 KVGETINLVIPFQGKPRPQVSWTKNDEPLDP-KSVSIRNSDTDTILFIRRSERKDSGKYDVQVQIENVEDKASVNIQI 992
Cdd:pfam07679   13 QEGESARFTCTVTGTPDPEVSWFKDGQPLRSsDRFKVTYEGGTYTLTISNVQPDDSGKYTCVATNSAGEAEASAELTV 90
I-set pfam07679
Immunoglobulin I-set domain;
488-552 1.20e-10

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 59.19  E-value: 1.20e-10
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310  488 DLTVKAKDQAVFKCEVSDENVKGI-WYKNGVEVKPDARTLITHIGRIHKLTIDDVKPEDEGDYTFV 552
Cdd:pfam07679    9 DVEVQEGESARFTCTVTGTPDPEVsWFKDGQPLRSSDRFKVTYEGGTYTLTISNVQPDDSGKYTCV 74
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 488-550 2.91e-10

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 57.90  E-value: 2.91e-10
                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1207180310   488 DLTVKAKDQAVFKCEVS-DENVKGIWYKNGVE-VKPDARTLITHIGRIHKLTIDDVKPEDEGDYT 550
Cdd:smart00410    3 SVTVKEGESVTLSCEASgSPPPEVTWYKQGGKlLAESGRFSVSRSGSTSTLTISNVTPEDSGTYT 67
fn3 pfam00041
Fibronectin type III domain;
801-885 3.81e-10

Fibronectin type III domain;


Pssm-ID: 394996 [Multi-domain]  Cd Length: 85  Bit Score: 57.42  E-value: 3.81e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  801 SEPIGLCVDDISDTTISLKWRTPERiGSAELEGYGVEYCKEGSDEWIPAFSGLTERTSVIIRDLPTGEKMQFRVRAYNMA 880
Cdd:pfam00041    1 SAPSNLTVTDVTSTSLTVSWTPPPD-GNGPITGYEVEYRPKNSGEPWNEITVPGTTTSVTLTGLKPGTEYEVRVQAVNGG 79


                   ....*
gi 1207180310  881 GPSAP 885
Cdd:pfam00041   80 GEGPP 84
I-set pfam07679
Immunoglobulin I-set domain;
391-475 5.79e-10

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 57.27  E-value: 5.79e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  391 IVRNLEDQMAMKGDRVEFECEVSEEGA-QVKWEKDGVELTrdESFKYRFKKDGCKHVLIINDVTKEDCGHYRVK-TNGGQ 468
Cdd:pfam07679    3 FTQKPKDVEVQEGESARFTCTVTGTPDpEVSWFKDGQPLR--SSDRFKVTYEGGTYTLTISNVQPDDSGKYTCVaTNSAG 80

                           90
                   ....*....|
gi 1207180310  469 SL---AELMV 475
Cdd:pfam07679   81 EAeasAELTV 90
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 911-992 9.40e-10

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 56.36  E-value: 9.40e-10
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   911 QTLIKKVGETINLVIPFQGKPRPQVSWTKND-EPLDPKS-VSIRNSDTDTILFIRRSERKDSGKYDVQVQIENVEDKASV 988
Cdd:smart00410    2 PSVTVKEGESVTLSCEASGSPPPEVTWYKQGgKLLAESGrFSVSRSGSTSTLTISNVTPEDSGTYTCAATNSSGSASSGT 81


                    ....
gi 1207180310   989 NIQI 992
Cdd:smart00410   82 TLTV 85
I-set pfam07679
Immunoglobulin I-set domain;
300-384 2.14e-09

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 55.34  E-value: 2.14e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  300 FLKKLDPAyQVEKGHKIKLEIEV-ANPDAEVKWLKNGQEIHPtGSKYIFESVGNKRFLTINNCSLSDDAAYMCVV----G 374
Cdd:pfam07679    3 FTQKPKDV-EVQEGESARFTCTVtGTPDPEVSWFKDGQPLRS-SDRFKVTYEGGTYTLTISNVQPDDSGKYTCVAtnsaG 80

                           90
                   ....*....|
gi 1207180310  375 DEKTVTELFV 384
Cdd:pfam07679   81 EAEASAELTV 90
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 593-698 2.49e-09

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 55.20  E-value: 2.49e-09
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   593 STILVVAGNKLRLDVPITGDPAPTVIWtkgekdsskegeshpdpkntwtMKNGEVLTDSDGRVHVESTKGHCIFTIEGAE 672
Cdd:smart00410    2 PSVTVKEGESVTLSCEASGSPPPEVTW----------------------YKQGGKLLAESGRFSVSRSGSTSTLTISNVT 59

                            90       100
                    ....*....|....*....|....*.
gi 1207180310   673 RQDEGVYSVIVRNPAGEDTADINVKV 698
Cdd:smart00410   60 PEDSGTYTCAATNSSGSASSGTTLTV 85
FN3 smart00060
Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, ...
 801-883 8.11e-09

Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, fibronectin. The tenth fibronectin type III repeat contains a RGD cell recognition sequence in a flexible loop between 2 strands. Type III modules are present in both extracellular and intracellular proteins.


Pssm-ID: 214495 [Multi-domain]  Cd Length: 83  Bit Score: 53.77  E-value: 8.11e-09
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   801 SEPIGLCVDDISDTTISLKWRTPER-IGSAELEGYGVEYcKEGSDEWIPAfSGLTERTSVIIRDLPTGEKMQFRVRAYNM 879
Cdd:smart00060    2 SPPSNLRVTDVTSTSVTLSWEPPPDdGITGYIVGYRVEY-REEGSEWKEV-NVTPSSTSYTLTGLKPGTEYEFRVRAVNG 79


                    ....
gi 1207180310   880 AGPS 883
Cdd:smart00060   80 AGEG 83
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 306-384 1.01e-08

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 53.28  E-value: 1.01e-08
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   306 PAYQVEKGHKIKLEIEV-ANPDAEVKWLKNGQEIHPTGSKYIFESVGNKRFLTINNCSLSDDAAYMCVV----GDEKTVT 380
Cdd:smart00410    2 PSVTVKEGESVTLSCEAsGSPPPEVTWYKQGGKLLAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCAAtnssGSASSGT 81


                    ....
gi 1207180310   381 ELFV 384
Cdd:smart00410   82 TLTV 85
IgI_C2_MyBP-C-like cd20967
Domain C2 of human cardiac Myosin Binding Protein C and similar domains; a member of the I-set ...
 400-475 1.49e-08

Domain C2 of human cardiac Myosin Binding Protein C and similar domains; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin (Ig) Domain C2 of human cardiac Myosin Binding Protein C (MyBP-C) and similar domains. MyBP-C is a thick filament protein involved in the regulation of muscle contraction. Mutations in cardiac MyBP-C gene are the second most frequent cause of hypertrophic cardiomyopathy. MyBP-C binds to myosin with two binding sites, one at its C-terminus and another at its N-terminus. The N-terminal binding site, consisting of immunoglobulin (lg) domains C1 and C2 connected by a flexible linker, interacts with the S2 segment of myosin in a phosphorylation-regulated manner. The C1 and C2 Ig domains can bind to and activate or inhibit the thin filament. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structures of the Ig domains of MyBP-C lack this strand and thus belong to the I-set of Ig superfamily domains. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors.


Pssm-ID: 409559  Cd Length: 82  Bit Score: 53.01  E-value: 1.49e-08
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310  400 AMKGDRVEFECEVSEEGAQVKWEKDGVELTrdESFKYRFKKDGCKHVLIINDVTKEDCGHYRVKTNGGQSLAELMV 475
Cdd:cd20967      9 VSKGHKIRLTVELADPDAEVKWYKDGQELQ--SSSKVIFESIGAKRTLTVQQASLADAGEYQCVAGGEKCSFELFV 82
FN3 COG3401
Fibronectin type 3 domain [General function prediction only];
679-822 2.30e-08

Fibronectin type 3 domain [General function prediction only];


Pssm-ID: 442628 [Multi-domain]  Cd Length: 603  Bit Score: 58.48  E-value: 2.30e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  679 YSVIVRNPAGEDTADIN-VKVVDVPDPPEAPRILSV---GEDSCVVQWDAPrfdGGQPVIGYVLERKKKKSYRWMRLNfD 754
Cdd:COG3401    300 YRVTAVDAAGNESAPSNvVSVTTDLTPPAAPSGLTAtavGSSSITLSWTAS---SDADVTGYNVYRSTSGGGTYTKIA-E 375

                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  755 PYKETTFEAKKMIEGVPYEMRVYAVNAIGM-SRPSAASQPFVPVAPTSEPIGLCVDD-ISDTTISLKWRT 822
Cdd:COG3401    376 TVTTTSYTDTGLTPGTTYYYKVTAVDAAGNeSAPSEEVSATTASAASGESLTASVDAvPLTDVAGATAAA 445
Ig cd00096
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 497-550 6.87e-08

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409353 [Multi-domain]  Cd Length: 70  Bit Score: 50.79  E-value: 6.87e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1207180310  497 AVFKCEVS-DENVKGIWYKNGVEVKPDARTLITHIGRIHKLTIDDVKPEDEGDYT 550
Cdd:cd00096      1 VTLTCSASgNPPPTITWYKNGKPLPPSSRDSRRSELGNGTLTISNVTLEDSGTYT 55
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 396-475 5.22e-07

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 48.66  E-value: 5.22e-07
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   396 EDQMAMKGDRVEFECEVS-EEGAQVKWEKDGVELtRDESFKYRFKKDGCKHVLIINDVTKEDCGHYR--VKTNGGQ--SL 470
Cdd:smart00410    2 PSVTVKEGESVTLSCEASgSPPPEVTWYKQGGKL-LAESGRFSVSRSGSTSTLTISNVTPEDSGTYTcaATNSSGSasSG 80


                    ....*
gi 1207180310   471 AELMV 475
Cdd:smart00410   81 TTLTV 85
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 87-182 2.06e-05

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 44.03  E-value: 2.06e-05
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310    87 PHSGEVNVGENIIFiarVCGESLLKKPTVKWFKGKwmdlasksGKHLQLKEHYDRNTKVYTFEMHIIAAKANFAGAYRCE 166
Cdd:smart00410    1 PPSVTVKEGESVTL---SCEASGSPPPEVTWYKQG--------GKLLAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCA 69

                            90
                    ....*....|....*.
gi 1207180310   167 VSSRDKFDSCNFDLIV 182
Cdd:smart00410   70 ATNSSGSASSGTTLTV 85
I-set pfam07679
Immunoglobulin I-set domain;
83-182 5.89e-05

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 43.01  E-value: 5.89e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   83 FTEKPHSGEVNVGENIIFIARVCGESllkKPTVKWFKGkwmDLASKSGKHLQLKEhydrNTKVYTFEMHiiAAKANFAGA 162
Cdd:pfam07679    3 FTQKPKDVEVQEGESARFTCTVTGTP---DPEVSWFKD---GQPLRSSDRFKVTY----EGGTYTLTIS--NVQPDDSGK 70

                           90       100
                   ....*....|....*....|
gi 1207180310  163 YRCEVSSRDKFDSCNFDLIV 182
Cdd:pfam07679   71 YTCVATNSAGEAEASAELTV 90
 
Name Accession Description Interval E-value
IgI_C1_MyBP-C_like cd20962
Immunoglobulin Domain C1 of human cardiac Myosin Binding Protein C and similar proteins; a ...
 82-182 2.70e-40

Immunoglobulin Domain C1 of human cardiac Myosin Binding Protein C and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin domain C1 of human cardiac Myosin Binding Protein C (MyBP-C). MyBP-C is a thick filament protein involved in the regulation of muscle contraction. Mutations in cardiac MyBP-C gene are the second most frequent cause of hypertrophic cardiomyopathy. MyBP-C binds to myosin with two binding sites, one at its C-terminus and another at its N-terminus. The N-terminal binding site, consisting of immunoglobulin (lg) domains C1 and C2 connected by a flexible linker, interacts with the S2 segment of myosin in a phosphorylation-regulated manner. The C1 and C2 Ig domains can bind to and activate or inhibit the thin filament. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The C1 domain of the MyBP-C is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors.


Pssm-ID: 409554  Cd Length: 101  Bit Score: 144.04  E-value: 2.70e-40
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   82 LFTEKPHSGEVNVGENIIFIARVCGESLLKKPTVKWFKGKWMDLASKSGKHLQLKEHYDRNTKVYTFEMHIIAAKANFAG 161
Cdd:cd20962      1 LFVMRPQDGEVTVGGSITFSARVAGASLLKPPVVKWFKGKWVDLSSKVGQHLQLHDSYDRASKVYLFELHITDAQPAFAG 80

                           90       100
                   ....*....|....*....|.
gi 1207180310  162 AYRCEVSSRDKFDSCNFDLIV 182
Cdd:cd20962     81 GYRCEVSTKDKFDCSNFNLTV 101
Ig_C5_MyBP-C cd05894
C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C); The members here ...
 591-698 1.88e-33

C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C); The members here are composed of the C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C). MyBP-C consists of repeated domains, Ig and fibronectin type 3, and various linkers. Three isoforms of MYBP-C exist: slow-skeletal (ssMyBP-C), fast-skeletal (fsMyBP-C), and cardiac (cMyBP-C). cMYBP-C has insertions between and inside domains and an additional cardiac-specific Ig domain at the N-terminus. For cMYBP_C an interaction has been demonstrated between this C5 domain and the Ig C8 domain.


Pssm-ID: 409475  Cd Length: 86  Bit Score: 123.80  E-value: 1.88e-33
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  591 AESTILVVAGNKLRLDVPITGDPAPTVIWTKGEKdsskegeshpdpkntwtmkngeVLTDSDGRVHVESTKGHCIFTIEG 670
Cdd:cd05894      1 AENTIVVVAGNKLRLDVPISGEPAPTVTWSRGDK----------------------AFTATEGRVRVESYKDLSSFVIEG 58

                           90       100
                   ....*....|....*....|....*...
gi 1207180310  671 AERQDEGVYSVIVRNPAGEDTADINVKV 698
Cdd:cd05894     59 AEREDEGVYTITVTNPVGEDHASLFVKV 86
IgI_C2_MyBP-C-like cd20967
Domain C2 of human cardiac Myosin Binding Protein C and similar domains; a member of the I-set ...
 302-384 3.86e-29

Domain C2 of human cardiac Myosin Binding Protein C and similar domains; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin (Ig) Domain C2 of human cardiac Myosin Binding Protein C (MyBP-C) and similar domains. MyBP-C is a thick filament protein involved in the regulation of muscle contraction. Mutations in cardiac MyBP-C gene are the second most frequent cause of hypertrophic cardiomyopathy. MyBP-C binds to myosin with two binding sites, one at its C-terminus and another at its N-terminus. The N-terminal binding site, consisting of immunoglobulin (lg) domains C1 and C2 connected by a flexible linker, interacts with the S2 segment of myosin in a phosphorylation-regulated manner. The C1 and C2 Ig domains can bind to and activate or inhibit the thin filament. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structures of the Ig domains of MyBP-C lack this strand and thus belong to the I-set of Ig superfamily domains. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors.


Pssm-ID: 409559  Cd Length: 82  Bit Score: 111.57  E-value: 3.86e-29
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  302 KKLDPAYQVEKGHKIKLEIEVANPDAEVKWLKNGQEIHpTGSKYIFESVGNKRFLTINNCSLSDDAAYMCVVGDEKTVTE 381
Cdd:cd20967      1 KKAQPAVQVSKGHKIRLTVELADPDAEVKWYKDGQELQ-SSSKVIFESIGAKRTLTVQQASLADAGEYQCVAGGEKCSFE 79


                   ...
gi 1207180310  382 LFV 384
Cdd:cd20967     80 LFV 82
Ig_Titin_like cd05748
Immunoglobulin (Ig)-like domain of titin and similar proteins; The members here are composed ...
 594-698 1.84e-25

Immunoglobulin (Ig)-like domain of titin and similar proteins; The members here are composed of the immunoglobulin (Ig)-like domain found in titin-like proteins and similar proteins. Titin (also called connectin) is a fibrous sarcomeric protein specifically found in vertebrate striated muscle. Titin is a giant protein; depending on isoform composition, it ranges from 2970 to 3700 kDa, and is of a length that spans half a sarcomere. Titin largely consists of multiple repeats of Ig-like and fibronectin type 3 (FN-III)-like domains. Titin connects the ends of myosin thick filaments to Z disks and extends along the thick filament to the H zone. It appears to function similarly to an elastic band, keeping the myosin filaments centered in the sarcomere during muscle contraction or stretching. Within the sarcomere, titin is also attached to or is associated with myosin binding protein C (MyBP-C). MyBP-C appears to contribute to the generation of passive tension by titin and like titin has repeated Ig-like and FN-III domains. Also included in this group are worm twitchin and insect projectin, thick filament proteins of invertebrate muscle which also have repeated Ig-like and FN-III domains.


Pssm-ID: 409406 [Multi-domain]  Cd Length: 82  Bit Score: 101.13  E-value: 1.84e-25
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  594 TILVVAGNKLRLDVPITGDPAPTVIWTKGEKDsskegeshpdpkntwtmkngevlTDSDGRVHVESTKGHCIFTIEGAER 673
Cdd:cd05748      1 TIVVRAGESLRLDIPIKGRPTPTVTWSKDGQP-----------------------LKETGRVQIETTASSTSLVIKNAKR 57

                           90       100
                   ....*....|....*....|....*
gi 1207180310  674 QDEGVYSVIVRNPAGEDTADINVKV 698
Cdd:cd05748     58 SDSGKYTLTLKNSAGEKSATINVKV 82
Ig_Titin_like cd05748
Immunoglobulin (Ig)-like domain of titin and similar proteins; The members here are composed ...
 912-992 6.18e-23

Immunoglobulin (Ig)-like domain of titin and similar proteins; The members here are composed of the immunoglobulin (Ig)-like domain found in titin-like proteins and similar proteins. Titin (also called connectin) is a fibrous sarcomeric protein specifically found in vertebrate striated muscle. Titin is a giant protein; depending on isoform composition, it ranges from 2970 to 3700 kDa, and is of a length that spans half a sarcomere. Titin largely consists of multiple repeats of Ig-like and fibronectin type 3 (FN-III)-like domains. Titin connects the ends of myosin thick filaments to Z disks and extends along the thick filament to the H zone. It appears to function similarly to an elastic band, keeping the myosin filaments centered in the sarcomere during muscle contraction or stretching. Within the sarcomere, titin is also attached to or is associated with myosin binding protein C (MyBP-C). MyBP-C appears to contribute to the generation of passive tension by titin and like titin has repeated Ig-like and FN-III domains. Also included in this group are worm twitchin and insect projectin, thick filament proteins of invertebrate muscle which also have repeated Ig-like and FN-III domains.


Pssm-ID: 409406 [Multi-domain]  Cd Length: 82  Bit Score: 93.81  E-value: 6.18e-23
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  912 TLIKKVGETINLVIPFQGKPRPQVSWTKNDEPLDPKS-VSIRNSDTDTILFIRRSERKDSGKYDVQVQIENVEDKASVNI 990
Cdd:cd05748      1 TIVVRAGESLRLDIPIKGRPTPTVTWSKDGQPLKETGrVQIETTASSTSLVIKNAKRSDSGKYTLTLKNSAGEKSATINV 80


                   ..
gi 1207180310  991 QI 992
Cdd:cd05748     81 KV 82
I-set pfam07679
Immunoglobulin I-set domain;
1111-1200 1.35e-19

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 84.62  E-value: 1.35e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSG 1190
Cdd:pfam07679    1 PKFTQKPKDVEVQEGESARFTCTVTGTPDPEVSWFKDGQPLRSSDRFKVTYEGGTYTLTISNVQPDDSGKYTCVATNSAG 80

                           90
                   ....*....|
gi 1207180310 1191 EDLVECKLEV 1200
Cdd:pfam07679   81 EAEASAELTV 90
FN3 cd00063
Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein ...
 702-788 2.77e-19

Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein fibronectin. Its tenth fibronectin type III repeat contains an RGD cell recognition sequence in a flexible loop between 2 strands. Approximately 2% of all animal proteins contain the FN3 repeat; including extracellular and intracellular proteins, membrane spanning cytokine receptors, growth hormone receptors, tyrosine phosphatase receptors, and adhesion molecules. FN3-like domains are also found in bacterial glycosyl hydrolases.


Pssm-ID: 238020 [Multi-domain]  Cd Length: 93  Bit Score: 83.70  E-value: 2.77e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  702 PDPPEAPRILSVGEDSCVVQWDAPRFDGGqPVIGYVLERKKKKSYRWMRLNFDPYKETTFEAKKMIEGVPYEMRVYAVNA 781
Cdd:cd00063      1 PSPPTNLRVTDVTSTSVTLSWTPPEDDGG-PITGYVVEYREKGSGDWKEVEVTPGSETSYTLTGLKPGTEYEFRVRAVNG 79


                   ....*..
gi 1207180310  782 IGMSRPS 788
Cdd:cd00063     80 GGESPPS 86
IgI_titin_I1-like cd20951
Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of ...
 1111-1201 9.55e-19

Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin domain I1 of the titin I-band and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. The two sheets are linked together by a conserved disulfide bond between B strand and F strand. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The Ig I1 domain of the titin I-band is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409543 [Multi-domain]  Cd Length: 94  Bit Score: 82.08  E-value: 9.55e-19
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEA---KYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVN 1187
Cdd:cd20951      1 PEFIIRLQSHTVWEKSDAKLRVEVQGKPDPEVKWYKNGVPIDPSSipgKYKIESEYGVHVLHIRRVTVEDSAVYSAVAKN 80

                           90
                   ....*....|....
gi 1207180310 1188 DSGEDLVECKLEVR 1201
Cdd:cd20951     81 IHGEASSSASVVVE 94
FN3 COG3401
Fibronectin type 3 domain [General function prediction only];
679-887 9.73e-17

Fibronectin type 3 domain [General function prediction only];


Pssm-ID: 442628 [Multi-domain]  Cd Length: 603  Bit Score: 85.44  E-value: 9.73e-17
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  679 YSVIVRNPAGEDTADINVKVVDVPDPPEAPRILSV---GEDSCVVQWDAPrfdGGQPVIGYVLERKKKKSYRWMRLNFdp 755
Cdd:COG3401    207 YRVAATDTGGESAPSNEVSVTTPTTPPSAPTGLTAtadTPGSVTLSWDPV---TESDATGYRVYRSNSGDGPFTKVAT-- 281

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  756 YKETTFEAKKMIEGVPYEMRVYAVNAIG-MSRPSAASQPFVPVAPTSEPIGLCVDDISDTTISLKWRTPErigSAELEGY 834
Cdd:COG3401    282 VTTTSYTDTGLTNGTTYYYRVTAVDAAGnESAPSNVVSVTTDLTPPAAPSGLTATAVGSSSITLSWTASS---DADVTGY 358

                          170       180       190       200       210
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1207180310  835 GVEYCKEGSDEWIPAFSGLTErTSVIIRDLPTGEKMQFRVRAYNMAGPSAPAT 887
Cdd:COG3401    359 NVYRSTSGGGTYTKIAETVTT-TSYTDTGLTPGTTYYYKVTAVDAAGNESAPS 410
FN3 cd00063
Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein ...
 996-1079 1.24e-16

Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein fibronectin. Its tenth fibronectin type III repeat contains an RGD cell recognition sequence in a flexible loop between 2 strands. Approximately 2% of all animal proteins contain the FN3 repeat; including extracellular and intracellular proteins, membrane spanning cytokine receptors, growth hormone receptors, tyrosine phosphatase receptors, and adhesion molecules. FN3-like domains are also found in bacterial glycosyl hydrolases.


Pssm-ID: 238020 [Multi-domain]  Cd Length: 93  Bit Score: 76.38  E-value: 1.24e-16
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  996 PGPPQNLKVMDVWGFNVALEWKPPKDNGNcDITGYNIQKADKKTMEWYTV-FEQYRRTNCVVSDLIMGNEYVFRVYAANM 1074
Cdd:cd00063      1 PSPPTNLRVTDVTSTSVTLSWTPPEDDGG-PITGYVVEYREKGSGDWKEVeVTPGSETSYTLTGLKPGTEYEFRVRAVNG 79


                   ....*
gi 1207180310 1075 VGLSP 1079
Cdd:cd00063     80 GGESP 84
Ig_3 pfam13927
Immunoglobulin domain; This family contains immunoglobulin-like domains.
 1111-1187 2.25e-16

Immunoglobulin domain; This family contains immunoglobulin-like domains.


Pssm-ID: 464046 [Multi-domain]  Cd Length: 78  Bit Score: 74.91  E-value: 2.25e-16
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVN 1187
Cdd:pfam13927    2 PVITVSPSSVTVREGETVTLTCEATGSPPPTITWYKNGEPISSGSTRSRSLSGSNSTLTISNVTRSDAGTYTCVASN 78
FN3 smart00060
Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, ...
 996-1078 3.47e-15

Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, fibronectin. The tenth fibronectin type III repeat contains a RGD cell recognition sequence in a flexible loop between 2 strands. Type III modules are present in both extracellular and intracellular proteins.


Pssm-ID: 214495 [Multi-domain]  Cd Length: 83  Bit Score: 71.88  E-value: 3.47e-15
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   996 PGPPQNLKVMDVWGFNVALEWKPPK-DNGNCDITGYNIQKADKKTmEWYTVFEQYRRTNCVVSDLIMGNEYVFRVYAANM 1074
Cdd:smart00060    1 PSPPSNLRVTDVTSTSVTLSWEPPPdDGITGYIVGYRVEYREEGS-EWKEVNVTPSSTSYTLTGLKPGTEYEFRVRAVNG 79


                    ....
gi 1207180310  1075 VGLS 1078
Cdd:smart00060   80 AGEG 83
FN3 cd00063
Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein ...
 801-893 5.35e-15

Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein fibronectin. Its tenth fibronectin type III repeat contains an RGD cell recognition sequence in a flexible loop between 2 strands. Approximately 2% of all animal proteins contain the FN3 repeat; including extracellular and intracellular proteins, membrane spanning cytokine receptors, growth hormone receptors, tyrosine phosphatase receptors, and adhesion molecules. FN3-like domains are also found in bacterial glycosyl hydrolases.


Pssm-ID: 238020 [Multi-domain]  Cd Length: 93  Bit Score: 71.76  E-value: 5.35e-15
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  801 SEPIGLCVDDISDTTISLKWRTPERIGSaELEGYGVEYCKEGSDEWIPAFSGLTERTSVIIRDLPTGEKMQFRVRAYNMA 880
Cdd:cd00063      2 SPPTNLRVTDVTSTSVTLSWTPPEDDGG-PITGYVVEYREKGSGDWKEVEVTPGSETSYTLTGLKPGTEYEFRVRAVNGG 80

                           90
                   ....*....|...
gi 1207180310  881 GPSAPATLQQAVT 893
Cdd:cd00063     81 GESPPSESVTVTT 93
Ig cd00096
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 1128-1191 7.40e-15

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409353 [Multi-domain]  Cd Length: 70  Bit Score: 70.44  E-value: 7.40e-15
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1207180310 1128 ATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSGE 1191
Cdd:cd00096      1 VTLTCSASGNPPPTITWYKNGKPLPPSSRDSRRSELGNGTLTISNVTLEDSGTYTCVASNSAGG 64
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 1118-1200 1.52e-13

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 67.15  E-value: 1.52e-13
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  1118 KSRSVIAGYNATLSCSVRGIPKPKITWYKNKMD-ITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSGEDLVEC 1196
Cdd:smart00410    2 PSVTVKEGESVTLSCEASGSPPPEVTWYKQGGKlLAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCAATNSSGSASSGT 81


                    ....
gi 1207180310  1197 KLEV 1200
Cdd:smart00410   82 TLTV 85
I-set pfam07679
Immunoglobulin I-set domain;
597-698 2.20e-13

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 66.90  E-value: 2.20e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  597 VVAGNKLRLDVPITGDPAPTVIWTKgekdsskegeshpdpkntwtmkNGEVLTdSDGRVHVESTKGHCIFTIEGAERQDE 676
Cdd:pfam07679   12 VQEGESARFTCTVTGTPDPEVSWFK----------------------DGQPLR-SSDRFKVTYEGGTYTLTISNVQPDDS 68

                           90       100
                   ....*....|....*....|..
gi 1207180310  677 GVYSVIVRNPAGEDTADINVKV 698
Cdd:pfam07679   69 GKYTCVATNSAGEAEASAELTV 90
FN3 smart00060
Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, ...
 702-785 3.43e-13

Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, fibronectin. The tenth fibronectin type III repeat contains a RGD cell recognition sequence in a flexible loop between 2 strands. Type III modules are present in both extracellular and intracellular proteins.


Pssm-ID: 214495 [Multi-domain]  Cd Length: 83  Bit Score: 66.10  E-value: 3.43e-13
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   702 PDPPEAPRILSVGEDSCVVQWDAPRFDGGQ-PVIGYVLERKKKKSyRWMRLNFDPyKETTFEAKKMIEGVPYEMRVYAVN 780
Cdd:smart00060    1 PSPPSNLRVTDVTSTSVTLSWEPPPDDGITgYIVGYRVEYREEGS-EWKEVNVTP-SSTSYTLTGLKPGTEYEFRVRAVN 78


                    ....*
gi 1207180310   781 AIGMS 785
Cdd:smart00060   79 GAGEG 83
fn3 pfam00041
Fibronectin type III domain;
997-1080 8.15e-13

Fibronectin type III domain;


Pssm-ID: 394996 [Multi-domain]  Cd Length: 85  Bit Score: 65.13  E-value: 8.15e-13
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  997 GPPQNLKVMDVWGFNVALEWKPPKDNGNcDITGYNIQKADKKTME---WYTVFEQyrRTNCVVSDLIMGNEYVFRVYAAN 1073
Cdd:pfam00041    1 SAPSNLTVTDVTSTSLTVSWTPPPDGNG-PITGYEVEYRPKNSGEpwnEITVPGT--TTSVTLTGLKPGTEYEVRVQAVN 77


                   ....*..
gi 1207180310 1074 MVGLSPE 1080
Cdd:pfam00041   78 GGGEGPP 84
IgI_titin_I1-like cd20951
Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of ...
 300-372 2.25e-12

Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin domain I1 of the titin I-band and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. The two sheets are linked together by a conserved disulfide bond between B strand and F strand. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The Ig I1 domain of the titin I-band is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409543 [Multi-domain]  Cd Length: 94  Bit Score: 63.98  E-value: 2.25e-12
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310  300 FLKKLDPaYQVEKGHKIKLEIEVA-NPDAEVKWLKNGQEI--HPTGSKYIFESVGNKRFLTINNCSLSDDAAYMCV 372
Cdd:cd20951      3 FIIRLQS-HTVWEKSDAKLRVEVQgKPDPEVKWYKNGVPIdpSSIPGKYKIESEYGVHVLHIRRVTVEDSAVYSAV 77
IgI_4_MYLK-like cd20976
Fourth Ig-like domain from smooth muscle myosin light chain kinase and similar domains ; a ...
 1110-1200 5.82e-12

Fourth Ig-like domain from smooth muscle myosin light chain kinase and similar domains ; a member of the I-set of IgSF domains; The members here are composed of the fourth immunoglobulin (Ig)-like domain from smooth muscle myosin light chain kinase (MYLK) and similar domains. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of this group shows that the fourth Ig-like domain from myosin light chain kinase lacks this strand and thus belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409568 [Multi-domain]  Cd Length: 90  Bit Score: 63.04  E-value: 5.82e-12
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1110 APKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKyRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDS 1189
Cdd:cd20976      1 APSFSSVPKDLEAVEGQDFVAQCSARGKPVPRITWIRNAQPLQYAAD-RSTCEAGVGELHIQDVLPEDHGTYTCLAKNAA 79

                           90
                   ....*....|.
gi 1207180310 1190 GEdlVECKLEV 1200
Cdd:cd20976     80 GQ--VSCSAWV 88
IgI_Myotilin_C_like cd05744
Immunoglobulin (Ig)-like domain of myotilin, palladin, and myopalladin; member of the I-set of ...
 1111-1200 7.47e-12

Immunoglobulin (Ig)-like domain of myotilin, palladin, and myopalladin; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the immunoglobulin (Ig)-like domain in myotilin, palladin, and myopalladin. Myotilin, palladin, and myopalladin function as scaffolds that regulate actin organization. Myotilin and myopalladin are most abundant in skeletal and cardiac muscle; palladin is ubiquitously expressed in the organs of developing vertebrates and plays a key role in cellular morphogenesis. The three family members each interact with specific molecular partners with all three binding to alpha-actinin; In addition, palladin also binds to vasodilator-stimulated phosphoprotein (VASP) and ezrin, myotilin binds to filamin and actin, and myopalladin also binds to nebulin and cardiac ankyrin repeat protein (CARP). This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409405 [Multi-domain]  Cd Length: 91  Bit Score: 62.51  E-value: 7.47e-12
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQ-GVLTLEIRKPCPFDGGVYMCKAVNDS 1189
Cdd:cd05744      1 PHFLQAPGDLEVQEGRLCRFDCKVSGLPTPDLFWQLNGKPVRPDSAHKMLVREnGRHSLIIEPVTKRDAGIYTCIARNRA 80

                           90
                   ....*....|.
gi 1207180310 1190 GEDLVECKLEV 1200
Cdd:cd05744     81 GENSFNAELVV 91
fn3 pfam00041
Fibronectin type III domain;
703-788 1.08e-11

Fibronectin type III domain;


Pssm-ID: 394996 [Multi-domain]  Cd Length: 85  Bit Score: 62.05  E-value: 1.08e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  703 DPPEAPRILSVGEDSCVVQWDAPRFDGGqPVIGYVLERKKKKSYRWMRLNFDPYKETTFEAKKMIEGVPYEMRVYAVNAI 782
Cdd:pfam00041    1 SAPSNLTVTDVTSTSLTVSWTPPPDGNG-PITGYEVEYRPKNSGEPWNEITVPGTTTSVTLTGLKPGTEYEVRVQAVNGG 79


                   ....*.
gi 1207180310  783 GMSRPS 788
Cdd:pfam00041   80 GEGPPS 85
IgI_2_Titin_Z1z2-like cd20972
Second Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk, and ...
 1110-1192 1.21e-11

Second Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the second immunoglobulin (Ig)-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the titin Z1z2 lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409564 [Multi-domain]  Cd Length: 91  Bit Score: 61.83  E-value: 1.21e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1110 APKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDS 1189
Cdd:cd20972      1 PPQFIQKLRSQEVAEGSKVRLECRVTGNPTPVVRWFCEGKELQNSPDIQIHQEGDLHSLIIAEAFEEDTGRYSCLATNSV 80


                   ...
gi 1207180310 1190 GED 1192
Cdd:cd20972     81 GSD 83
IgI_telokin-like cd20973
immunoglobulin-like domain of telokin and similar proteins; a member of the I-set of IgSF ...
 1114-1200 1.28e-11

immunoglobulin-like domain of telokin and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin (Ig) domain in telokin, the C-terminal domain of myosin light chain kinase which is identical to telokin, and similar proteins. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the telokin Ig domain lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409565 [Multi-domain]  Cd Length: 88  Bit Score: 61.82  E-value: 1.28e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1114 THPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRM-FSNQGVLTLEIRKPCPFDGGVYMCKAVNDSGED 1192
Cdd:cd20973      1 IQTLRDKEVVEGSAARFDCKVEGYPDPEVKWMKDDNPIVESRRFQIdQDEDGLCSLIISDVCGDDSGKYTCKAVNSLGEA 80


                   ....*...
gi 1207180310 1193 LVECKLEV 1200
Cdd:cd20973     81 TCSAELTV 88
THB pfam18362
Tri-helix bundle domain; This domain can be found in the myosin-binding motif (m-domain) ...
 255-282 1.66e-11

Tri-helix bundle domain; This domain can be found in the myosin-binding motif (m-domain) region present in myosin-binding protein C (MyBP-C). MyBP-C is a sarcomeric assembly protein necessary for the regulation of sarcomere structure and function. The MyBP-C family of proteins consists mainly of modules with immunoglobulin (Ig) or fibronectin folds. This domain exhibits a three-helix bundle fold and there is a known actin-binding motif, LK(R/K)XK positioned in the third helix (alpha3), similar to that found in villin and related proteins.


Pssm-ID: 465725  Cd Length: 34  Bit Score: 59.67  E-value: 1.66e-11
                           10        20
                   ....*....|....*....|....*...
gi 1207180310  255 DVWDILQKAPPSEYEKIAFQYGITDLRG 282
Cdd:pfam18362    1 DVWEILSNAPPKDYEKIAFQYGITDLRG 28
I-set pfam07679
Immunoglobulin I-set domain;
916-992 2.66e-11

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 60.73  E-value: 2.66e-11
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1207180310  916 KVGETINLVIPFQGKPRPQVSWTKNDEPLDP-KSVSIRNSDTDTILFIRRSERKDSGKYDVQVQIENVEDKASVNIQI 992
Cdd:pfam07679   13 QEGESARFTCTVTGTPDPEVSWFKDGQPLRSsDRFKVTYEGGTYTLTISNVQPDDSGKYTCVATNSAGEAEASAELTV 90
IgI_1_MuSK cd20970
agrin-responsive first immunoglobulin-like domains (Ig1) of the MuSK ectodomain; a member of ...
 1111-1200 5.67e-11

agrin-responsive first immunoglobulin-like domains (Ig1) of the MuSK ectodomain; a member of the I-set of IgSF domains; The members here are composed of the first immunoglobulin-like domains (Ig1) of the Muscle-specific kinase (MuSK). MuSK is a receptor tyrosine kinase specifically expressed in skeletal muscle, where it plays a central role in the formation and maintenance of the neuromuscular junction (NMJ). MuSK is activated by agrin, a neuron-derived heparan sulfate proteoglycan. The activation of MUSK in myotubes regulates the formation of NMJs through the regulation of different processes including the specific expression of genes in subsynaptic nuclei, the reorganization of the actin cytoskeleton and the clustering of the acetylcholine receptors (AChR) in the postsynaptic membrane. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the MuSK lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409562 [Multi-domain]  Cd Length: 92  Bit Score: 60.21  E-value: 5.67e-11
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIA--GYNATLSCSVRGIPKPKITWYKNK-MDITNEAKYRMFSNQGvlTLEIRKPCPFDGGVYMCKAVN 1187
Cdd:cd20970      1 PVISTPQPSFTVTAreGENATFMCRAEGSPEPEISWTRNGnLIIEFNTRYIVRENGT--TLTIRNIRRSDMGIYLCIASN 78

                           90
                   ....*....|....
gi 1207180310 1188 D-SGEDLVECKLEV 1200
Cdd:cd20970     79 GvPGSVEKRITLQV 92
I-set pfam07679
Immunoglobulin I-set domain;
488-552 1.20e-10

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 59.19  E-value: 1.20e-10
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310  488 DLTVKAKDQAVFKCEVSDENVKGI-WYKNGVEVKPDARTLITHIGRIHKLTIDDVKPEDEGDYTFV 552
Cdd:pfam07679    9 DVEVQEGESARFTCTVTGTPDPEVsWFKDGQPLRSSDRFKVTYEGGTYTLTISNVQPDDSGKYTCV 74
FN3 COG3401
Fibronectin type 3 domain [General function prediction only];
768-1153 2.86e-10

Fibronectin type 3 domain [General function prediction only];


Pssm-ID: 442628 [Multi-domain]  Cd Length: 603  Bit Score: 64.64  E-value: 2.86e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  768 EGVPYEMRVYAVNAIGMSRPSAASQPFVPVAPTSEPIGLCVDDISDTTISLKWRTPERIGsaeLEGYGVEYCKEGSDEWI 847
Cdd:COG3401    201 PGTTYYYRVAATDTGGESAPSNEVSVTTPTTPPSAPTGLTATADTPGSVTLSWDPVTESD---ATGYRVYRSNSGDGPFT 277

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  848 PAfsGLTERTSVIIRDLPTGEKMQFRVRAYNMAG-PSAPAtlqqavtireimqrpkiwlprnlrqtlikkvgetinlvip 926
Cdd:COG3401    278 KV--ATVTTTSYTDTGLTNGTTYYYRVTAVDAAGnESAPS---------------------------------------- 315

                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  927 fqgkprpqvswtkndeplDPKSVSirnsdTDTILfirrserkdsgkydvqvqienvedkasvniqivdvPGPPQNLKVMD 1006
Cdd:COG3401    316 ------------------NVVSVT-----TDLTP-----------------------------------PAAPSGLTATA 337

                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1007 VWGFNVALEWKPPKDNgncDITGYNIQKADKKTMEWYTVFEQYRRTNCVVSDLIMGNEYVFRVYAANMVGLSPEPclskd 1086
Cdd:COG3401    338 VGSSSITLSWTASSDA---DVTGYNVYRSTSGGGTYTKIAETVTTTSYTDTGLTPGTTYYYKVTAVDAAGNESAP----- 409

                          330       340       350       360       370       380
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1207180310 1087 SAYIqkTGIVYKPPSykdhdfseAPKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITN 1153
Cdd:COG3401    410 SEEV--SATTASAAS--------GESLTASVDAVPLTDVAGATAAASAASNPGVSAAVLADGGDTGN 466
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 488-550 2.91e-10

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 57.90  E-value: 2.91e-10
                            10        20        30        40        50        60
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1207180310   488 DLTVKAKDQAVFKCEVS-DENVKGIWYKNGVE-VKPDARTLITHIGRIHKLTIDDVKPEDEGDYT 550
Cdd:smart00410    3 SVTVKEGESVTLSCEASgSPPPEVTWYKQGGKlLAESGRFSVSRSGSTSTLTISNVTPEDSGTYT 67
fn3 pfam00041
Fibronectin type III domain;
801-885 3.81e-10

Fibronectin type III domain;


Pssm-ID: 394996 [Multi-domain]  Cd Length: 85  Bit Score: 57.42  E-value: 3.81e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  801 SEPIGLCVDDISDTTISLKWRTPERiGSAELEGYGVEYCKEGSDEWIPAFSGLTERTSVIIRDLPTGEKMQFRVRAYNMA 880
Cdd:pfam00041    1 SAPSNLTVTDVTSTSLTVSWTPPPD-GNGPITGYEVEYRPKNSGEPWNEITVPGTTTSVTLTGLKPGTEYEVRVQAVNGG 79


                   ....*
gi 1207180310  881 GPSAP 885
Cdd:pfam00041   80 GEGPP 84
IgI_APEG-1_like cd20975
Immunoglobulin-like domain of human Aortic Preferentially Expressed Protein-1 (APEG-1) and ...
 1111-1200 5.75e-10

Immunoglobulin-like domain of human Aortic Preferentially Expressed Protein-1 (APEG-1) and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin I-set (IgI) domain of the Human Aortic Preferentially Expressed Protein-1 (APEG-1) and similar proteins. APEG-1 is a novel specific smooth muscle differentiation marker predicted to play a role in the growth and differentiation of arterial smooth muscle cells (SMCs). The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the human APEG-1 lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409567  Cd Length: 91  Bit Score: 57.09  E-value: 5.75e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDI-TNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDS 1189
Cdd:cd20975      1 PTFKVSLMDQSVREGQDVIMSIRVQGEPKPVVSWLRNRQPVrPDQRRFAEEAEGGLCRLRILAAERGDAGFYTCKAVNEY 80

                           90
                   ....*....|.
gi 1207180310 1190 GEDLVECKLEV 1200
Cdd:cd20975     81 GARQCEARLEV 91
I-set pfam07679
Immunoglobulin I-set domain;
391-475 5.79e-10

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 57.27  E-value: 5.79e-10
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  391 IVRNLEDQMAMKGDRVEFECEVSEEGA-QVKWEKDGVELTrdESFKYRFKKDGCKHVLIINDVTKEDCGHYRVK-TNGGQ 468
Cdd:pfam07679    3 FTQKPKDVEVQEGESARFTCTVTGTPDpEVSWFKDGQPLR--SSDRFKVTYEGGTYTLTISNVQPDDSGKYTCVaTNSAG 80

                           90
                   ....*....|
gi 1207180310  469 SL---AELMV 475
Cdd:pfam07679   81 EAeasAELTV 90
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 911-992 9.40e-10

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 56.36  E-value: 9.40e-10
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   911 QTLIKKVGETINLVIPFQGKPRPQVSWTKND-EPLDPKS-VSIRNSDTDTILFIRRSERKDSGKYDVQVQIENVEDKASV 988
Cdd:smart00410    2 PSVTVKEGESVTLSCEASGSPPPEVTWYKQGgKLLAESGrFSVSRSGSTSTLTISNVTPEDSGTYTCAATNSSGSASSGT 81


                    ....
gi 1207180310   989 NIQI 992
Cdd:smart00410   82 TLTV 85
I-set pfam07679
Immunoglobulin I-set domain;
300-384 2.14e-09

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 55.34  E-value: 2.14e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  300 FLKKLDPAyQVEKGHKIKLEIEV-ANPDAEVKWLKNGQEIHPtGSKYIFESVGNKRFLTINNCSLSDDAAYMCVV----G 374
Cdd:pfam07679    3 FTQKPKDV-EVQEGESARFTCTVtGTPDPEVSWFKDGQPLRS-SDRFKVTYEGGTYTLTISNVQPDDSGKYTCVAtnsaG 80

                           90
                   ....*....|
gi 1207180310  375 DEKTVTELFV 384
Cdd:pfam07679   81 EAEASAELTV 90
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 593-698 2.49e-09

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 55.20  E-value: 2.49e-09
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   593 STILVVAGNKLRLDVPITGDPAPTVIWtkgekdsskegeshpdpkntwtMKNGEVLTDSDGRVHVESTKGHCIFTIEGAE 672
Cdd:smart00410    2 PSVTVKEGESVTLSCEASGSPPPEVTW----------------------YKQGGKLLAESGRFSVSRSGSTSTLTISNVT 59

                            90       100
                    ....*....|....*....|....*.
gi 1207180310   673 RQDEGVYSVIVRNPAGEDTADINVKV 698
Cdd:smart00410   60 PEDSGTYTCAATNSSGSASSGTTLTV 85
FN3 smart00060
Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, ...
 801-883 8.11e-09

Fibronectin type 3 domain; One of three types of internal repeat within the plasma protein, fibronectin. The tenth fibronectin type III repeat contains a RGD cell recognition sequence in a flexible loop between 2 strands. Type III modules are present in both extracellular and intracellular proteins.


Pssm-ID: 214495 [Multi-domain]  Cd Length: 83  Bit Score: 53.77  E-value: 8.11e-09
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   801 SEPIGLCVDDISDTTISLKWRTPER-IGSAELEGYGVEYcKEGSDEWIPAfSGLTERTSVIIRDLPTGEKMQFRVRAYNM 879
Cdd:smart00060    2 SPPSNLRVTDVTSTSVTLSWEPPPDdGITGYIVGYRVEY-REEGSEWKEV-NVTPSSTSYTLTGLKPGTEYEFRVRAVNG 79


                    ....
gi 1207180310   880 AGPS 883
Cdd:smart00060   80 AGEG 83
IgI_4_hemolin-like cd20978
Fourth immunoglobulin (Ig)-like domain of hemolin, and similar domains; a member of the I-set ...
 1111-1200 9.62e-09

Fourth immunoglobulin (Ig)-like domain of hemolin, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the fourth immunoglobulin (Ig)-like domain of hemolin and similar proteins. Hemolin, an insect immunoglobulin superfamily (IgSF) member containing four Ig-like domains, is a lipopolysaccharide-binding immune protein induced during bacterial infection. Hemolin shares significant sequence similarity with the first four Ig-like domains of the transmembrane cell adhesion molecules (CAMs) of the L1 family. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The fourth Ig-like domain of hemolin is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409570 [Multi-domain]  Cd Length: 88  Bit Score: 53.55  E-value: 9.62e-09
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTH-PLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQgvlTLEIRKPCPFDGGVYMCKAVNDS 1189
Cdd:cd20978      1 PKFIQkPEKNVVVKGGQDVTLPCQVTGVPQPKITWLHNGKPLQGPMERATVEDG---TLTIINVQPEDTGYYGCVATNEI 77

                           90
                   ....*....|.
gi 1207180310 1190 GEDLVECKLEV 1200
Cdd:cd20978     78 GDIYTETLLHV 88
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 306-384 1.01e-08

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 53.28  E-value: 1.01e-08
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   306 PAYQVEKGHKIKLEIEV-ANPDAEVKWLKNGQEIHPTGSKYIFESVGNKRFLTINNCSLSDDAAYMCVV----GDEKTVT 380
Cdd:smart00410    2 PSVTVKEGESVTLSCEAsGSPPPEVTWYKQGGKLLAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCAAtnssGSASSGT 81


                    ....
gi 1207180310   381 ELFV 384
Cdd:smart00410   82 TLTV 85
IgI_C2_MyBP-C-like cd20967
Domain C2 of human cardiac Myosin Binding Protein C and similar domains; a member of the I-set ...
 400-475 1.49e-08

Domain C2 of human cardiac Myosin Binding Protein C and similar domains; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin (Ig) Domain C2 of human cardiac Myosin Binding Protein C (MyBP-C) and similar domains. MyBP-C is a thick filament protein involved in the regulation of muscle contraction. Mutations in cardiac MyBP-C gene are the second most frequent cause of hypertrophic cardiomyopathy. MyBP-C binds to myosin with two binding sites, one at its C-terminus and another at its N-terminus. The N-terminal binding site, consisting of immunoglobulin (lg) domains C1 and C2 connected by a flexible linker, interacts with the S2 segment of myosin in a phosphorylation-regulated manner. The C1 and C2 Ig domains can bind to and activate or inhibit the thin filament. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structures of the Ig domains of MyBP-C lack this strand and thus belong to the I-set of Ig superfamily domains. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors.


Pssm-ID: 409559  Cd Length: 82  Bit Score: 53.01  E-value: 1.49e-08
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310  400 AMKGDRVEFECEVSEEGAQVKWEKDGVELTrdESFKYRFKKDGCKHVLIINDVTKEDCGHYRVKTNGGQSLAELMV 475
Cdd:cd20967      9 VSKGHKIRLTVELADPDAEVKWYKDGQELQ--SSSKVIFESIGAKRTLTVQQASLADAGEYQCVAGGEKCSFELFV 82
FN3 COG3401
Fibronectin type 3 domain [General function prediction only];
679-822 2.30e-08

Fibronectin type 3 domain [General function prediction only];


Pssm-ID: 442628 [Multi-domain]  Cd Length: 603  Bit Score: 58.48  E-value: 2.30e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  679 YSVIVRNPAGEDTADIN-VKVVDVPDPPEAPRILSV---GEDSCVVQWDAPrfdGGQPVIGYVLERKKKKSYRWMRLNfD 754
Cdd:COG3401    300 YRVTAVDAAGNESAPSNvVSVTTDLTPPAAPSGLTAtavGSSSITLSWTAS---SDADVTGYNVYRSTSGGGTYTKIA-E 375

                           90       100       110       120       130       140       150
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  755 PYKETTFEAKKMIEGVPYEMRVYAVNAIGM-SRPSAASQPFVPVAPTSEPIGLCVDD-ISDTTISLKWRT 822
Cdd:COG3401    376 TVTTTSYTDTGLTPGTTYYYKVTAVDAAGNeSAPSEEVSATTASAASGESLTASVDAvPLTDVAGATAAA 445
IgI_1_Titin_Z1z2-like cd20974
First Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and ...
 1111-1191 2.34e-08

First Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the first immunoglobulin (Ig)-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the titin Z1z2 lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409566 [Multi-domain]  Cd Length: 93  Bit Score: 52.74  E-value: 2.34e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNK--MDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVND 1188
Cdd:cd20974      1 PVFTQPLQSVVVLEGSTATFEAHVSGKPVPEVSWFRDGqvISTSTLPGVQISFSDGRAKLSIPAVTKANSGRYSLTATNG 80


                   ...
gi 1207180310 1189 SGE 1191
Cdd:cd20974     81 SGQ 83
IgI_titin_I1-like cd20951
Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of ...
 388-476 2.76e-08

Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin domain I1 of the titin I-band and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. The two sheets are linked together by a conserved disulfide bond between B strand and F strand. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The Ig I1 domain of the titin I-band is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409543 [Multi-domain]  Cd Length: 94  Bit Score: 52.42  E-value: 2.76e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  388 PVLIVRnLEDQMAMKGDRVEFECEVS-EEGAQVKWEKDGVELTR-DESFKYRFKKDGCKHVLIINDVTKEDCGHYRVK-T 464
Cdd:cd20951      1 PEFIIR-LQSHTVWEKSDAKLRVEVQgKPDPEVKWYKNGVPIDPsSIPGKYKIESEYGVHVLHIRRVTVEDSAVYSAVaK 79

                           90
                   ....*....|....*
gi 1207180310  465 N-GGQ--SLAELMVQ 476
Cdd:cd20951     80 NiHGEasSSASVVVE 94
Ig_3 pfam13927
Immunoglobulin domain; This family contains immunoglobulin-like domains.
 900-973 3.72e-08

Immunoglobulin domain; This family contains immunoglobulin-like domains.


Pssm-ID: 464046 [Multi-domain]  Cd Length: 78  Bit Score: 51.80  E-value: 3.72e-08
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1207180310  900 RPKIWLPRNlrqTLIKKVGETINLVIPFQGKPRPQVSWTKNDEPLDPKSVSIRNSDTDT-ILFIRRSERKDSGKY 973
Cdd:pfam13927    1 KPVITVSPS---SVTVREGETVTLTCEATGSPPPTITWYKNGEPISSGSTRSRSLSGSNsTLTISNVTRSDAGTY 72
Ig cd00096
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 497-550 6.87e-08

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409353 [Multi-domain]  Cd Length: 70  Bit Score: 50.79  E-value: 6.87e-08
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1207180310  497 AVFKCEVS-DENVKGIWYKNGVEVKPDARTLITHIGRIHKLTIDDVKPEDEGDYT 550
Cdd:cd00096      1 VTLTCSASgNPPPTITWYKNGKPLPPSSRDSRRSELGNGTLTISNVTLEDSGTYT 55
IgI_Myotilin_C cd05892
C-terminal immunoglobulin (Ig)-like domain of myotilin; member of the I-set of Ig superfamily ...
 1111-1200 7.68e-08

C-terminal immunoglobulin (Ig)-like domain of myotilin; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the C-terminal immunoglobulin (Ig)-like domain of myotilin. Mytolin belongs to the palladin-myotilin-myopalladin family. Proteins belonging to the latter family contain multiple Ig-like domains and function as scaffolds, modulating the actin cytoskeleton. Myotilin is most abundant in skeletal and cardiac muscle and is involved in maintaining sarcomere integrity. It binds to alpha-actinin, filamin, and actin. Mutations in myotilin lead to muscle disorders. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409473  Cd Length: 92  Bit Score: 51.31  E-value: 7.68e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDIT-NEAKYRMF-SNQGVLTLEIRKPCPFDGGVYMCKAVND 1188
Cdd:cd05892      1 PMFIQKPQNKKVLEGDPVRLECQISAIPPPQIFWKKNNEMLQyNTDRISLYqDNCGRICLLIQNANKKDAGWYTVSAVNE 80

                           90
                   ....*....|..
gi 1207180310 1189 SGEDLVECKLEV 1200
Cdd:cd05892     81 AGVVSCNARLDV 92
IgI_2_Follistatin_like cd05736
Second immunoglobulin (Ig)-like domain of a Follistatin-related protein 5, and similar domains; ...
 1125-1192 8.51e-08

Second immunoglobulin (Ig)-like domain of a Follistatin-related protein 5, and similar domains; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the second immunoglobulin (Ig)-like domain found in human Follistatin-related protein 5 (FSTL5) and a follistatin-like molecule encoded by the CNS-related Mahya gene. Mahya genes have been retained in certain Bilaterian branches during evolution. They are conserved in Hymenoptera and Deuterostomes, but are absent from other metazoan species such as fruit fly and nematode. Mahya proteins are secretory, with a follistatin-like domain (Kazal-type serine/threonine protease inhibitor domain and EF-hand calcium-binding domain), two Ig-like domains, and a novel C-terminal domain. Mahya may be involved in learning and memory and in processing of sensory information in Hymenoptera and vertebrates. Follistatin is a secreted, multidomain protein that binds activins with high affinity and antagonizes their signaling.


Pssm-ID: 409399 [Multi-domain]  Cd Length: 93  Bit Score: 51.11  E-value: 8.51e-08
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1125 GYNATLSCSVRGIPKPKITWYKNKMDITNE--AKYRMFSNQGvlTLEIRKPCPFDGGVYMCKAVNDSGED 1192
Cdd:cd05736     15 GVEASLRCHAEGIPLPRVQWLKNGMDINPKlsKQLTLIANGS--ELHISNVRYEDTGAYTCIAKNEGGVD 82
ig pfam00047
Immunoglobulin domain; Members of the immunoglobulin superfamily are found in hundreds of ...
 1122-1192 1.84e-07

Immunoglobulin domain; Members of the immunoglobulin superfamily are found in hundreds of proteins of different functions. Examples include antibodies, the giant muscle kinase titin and receptor tyrosine kinases. Immunoglobulin-like domains may be involved in protein-protein and protein-ligand interactions.


Pssm-ID: 395002  Cd Length: 86  Bit Score: 49.89  E-value: 1.84e-07
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1207180310 1122 VIAGYNATLSCSVR-GIPKPKITWYKNKMDITNEAKY-RMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSGED 1192
Cdd:pfam00047    8 VLEGDSATLTCSAStGSPGPDVTWSKEGGTLIESLKVkHDNGRTTQSSLLISNVTKEDAGTYTCVVNNPGGSA 80
Ig_C5_MyBP-C cd05894
C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C); The members here ...
 912-992 2.84e-07

C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C); The members here are composed of the C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C). MyBP-C consists of repeated domains, Ig and fibronectin type 3, and various linkers. Three isoforms of MYBP-C exist: slow-skeletal (ssMyBP-C), fast-skeletal (fsMyBP-C), and cardiac (cMyBP-C). cMYBP-C has insertions between and inside domains and an additional cardiac-specific Ig domain at the N-terminus. For cMYBP_C an interaction has been demonstrated between this C5 domain and the Ig C8 domain.


Pssm-ID: 409475  Cd Length: 86  Bit Score: 49.45  E-value: 2.84e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  912 TLIKKVGETINLVIPFQGKPRPQVSWTKNDEPLDPKS--VSIRNSDTDTILFIRRSERKDSGKYDVQVQIENVEDKASVN 989
Cdd:cd05894      4 TIVVVAGNKLRLDVPISGEPAPTVTWSRGDKAFTATEgrVRVESYKDLSSFVIEGAEREDEGVYTITVTNPVGEDHASLF 83


                   ...
gi 1207180310  990 IQI 992
Cdd:cd05894     84 VKV 86
IgI_Titin_like cd05747
Immunoglobulin (Ig)-like domain of human titin C terminus and similar proteins; member of the ...
 615-692 3.63e-07

Immunoglobulin (Ig)-like domain of human titin C terminus and similar proteins; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the fifth immunoglobulin (Ig)-like domain from the C-terminus of human titin x and similar proteins. Titin (also called connectin) is a fibrous sarcomeric protein specifically found in vertebrate striated muscle. Titin is gigantic; depending on isoform composition it ranges from 2970 to 3700 kDa, and is of a length that spans half a sarcomere. Titin largely consists of multiple repeats of Ig-like and fibronectin type 3 (FN-III)-like domains. Titin connects the ends of myosin thick filaments to Z disks and extends along the thick filament to the H zone and appears to function similar to an elastic band, keeping the myosin filaments centered in the sarcomere during muscle contraction or stretching. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 143224 [Multi-domain]  Cd Length: 92  Bit Score: 49.28  E-value: 3.63e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  615 PTVIWTKGEKDSSKEGES---------HPDPKNTWtMKNGEVLTDSdGRVHVESTKGHCIFTIEGAERQDEGVYSVIVRN 685
Cdd:cd05747      3 PATILTKPRSLTVSEGESarfscdvdgEPAPTVTW-MREGQIIVSS-QRHQITSTEYKSTFEISKVQMSDEGNYTVVVEN 80


                   ....*..
gi 1207180310  686 PAGEDTA 692
Cdd:cd05747     81 SEGKQEA 87
IgI_Myotilin_C_like cd05744
Immunoglobulin (Ig)-like domain of myotilin, palladin, and myopalladin; member of the I-set of ...
 390-462 4.49e-07

Immunoglobulin (Ig)-like domain of myotilin, palladin, and myopalladin; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the immunoglobulin (Ig)-like domain in myotilin, palladin, and myopalladin. Myotilin, palladin, and myopalladin function as scaffolds that regulate actin organization. Myotilin and myopalladin are most abundant in skeletal and cardiac muscle; palladin is ubiquitously expressed in the organs of developing vertebrates and plays a key role in cellular morphogenesis. The three family members each interact with specific molecular partners with all three binding to alpha-actinin; In addition, palladin also binds to vasodilator-stimulated phosphoprotein (VASP) and ezrin, myotilin binds to filamin and actin, and myopalladin also binds to nebulin and cardiac ankyrin repeat protein (CARP). This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409405 [Multi-domain]  Cd Length: 91  Bit Score: 49.03  E-value: 4.49e-07
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1207180310  390 LIVRNLEDQMAMKGDRVEFECEVS-EEGAQVKWEKDGvELTRDESFKYRFKKDGCKHVLIINDVTKEDCGHYRV 462
Cdd:cd05744      2 HFLQAPGDLEVQEGRLCRFDCKVSgLPTPDLFWQLNG-KPVRPDSAHKMLVRENGRHSLIIEPVTKRDAGIYTC 74
IgI_2_FGFRL1-like cd05856
Second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor_like-1 ...
 1111-1200 5.03e-07

Second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor_like-1(FGFRL1); member of the I-set of IgSF domains; The members here are composed of the second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor like-1(FGFRL1). FGFRL1 is comprised of a signal peptide, three extracellular Ig-like modules, a transmembrane segment, and a short intracellular domain. FGFRL1 is expressed preferentially in skeletal tissues. Similar to FGF receptors, the expressed protein interacts specifically with heparin and with FGF2. FGFRL1 does not have a protein tyrosine kinase domain at its C-terminus; neither does its cytoplasmic domain appear to interact with a signaling partner. It has been suggested that FGFRL1 may not have any direct signaling function, but instead acts as a decoy receptor trapping FGFs and preventing them from binding other receptors.


Pssm-ID: 409442  Cd Length: 92  Bit Score: 48.70  E-value: 5.03e-07
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRS-VIA---GYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCpfDGGVYMCKAV 1186
Cdd:cd05856      1 PRFTQPAKMRRrVIArpvGSSVRLKCVASGNPRPDITWLKDNKPLTPPEIGENKKKKWTLSLKNLKPE--DSGKYTCHVS 78

                           90
                   ....*....|....
gi 1207180310 1187 NDSGEDLVECKLEV 1200
Cdd:cd05856     79 NRAGEINATYKVDV 92
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 396-475 5.22e-07

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 48.66  E-value: 5.22e-07
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   396 EDQMAMKGDRVEFECEVS-EEGAQVKWEKDGVELtRDESFKYRFKKDGCKHVLIINDVTKEDCGHYR--VKTNGGQ--SL 470
Cdd:smart00410    2 PSVTVKEGESVTLSCEASgSPPPEVTWYKQGGKL-LAESGRFSVSRSGSTSTLTISNVTPEDSGTYTcaATNSSGSasSG 80


                    ....*
gi 1207180310   471 AELMV 475
Cdd:smart00410   81 TTLTV 85
IgC_1_Robo cd07693
First immunoglobulin (Ig)-like constant domain in Robo (roundabout) receptors, and similar ...
 1111-1191 1.25e-06

First immunoglobulin (Ig)-like constant domain in Robo (roundabout) receptors, and similar domains; The members here are composed of the first immunoglobulin (Ig)-like domain in Roundabout (Robo) receptors. Robo receptors play a role in the development of the central nervous system (CNS), and are receptors of Slit protein. Slit is a repellant secreted by the neural cells in the midline. Slit acts through Robo to prevent most neurons from crossing the midline from either side. Three mammalian Robo homologs (Robo1, Robo2, and Robo3), and three mammalian Slit homologs (Slit1, Slit2, Slit3), have been identified. Commissural axons, which cross the midline, express low levels of Robo; longitudinal axons, which avoid the midline, express high levels of Robo. Robo1, Robo2, and Robo3 are expressed by commissural neurons in the vertebrate spinal cord and Slit1, Slit2,and Slit3 are expressed at the ventral midline. Robo3 is a divergent member of the Robo family which instead of being a positive regulator of Slit responsiveness, antagonizes Slit responsiveness in precrossing axons. The Slit-Robo interaction is mediated by the second leucine-rich repeat (LRR) domain of Slit and the two N-terminal Ig domains of Robo, Ig1 and Ig2. The primary Robo binding site for Slit2 has been shown by surface plasmon resonance experiments and mutational analysis to be is the Ig1 domain, while the Ig2 domain has been proposed to harbor a weak secondary binding site.


Pssm-ID: 409490 [Multi-domain]  Cd Length: 99  Bit Score: 47.93  E-value: 1.25e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKN----KMDITNEAKYRMFSNQGVL-TLEI---RKPCPfDGGVYM 1182
Cdd:cd07693      1 PRIVEHPSDLIVSKGDPATLNCKAEGRPTPTIQWLKNgqplETDKDDPRSHRIVLPSGSLfFLRVvhgRKGRS-DEGVYV 79


                   ....*....
gi 1207180310 1183 CKAVNDSGE 1191
Cdd:cd07693     80 CVAHNSLGE 88
Ig_Perlecan_like cd05743
Immunoglobulin (Ig)-like domain of the human basement membrane heparan sulfate proteoglycan ...
 1125-1190 1.83e-06

Immunoglobulin (Ig)-like domain of the human basement membrane heparan sulfate proteoglycan perlecan and similar proteins; The members here are composed of the immunoglobulin (Ig)-like domain of the human basement membrane heparan sulfate proteoglycan perlecan, also known as HSPG2, and similar proteins. Perlecan consists of five domains: domain I has three putative heparan sulfate attachment sites, domain II has four LDL receptor-like repeats, and one Ig-like repeat, domain III resembles the short arm of laminin chains, domain IV has multiple Ig-like repeats (21 repeats in human perlecan), and domain V resembles the globular G domain of the laminin A chain and internal repeats of EGF. Perlecan may participate in a variety of biological functions including cell binding, LDL-metabolism, basement membrane assembly and selective permeability, calcium binding, and growth- and neurite-promoting activities.


Pssm-ID: 143220  Cd Length: 78  Bit Score: 46.71  E-value: 1.83e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310 1125 GYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSG 1190
Cdd:cd05743      1 GETVEFTCVATGVPTPIINWRLNWGHVPDSARVSITSEGGYGTLTIRDVKESDQGAYTCEAINTRG 66
IgI_3_Robo cd05725
Third immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of ...
 487-554 1.96e-06

Third immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the third immunoglobulin (Ig)-like domain in Robo (roundabout) receptors. Robo receptors play a role in the development of the central nervous system (CNS), and are receptors of Slit protein. Slit is a repellant secreted by the neural cells in the midline. Slit acts through Robo to prevent most neurons from crossing the midline from either side. Three mammalian Robo homologs (Robo1, Robo2, Robo3), and three mammalian Slit homologs (Slit-1,Slit-2, Slit-3), have been identified. Commissural axons, which cross the midline, express low levels of Robo; longitudinal axons, which avoid the midline, express high levels of Robo. Robo1, Robo2, and Robo3 are expressed by commissural neurons in the vertebrate spinal cord and Slit-1, Slit-2, and Slit-3 are expressed at the ventral midline. Robo-3 is a divergent member of the Robo family which instead of being a positive regulator of Slit responsiveness, antagonizes Slit responsiveness in precrossing axons. The Slit-Robo interaction is mediated by the second leucine-rich repeat (LRR) domain of Slit and the two N-terminal Ig domains of Robo, Ig1 and Ig2. The primary Robo binding site for Slit2 has been shown by surface plasmon resonance experiments and mutational analysis to be the Ig1 domain, while the Ig2 domain has been proposed to harbor a weak secondary binding site. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409390 [Multi-domain]  Cd Length: 83  Bit Score: 47.00  E-value: 1.96e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1207180310  487 ADLTVKAKDQAVFKCEVSDENVKGI-WYKNGVEVkPDARTlitHIGRIHKLTIDDVKPEDEGDYTFVPE 554
Cdd:cd05725      5 QNQVVLVDDSAEFQCEVGGDPVPTVrWRKEDGEL-PKGRY---EILDDHSLKIRKVTAGDMGSYTCVAE 69
IgI_2_Follistatin_like cd05736
Second immunoglobulin (Ig)-like domain of a Follistatin-related protein 5, and similar domains; ...
 325-386 2.37e-06

Second immunoglobulin (Ig)-like domain of a Follistatin-related protein 5, and similar domains; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the second immunoglobulin (Ig)-like domain found in human Follistatin-related protein 5 (FSTL5) and a follistatin-like molecule encoded by the CNS-related Mahya gene. Mahya genes have been retained in certain Bilaterian branches during evolution. They are conserved in Hymenoptera and Deuterostomes, but are absent from other metazoan species such as fruit fly and nematode. Mahya proteins are secretory, with a follistatin-like domain (Kazal-type serine/threonine protease inhibitor domain and EF-hand calcium-binding domain), two Ig-like domains, and a novel C-terminal domain. Mahya may be involved in learning and memory and in processing of sensory information in Hymenoptera and vertebrates. Follistatin is a secreted, multidomain protein that binds activins with high affinity and antagonizes their signaling.


Pssm-ID: 409399 [Multi-domain]  Cd Length: 93  Bit Score: 46.87  E-value: 2.37e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310  325 PDAEVKWLKNGQEIHPTGSKYiFESVGNKRFLTINNCSLSDDAAYMCVVGDEKTVTE----LFVKE 386
Cdd:cd05736     28 PLPRVQWLKNGMDINPKLSKQ-LTLIANGSELHISNVRYEDTGAYTCIAKNEGGVDEdissLFVED 92
Ig4_Peroxidasin cd05746
Fourth immunoglobulin (Ig)-like domain of peroxidasin; The members here are composed of the ...
 1130-1190 2.70e-06

Fourth immunoglobulin (Ig)-like domain of peroxidasin; The members here are composed of the fourth immunoglobulin (Ig)-like domain in peroxidasin. Peroxidasin has a peroxidase domain and interacting extracellular motifs containing four Ig-like domains. It has been suggested that peroxidasin is secreted, and has functions related to the stabilization of the extracellular matrix. It may play a part in various other important processes such as removal and destruction of cells which have undergone programmed cell death and protection of the organism against non-self.


Pssm-ID: 143223  Cd Length: 69  Bit Score: 46.02  E-value: 2.70e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1207180310 1130 LSCSVRGIPKPKITWYKNKMDITNEAKYRMfSNQGVLTleIRKPCPFDGGVYMCKAVNDSG 1190
Cdd:cd05746      3 IPCSAQGDPEPTITWNKDGVQVTESGKFHI-SPEGYLA--IRDVGVADQGRYECVARNTIG 60
Ig cd00096
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 406-461 3.42e-06

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409353 [Multi-domain]  Cd Length: 70  Bit Score: 45.78  E-value: 3.42e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1207180310  406 VEFECEVS-EEGAQVKWEKDGVELTRDESFKYRFKKDGCkhVLIINDVTKEDCGHYR 461
Cdd:cd00096      1 VTLTCSASgNPPPTITWYKNGKPLPPSSRDSRRSELGNG--TLTISNVTLEDSGTYT 55
Ig cd00096
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 926-973 3.49e-06

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409353 [Multi-domain]  Cd Length: 70  Bit Score: 45.78  E-value: 3.49e-06
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*....
gi 1207180310  926 PFQGKPRPQVSWTKNDEPLDP-KSVSIRNSDTDTILFIRRSERKDSGKY 973
Cdd:cd00096      6 SASGNPPPTITWYKNGKPLPPsSRDSRRSELGNGTLTISNVTLEDSGTY 54
IgI_Twitchin_like cd20949
C-terminal immunoglobulin-like domain of the myosin-associated giant protein kinase Twitchin, ...
 1112-1195 3.89e-06

C-terminal immunoglobulin-like domain of the myosin-associated giant protein kinase Twitchin, and similar domains; member of the I-set IgSF domains; The members here are composed of the C-terminal immunoglobulin-like domain of the myosin-associated giant protein kinase Twitchin and similar proteins, including Caenorhabditis elegans and Aplysia californica Twitchin, Drosophila melanogaster Projectin, and similar proteins. These are very large muscle proteins containing multiple immunoglobulin (Ig)-like and fibronectin type III (FN3) domains and a single kinase domain near the C-terminus. In humans these proteins are called Titin. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The Ig-like domain of the Twitchin is a member of the I-set IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins (titin, telokin, and twitchin), the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D.


Pssm-ID: 409541 [Multi-domain]  Cd Length: 89  Bit Score: 46.17  E-value: 3.89e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1112 KFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKA--VNDS 1189
Cdd:cd20949      1 TFTENAYVTTVKEGQSATILCEVKGEPQPNVTWHFNGQPISASVADMSKYRILADGLLINKVTQDDTGEYTCRAyqVNSI 80


                   ....*.
gi 1207180310 1190 GEDLVE 1195
Cdd:cd20949     81 ASDMQE 86
IgI_Titin_M1-like cd20927
Immunoglobulin-like M1 domain from Titin; a member of the I-set of IgSF domains; The members ...
 1141-1192 4.37e-06

Immunoglobulin-like M1 domain from Titin; a member of the I-set of IgSF domains; The members here are composed of the Immunoglobulin-like M1 I-set domain from Titin and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the titin-M1 domain lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409521  Cd Length: 90  Bit Score: 46.18  E-value: 4.37e-06
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|..
gi 1207180310 1141 KITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSGED 1192
Cdd:cd20927     31 QVTWYFGVRQLENSEKYEITYEDGVAILYVKDITKFDDGTYRCKVVNDYGED 82
Ig4_L1-NrCAM_like cd04978
Fourth immunoglobulin (Ig)-like domain of L1, Ng-CAM (Neuron-glia CAM cell adhesion molecule), ...
 1125-1201 4.37e-06

Fourth immunoglobulin (Ig)-like domain of L1, Ng-CAM (Neuron-glia CAM cell adhesion molecule), and NrCAM (Ng-CAM-related); The members here are composed of the fourth immunoglobulin (Ig)-like domain of L1, Ng-CAM (Neuron-glia CAM cell adhesion molecule), and NrCAM (Ng-CAM-related). These proteins belong to the L1 subfamily of cell adhesion molecules (CAMs) and are comprised of an extracellular region having six Ig-like domains and five fibronectin type III domains, a transmembrane region and an intracellular domain. These molecules are primarily expressed in the nervous system. L1 is associated with an X-linked recessive disorder, X-linked hydrocephalus, MASA syndrome, or spastic paraplegia type 1, that involves abnormalities of axonal growth.


Pssm-ID: 409367 [Multi-domain]  Cd Length: 89  Bit Score: 46.29  E-value: 4.37e-06
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1207180310 1125 GYNATLSCSVRGIPKPKITWYKNKMDITNEA-KYRMFSNQGVLTLEIRKpcPFDGGVYMCKAVNDSGEDLVECKLEVR 1201
Cdd:cd04978     14 GETGELICEAEGNPQPTITWRLNGVPIEPAPeDMRRTVDGRTLIFSNLQ--PNDTAVYQCNASNVHGYLLANAFLHVL 89
IgI_Myomesin_like_C cd05737
C-terminal immunoglobulin (Ig)-like domain of myomesin and M-protein; member of the I-set of ...
 597-698 5.05e-06

C-terminal immunoglobulin (Ig)-like domain of myomesin and M-protein; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the C-terminal immunoglobulin (Ig)-like domain of myomesin and M-protein (also known as myomesin-2). Myomesin and M-protein are both structural proteins localized to the M-band, a transverse structure in the center of the sarcomere, and are candidates for M-band bridges. Both proteins are modular, consisting mainly of repetitive Ig-like and fibronectin type III (FnIII) domains. Myomesin is expressed in all types of vertebrate striated muscle; M-protein has a muscle-type specific expression pattern. Myomesin is present in both slow and fast fibers; M-protein is present only in fast fibers. It has been suggested that myomesin acts as a molecular spring with alternative splicing as a means of modifying its elasticity.


Pssm-ID: 319300  Cd Length: 92  Bit Score: 46.04  E-value: 5.05e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  597 VVAGNKLRLDVPITGDPAPTVIWTKGEKDSSkegeshpdpkntwtmkngevLTDSdGRVHVESTKgHCIFTIEGAERQDE 676
Cdd:cd05737     13 IMEGKTLNLTCNVWGDPPPEVSWLKNDQALA--------------------FLDH-CNLKVEAGR-TVYFTINGVSSEDS 70

                           90       100
                   ....*....|....*....|..
gi 1207180310  677 GVYSVIVRNPAGEDTADINVKV 698
Cdd:cd05737     71 GKYGLVVKNKYGSETSDVTVSV 92
IgI_Lingo-1 cd20969
Immunoglobulin I-set domain of the Leucine-rich repeat and immunoglobin-like domain-containing ...
 1124-1200 5.09e-06

Immunoglobulin I-set domain of the Leucine-rich repeat and immunoglobin-like domain-containing protein 1 (Lingo-1); The members here are composed of the immunoglobulin I-set (IgI) domain of the Leucine-rich repeat and immunoglobin-like domain-containing protein 1 (Lingo-1). Human Lingo-1 is a central nervous system-specific transmembrane glycoprotein also known as LERN-1, which functions as a negative regulator of neuronal survival, axonal regeneration, and oligodendrocyte differentiation and myelination. Lingo-1 is a key component of the Nogo receptor signaling complex (RTN4R/NGFR) in RhoA activation responsible for some inhibition of axonal regeneration by myelin-associated factors. The ligand-binding ectodomain of human Lingo-1 contains a bimodular, kinked structure composed of leucine-rich repeat (LRR) and immunoglobulin (Ig)-like modules. Diseases associated with Lingo-1 include mental retardation, autosomal recessive 64 and essential tremor. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the Lingo-1 lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409561  Cd Length: 92  Bit Score: 46.23  E-value: 5.09e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1124 AGYNATLSCSVRGIPKPKITWY---KNKMDITNEAKYRMFSNQgvlTLEIRKPCPFDGGVYMCKAVNDSGEDLVECKLEV 1200
Cdd:cd20969     16 EGHTVQFVCRADGDPPPAILWLsprKHLVSAKSNGRLTVFPDG---TLEVRYAQVQDNGTYLCIAANAGGNDSMPAHLHV 92
Ig_Titin_like cd05748
Immunoglobulin (Ig)-like domain of titin and similar proteins; The members here are composed ...
 1122-1200 5.21e-06

Immunoglobulin (Ig)-like domain of titin and similar proteins; The members here are composed of the immunoglobulin (Ig)-like domain found in titin-like proteins and similar proteins. Titin (also called connectin) is a fibrous sarcomeric protein specifically found in vertebrate striated muscle. Titin is a giant protein; depending on isoform composition, it ranges from 2970 to 3700 kDa, and is of a length that spans half a sarcomere. Titin largely consists of multiple repeats of Ig-like and fibronectin type 3 (FN-III)-like domains. Titin connects the ends of myosin thick filaments to Z disks and extends along the thick filament to the H zone. It appears to function similarly to an elastic band, keeping the myosin filaments centered in the sarcomere during muscle contraction or stretching. Within the sarcomere, titin is also attached to or is associated with myosin binding protein C (MyBP-C). MyBP-C appears to contribute to the generation of passive tension by titin and like titin has repeated Ig-like and FN-III domains. Also included in this group are worm twitchin and insect projectin, thick filament proteins of invertebrate muscle which also have repeated Ig-like and FN-III domains.


Pssm-ID: 409406 [Multi-domain]  Cd Length: 82  Bit Score: 45.66  E-value: 5.21e-06
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1207180310 1122 VIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSGEDLVECKLEV 1200
Cdd:cd05748      4 VRAGESLRLDIPIKGRPTPTVTWSKDGQPLKETGRVQIETTASSTSLVIKNAKRSDSGKYTLTLKNSAGEKSATINVKV 82
Ig_3 pfam13927
Immunoglobulin domain; This family contains immunoglobulin-like domains.
 310-373 5.42e-06

Immunoglobulin domain; This family contains immunoglobulin-like domains.


Pssm-ID: 464046 [Multi-domain]  Cd Length: 78  Bit Score: 45.63  E-value: 5.42e-06
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1207180310  310 VEKGHKIKLEIEV-ANPDAEVKWLKNGQEIHPtGSKYIFESVGNKRFLTINNCSLSDDAAYMCVV 373
Cdd:pfam13927   13 VREGETVTLTCEAtGSPPPTITWYKNGEPISS-GSTRSRSLSGSNSTLTISNVTRSDAGTYTCVA 76
IgI_5_Dscam cd20958
Fifth immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar domains; ...
 1111-1191 5.92e-06

Fifth immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the fifth immunoglobulin domain of the Drosophila melanogaster Down syndrome cell adhesion molecule (DSCAM) protein and similar proteins. Down syndrome cell adhesion molecule (DSCAM) is a cell adhesion molecule that plays critical roles in neural development, including axon guidance and branching, axon target recognition, self-avoidance and synaptic formation. DSCAM belongs to the immunoglobulin superfamily and contributes to defects in the central nervous system in Down syndrome patients. Vertebrate DSCAMs differ from Drosophila Dscam1 in that they lack the extensive alternative splicing that occurs in the insect gene. Drosophila melanogaster Dscam has 38,016 isoforms generated by the alternative splicing of four variable exon clusters, which allows every neuron in the fly to display a distinctive set of Dscam proteins on its cell surface. Drosophila Dscam1 is a cell-surface protein that plays important roles in neural development and axon tiling of neurons. It is shown that thousands of isoforms bind themselves through specific homophilic (self-binding) interactions, a process which mediates cellular self-recognition. Drosophila Dscam2 is also alternatively spliced and plays a key role in the development of two visual system neurons, monopolar cells L1 and L2. This group is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand.


Pssm-ID: 409550 [Multi-domain]  Cd Length: 89  Bit Score: 45.64  E-value: 5.92e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNqGVLTLE-IRKpcPFDGGVYMCKAVNDS 1189
Cdd:cd20958      1 PPFIRPMGNLTAVAGQTLRLHCPVAGYPISSITWEKDGRRLPLNHRQRVFPN-GTLVIEnVQR--SSDEGEYTCTARNQQ 77


                   ..
gi 1207180310 1190 GE 1191
Cdd:cd20958     78 GQ 79
IgI_7_Dscam cd20954
Seventh immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar ...
 1111-1193 6.32e-06

Seventh immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the seventh immunoglobulin domain of the Drosophila melanogaster Down syndrome cell adhesion molecule (DSCAM) protein and similar proteins. Down syndrome cell adhesion molecule (DSCAM) is a cell adhesion molecule that plays critical roles in neural development, including axon guidance and branching, axon target recognition, self-avoidance and synaptic formation. DSCAM belongs to the immunoglobulin superfamily and contributes to defects in the central nervous system in Down syndrome patients. Vertebrate DSCAMs differ from Drosophila Dscam1 in that they lack the extensive alternative splicing that occurs in the insect gene. Drosophila melanogaster Dscam has 38,016 isoforms generated by the alternative splicing of four variable exon clusters, which allows every neuron in the fly to display a distinctive set of Dscam proteins on its cell surface. Drosophila Dscam1 is a cell-surface protein that plays important roles in neural development and axon tiling of neurons. It is shown that thousands of isoforms bind themselves through specific homophilic (self-binding) interactions, a process which mediates cellular self-recognition. Drosophila Dscam2 is also alternatively spliced and plays a key role in the development of two visual system neurons, monopolar cells L1 and L2. This group is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand.


Pssm-ID: 409546 [Multi-domain]  Cd Length: 96  Bit Score: 45.77  E-value: 6.32e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEakYRMF-SNQGVL-----TLEIRKPCPFDGGVYMCK 1184
Cdd:cd20954      2 PRWIVEPVDANVAAGQDVMLHCQADGFPTPTVTWKKATGSTPGE--YKDLlYDPNVRilpngTLVFGHVQKENEGHYLCE 79


                   ....*....
gi 1207180310 1185 AVNDSGEDL 1193
Cdd:cd20954     80 AKNGIGSGL 88
IgI_4_hemolin-like cd20978
Fourth immunoglobulin (Ig)-like domain of hemolin, and similar domains; a member of the I-set ...
 300-372 6.89e-06

Fourth immunoglobulin (Ig)-like domain of hemolin, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the fourth immunoglobulin (Ig)-like domain of hemolin and similar proteins. Hemolin, an insect immunoglobulin superfamily (IgSF) member containing four Ig-like domains, is a lipopolysaccharide-binding immune protein induced during bacterial infection. Hemolin shares significant sequence similarity with the first four Ig-like domains of the transmembrane cell adhesion molecules (CAMs) of the L1 family. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The fourth Ig-like domain of hemolin is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409570 [Multi-domain]  Cd Length: 88  Bit Score: 45.46  E-value: 6.89e-06
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1207180310  300 FLKKLDPAYQVEKGHKIKLEIEVA-NPDAEVKWLKNGQEIHPTGSKYIFESVGnkrfLTINNCSLSDDAAYMCV 372
Cdd:cd20978      3 FIQKPEKNVVVKGGQDVTLPCQVTgVPQPKITWLHNGKPLQGPMERATVEDGT----LTIINVQPEDTGYYGCV 72
Ig_3 pfam13927
Immunoglobulin domain; This family contains immunoglobulin-like domains.
 579-685 7.71e-06

Immunoglobulin domain; This family contains immunoglobulin-like domains.


Pssm-ID: 464046 [Multi-domain]  Cd Length: 78  Bit Score: 45.25  E-value: 7.71e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  579 PPKIhldcmgRTAESTILVVAGNKLRLDVPITGDPAPTVIWTKgekdsskegeshpdpkntwtmkNGEVLTDSDGRVHVE 658
Cdd:pfam13927    1 KPVI------TVSPSSVTVREGETVTLTCEATGSPPPTITWYK----------------------NGEPISSGSTRSRSL 52

                           90       100
                   ....*....|....*....|....*..
gi 1207180310  659 STkGHCIFTIEGAERQDEGVYSVIVRN 685
Cdd:pfam13927   53 SG-SNSTLTISNVTRSDAGTYTCVASN 78
IgI_1_Titin_Z1z2-like cd20974
First Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and ...
 593-697 7.76e-06

First Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the first immunoglobulin (Ig)-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the titin Z1z2 lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409566 [Multi-domain]  Cd Length: 93  Bit Score: 45.42  E-value: 7.76e-06
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  593 STILVVAGNKLRLDVPITGDPAPTVIWTKgekdsskegeshpdpkntwtmkNGEVL-TDSDGRVHVESTKGHCIFTIEGA 671
Cdd:cd20974      8 QSVVVLEGSTATFEAHVSGKPVPEVSWFR----------------------DGQVIsTSTLPGVQISFSDGRAKLSIPAV 65

                           90       100
                   ....*....|....*....|....*...
gi 1207180310  672 ERQDEGVYSVIVRNPAGE--DTADINVK 697
Cdd:cd20974     66 TKANSGRYSLTATNGSGQatSTAELLVL 93
IgI_Myomesin_like_C cd05737
C-terminal immunoglobulin (Ig)-like domain of myomesin and M-protein; member of the I-set of ...
 918-992 8.06e-06

C-terminal immunoglobulin (Ig)-like domain of myomesin and M-protein; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the C-terminal immunoglobulin (Ig)-like domain of myomesin and M-protein (also known as myomesin-2). Myomesin and M-protein are both structural proteins localized to the M-band, a transverse structure in the center of the sarcomere, and are candidates for M-band bridges. Both proteins are modular, consisting mainly of repetitive Ig-like and fibronectin type III (FnIII) domains. Myomesin is expressed in all types of vertebrate striated muscle; M-protein has a muscle-type specific expression pattern. Myomesin is present in both slow and fast fibers; M-protein is present only in fast fibers. It has been suggested that myomesin acts as a molecular spring with alternative splicing as a means of modifying its elasticity.


Pssm-ID: 319300  Cd Length: 92  Bit Score: 45.27  E-value: 8.06e-06
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1207180310  918 GETINLVIPFQGKPRPQVSWTKNDEPL---DPKSVSIRNSDTDTILfIRRSERKDSGKYDVQVQIENVEDKASVNIQI 992
Cdd:cd05737     16 GKTLNLTCNVWGDPPPEVSWLKNDQALaflDHCNLKVEAGRTVYFT-INGVSSEDSGKYGLVVKNKYGSETSDVTVSV 92
IgI_2_Robo cd05724
Second immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of ...
 1122-1191 8.77e-06

Second immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the second immunoglobulin (Ig)-like domain in Robo (roundabout) receptors. Robo receptors play a role in the development of the central nervous system (CNS), and are receptors of the Slit protein. Slit is a repellant secreted by the neural cells in the midline. Slit acts through Robo to prevent most neurons from crossing the midline from either side. Three mammalian Robo homologs (Robo1, Robo2, and Robo3), and three mammalian Slit homologs (Slit-1,Slit-2, Slit-3), have been identified. Commissural axons, which cross the midline, express low levels of Robo; longitudinal axons, which avoid the midline, express high levels of Robo. Robo1, Robo2, and Robo3 are expressed by commissural neurons in the vertebrate spinal cord and Slit-1, Slit-2, Slit-3 are expressed at the ventral midline. Robo-3 is a divergent member of the Robo family which instead of being a positive regulator of Slit responsiveness, antagonizes Slit responsiveness in precrossing axons. The Slit-Robo interaction is mediated by the second leucine-rich repeat (LRR) domain of Slit and the two N-terminal Ig domains of Robo, Ig1 and Ig2. The primary Robo binding site for Slit-2 has been shown by surface plasmon resonance experiments and mutational analysis to be the Ig1 domain, while the Ig2 domain has been proposed to harbor a weak secondary binding site. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409389 [Multi-domain]  Cd Length: 87  Bit Score: 45.08  E-value: 8.77e-06
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1207180310 1122 VIAGYNATLSCSV-RGIPKPKITWYKN--KMDITNEaKYRMFSNQGVLTLEIRKPcpfDGGVYMCKAVNDSGE 1191
Cdd:cd05724      9 VAVGEMAVLECSPpRGHPEPTVSWRKDgqPLNLDNE-RVRIVDDGNLLIAEARKS---DEGTYKCVATNMVGE 77
IgI_3_NCAM-1 cd05730
Third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule 1 (NCAM-1); member of ...
 1125-1200 9.09e-06

Third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule 1 (NCAM-1); member of the I-set of IgSF domains; The members here are composed of the third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule (NCAM-1). NCAM plays important roles in the development and regeneration of the central nervous system, in synaptogenesis and neural migration. NCAM mediates cell-cell and cell-substratum recognition and adhesion via homophilic (NCAM-NCAM), and heterophilic (NCAM-non-NCAM), interactions. NCAM is expressed as three major isoforms having different intracellular extensions. The extracellular portion of NCAM has five N-terminal Ig-like domains and two fibronectin type III domains. The double zipper adhesion complex model for NCAM homophilic binding involves Ig1, Ig2, and Ig3. By this model, Ig1 and Ig2 mediate dimerization of NCAM molecules situated on the same cell surface (cis interactions), and Ig3 domains mediate interactions between NCAM molecules expressed on the surface of opposing cells (trans interactions) through binding to the Ig1 and Ig2 domains. The adhesive ability of NCAM is modulated by the addition of polysialic acid chains to the fifth Ig-like domain.


Pssm-ID: 143207 [Multi-domain]  Cd Length: 95  Bit Score: 45.31  E-value: 9.09e-06
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310 1125 GYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVlTLEIRKPCPFDGGVYMCKAVNDSGEDLVECKLEV 1200
Cdd:cd05730     18 GQSVTLACDADGFPEPTMTWTKDGEPIESGEEKYSFNEDGS-EMTILDVDKLDEAEYTCIAENKAGEQEAEIHLKV 92
IgI_2_JAM1 cd20950
Second Ig-like domain of Junctional adhesion molecule-1 (JAM1); a member of the I-set of IgSF ...
 1121-1190 1.24e-05

Second Ig-like domain of Junctional adhesion molecule-1 (JAM1); a member of the I-set of IgSF domains; The members here are composed of the second Ig-like domain of Junctional adhesion molecule-1 (JAM1). JAM1 is an immunoglobulin superfamily (IgSF) protein with two Ig-like domains in its extracellular region; it plays a role in the formation of endothelial and epithelial tight junction and acts as a receptor for mammalian reovirus sigma-1. The IgSF is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. The two sheets are linked together by a conserved disulfide bond between B strand and F strand. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The second Ig-like domain of JAM1 is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, the A strand of the I-set is discontinuous but lacks a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors.


Pssm-ID: 409542  Cd Length: 97  Bit Score: 45.00  E-value: 1.24e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1121 SVIAGYNATLSCSVR-GIPKPKITWYKNKMDI-TNEAKYRMFSNQ--------GVLTLEirKPCPFDGGVYMCKAVNDSG 1190
Cdd:cd20950      8 SATIGNRAVLTCSEPdGSPPSEYTWFKDGVVMpTNPKSTRAFSNSsysldpttGELVFD--PLSASDTGEYSCEARNGYG 85
Ig cd00096
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 324-373 1.32e-05

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409353 [Multi-domain]  Cd Length: 70  Bit Score: 44.24  E-value: 1.32e-05
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|
gi 1207180310  324 NPDAEVKWLKNGQEIhPTGSKYIFESVGNKRFLTINNCSLSDDAAYMCVV 373
Cdd:cd00096     10 NPPPTITWYKNGKPL-PPSSRDSRRSELGNGTLTISNVTLEDSGTYTCVA 58
IgI_4_Dscam cd20956
Fourth immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar domains; ...
 1110-1191 1.36e-05

Fourth immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the fourth immunoglobulin domain of the Drosophila melanogaster Down syndrome cell adhesion molecule (DSCAM) protein and similar proteins. Down syndrome cell adhesion molecule (DSCAM) is a cell adhesion molecule that plays critical roles in neural development, including axon guidance and branching, axon target recognition, self-avoidance and synaptic formation. DSCAM belongs to the immunoglobulin superfamily and contributes to defects in the central nervous system in Down syndrome patients. Vertebrate DSCAMs differ from Drosophila Dscam1 in that they lack the extensive alternative splicing that occurs in the insect gene. Drosophila melanogaster Dscam has 38,016 isoforms generated by the alternative splicing of four variable exon clusters, which allows every neuron in the fly to display a distinctive set of Dscam proteins on its cell surface. Drosophila Dscam1 is a cell-surface protein that plays important roles in neural development and axon tiling of neurons. It is shown that thousands of isoforms bind themselves through specific homophilic (self-binding) interactions, a process which mediates cellular self-recognition. Drosophila Dscam2 is also alternatively spliced and plays a key role in the development of two visual system neurons, monopolar cells L1 and L2. This group is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand.


Pssm-ID: 409548 [Multi-domain]  Cd Length: 96  Bit Score: 44.86  E-value: 1.36e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1110 APKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRM---FSNQGVLT--LEIRKPCPFDGGVYMCK 1184
Cdd:cd20956      1 APVLLETFSEQTLQPGPSVSLKCVASGNPLPQITWTLDGFPIPESPRFRVgdyVTSDGDVVsyVNISSVRVEDGGEYTCT 80


                   ....*..
gi 1207180310 1185 AVNDSGE 1191
Cdd:cd20956     81 ATNDVGS 87
IgI_titin_I1-like cd20951
Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of ...
 918-993 1.37e-05

Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin domain I1 of the titin I-band and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. The two sheets are linked together by a conserved disulfide bond between B strand and F strand. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The Ig I1 domain of the titin I-band is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409543 [Multi-domain]  Cd Length: 94  Bit Score: 44.72  E-value: 1.37e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  918 GETINLVIPFQGKPRPQVSWTKNDEPLDPKSVS----IRNSDTDTILFIRRSERKDSGKYdvQVQIENVEDKASVNIQIV 993
Cdd:cd20951     15 KSDAKLRVEVQGKPDPEVKWYKNGVPIDPSSIPgkykIESEYGVHVLHIRRVTVEDSAVY--SAVAKNIHGEASSSASVV 92
Ig_3 pfam13927
Immunoglobulin domain; This family contains immunoglobulin-like domains.
 387-461 1.70e-05

Immunoglobulin domain; This family contains immunoglobulin-like domains.


Pssm-ID: 464046 [Multi-domain]  Cd Length: 78  Bit Score: 44.09  E-value: 1.70e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310  387 PPVlIVRNLEDQMAMKGDRVEFECEVSEEG-AQVKWEKDGVELTRDESFKYRFKKDGCkhVLIINDVTKEDCGHYR 461
Cdd:pfam13927    1 KPV-ITVSPSSVTVREGETVTLTCEATGSPpPTITWYKNGEPISSGSTRSRSLSGSNS--TLTISNVTRSDAGTYT 73
IgI_Titin_like cd05747
Immunoglobulin (Ig)-like domain of human titin C terminus and similar proteins; member of the ...
 1113-1191 1.80e-05

Immunoglobulin (Ig)-like domain of human titin C terminus and similar proteins; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the fifth immunoglobulin (Ig)-like domain from the C-terminus of human titin x and similar proteins. Titin (also called connectin) is a fibrous sarcomeric protein specifically found in vertebrate striated muscle. Titin is gigantic; depending on isoform composition it ranges from 2970 to 3700 kDa, and is of a length that spans half a sarcomere. Titin largely consists of multiple repeats of Ig-like and fibronectin type 3 (FN-III)-like domains. Titin connects the ends of myosin thick filaments to Z disks and extends along the thick filament to the H zone and appears to function similar to an elastic band, keeping the myosin filaments centered in the sarcomere during muscle contraction or stretching. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 143224 [Multi-domain]  Cd Length: 92  Bit Score: 44.65  E-value: 1.80e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1207180310 1113 FTHPlKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSGE 1191
Cdd:cd05747      7 LTKP-RSLTVSEGESARFSCDVDGEPAPTVTWMREGQIIVSSQRHQITSTEYKSTFEISKVQMSDEGNYTVVVENSEGK 84
IgI_2_FGFR_like cd05729
Second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor, and similar ...
 1111-1191 1.86e-05

Second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor, and similar domains; member of the I-set of IgSF domains; The members here are composed of the second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor. FGF receptors bind FGF signaling polypeptides. FGFs participate in multiple processes such as morphogenesis, development, and angiogenesis. FGFs bind to four FGF receptor tyrosine kinases (FGFR1, FGFR2, FGFR3, FGFR4). Receptor diversity is controlled by alternative splicing producing splice variants with different ligand binding characteristics and different expression patterns. FGFRs have an extracellular region comprised of three Ig-like domains, a single transmembrane helix, and an intracellular tyrosine kinase domain. Ligand binding and specificity reside in the Ig-like domains 2 and 3, and the linker region that connects these two. FGFR activation and signaling depend on FGF-induced dimerization, a process involving cell surface heparin or heparin sulfate proteoglycans. This group also contains fibroblast growth factor (FGF) receptor like-1(FGFRL1). FGFRL1 does not have a protein tyrosine kinase domain at its C-terminus; neither does its cytoplasmic domain appear to interact with a signaling partner. It has been suggested that FGFRL1 may not have any direct signaling function, but instead acts as a decoy receptor trapping FGFs and preventing them from binding other receptors.


Pssm-ID: 409393 [Multi-domain]  Cd Length: 95  Bit Score: 44.52  E-value: 1.86e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSR----SVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGV-LTLEIRKPCPFDGGVYMCKA 1185
Cdd:cd05729      1 PRFTDTEKMEerehALPAANKVRLECGAGGNPMPNITWLKDGKEFKKEHRIGGTKVEEKgWSLIIERAIPRDKGKYTCIV 80


                   ....*.
gi 1207180310 1186 VNDSGE 1191
Cdd:cd05729     81 ENEYGS 86
IG_like smart00410
Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.
 87-182 2.06e-05

Immunoglobulin like; IG domains that cannot be classified into one of IGv1, IGc1, IGc2, IG.


Pssm-ID: 214653 [Multi-domain]  Cd Length: 85  Bit Score: 44.03  E-value: 2.06e-05
                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310    87 PHSGEVNVGENIIFiarVCGESLLKKPTVKWFKGKwmdlasksGKHLQLKEHYDRNTKVYTFEMHIIAAKANFAGAYRCE 166
Cdd:smart00410    1 PPSVTVKEGESVTL---SCEASGSPPPEVTWYKQG--------GKLLAESGRFSVSRSGSTSTLTISNVTPEDSGTYTCA 69

                            90
                    ....*....|....*.
gi 1207180310   167 VSSRDKFDSCNFDLIV 182
Cdd:smart00410   70 ATNSSGSASSGTTLTV 85
IgI_1_Neogenin_like cd05722
First immunoglobulin (Ig)-like domain in neogenin, and similar domains; member of the I-set of ...
 1125-1189 2.28e-05

First immunoglobulin (Ig)-like domain in neogenin, and similar domains; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the first immunoglobulin (Ig)-like domain in neogenin and related proteins. Neogenin is a cell surface protein which is expressed in the developing nervous system of vertebrate embryos in the growing nerve cells. It is also expressed in other embryonic tissues and may play a general role in developmental processes such as cell migration, cell-cell recognition, and tissue growth regulation. Included in this group is the tumor suppressor protein DCC which is deleted in colorectal carcinoma. DCC and neogenin each have four Ig-like domains followed by six fibronectin type III domains, a transmembrane domain, and an intracellular domain. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409387  Cd Length: 97  Bit Score: 44.39  E-value: 2.28e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1207180310 1125 GYNATLSCSVRGIPKPKITWYKNKMDIT--NEAKYRMFSNQGVLTLEI--RKPCPFDGGVYMCKAVNDS 1189
Cdd:cd05722     16 GGPVVLNCSAESDPPPKIEWKKDGVLLNlvSDERRQQLPNGSLLITSVvhSKHNKPDEGFYQCVAQNES 84
Ig4_L1-CAM_like cd05867
Fourth immunoglobulin (Ig)-like domain of the L1 cell adhesion molecule (CAM); The members ...
 1125-1200 2.54e-05

Fourth immunoglobulin (Ig)-like domain of the L1 cell adhesion molecule (CAM); The members here are composed of the fourth immunoglobulin (Ig)-like domain of the L1 cell adhesion molecule (CAM). L1 is comprised of an extracellular region having six Ig-like domains and five fibronectin type III domains, a transmembrane region, and an intracellular domain. L1 is primarily expressed in the nervous system and is involved in its development and function. L1 is associated with an X-linked recessive disorder, X-linked hydrocephalus, MASA syndrome, and spastic paraplegia type 1, that involves abnormalities of axonal growth. This group also contains the chicken neuron-glia cell adhesion molecule, Ng-CAM.


Pssm-ID: 409453 [Multi-domain]  Cd Length: 89  Bit Score: 44.12  E-value: 2.54e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1207180310 1125 GYNATLSCSVRGIPKPKITWYKNKMDITN---EAKYRMFSNQGVLTlEIRkpcPFDGGVYMCKAVNDSGEDLVECKLEV 1200
Cdd:cd05867     14 GETARLDCQVEGIPTPNITWSINGAPIEGtdpDPRRHVSSGALILT-DVQ---PSDTAVYQCEARNRHGNLLANAHVHV 88
IgI_M-protein_C cd05891
C-terminal immunoglobulin (Ig)-like domain of M-protein; member of the I-set of Ig superfamily ...
 918-978 2.58e-05

C-terminal immunoglobulin (Ig)-like domain of M-protein; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the C-terminal immunoglobulin (Ig)-like domain of M-protein (also known as myomesin-2). M-protein is a structural protein localized to the M-band, a transverse structure in the center of the sarcomere, and is a candidate for M-band bridges. M-protein is modular consisting mainly of repetitive IG-like and fibronectin type III (FnIII) domains and has a muscle-type specific expression pattern. M-protein is present in fast fibers.


Pssm-ID: 143299  Cd Length: 92  Bit Score: 44.13  E-value: 2.58e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1207180310  918 GETINLVIPFQGKPRPQVSWTKNDEPLDPK---SVSIRNSDTDTiLFIRRSERKDSGKYDVQVQ 978
Cdd:cd05891     16 GKTLNLTCTVFGNPDPEVIWFKNDQDIELSehySVKLEQGKYAS-LTIKGVTSEDSGKYSINVK 78
IgI_1_Titin_Z1z2-like cd20974
First Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and ...
 911-976 2.68e-05

First Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the first immunoglobulin (Ig)-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the titin Z1z2 lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409566 [Multi-domain]  Cd Length: 93  Bit Score: 43.88  E-value: 2.68e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1207180310  911 QTLIKKVGETINLVIPFQGKPRPQVSWTKNDEPLDPKS---VSIRNSDTDTILFIRRSERKDSGKYDVQ 976
Cdd:cd20974      8 QSVVVLEGSTATFEAHVSGKPVPEVSWFRDGQVISTSTlpgVQISFSDGRAKLSIPAVTKANSGRYSLT 76
IgI_2_Palladin_C cd20990
Second C-terminal immunoglobulin (Ig)-like domain of palladin; member of the I-set of Ig ...
 1111-1200 2.87e-05

Second C-terminal immunoglobulin (Ig)-like domain of palladin; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the C-terminal immunoglobulin (Ig)-like domain of palladin. Palladin belongs to the palladin-myotilin-myopalladin family. Proteins belonging to this family contain multiple Ig-like domains and function as scaffolds, modulating actin cytoskeleton. Palladin binds to alpha-actinin ezrin, vasodilator-stimulated phosphoprotein VASP, SPIN90 (also known as DIP or mDia interacting protein), and Src. Palladin also binds F-actin directly, via its Ig3 domain. Palladin is expressed as several alternatively spliced isoforms, having various combinations of Ig-like domains, in a cell-type-specific manner. It has been suggested that palladin's different Ig-like domains may be specialized for distinct functions. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409582  Cd Length: 91  Bit Score: 43.94  E-value: 2.87e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQ-GVLTLEIRKPCPFDGGVYMCKAVNDS 1189
Cdd:cd20990      1 PHFLQAPGDLTVQEGKLCRMDCKVSGLPTPDLSWQLDGKPIRPDSAHKMLVREnGVHSLIIEPVTSRDAGIYTCIATNRA 80

                           90
                   ....*....|.
gi 1207180310 1190 GEDLVECKLEV 1200
Cdd:cd20990     81 GQNSFNLELVV 91
IgI_3_NCAM-1 cd05730
Third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule 1 (NCAM-1); member of ...
 634-698 3.23e-05

Third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule 1 (NCAM-1); member of the I-set of IgSF domains; The members here are composed of the third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule (NCAM-1). NCAM plays important roles in the development and regeneration of the central nervous system, in synaptogenesis and neural migration. NCAM mediates cell-cell and cell-substratum recognition and adhesion via homophilic (NCAM-NCAM), and heterophilic (NCAM-non-NCAM), interactions. NCAM is expressed as three major isoforms having different intracellular extensions. The extracellular portion of NCAM has five N-terminal Ig-like domains and two fibronectin type III domains. The double zipper adhesion complex model for NCAM homophilic binding involves Ig1, Ig2, and Ig3. By this model, Ig1 and Ig2 mediate dimerization of NCAM molecules situated on the same cell surface (cis interactions), and Ig3 domains mediate interactions between NCAM molecules expressed on the surface of opposing cells (trans interactions) through binding to the Ig1 and Ig2 domains. The adhesive ability of NCAM is modulated by the addition of polysialic acid chains to the fifth Ig-like domain.


Pssm-ID: 143207 [Multi-domain]  Cd Length: 95  Bit Score: 43.77  E-value: 3.23e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1207180310  634 PDPKNTWTmKNGEVLTDSDGRVHVESTKGHciFTIEGAERQDEGVYSVIVRNPAGEDTADINVKV 698
Cdd:cd05730     31 PEPTMTWT-KDGEPIESGEEKYSFNEDGSE--MTILDVDKLDEAEYTCIAENKAGEQEAEIHLKV 92
Ig4_L1-NrCAM_like cd04978
Fourth immunoglobulin (Ig)-like domain of L1, Ng-CAM (Neuron-glia CAM cell adhesion molecule), ...
 911-973 3.72e-05

Fourth immunoglobulin (Ig)-like domain of L1, Ng-CAM (Neuron-glia CAM cell adhesion molecule), and NrCAM (Ng-CAM-related); The members here are composed of the fourth immunoglobulin (Ig)-like domain of L1, Ng-CAM (Neuron-glia CAM cell adhesion molecule), and NrCAM (Ng-CAM-related). These proteins belong to the L1 subfamily of cell adhesion molecules (CAMs) and are comprised of an extracellular region having six Ig-like domains and five fibronectin type III domains, a transmembrane region and an intracellular domain. These molecules are primarily expressed in the nervous system. L1 is associated with an X-linked recessive disorder, X-linked hydrocephalus, MASA syndrome, or spastic paraplegia type 1, that involves abnormalities of axonal growth.


Pssm-ID: 409367 [Multi-domain]  Cd Length: 89  Bit Score: 43.59  E-value: 3.72e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1207180310  911 QTLIKKVGETINLVIPFQGKPRPQVSWTKNDEPLDPKSVSIRNSDTDTILFIRRSERKDSGKY 973
Cdd:cd04978      7 PSLVLSPGETGELICEAEGNPQPTITWRLNGVPIEPAPEDMRRTVDGRTLIFSNLQPNDTAVY 69
IgI_2_FGFRL1-like cd05856
Second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor_like-1 ...
 901-977 3.73e-05

Second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor_like-1(FGFRL1); member of the I-set of IgSF domains; The members here are composed of the second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor like-1(FGFRL1). FGFRL1 is comprised of a signal peptide, three extracellular Ig-like modules, a transmembrane segment, and a short intracellular domain. FGFRL1 is expressed preferentially in skeletal tissues. Similar to FGF receptors, the expressed protein interacts specifically with heparin and with FGF2. FGFRL1 does not have a protein tyrosine kinase domain at its C-terminus; neither does its cytoplasmic domain appear to interact with a signaling partner. It has been suggested that FGFRL1 may not have any direct signaling function, but instead acts as a decoy receptor trapping FGFs and preventing them from binding other receptors.


Pssm-ID: 409442  Cd Length: 92  Bit Score: 43.70  E-value: 3.73e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1207180310  901 PKIWLPRNLRQTLIKK-VGETINLVIPFQGKPRPQVSWTKNDEPLDPKSVSiRNSDTDTILFIRRSERKDSGKYDVQV 977
Cdd:cd05856      1 PRFTQPAKMRRRVIARpVGSSVRLKCVASGNPRPDITWLKDNKPLTPPEIG-ENKKKKWTLSLKNLKPEDSGKYTCHV 77
IgC2_3_Dscam cd20957
Third immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar domains; ...
 480-549 4.29e-05

Third immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar domains; a member of the Constant 2 (C2)-set of IgSF domains; The members here are composed of the third immunoglobulin domain of the Drosophila melanogaster Down syndrome cell adhesion molecule (DSCAM) protein and similar proteins. Down syndrome cell adhesion molecule (DSCAM) is a cell adhesion molecule that plays critical roles in neural development, including axon guidance and branching, axon target recognition, self-avoidance and synaptic formation. DSCAM belongs to the immunoglobulin superfamily and contributes to defects in the central nervous system in Down syndrome patients. Vertebrate DSCAMs differ from Drosophila Dscam1 in that they lack the extensive alternative splicing that occurs in the insect gene. Drosophila melanogaster Dscam has 38,016 isoforms generated by the alternative splicing of four variable exon clusters, which allows every neuron in the fly to display a distinctive set of Dscam proteins on its cell surface. Drosophila Dscam1 is a cell-surface protein that plays important roles in neural development and axon tiling of neurons. It is shown that thousands of isoforms bind themselves through specific homophilic (self-binding) interactions, a process which mediates cellular self-recognition. Drosophila Dscam2 is also alternatively spliced and plays a key role in the development of two visual system neurons, monopolar cells L1 and L2. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. This group belongs to the C2-set of IgSF domains, having A, B, and E strands in one beta-sheet and A', G, F, C, and C' in the other. Unlike other Ig domain sets, the C2-set lacks the D strand.


Pssm-ID: 409549 [Multi-domain]  Cd Length: 88  Bit Score: 43.29  E-value: 4.29e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1207180310  480 LEVYQSIADLTVKAKDQAVFKCEVSDENVKGI-WYKNGVEVKPDARTLITHIGRIHkltIDDVKPEDEGDY 549
Cdd:cd20957      2 LSATIDPPVQTVDFGRTAVFNCSVTGNPIHTVlWMKDGKPLGHSSRVQILSEDVLV---IPSVKREDKGMY 69
IgI_C2_MyBP-C-like cd20967
Domain C2 of human cardiac Myosin Binding Protein C and similar domains; a member of the I-set ...
 1122-1189 4.45e-05

Domain C2 of human cardiac Myosin Binding Protein C and similar domains; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin (Ig) Domain C2 of human cardiac Myosin Binding Protein C (MyBP-C) and similar domains. MyBP-C is a thick filament protein involved in the regulation of muscle contraction. Mutations in cardiac MyBP-C gene are the second most frequent cause of hypertrophic cardiomyopathy. MyBP-C binds to myosin with two binding sites, one at its C-terminus and another at its N-terminus. The N-terminal binding site, consisting of immunoglobulin (lg) domains C1 and C2 connected by a flexible linker, interacts with the S2 segment of myosin in a phosphorylation-regulated manner. The C1 and C2 Ig domains can bind to and activate or inhibit the thin filament. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structures of the Ig domains of MyBP-C lack this strand and thus belong to the I-set of Ig superfamily domains. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors.


Pssm-ID: 409559  Cd Length: 82  Bit Score: 43.00  E-value: 4.45e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1207180310 1122 VIAGYNATLSCSVRGiPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDS 1189
Cdd:cd20967      9 VSKGHKIRLTVELAD-PDAEVKWYKDGQELQSSSKVIFESIGAKRTLTVQQASLADAGEYQCVAGGEK 75
Ig_3 pfam13927
Immunoglobulin domain; This family contains immunoglobulin-like domains.
 490-550 5.26e-05

Immunoglobulin domain; This family contains immunoglobulin-like domains.


Pssm-ID: 464046 [Multi-domain]  Cd Length: 78  Bit Score: 42.55  E-value: 5.26e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1207180310  490 TVKAKDQAVFKCEVSDENVKGI-WYKNGVEVKPDARTLITHIGRIHKLTIDDVKPEDEGDYT 550
Cdd:pfam13927   12 TVREGETVTLTCEATGSPPPTItWYKNGEPISSGSTRSRSLSGSNSTLTISNVTRSDAGTYT 73
I-set pfam07679
Immunoglobulin I-set domain;
83-182 5.89e-05

Immunoglobulin I-set domain;


Pssm-ID: 400151 [Multi-domain]  Cd Length: 90  Bit Score: 43.01  E-value: 5.89e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   83 FTEKPHSGEVNVGENIIFIARVCGESllkKPTVKWFKGkwmDLASKSGKHLQLKEhydrNTKVYTFEMHiiAAKANFAGA 162
Cdd:pfam07679    3 FTQKPKDVEVQEGESARFTCTVTGTP---DPEVSWFKD---GQPLRSSDRFKVTY----EGGTYTLTIS--NVQPDDSGK 70

                           90       100
                   ....*....|....*....|
gi 1207180310  163 YRCEVSSRDKFDSCNFDLIV 182
Cdd:pfam07679   71 YTCVATNSAGEAEASAELTV 90
IgI_2_RPTP_IIa_LAR_like cd05738
Second immunoglobulin (Ig)-like domain of the receptor protein tyrosine phosphatase (RPTP)-F; ...
 929-974 5.99e-05

Second immunoglobulin (Ig)-like domain of the receptor protein tyrosine phosphatase (RPTP)-F; member of the I-set of IgSF domains; The members here are composed of the second immunoglobulin (Ig)-like domain found in the receptor protein tyrosine phosphatase (RPTP)-F, also known as LAR. LAR belongs to the RPTP type IIa subfamily. Members of this subfamily are cell adhesion molecule-like proteins involved in central nervous system (CNS) development. They have large extracellular portions comprised of multiple Ig-like domains and two to nine fibronectin type III (FNIII) domains and a cytoplasmic portion having two tandem phosphatase domains.


Pssm-ID: 409400 [Multi-domain]  Cd Length: 91  Bit Score: 43.08  E-value: 5.99e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*..
gi 1207180310  929 GKPRPQVSWTKNDEPLDPKSVSIRNSDTDT-ILFIRRSERKDSGKYD 974
Cdd:cd05738     25 GNPDPEISWFKDFLPVDTATSNGRIKQLRSgALQIENSEESDQGKYE 71
Ig_DSCAM cd05734
Immunoglobulin (Ig)-like domain of Down Syndrome Cell Adhesion molecule (DSCAM); The members ...
 1111-1193 6.05e-05

Immunoglobulin (Ig)-like domain of Down Syndrome Cell Adhesion molecule (DSCAM); The members here are composed of the immunoglobulin (Ig)-like domain of Down Syndrome Cell Adhesion molecule (DSCAM). DSCAM is a cell adhesion molecule expressed largely in the developing nervous system. The gene encoding DSCAM is located at human chromosome 21q22, the locus associated with the intellectual disability phenotype of Down Syndrome. DSCAM is predicted to be the largest member of the IG superfamily. It has been demonstrated that DSCAM can mediate cation-independent homophilic intercellular adhesion.


Pssm-ID: 409397 [Multi-domain]  Cd Length: 97  Bit Score: 43.25  E-value: 6.05e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMD--------ITNEAKYRMFSNQGVLtleIRKPCPFDGGVYM 1182
Cdd:cd05734      2 PRFVVQPNDQDGIYGKAVVLNCSADGYPPPTIVWKHSKGSgvpqfqhiVPLNGRIQLLSNGSLL---IKHVLEEDSGYYL 78

                           90
                   ....*....|.
gi 1207180310 1183 CKAVNDSGEDL 1193
Cdd:cd05734     79 CKVSNDVGADI 89
IgI_3_Robo cd05725
Third immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of ...
 1118-1190 7.12e-05

Third immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the third immunoglobulin (Ig)-like domain in Robo (roundabout) receptors. Robo receptors play a role in the development of the central nervous system (CNS), and are receptors of Slit protein. Slit is a repellant secreted by the neural cells in the midline. Slit acts through Robo to prevent most neurons from crossing the midline from either side. Three mammalian Robo homologs (Robo1, Robo2, Robo3), and three mammalian Slit homologs (Slit-1,Slit-2, Slit-3), have been identified. Commissural axons, which cross the midline, express low levels of Robo; longitudinal axons, which avoid the midline, express high levels of Robo. Robo1, Robo2, and Robo3 are expressed by commissural neurons in the vertebrate spinal cord and Slit-1, Slit-2, and Slit-3 are expressed at the ventral midline. Robo-3 is a divergent member of the Robo family which instead of being a positive regulator of Slit responsiveness, antagonizes Slit responsiveness in precrossing axons. The Slit-Robo interaction is mediated by the second leucine-rich repeat (LRR) domain of Slit and the two N-terminal Ig domains of Robo, Ig1 and Ig2. The primary Robo binding site for Slit2 has been shown by surface plasmon resonance experiments and mutational analysis to be the Ig1 domain, while the Ig2 domain has been proposed to harbor a weak secondary binding site. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409390 [Multi-domain]  Cd Length: 83  Bit Score: 42.38  E-value: 7.12e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1207180310 1118 KSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITnEAKYRMFSNQgvlTLEIRKPCPFDGGVYMCKAVNDSG 1190
Cdd:cd05725      5 QNQVVLVDDSAEFQCEVGGDPVPTVRWRKEDGELP-KGRYEILDDH---SLKIRKVTAGDMGSYTCVAENMVG 73
IgI_2_Robo cd05724
Second immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of ...
 926-973 7.54e-05

Second immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the second immunoglobulin (Ig)-like domain in Robo (roundabout) receptors. Robo receptors play a role in the development of the central nervous system (CNS), and are receptors of the Slit protein. Slit is a repellant secreted by the neural cells in the midline. Slit acts through Robo to prevent most neurons from crossing the midline from either side. Three mammalian Robo homologs (Robo1, Robo2, and Robo3), and three mammalian Slit homologs (Slit-1,Slit-2, Slit-3), have been identified. Commissural axons, which cross the midline, express low levels of Robo; longitudinal axons, which avoid the midline, express high levels of Robo. Robo1, Robo2, and Robo3 are expressed by commissural neurons in the vertebrate spinal cord and Slit-1, Slit-2, Slit-3 are expressed at the ventral midline. Robo-3 is a divergent member of the Robo family which instead of being a positive regulator of Slit responsiveness, antagonizes Slit responsiveness in precrossing axons. The Slit-Robo interaction is mediated by the second leucine-rich repeat (LRR) domain of Slit and the two N-terminal Ig domains of Robo, Ig1 and Ig2. The primary Robo binding site for Slit-2 has been shown by surface plasmon resonance experiments and mutational analysis to be the Ig1 domain, while the Ig2 domain has been proposed to harbor a weak secondary binding site. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409389 [Multi-domain]  Cd Length: 87  Bit Score: 42.39  E-value: 7.54e-05
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1207180310  926 PFQGKPRPQVSWTKNDEPLDPKSVSIRNSDtDTILFIRRSERKDSGKY 973
Cdd:cd05724     21 PPRGHPEPTVSWRKDGQPLNLDNERVRIVD-DGNLLIAEARKSDEGTY 67
IgI_8_hMLCK_like cd05762
Eighth immunoglobulin (Ig)-like domain of human myosin light-chain kinase (MLCK) and similar ...
 639-705 7.64e-05

Eighth immunoglobulin (Ig)-like domain of human myosin light-chain kinase (MLCK) and similar protein; member of the I-set of IgSF domains; The members here are composed of the eighth immunoglobulin (Ig)-like domain of human myosin light-chain kinase (MLCK) and similar proteins. Myosin light-chain kinase (MLCK) is a key regulator of different forms of cell motility involving actin and myosin II. Agonist stimulation of smooth muscle cells increases cytosolic Ca2+ which binds calmodulin. This Ca2+-calmodulin complex in turn binds to and activates MLCK. Activated MLCK leads to the phosphorylation of the 20 kDa myosin regulatory light chain (RLC) of myosin II and the stimulation of actin-activated myosin MgATPase activity. MLCK is widely present in vertebrate tissues; it phosphorylates the 20 kDa RLC of both smooth and nonmuscle myosin II. Phosphorylation leads to the activation of the myosin motor domain and altered structural properties of myosin II. In smooth muscle MLCK it is involved in initiating contraction. In nonmuscle cells, MLCK may participate in cell division and cell motility; it has been suggested MLCK plays a role in cardiomyocyte differentiation and contraction through regulation of nonmuscle myosin II.


Pssm-ID: 409419  Cd Length: 99  Bit Score: 43.02  E-value: 7.64e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1207180310  639 TWtMKNGEVLTDSDGrVHVESTKGHCIFTIEGAERQDEGVYSVIVRNPAGEDTADINVKVVDVPDPP 705
Cdd:cd05762     34 TW-MKFRKQIQEGEG-IKIENTENSSKLTITEGQQEHCGCYTLEVENKLGSRQAQVNLTVVDKPDPP 98
IgI_NCAM-1 cd05869
Immunoglobulin (Ig)-like I-set domain of Neural Cell Adhesion Molecule 1 (NCAM-1); The members ...
 1111-1200 7.96e-05

Immunoglobulin (Ig)-like I-set domain of Neural Cell Adhesion Molecule 1 (NCAM-1); The members here are composed of the fourth Ig domain of Neural Cell Adhesion Molecule 1(NCAM-1). NCAM plays important roles in the development and regeneration of the central nervous system, in synaptogenesis and neural migration. NCAM mediates cell-cell and cell-substratum recognition and adhesion via homophilic (NCAM-NCAM) and heterophilic (NCAM-non-NCAM) interactions. NCAM is expressed as three major isoforms having different intracellular extensions. The extracellular portion of NCAM has five N-terminal Ig-like domains and two fibronectin type III domains. The double zipper adhesion complex model for NCAM homophilic binding involves Ig1, Ig2, and Ig3. By this model, Ig1 and Ig2 mediate dimerization of NCAM molecules situated on the same cell surface (cis interactions), and Ig3 domains mediate interactions between NCAM molecules expressed on the surface of opposing cells (trans interactions), through binding to the Ig1 and Ig2 domains. The adhesive ability of NCAM is modulated by the addition of polysialic acid chains to the fifth Ig-like domain. One of the unique features of I-set domains is the lack of a C" strand. The structures of this group show that the Ig domain lacks this strand and thus is a member of the I-set of Ig domains.


Pssm-ID: 143277 [Multi-domain]  Cd Length: 97  Bit Score: 42.66  E-value: 7.96e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAK-------YRMFSNQGVLTLeirKPCPF-DGGVYM 1182
Cdd:cd05869      3 PKITYVENQTAMELEEQITLTCEASGDPIPSITWRTSTRNISSEEKtldghivVRSHARVSSLTL---KYIQYtDAGEYL 79

                           90
                   ....*....|....*...
gi 1207180310 1183 CKAVNDSGEDLVECKLEV 1200
Cdd:cd05869     80 CTASNTIGQDSQSMYLEV 97
IgI_M-protein_C cd05891
C-terminal immunoglobulin (Ig)-like domain of M-protein; member of the I-set of Ig superfamily ...
 595-698 8.25e-05

C-terminal immunoglobulin (Ig)-like domain of M-protein; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the C-terminal immunoglobulin (Ig)-like domain of M-protein (also known as myomesin-2). M-protein is a structural protein localized to the M-band, a transverse structure in the center of the sarcomere, and is a candidate for M-band bridges. M-protein is modular consisting mainly of repetitive IG-like and fibronectin type III (FnIII) domains and has a muscle-type specific expression pattern. M-protein is present in fast fibers.


Pssm-ID: 143299  Cd Length: 92  Bit Score: 42.59  E-value: 8.25e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  595 ILVVAGNKLRLDVPITGDPAPTVIWTKGEKDSskegeshpDPKNTWTMKngevltdsdgrvhVESTKgHCIFTIEGAERQ 674
Cdd:cd05891     11 VTIMEGKTLNLTCTVFGNPDPEVIWFKNDQDI--------ELSEHYSVK-------------LEQGK-YASLTIKGVTSE 68

                           90       100
                   ....*....|....*....|....
gi 1207180310  675 DEGVYSVIVRNPAGEDTADINVKV 698
Cdd:cd05891     69 DSGKYSINVKNKYGGETVDVTVSV 92
Ig_Pro_neuregulin cd05750
Immunoglobulin (Ig)-like domain in neuregulins; The members here are composed of the ...
 310-373 8.45e-05

Immunoglobulin (Ig)-like domain in neuregulins; The members here are composed of the immunoglobulin (Ig)-like domain in neuregulins (NRGs). NRGs are signaling molecules which participate in cell-cell interactions in the nervous system, breast, heart, and other organ systems, and are implicated in the pathology of diseases including schizophrenia, multiple sclerosis, and breast cancer. There are four members of the neuregulin gene family (NRG-1, NRG-2, NRG-3, and NRG-4). The NRG-1 protein, binds to and activates the tyrosine kinases receptors ErbB3 and ErbB4, initiating signaling cascades. The other NRGs proteins bind one or the other or both of these ErbBs. NRG-1 has multiple functions: in the brain it regulates various processes such as radial glia formation and neuronal migration, dendritic development, and expression of neurotransmitters receptors, while in the peripheral nervous system NRG-1 regulates processes such as target cell differentiation, and Schwann cell survival. There are many NRG-1 isoforms which arise from the alternative splicing of mRNA. Less is known of the functions of the other NRGs. NRG-2 and NRG-3 are expressed predominantly in the nervous system. NRG-2 is expressed by motor neurons and terminal Schwann cells, and is concentrated near synaptic sites and may be a signal that regulates synaptic differentiation. NRG-4 has been shown to direct pancreatic islet cell development towards the delta-cell lineage.


Pssm-ID: 409408 [Multi-domain]  Cd Length: 92  Bit Score: 42.50  E-value: 8.45e-05
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1207180310  310 VEKGHKIKLEIEVA--NPDAEVKWLKNGQEIHPTGSKYIfeSVGNKR---FLTINNCSLSDDAAYMCVV 373
Cdd:cd05750     11 VQEGSKLVLKCEATseNPSPRYRWFKDGKELNRKRPKNI--KIRNKKknsELQINKAKLEDSGEYTCVV 77
IgI_Twitchin_like cd20949
C-terminal immunoglobulin-like domain of the myosin-associated giant protein kinase Twitchin, ...
 402-476 9.14e-05

C-terminal immunoglobulin-like domain of the myosin-associated giant protein kinase Twitchin, and similar domains; member of the I-set IgSF domains; The members here are composed of the C-terminal immunoglobulin-like domain of the myosin-associated giant protein kinase Twitchin and similar proteins, including Caenorhabditis elegans and Aplysia californica Twitchin, Drosophila melanogaster Projectin, and similar proteins. These are very large muscle proteins containing multiple immunoglobulin (Ig)-like and fibronectin type III (FN3) domains and a single kinase domain near the C-terminus. In humans these proteins are called Titin. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The Ig-like domain of the Twitchin is a member of the I-set IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins (titin, telokin, and twitchin), the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D.


Pssm-ID: 409541 [Multi-domain]  Cd Length: 89  Bit Score: 42.32  E-value: 9.14e-05
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1207180310  402 KGDRVEFECEV-SEEGAQVKWEKDGVELTRDESF--KYRFKKDGckhvLIINDVTKEDCGHYRVKTNGGQSLAELMVQ 476
Cdd:cd20949     13 EGQSATILCEVkGEPQPNVTWHFNGQPISASVADmsKYRILADG----LLINKVTQDDTGEYTCRAYQVNSIASDMQE 86
IgI_1_Palladin_C cd05893
First C-terminal immunoglobulin (Ig)-like domain of palladin; member of the I-set of Ig ...
 1111-1196 9.53e-05

First C-terminal immunoglobulin (Ig)-like domain of palladin; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the C-terminal immunoglobulin (Ig)-like domain of palladin. Palladin belongs to the palladin-myotilin-myopalladin family. Proteins belonging to this family contain multiple Ig-like domains and function as scaffolds, modulating actin cytoskeleton. Palladin binds to alpha-actinin ezrin, vasodilator-stimulated phosphoprotein VASP, SPIN90 (also known as DIP or mDia interacting protein), and Src. Palladin also binds F-actin directly, via its Ig3 domain. Palladin is expressed as several alternatively spliced isoforms, having various combinations of Ig-like domains, in a cell-type-specific manner. It has been suggested that palladin's different Ig-like domains may be specialized for distinct functions. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409474  Cd Length: 92  Bit Score: 42.39  E-value: 9.53e-05
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSN--QGVLTLEIRKPCPFDGGVYMCKAVND 1188
Cdd:cd05893      1 PFFEMKLKHYKIFEGMPVTFTCRVAGNPKPKIYWFKDGKQISPKSDHYTIQRdlDGTCSLHTTASTLDDDGNYTIMAANP 80


                   ....*...
gi 1207180310 1189 SGEdlVEC 1196
Cdd:cd05893     81 QGR--ISC 86
Ig5_Contactin cd04969
Fifth immunoglobulin (Ig) domain of contactin; The members here are composed of the fifth ...
 1111-1190 1.09e-04

Fifth immunoglobulin (Ig) domain of contactin; The members here are composed of the fifth immunoglobulin (Ig) domain of contactins. Contactins are neural cell adhesion molecules and are comprised of six Ig domains followed by four fibronectin type III (FnIII) domains anchored to the membrane by glycosylphosphatidylinositol. The first four Ig domains form the intermolecular binding fragment, which arranges as a compact U-shaped module via contacts between Ig domains 1 and 4, and between Ig domains 2 and 3. Contactin-2 (TAG-1, axonin-1) may play a part in the neuronal processes of neurite outgrowth, axon guidance and fasciculation, and neuronal migration. This group also includes contactin-1 and contactin-5. The different contactins show different expression patterns in the central nervous system. During development and in adulthood, contactin-2 is transiently expressed in subsets of central and peripheral neurons. Contactin-5 is expressed specifically in the rat postnatal nervous system, peaking at about 3 weeks postnatal, and a lack of contactin-5 (NB-2) results in an impairment of neuronal activity in the rat auditory system. Contactin-5 is highly expressed in the adult human brain in the occipital lobe and in the amygdala. Contactin-1 is differentially expressed in tumor tissues and may, through a RhoA mechanism, facilitate invasion and metastasis of human lung adenocarcinoma.


Pssm-ID: 409358 [Multi-domain]  Cd Length: 89  Bit Score: 42.06  E-value: 1.09e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFT-HPLKSRSVIA-GYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQgvlTLEIRKPCPFDGGVYMCKAVND 1188
Cdd:cd04969      1 PDFElNPVKKKILAAkGGDVIIECKPKASPKPTISWSKGTELLTNSSRICILPDG---SLKIKNVTKSDEGKYTCFAVNF 77


                   ..
gi 1207180310 1189 SG 1190
Cdd:cd04969     78 FG 79
Ig cd00096
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
 603-689 1.11e-04

Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. Members of this group are components of immunoglobulin, neuroglia, cell surface glycoproteins, including T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, including butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. Ig superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Typically, the V-set domains have A, B, E, and D strands in one sheet and A', G, F, C, C' and C" in the other. The structures in C1-set are smaller than those in the V-set; they have one beta sheet that is formed by strands A, B, E, and D and the other by strands G, F, C, and C'. Moreover, a C1-set Ig domain contains a short C' strand (three residues) and lacks A' and C" strand. Unlike other Ig domain sets, C2-set structures do not have a D strand. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409353 [Multi-domain]  Cd Length: 70  Bit Score: 41.55  E-value: 1.11e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  603 LRLDVPITGDPAPTVIWtkgekdsskegeshpdpkntwtMKNGEVLTDSDgRVHVESTKGHCIFTIEGAERQDEGVYSVI 682
Cdd:cd00096      1 VTLTCSASGNPPPTITW----------------------YKNGKPLPPSS-RDSRRSELGNGTLTISNVTLEDSGTYTCV 57


                   ....*..
gi 1207180310  683 VRNPAGE 689
Cdd:cd00096     58 ASNSAGG 64
IgI_5_Robo cd20952
Fifth Ig-like domain of Roundabout (Robo) homolog 1/2, and similar domains; a member of the ...
 1122-1200 1.27e-04

Fifth Ig-like domain of Roundabout (Robo) homolog 1/2, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the fifth Ig-like domain of Roundabout (Robo) homolog 1/2 and similar domains. Robo receptors play a role in the development of the central nervous system (CNS), and are receptors of Slit protein. Slit is a repellant secreted by the neural cells in the midline. Slit acts through Robo to prevent most neurons from crossing the midline from either side. Three mammalian Robo homologs (Robo1, -2, and -3), and three mammalian Slit homologs (Slit-1,-2, -3), have been identified. Commissural axons, which cross the midline, express low levels of Robo; longitudinal axons, which avoid the midline, express high levels of Robo. Robo1, -2, and -3 are expressed by commissural neurons in the vertebrate spinal cord and Slits 1, -2, -3 are expressed at the ventral midline. Robo-3 is a divergent member of the Robo family which instead of being a positive regulator of slit responsiveness, antagonizes slit responsiveness in precrossing axons. The Slit-Robo interaction is mediated by the second leucine-rich repeat (LRR) domain of Slit and the two N-terminal Ig domains of Robo, Ig1 and Ig2. The primary Robo binding site for Slit2 has been shown by surface plasmon resonance experiments and mutational analysis to be is the Ig1 domain, while the Ig2 domain has been proposed to harbor a weak secondary binding site. The fifth Ig-like domain of Robo 1 and 2 is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors


Pssm-ID: 409544 [Multi-domain]  Cd Length: 87  Bit Score: 41.71  E-value: 1.27e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1122 VIAGYNATLSCSVRGIPKPKITWYK--NKMDITNEakyRMFS-NQGvlTLEIRKPCPFDGGVYMCKAVNDSGEDLVECKL 1198
Cdd:cd20952     11 VAVGGTVVLNCQATGEPVPTISWLKdgVPLLGKDE---RITTlENG--SLQIKGAEKSDTGEYTCVALNLSGEATWSAVL 85


                   ..
gi 1207180310 1199 EV 1200
Cdd:cd20952     86 DV 87
IgC2_3_Dscam cd20957
Third immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar domains; ...
 1121-1202 1.36e-04

Third immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar domains; a member of the Constant 2 (C2)-set of IgSF domains; The members here are composed of the third immunoglobulin domain of the Drosophila melanogaster Down syndrome cell adhesion molecule (DSCAM) protein and similar proteins. Down syndrome cell adhesion molecule (DSCAM) is a cell adhesion molecule that plays critical roles in neural development, including axon guidance and branching, axon target recognition, self-avoidance and synaptic formation. DSCAM belongs to the immunoglobulin superfamily and contributes to defects in the central nervous system in Down syndrome patients. Vertebrate DSCAMs differ from Drosophila Dscam1 in that they lack the extensive alternative splicing that occurs in the insect gene. Drosophila melanogaster Dscam has 38,016 isoforms generated by the alternative splicing of four variable exon clusters, which allows every neuron in the fly to display a distinctive set of Dscam proteins on its cell surface. Drosophila Dscam1 is a cell-surface protein that plays important roles in neural development and axon tiling of neurons. It is shown that thousands of isoforms bind themselves through specific homophilic (self-binding) interactions, a process which mediates cellular self-recognition. Drosophila Dscam2 is also alternatively spliced and plays a key role in the development of two visual system neurons, monopolar cells L1 and L2. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. This group belongs to the C2-set of IgSF domains, having A, B, and E strands in one beta-sheet and A', G, F, C, and C' in the other. Unlike other Ig domain sets, the C2-set lacks the D strand.


Pssm-ID: 409549 [Multi-domain]  Cd Length: 88  Bit Score: 41.75  E-value: 1.36e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1121 SVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPcpfDGGVYMCKAVNDSgeDLVECKLEV 1200
Cdd:cd20957     12 TVDFGRTAVFNCSVTGNPIHTVLWMKDGKPLGHSSRVQILSEDVLVIPSVKRE---DKGMYQCFVRNDG--DSAQATAEL 86


                   ..
gi 1207180310 1201 RL 1202
Cdd:cd20957     87 KL 88
IgI_NCAM-1_like cd05732
Immunoglobulin (Ig)-like I-set domain of Neural Cell Adhesion Molecule 1 (NCAM-1) and similar ...
 1111-1200 1.38e-04

Immunoglobulin (Ig)-like I-set domain of Neural Cell Adhesion Molecule 1 (NCAM-1) and similar proteins; The members here are composed of the fourth immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule (NCAM-1). NCAM plays important roles in the development and regeneration of the central nervous system, in synaptogenesis and neural migration. NCAM mediates cell-cell and cell-substratum recognition and adhesion via homophilic (NCAM-NCAM), and heterophilic (NCAM-non-NCAM), interactions. NCAM is expressed as three major isoforms having different intracellular extensions. The extracellular portion of NCAM has five N-terminal Ig-like domains and two fibronectin type III domains. The double zipper adhesion complex model for NCAM homophilic binding involves Ig1, Ig2, and Ig3. By this model, Ig1 and Ig2 mediate dimerization of NCAM molecules situated on the same cell surface (cis interactions), and Ig3 domains mediate interactions between NCAM molecules expressed on the surface of opposing cells (trans interactions), through binding to the Ig1 and Ig2 domains. The adhesive ability of NCAM is modulated by the addition of polysialic acid chains to the fifth Ig-like domain. Also included in this group is NCAM-2 (also known as OCAM/mamFas II and RNCAM) NCAM-2 is differentially expressed in the developing and mature olfactory epithelium (OE). One of the unique features of I-set domains is the lack of a C" strand. The structures of this group show that the Ig domain lacks this strand and thus is a member of the I-set of Ig domains.


Pssm-ID: 409395 [Multi-domain]  Cd Length: 96  Bit Score: 42.13  E-value: 1.38e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHpLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAK-----YRMFSNQGVLTLEIRKPCPFDGGVYMCKA 1185
Cdd:cd05732      3 PKITY-LENQTAVELEQITLTCEAEGDPIPEITWRRATRGISFEEGdldgrIVVRGHARVSSLTLKDVQLTDAGRYDCEA 81

                           90
                   ....*....|....*
gi 1207180310 1186 VNDSGEDLVECKLEV 1200
Cdd:cd05732     82 SNRIGGDQQSMYLEV 96
IgI_Myotilin_C cd05892
C-terminal immunoglobulin (Ig)-like domain of myotilin; member of the I-set of Ig superfamily ...
 388-462 1.53e-04

C-terminal immunoglobulin (Ig)-like domain of myotilin; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the C-terminal immunoglobulin (Ig)-like domain of myotilin. Mytolin belongs to the palladin-myotilin-myopalladin family. Proteins belonging to the latter family contain multiple Ig-like domains and function as scaffolds, modulating the actin cytoskeleton. Myotilin is most abundant in skeletal and cardiac muscle and is involved in maintaining sarcomere integrity. It binds to alpha-actinin, filamin, and actin. Mutations in myotilin lead to muscle disorders. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409473  Cd Length: 92  Bit Score: 41.68  E-value: 1.53e-04
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1207180310  388 PVLIVRNLEDQmAMKGDRVEFECEVS-EEGAQVKWEKDGVELTRDESfKYRFKKDGC-KHVLIINDVTKEDCGHYRV 462
Cdd:cd05892      1 PMFIQKPQNKK-VLEGDPVRLECQISaIPPPQIFWKKNNEMLQYNTD-RISLYQDNCgRICLLIQNANKKDAGWYTV 75
IgI_Myotilin_C_like cd05744
Immunoglobulin (Ig)-like domain of myotilin, palladin, and myopalladin; member of the I-set of ...
 597-696 1.80e-04

Immunoglobulin (Ig)-like domain of myotilin, palladin, and myopalladin; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the immunoglobulin (Ig)-like domain in myotilin, palladin, and myopalladin. Myotilin, palladin, and myopalladin function as scaffolds that regulate actin organization. Myotilin and myopalladin are most abundant in skeletal and cardiac muscle; palladin is ubiquitously expressed in the organs of developing vertebrates and plays a key role in cellular morphogenesis. The three family members each interact with specific molecular partners with all three binding to alpha-actinin; In addition, palladin also binds to vasodilator-stimulated phosphoprotein (VASP) and ezrin, myotilin binds to filamin and actin, and myopalladin also binds to nebulin and cardiac ankyrin repeat protein (CARP). This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409405 [Multi-domain]  Cd Length: 91  Bit Score: 41.71  E-value: 1.80e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  597 VVAGNKLRLDVPITGDPAPTVIWtkgekdsskegeshpdpkntwtMKNGEVLTDSDGRVHVESTKGHCIFTIEGAERQDE 676
Cdd:cd05744     12 VQEGRLCRFDCKVSGLPTPDLFW----------------------QLNGKPVRPDSAHKMLVRENGRHSLIIEPVTKRDA 69

                           90       100
                   ....*....|....*....|..
gi 1207180310  677 GVYSVIVRNPAGEDT--ADINV 696
Cdd:cd05744     70 GIYTCIARNRAGENSfnAELVV 91
IgI_LRIG1-like cd05763
Immunoglobulin (Ig)-like ectodomain of the LRIG1 (Leucine-rich Repeats And Immunoglobulin-like ...
 1113-1190 1.81e-04

Immunoglobulin (Ig)-like ectodomain of the LRIG1 (Leucine-rich Repeats And Immunoglobulin-like Domains Protein 1) and similar proteins; member of the I-set of IgSF domains; The members here are composed of subgroup of the immunoglobulin (Ig) domain found in the Ig superfamily. The Ig superfamily is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. The ectodomain of LRIG1 has two distinct regions: the proposed 15 LRRs and three Ig-like domains closer to the membrane. LRIG1 has been reported to interact with many receptor tyrosine kinases, GDNF/c-Ret, E-cadherin, JAK/STAT, c-Met, and the EGFR family signaling systems. Immunoglobulin Superfamily (IgSF) domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The structure of the LRIG1 extracellular Ig domain lacks a C" strand and thus is better described as a member of the I-set of IgSF domains.


Pssm-ID: 409420 [Multi-domain]  Cd Length: 91  Bit Score: 41.45  E-value: 1.81e-04
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1207180310 1113 FTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKN-KMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSG 1190
Cdd:cd05763      2 FTKTPHDITIRAGSTARLECAATGHPTPQIAWQKDgGTDFPAARERRMHVMPEDDVFFIVDVKIEDTGVYSCTAQNSAG 80
IgI_2_FGFR cd05857
Second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor; member of ...
 1111-1190 1.94e-04

Second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor; member of the I-set of IgSF domains; The members here are composed of the second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor. FGF receptors bind FGF signaling polypeptides. FGFs participate in multiple processes such as morphogenesis, development, and angiogenesis. FGFs bind to four FGF receptor tyrosine kinases (FGFR1, FGFR2, FGFR3, FGFR4). Receptor diversity is controlled by alternative splicing producing splice variants with different ligand binding characteristics and different expression patterns. FGFRs have an extracellular region comprised of three IG-like domains, a single transmembrane helix, and an intracellular tyrosine kinase domain. Ligand binding and specificity reside in the Ig-like domains 2 and 3, and the linker region that connects these two. FGFR activation and signaling depend on FGF-induced dimerization, a process involving cell surface heparin or heparin sulfate proteoglycans.


Pssm-ID: 409443 [Multi-domain]  Cd Length: 95  Bit Score: 41.76  E-value: 1.94e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFTHPLKSR----SVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAK---YRMFSNQGVLTLEirKPCPFDGGVYMC 1183
Cdd:cd05857      1 PYWTNPEKMEkklhAVPAANTVKFRCPAAGNPTPTMRWLKNGKEFKQEHRiggYKVRNQHWSLIME--SVVPSDKGNYTC 78


                   ....*..
gi 1207180310 1184 KAVNDSG 1190
Cdd:cd05857     79 VVENEYG 85
IgC2_3_Dscam cd20957
Third immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar domains; ...
 578-694 2.21e-04

Third immunoglobulin domain of the Drosophila melanogaster Dscam protein, and similar domains; a member of the Constant 2 (C2)-set of IgSF domains; The members here are composed of the third immunoglobulin domain of the Drosophila melanogaster Down syndrome cell adhesion molecule (DSCAM) protein and similar proteins. Down syndrome cell adhesion molecule (DSCAM) is a cell adhesion molecule that plays critical roles in neural development, including axon guidance and branching, axon target recognition, self-avoidance and synaptic formation. DSCAM belongs to the immunoglobulin superfamily and contributes to defects in the central nervous system in Down syndrome patients. Vertebrate DSCAMs differ from Drosophila Dscam1 in that they lack the extensive alternative splicing that occurs in the insect gene. Drosophila melanogaster Dscam has 38,016 isoforms generated by the alternative splicing of four variable exon clusters, which allows every neuron in the fly to display a distinctive set of Dscam proteins on its cell surface. Drosophila Dscam1 is a cell-surface protein that plays important roles in neural development and axon tiling of neurons. It is shown that thousands of isoforms bind themselves through specific homophilic (self-binding) interactions, a process which mediates cellular self-recognition. Drosophila Dscam2 is also alternatively spliced and plays a key role in the development of two visual system neurons, monopolar cells L1 and L2. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. This group belongs to the C2-set of IgSF domains, having A, B, and E strands in one beta-sheet and A', G, F, C, and C' in the other. Unlike other Ig domain sets, the C2-set lacks the D strand.


Pssm-ID: 409549 [Multi-domain]  Cd Length: 88  Bit Score: 41.36  E-value: 2.21e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  578 DPPKIHLDcMGRTAESTILVvagnklrldvpiTGDPAPTVIWtkgekdsskegeshpdpkntwtMKNGEVLTdSDGRVHV 657
Cdd:cd20957      7 DPPVQTVD-FGRTAVFNCSV------------TGNPIHTVLW----------------------MKDGKPLG-HSSRVQI 50

                           90       100       110
                   ....*....|....*....|....*....|....*....
gi 1207180310  658 ESTKghcIFTIEGAERQDEGVYSVIVRNPA--GEDTADI 694
Cdd:cd20957     51 LSED---VLVIPSVKREDKGMYQCFVRNDGdsAQATAEL 86
Ig3_L1-CAM_like cd05731
Third immunoglobulin (Ig)-like domain of the L1 cell adhesion molecule (CAM), and similar ...
 398-461 2.40e-04

Third immunoglobulin (Ig)-like domain of the L1 cell adhesion molecule (CAM), and similar domains; The members here are composed of the third immunoglobulin (Ig)-like domain of the L1 cell adhesion molecule (CAM). L1 belongs to the L1 subfamily of cell adhesion molecules (CAMs) and is comprised of an extracellular region having six Ig-like domains and five fibronectin type III domains, a transmembrane region and an intracellular domain. L1 is primarily expressed in the nervous system and is involved in its development and function. L1 is associated with an X-linked recessive disorder, X-linked hydrocephalus, MASA syndrome, and spastic paraplegia type 1, that involves abnormalities of axonal growth. This group also contains the chicken neuron-glia cell adhesion molecule, Ng-CAM and human neurofascin.


Pssm-ID: 409394 [Multi-domain]  Cd Length: 83  Bit Score: 40.86  E-value: 2.40e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1207180310  398 QMAMKGDRVEFECevSEEG---AQVKWEKDGVELTRDESFKYRFKKdgckhVLIINDVTKEDCGHYR 461
Cdd:cd05731      5 TMVLRGGVLLLEC--IAEGlptPDIRWIKLGGELPKGRTKFENFNK-----TLKIENVSEADSGEYQ 64
IgI_1_NCAM-1 cd05865
First immunoglobulin (Ig)-like domain of neural cell adhesion molecule (NCAM-1); member of the ...
 87-175 2.51e-04

First immunoglobulin (Ig)-like domain of neural cell adhesion molecule (NCAM-1); member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the first immunoglobulin (Ig)-like domain of neural cell adhesion molecule (NCAM-1). NCAM-1 plays important roles in the development and regeneration of the central nervous system, in synaptogenesis and neural migration. NCAM mediates cell-cell and cell-substratum recognition and adhesion via homophilic (NCAM-NCAM), and heterophilic (NCAM-nonNCAM), interactions. NCAM is expressed as three major isoforms having different intracellular extensions. The extracellular portion of NCAM has five N-terminal Ig-like domains and two fibronectin type III domains. The double zipper adhesion complex model for NCAM homophilic binding involves the Ig1, Ig2, and Ig3 domains. By this model, Ig1 and Ig2 mediate dimerization of NCAM molecules situated on the same cell surface (cis interactions), and Ig3 domains mediate interactions between NCAM molecules expressed on the surface of opposing cells (trans interactions), through binding to the Ig1 and Ig2 domains. The adhesive ability of NCAM is modulated by the addition of polysialic acid chains to the fifth Ig-like domain. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409451  Cd Length: 97  Bit Score: 41.56  E-value: 2.51e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   87 PHSGEVNVGENIIFIARVCGESllKKPTVKWFkgkwmdlaSKSGKHL---QLKEHYDRNTKvYTFEMHIIAAKANFAGAY 163
Cdd:cd05865      7 PSQGEISVGESKFFLCQVAGEA--KDKDISWF--------SPNGEKLtpnQQRISVVRNDD-YSSTLTIYNANIDDAGIY 75

                           90
                   ....*....|..
gi 1207180310  164 RCEVSSRDKFDS 175
Cdd:cd05865     76 KCVVSNEDEGES 87
IgI_APEG-1_like cd20975
Immunoglobulin-like domain of human Aortic Preferentially Expressed Protein-1 (APEG-1) and ...
 918-973 2.84e-04

Immunoglobulin-like domain of human Aortic Preferentially Expressed Protein-1 (APEG-1) and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin I-set (IgI) domain of the Human Aortic Preferentially Expressed Protein-1 (APEG-1) and similar proteins. APEG-1 is a novel specific smooth muscle differentiation marker predicted to play a role in the growth and differentiation of arterial smooth muscle cells (SMCs). The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the human APEG-1 lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409567  Cd Length: 91  Bit Score: 40.92  E-value: 2.84e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1207180310  918 GETINLVIPFQGKPRPQVSWTKNDEPLDPKSVSIRNSDTDTILFIR--RSERKDSGKY 973
Cdd:cd20975     15 GQDVIMSIRVQGEPKPVVSWLRNRQPVRPDQRRFAEEAEGGLCRLRilAAERGDAGFY 72
IgI_2_Robo cd05724
Second immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of ...
 633-689 3.05e-04

Second immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the second immunoglobulin (Ig)-like domain in Robo (roundabout) receptors. Robo receptors play a role in the development of the central nervous system (CNS), and are receptors of the Slit protein. Slit is a repellant secreted by the neural cells in the midline. Slit acts through Robo to prevent most neurons from crossing the midline from either side. Three mammalian Robo homologs (Robo1, Robo2, and Robo3), and three mammalian Slit homologs (Slit-1,Slit-2, Slit-3), have been identified. Commissural axons, which cross the midline, express low levels of Robo; longitudinal axons, which avoid the midline, express high levels of Robo. Robo1, Robo2, and Robo3 are expressed by commissural neurons in the vertebrate spinal cord and Slit-1, Slit-2, Slit-3 are expressed at the ventral midline. Robo-3 is a divergent member of the Robo family which instead of being a positive regulator of Slit responsiveness, antagonizes Slit responsiveness in precrossing axons. The Slit-Robo interaction is mediated by the second leucine-rich repeat (LRR) domain of Slit and the two N-terminal Ig domains of Robo, Ig1 and Ig2. The primary Robo binding site for Slit-2 has been shown by surface plasmon resonance experiments and mutational analysis to be the Ig1 domain, while the Ig2 domain has been proposed to harbor a weak secondary binding site. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409389 [Multi-domain]  Cd Length: 87  Bit Score: 40.85  E-value: 3.05e-04
                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1207180310  633 HPDPKNTWtMKNGEVLTDSDGRVHvESTKGHCIftIEGAERQDEGVYSVIVRNPAGE 689
Cdd:cd05724     25 HPEPTVSW-RKDGQPLNLDNERVR-IVDDGNLL--IAEARKSDEGTYKCVATNMVGE 77
Ig5_Contactin-1 cd05852
Fifth immunoglobulin (Ig) domain of contactin-1; The members here are composed of the fifth ...
 1111-1191 3.09e-04

Fifth immunoglobulin (Ig) domain of contactin-1; The members here are composed of the fifth immunoglobulin (Ig) domain of the neural cell adhesion molecule contactin-1. Contactins are comprised of six Ig domains followed by four fibronectin type III (FnIII) domains anchored to the membrane by glycosylphosphatidylinositol. Contactin-1 is differentially expressed in tumor tissues and may through a RhoA mechanism, facilitate invasion and metastasis of human lung adenocarcinoma.


Pssm-ID: 409438  Cd Length: 89  Bit Score: 40.75  E-value: 3.09e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1111 PKFT-HPLKSRSVIA-GYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQgvlTLEIRKPCPFDGGVYMCKAVND 1188
Cdd:cd05852      1 PTFEfNPMKKKILAAkGGRVIIECKPKAAPKPKFSWSKGTELLVNNSRISIWDDG---SLEILNITKLDEGSYTCFAENN 77


                   ...
gi 1207180310 1189 SGE 1191
Cdd:cd05852     78 RGK 80
IgI_4_Robo cd05726
Fourth immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of ...
 1118-1200 3.24e-04

Fourth immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of Ig superfamily (IgSF) domains; Members here are composed the fourth immunoglobulin (Ig)-like domain in Robo (roundabout) receptors. Robo receptors play a role in the development of the central nervous system (CNS), and are receptors of Slit protein. Slit is a repellant secreted by the neural cells in the midline. Slit acts through Robo to prevent most neurons from crossing the midline from either side. Three mammalian Robo homologs (Robo1, Robo2, Robo3), and three mammalian Slit homologs (Slit-1, Slit-2, Slit-3), have been identified. Commissural axons, which cross the midline, express low levels of Robo; longitudinal axons, which avoid the midline, express high levels of Robo. Robo1, Robo2, and Robo3 are expressed by commissural neurons in the vertebrate spinal cord and Slit-1, Slit-2, and Slit-3 are expressed at the ventral midline. Robo-3 is a divergent member of the Robo family which instead of being a positive regulator of Slit responsiveness, antagonizes Slit responsiveness in precrossing axons. The Slit-Robo interaction is mediated by the second leucine-rich repeat (LRR) domain of Slit and the two N-terminal Ig domains of Robo, Ig1 and Ig2. The primary Robo binding site for Slit2 has been shown by surface plasmon resonance experiments and mutational analysis to be the Ig1 domain, while the Ig2 domain has been proposed to harbor a weak secondary binding site. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409391 [Multi-domain]  Cd Length: 98  Bit Score: 41.09  E-value: 3.24e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1118 KSRSVIAGYNATLSCSVRGIPKPKITWYKNKmditneAKYRMFSNQ-------------GVLTL-EIRKPcpfDGGVYMC 1183
Cdd:cd05726      7 RDQVVALGRTVTFQCETKGNPQPAIFWQKEG------SQNLLFPYQppqpssrfsvsptGDLTItNVQRS---DVGYYIC 77

                           90
                   ....*....|....*..
gi 1207180310 1184 KAVNDSGEDLVECKLEV 1200
Cdd:cd05726     78 QALNVAGSILAKAQLEV 94
IgI_3_WFIKKN-like cd05765
Third immunoglobulin-like domain of the human WFIKKN (WAP, follistatin, immunoglobulin, Kunitz ...
 1120-1190 3.37e-04

Third immunoglobulin-like domain of the human WFIKKN (WAP, follistatin, immunoglobulin, Kunitz and NTR domain-containing protein), and similar domains; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the third immunoglobulin-like domain of the human WFIKKN (WAP, follistatin, immunoglobulin, Kunitz and NTR domain-containing protein) and similar proteins. WFIKKN is a secreted protein that consists of multiple types of protease inhibitory modules, including two tandem Kunitz-type protease inhibitor-domains. The Ig superfamily is a heterogenous group of proteins built on a common fold comprised of a sandwich of two beta sheets. Members of the Ig superfamily are components of immunoglobulin, neuroglia, cell surface glycoproteins, such as T-cell receptors, CD2, CD4, CD8, and membrane glycoproteins, such as butyrophilin and chondroitin sulfate proteoglycan core protein. A predominant feature of most Ig domains is a disulfide bridge connecting the two beta-sheets with a tryptophan residue packed against the disulfide bond. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409422 [Multi-domain]  Cd Length: 95  Bit Score: 41.00  E-value: 3.37e-04
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1207180310 1120 RSVIAGYNATLSCSVRGIPKPKITWYKNkmdITNEAKYRMFSNQ--------GVLTLEIRKPCPFDGGVYMCKAVNDSG 1190
Cdd:cd05765     10 QTVKVGETASFHCDVTGRPQPEITWEKQ---VPGKENLIMRPNHvrgnvvvtNIGQLVIYNAQPQDAGLYTCTARNSGG 85
IgI_2_FGFR_like cd05729
Second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor, and similar ...
 893-977 3.40e-04

Second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor, and similar domains; member of the I-set of IgSF domains; The members here are composed of the second immunoglobulin (Ig)-like domain of fibroblast growth factor (FGF) receptor. FGF receptors bind FGF signaling polypeptides. FGFs participate in multiple processes such as morphogenesis, development, and angiogenesis. FGFs bind to four FGF receptor tyrosine kinases (FGFR1, FGFR2, FGFR3, FGFR4). Receptor diversity is controlled by alternative splicing producing splice variants with different ligand binding characteristics and different expression patterns. FGFRs have an extracellular region comprised of three Ig-like domains, a single transmembrane helix, and an intracellular tyrosine kinase domain. Ligand binding and specificity reside in the Ig-like domains 2 and 3, and the linker region that connects these two. FGFR activation and signaling depend on FGF-induced dimerization, a process involving cell surface heparin or heparin sulfate proteoglycans. This group also contains fibroblast growth factor (FGF) receptor like-1(FGFRL1). FGFRL1 does not have a protein tyrosine kinase domain at its C-terminus; neither does its cytoplasmic domain appear to interact with a signaling partner. It has been suggested that FGFRL1 may not have any direct signaling function, but instead acts as a decoy receptor trapping FGFs and preventing them from binding other receptors.


Pssm-ID: 409393 [Multi-domain]  Cd Length: 95  Bit Score: 41.05  E-value: 3.40e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  893 TIREIMQRPKIWLPrnlrqtlikkVGETINLVIPFQGKPRPQVSWTKNDEPLDPKSVS--IRNSDTDTILFIRRSERKDS 970
Cdd:cd05729      4 TDTEKMEEREHALP----------AANKVRLECGAGGNPMPNITWLKDGKEFKKEHRIggTKVEEKGWSLIIERAIPRDK 73


                   ....*..
gi 1207180310  971 GKYDVQV 977
Cdd:cd05729     74 GKYTCIV 80
IgI_SALM5_like cd05764
Immunoglobulin domain of human Synaptic Adhesion-Like Molecule 5 (SALM5) and similar proteins; ...
 1122-1191 3.51e-04

Immunoglobulin domain of human Synaptic Adhesion-Like Molecule 5 (SALM5) and similar proteins; member of the I-set of IgSF domains; This group contains the immunoglobulin domain of human Synaptic Adhesion-Like Molecule 5 (SALM5) and similar proteins. The SALM (for synaptic adhesion-like molecules; also known as Lrfn for leucine-rich repeat and fibronectin type III domain containing) family of adhesion molecules consists of five known members: SALM1/Lrfn2, SALM2/Lrfn1, SALM3/Lrfn4, SALM4/Lrfn3, and SALM5/Lrfn5. SALMs share a similar domain structure, containing leucine-rich repeats (LRRs), an immunoglobulin (Ig) domain, and a fibronectin III (FNIII) domain, followed by a transmembrane domain and a C-terminal PDZ-binding motif. SALM5 is implicated in autism spectrum disorders (ASDs) and schizophrenia, induces presynaptic differentiation in contacting axons. SALM5 interacts with the Ig domains of LAR (Leukocyte common Antigen-Related) family receptor protein tyrosine phosphatases (LAR-RPTPs; LAR, PTPdelta, and PTPsigma). In addition, PTPdelta is implicated in ASDs, ADHD, bipolar disorder, and restless leg syndrome. Studies have shown that LAR-RPTPs are novel and splicing-dependent presynaptic ligands for SALM5, and that they mediate SALM5-dependent presynaptic differentiation. Furthermore, SALM5 maintains AMPA receptor (AMPAR)-mediated excitatory synaptic transmission through mechanisms involving the interaction of SALM5 with LAR-RPTPs. This group belongs to the I-set of immunoglobulin superfamily (IgSF) domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand.


Pssm-ID: 409421 [Multi-domain]  Cd Length: 88  Bit Score: 40.54  E-value: 3.51e-04
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1207180310 1122 VIAGYNATLSCSVRGIPKPKITWY--KNKMdITNEAKYRMFSNQgvlTLEIRKPCPFDGGVYMCKAVNDSGE 1191
Cdd:cd05764     12 VLEGQRATLRCKARGDPEPAIHWIspEGKL-ISNSSRTLVYDNG---TLDILITTVKDTGAFTCIASNPAGE 79
Ig_2 pfam13895
Immunoglobulin domain; This domain contains immunoglobulin-like domains.
 1125-1200 3.68e-04

Immunoglobulin domain; This domain contains immunoglobulin-like domains.


Pssm-ID: 464026 [Multi-domain]  Cd Length: 79  Bit Score: 40.46  E-value: 3.68e-04
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310 1125 GYNATLSCSVRGIPKPKITWYKNKMDITneakyrmfSNQGVLTLEIRKPcpfDGGVYMCKAVNDSGeDLVECKLEV 1200
Cdd:pfam13895   14 GEPVTLTCSAPGNPPPSYTWYKDGSAIS--------SSPNFFTLSVSAE---DSGTYTCVARNGRG-GKVSNPVEL 77
IgI_L1-CAM_like cd05733
Immunoglobulin (Ig)-like domain of the L1 cell adhesion molecule (CAM) and similar proteins; ...
 1127-1190 3.78e-04

Immunoglobulin (Ig)-like domain of the L1 cell adhesion molecule (CAM) and similar proteins; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the first immunoglobulin (Ig)-like domain of the L1 cell adhesion molecule (CAM). L1 belongs to the L1 subfamily of cell adhesion molecules (CAMs) and is comprised of an extracellular region having six Ig-like domains and five fibronectin type III domains, a transmembrane region and an intracellular domain. L1 is primarily expressed in the nervous system and is involved in its development and function. L1 is associated with an X-linked recessive disorder, X-linked hydrocephalus, MASA syndrome, or spastic paraplegia type 1, that involves abnormalities of axonal growth. This group also contains NrCAM [Ng(neuronglia)CAM-related cell adhesion molecule], which is primarily expressed in the nervous system, and human neurofascin. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lacks a C" strand.


Pssm-ID: 409396 [Multi-domain]  Cd Length: 94  Bit Score: 40.85  E-value: 3.78e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1207180310 1127 NATLSCSVRGIPKPKITWYKN--KMDITNEAKYRMFSNQGVLTLEIRKPCPFD-GGVYMCKAVNDSG 1190
Cdd:cd05733     18 NITIKCEAKGNPQPTFRWTKDgkFFDPAKDPRVSMRRRSGTLVIDNHNGGPEDyQGEYQCYASNELG 84
COG4733 COG4733
Phage-related protein, tail protein J [Mobilome: prophages, transposons];
595-885 3.93e-04

Phage-related protein, tail protein J [Mobilome: prophages, transposons];


Pssm-ID: 443767 [Multi-domain]  Cd Length: 978  Bit Score: 44.94  E-value: 3.93e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  595 ILVVAGNKLRLDVPITGDPAPTVIWTKGEKDSSKEGESHPDPKNTWTMKNGEVLTDSDGRVHVESTKGHCI--FTIEGAE 672
Cdd:COG4733    418 VSSVDGRVVTLDRPVTMEAGDRYLRVRLPDGTSVARTVQSVAGRTLTVSTAYSETPEAGAVWAFGPDELETqlFRVVSIE 497

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  673 RQDEGVYSV--IVRNPAGEDTADINVKVVDVPDPPEAPRILSV---------GEDSCVVQWDAPrfdggQPVIGYVLE-R 740
Cdd:COG4733    498 ENEDGTYTItaVQHAPEKYAAIDAGAFDDVPPQWPPVNVTTSEslsvvaqgtAVTTLTVSWDAP-----AGAVAYEVEwR 572

                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  741 KKKKSYRWMRLNfdpyKETTFEAKKMIEGVpYEMRVYAVNAIGMSRPSAASQPFVPV---APTSEPIGLCVDDIsDTTIS 817
Cdd:COG4733    573 RDDGNWVSVPRT----SGTSFEVPGIYAGD-YEVRVRAINALGVSSAWAASSETTVTgktAPPPAPTGLTATGG-LGGIT 646

                          250       260       270       280       290       300
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1207180310  818 LKWRTPErigSAELEGYGVEYCKEGSDEWIPAFSGLTERTSVIIRDLPTGEKMQFRVRAYNMAGPSAP 885
Cdd:COG4733    647 LSWSFPV---DADTLRTEIRYSTTGDWASATVAQALYPGNTYTLAGLKAGQTYYYRARAVDRSGNVSA 711
IgI_1_FGFR cd04973
First immunoglobulin (Ig)-like domain of fibroblast growth factor receptor (FGFR); member of ...
 385-466 4.13e-04

First immunoglobulin (Ig)-like domain of fibroblast growth factor receptor (FGFR); member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the first immunoglobulin (Ig)-like domain of fibroblast growth factor receptor (FGFR). Fibroblast growth factors (FGFs) participate in morphogenesis, development, angiogenesis, and wound healing. These FGF-stimulated processes are mediated by four FGFR tyrosine kinases (FGRF1-4). FGFRs are comprised of an extracellular portion consisting of three Ig-like domains, a transmembrane helix, and a cytoplasmic portion having protein tyrosine kinase activity. The highly conserved Ig-like domains 2 and 3, and the linker region between D2 and D3 define a general binding site for all FGFs.


Pssm-ID: 409362  Cd Length: 94  Bit Score: 40.65  E-value: 4.13e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  385 KEPPVLIVRNLEDQMAMKGDRVEFECEVSEEGAQVKWEKDGVELTRDEsfkyRFKKDGckHVLIINDVTKEDCGHYRVKT 464
Cdd:cd04973      6 EAPPTYQISEVESYSAHPGDLLQLRCRLRDDVQSINWTKDGVQLGENN----RTRITG--EEVQIKDAVPRDSGLYACVT 79


                   ..
gi 1207180310  465 NG 466
Cdd:cd04973     80 SS 81
IgI_Twitchin_like cd20949
C-terminal immunoglobulin-like domain of the myosin-associated giant protein kinase Twitchin, ...
 489-550 6.39e-04

C-terminal immunoglobulin-like domain of the myosin-associated giant protein kinase Twitchin, and similar domains; member of the I-set IgSF domains; The members here are composed of the C-terminal immunoglobulin-like domain of the myosin-associated giant protein kinase Twitchin and similar proteins, including Caenorhabditis elegans and Aplysia californica Twitchin, Drosophila melanogaster Projectin, and similar proteins. These are very large muscle proteins containing multiple immunoglobulin (Ig)-like and fibronectin type III (FN3) domains and a single kinase domain near the C-terminus. In humans these proteins are called Titin. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The Ig-like domain of the Twitchin is a member of the I-set IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins (titin, telokin, and twitchin), the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D.


Pssm-ID: 409541 [Multi-domain]  Cd Length: 89  Bit Score: 40.01  E-value: 6.39e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1207180310  489 LTVKAKDQAVFKCEVSDENVKGI-WYKNGVEVKPDARTLITHIGRIHKLTIDDVKPEDEGDYT 550
Cdd:cd20949      9 TTVKEGQSATILCEVKGEPQPNVtWHFNGQPISASVADMSKYRILADGLLINKVTQDDTGEYT 71
IgI_4_hemolin-like cd20978
Fourth immunoglobulin (Ig)-like domain of hemolin, and similar domains; a member of the I-set ...
 383-460 7.97e-04

Fourth immunoglobulin (Ig)-like domain of hemolin, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the fourth immunoglobulin (Ig)-like domain of hemolin and similar proteins. Hemolin, an insect immunoglobulin superfamily (IgSF) member containing four Ig-like domains, is a lipopolysaccharide-binding immune protein induced during bacterial infection. Hemolin shares significant sequence similarity with the first four Ig-like domains of the transmembrane cell adhesion molecules (CAMs) of the L1 family. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The fourth Ig-like domain of hemolin is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409570 [Multi-domain]  Cd Length: 88  Bit Score: 39.68  E-value: 7.97e-04
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1207180310  383 FVKEPPVLIVRNLedqmamkGDRVEFECEVS-EEGAQVKWEKDGVELTRDeSFKYRFKKdgckHVLIINDVTKEDCGHY 460
Cdd:cd20978      3 FIQKPEKNVVVKG-------GQDVTLPCQVTgVPQPKITWLHNGKPLQGP-MERATVED----GTLTIINVQPEDTGYY 69
IgI_1_Contactin-5 cd05848
First immunoglobulin (Ig) domain of contactin-5; member of the I-set of Ig superfamily domains; ...
 1130-1190 8.79e-04

First immunoglobulin (Ig) domain of contactin-5; member of the I-set of Ig superfamily domains; The members here are composed of the first immunoglobulin (Ig) domain of the neural cell adhesion molecule contactin-5. Contactins are comprised of six Ig domains followed by four fibronectin type III (FnIII) domains, anchored to the membrane by glycosylphosphatidylinositol. The different contactins show different expression patterns in the central nervous system. In rats, a lack of contactin-5 (NB-2) results in an impairment of the neuronal activity in the auditory system. Contactin-5 is expressed specifically in the postnatal nervous system, peaking at about 3 weeks postnatal. Contactin-5 is highly expressed in the adult human brain in the occipital lobe and in the amygdala; lower levels of expression have been detected in the corpus callosum, caudate nucleus, and spinal cord. This group belongs to the I-set of IgSF domains.


Pssm-ID: 409435  Cd Length: 96  Bit Score: 39.93  E-value: 8.79e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1207180310 1130 LSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGvlTLEIRKPCPF-DGGVYMCKAVNDSG 1190
Cdd:cd05848     24 LNCEARGNPVPTYRWLRNGTEIDTESDYRYSLIDG--NLIISNPSEVkDSGRYQCLATNSIG 83
IgI_3_NCAM-1 cd05730
Third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule 1 (NCAM-1); member of ...
 917-992 8.91e-04

Third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule 1 (NCAM-1); member of the I-set of IgSF domains; The members here are composed of the third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule (NCAM-1). NCAM plays important roles in the development and regeneration of the central nervous system, in synaptogenesis and neural migration. NCAM mediates cell-cell and cell-substratum recognition and adhesion via homophilic (NCAM-NCAM), and heterophilic (NCAM-non-NCAM), interactions. NCAM is expressed as three major isoforms having different intracellular extensions. The extracellular portion of NCAM has five N-terminal Ig-like domains and two fibronectin type III domains. The double zipper adhesion complex model for NCAM homophilic binding involves Ig1, Ig2, and Ig3. By this model, Ig1 and Ig2 mediate dimerization of NCAM molecules situated on the same cell surface (cis interactions), and Ig3 domains mediate interactions between NCAM molecules expressed on the surface of opposing cells (trans interactions) through binding to the Ig1 and Ig2 domains. The adhesive ability of NCAM is modulated by the addition of polysialic acid chains to the fifth Ig-like domain.


Pssm-ID: 143207 [Multi-domain]  Cd Length: 95  Bit Score: 39.92  E-value: 8.91e-04
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310  917 VGETINLVIPFQGKPRPQVSWTKNDEPLDPKSVSIRNSDTDTILFIRRSERKDSGKYDVQVQIENVEDKASVNIQI 992
Cdd:cd05730     17 LGQSVTLACDADGFPEPTMTWTKDGEPIESGEEKYSFNEDGSEMTILDVDKLDEAEYTCIAENKAGEQEAEIHLKV 92
IgI_titin_I1-like cd20951
Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of ...
 489-549 9.27e-04

Immunoglobulin domain I1 of the titin I-band and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin domain I1 of the titin I-band and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. The two sheets are linked together by a conserved disulfide bond between B strand and F strand. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The Ig I1 domain of the titin I-band is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409543 [Multi-domain]  Cd Length: 94  Bit Score: 39.71  E-value: 9.27e-04
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 1207180310  489 LTVKAKDQAVFKCEVS---DENVKgiWYKNGVEVKPDARTLITHI---GRIHKLTIDDVKPEDEGDY 549
Cdd:cd20951     10 HTVWEKSDAKLRVEVQgkpDPEVK--WYKNGVPIDPSSIPGKYKIeseYGVHVLHIRRVTVEDSAVY 74
IgI_2_Titin_Z1z2-like cd20972
Second Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk, and ...
 300-384 9.67e-04

Second Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the second immunoglobulin (Ig)-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the titin Z1z2 lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409564 [Multi-domain]  Cd Length: 91  Bit Score: 39.49  E-value: 9.67e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  300 FLKKLDpAYQVEKGHKIKLEIEVA-NPDAEVKWLKNGQEIHPTGSKYIFESvGNKRFLTINNCSLSDDAAYMC----VVG 374
Cdd:cd20972      4 FIQKLR-SQEVAEGSKVRLECRVTgNPTPVVRWFCEGKELQNSPDIQIHQE-GDLHSLIIAEAFEEDTGRYSClatnSVG 81

                           90
                   ....*....|
gi 1207180310  375 DEKTVTELFV 384
Cdd:cd20972     82 SDTTSAEIFV 91
IgI_2_Titin_Z1z2-like cd20972
Second Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk, and ...
 597-698 1.01e-03

Second Ig-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the second immunoglobulin (Ig)-like domain of the giant muscle protein titin Z1z2 in the sarcomeric Z-disk and similar proteins. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the titin Z1z2 lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409564 [Multi-domain]  Cd Length: 91  Bit Score: 39.49  E-value: 1.01e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  597 VVAGNKLRLDVPITGDPAPTVIWTKgekdSSKEGESHPDpkntwtmkngeVLTDSDGRVHVestkghciFTIEGAERQDE 676
Cdd:cd20972     13 VAEGSKVRLECRVTGNPTPVVRWFC----EGKELQNSPD-----------IQIHQEGDLHS--------LIIAEAFEEDT 69

                           90       100
                   ....*....|....*....|..
gi 1207180310  677 GVYSVIVRNPAGEDTADINVKV 698
Cdd:cd20972     70 GRYSCLATNSVGSDTTSAEIFV 91
IgI_VEGFR-2 cd05864
Immunoglobulin (Ig)-like domain of vascular endothelial growth factor receptor 2 (VEGFR-2); ...
 903-975 1.33e-03

Immunoglobulin (Ig)-like domain of vascular endothelial growth factor receptor 2 (VEGFR-2); member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the immunoglobulin (Ig)-like domain of vascular endothelial growth factor receptor 2 (VEGFR-2). The VEGFRs have an extracellular component with seven Ig-like domains, a transmembrane segment, and an intracellular tyrosine kinase domain interrupted by a kinase-insert domain. VEGFRs bind VEGFs with high affinity at the Ig-like domains. VEGFR-2 (KDR/Flk-1) is a major mediator of the mitogenic, angiogenic and microvascular permeability-enhancing effects of VEGF-A; VEGF-A is important to the growth and maintenance of vascular endothelial cells and to the development of new blood- and lymphatic-vessels in physiological and pathological states. VEGF-A also interacts with VEGFR-1, which it binds more strongly than VEGFR-2. VEGFR-1 and VEGFR-2 may mediate a chemotactic and a survival signal in hematopoietic stem cells or leukemia cells. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409450  Cd Length: 89  Bit Score: 39.14  E-value: 1.33e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1207180310  903 IWLPRNLRQTLIKKVGETINLVIPFQGKPRPQVSWTKNDEPLDPKSVSIRNsdtdTILFIRRSERKDSGKYDV 975
Cdd:cd05864      2 IALGSGMESLVEAKVGERVRIPVKYLGYPPPEIKWYKNGIPIESNHTIKAG----HVLTIMEVTEKDAGNYTV 70
IgI_1_MuSK cd20970
agrin-responsive first immunoglobulin-like domains (Ig1) of the MuSK ectodomain; a member of ...
 912-973 1.34e-03

agrin-responsive first immunoglobulin-like domains (Ig1) of the MuSK ectodomain; a member of the I-set of IgSF domains; The members here are composed of the first immunoglobulin-like domains (Ig1) of the Muscle-specific kinase (MuSK). MuSK is a receptor tyrosine kinase specifically expressed in skeletal muscle, where it plays a central role in the formation and maintenance of the neuromuscular junction (NMJ). MuSK is activated by agrin, a neuron-derived heparan sulfate proteoglycan. The activation of MUSK in myotubes regulates the formation of NMJs through the regulation of different processes including the specific expression of genes in subsynaptic nuclei, the reorganization of the actin cytoskeleton and the clustering of the acetylcholine receptors (AChR) in the postsynaptic membrane. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the MuSK lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409562 [Multi-domain]  Cd Length: 92  Bit Score: 39.03  E-value: 1.34e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1207180310  912 TLIKKVGETINLVIPFQGKPRPQVSWTKND---EPLDpKSVSIRNSDTDtiLFIRRSERKDSGKY 973
Cdd:cd20970     11 TVTAREGENATFMCRAEGSPEPEISWTRNGnliIEFN-TRYIVRENGTT--LTIRNIRRSDMGIY 72
Ig_Pro_neuregulin cd05750
Immunoglobulin (Ig)-like domain in neuregulins; The members here are composed of the ...
 1116-1200 1.69e-03

Immunoglobulin (Ig)-like domain in neuregulins; The members here are composed of the immunoglobulin (Ig)-like domain in neuregulins (NRGs). NRGs are signaling molecules which participate in cell-cell interactions in the nervous system, breast, heart, and other organ systems, and are implicated in the pathology of diseases including schizophrenia, multiple sclerosis, and breast cancer. There are four members of the neuregulin gene family (NRG-1, NRG-2, NRG-3, and NRG-4). The NRG-1 protein, binds to and activates the tyrosine kinases receptors ErbB3 and ErbB4, initiating signaling cascades. The other NRGs proteins bind one or the other or both of these ErbBs. NRG-1 has multiple functions: in the brain it regulates various processes such as radial glia formation and neuronal migration, dendritic development, and expression of neurotransmitters receptors, while in the peripheral nervous system NRG-1 regulates processes such as target cell differentiation, and Schwann cell survival. There are many NRG-1 isoforms which arise from the alternative splicing of mRNA. Less is known of the functions of the other NRGs. NRG-2 and NRG-3 are expressed predominantly in the nervous system. NRG-2 is expressed by motor neurons and terminal Schwann cells, and is concentrated near synaptic sites and may be a signal that regulates synaptic differentiation. NRG-4 has been shown to direct pancreatic islet cell development towards the delta-cell lineage.


Pssm-ID: 409408 [Multi-domain]  Cd Length: 92  Bit Score: 39.03  E-value: 1.69e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1116 PLKSRSVIAGYNATLSC-SVRGIPKPKITWYKNKMDITN----EAKYRmfSNQGVLTLEIRKPCPFDGGVYMCKAVNDSG 1190
Cdd:cd05750      5 EMKSQTVQEGSKLVLKCeATSENPSPRYRWFKDGKELNRkrpkNIKIR--NKKKNSELQINKAKLEDSGEYTCVVENILG 82

                           90
                   ....*....|
gi 1207180310 1191 EDLVECKLEV 1200
Cdd:cd05750     83 KDTVTGNVTV 92
IgI_4_hemolin-like cd20978
Fourth immunoglobulin (Ig)-like domain of hemolin, and similar domains; a member of the I-set ...
 592-698 1.74e-03

Fourth immunoglobulin (Ig)-like domain of hemolin, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the fourth immunoglobulin (Ig)-like domain of hemolin and similar proteins. Hemolin, an insect immunoglobulin superfamily (IgSF) member containing four Ig-like domains, is a lipopolysaccharide-binding immune protein induced during bacterial infection. Hemolin shares significant sequence similarity with the first four Ig-like domains of the transmembrane cell adhesion molecules (CAMs) of the L1 family. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. The fourth Ig-like domain of hemolin is a member of the I-set Ig domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set domains, members of the I-set have a discontinuous A strand but lack a C" strand. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409570 [Multi-domain]  Cd Length: 88  Bit Score: 38.53  E-value: 1.74e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  592 ESTILVVAGNKLRLDVPITGDPAPTVIWtkgekdsskegeSHpdpkntwtmkNGEVLTDSDGRVHVEstKGhcIFTIEGA 671
Cdd:cd20978      8 EKNVVVKGGQDVTLPCQVTGVPQPKITW------------LH----------NGKPLQGPMERATVE--DG--TLTIINV 61

                           90       100
                   ....*....|....*....|....*..
gi 1207180310  672 ERQDEGVYSVIVRNPAGEDTADINVKV 698
Cdd:cd20978     62 QPEDTGYYGCVATNEIGDIYTETLLHV 88
IgI_3_Robo cd05725
Third immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of ...
 392-460 1.87e-03

Third immunoglobulin (Ig)-like domain in Robo (roundabout) receptors; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the third immunoglobulin (Ig)-like domain in Robo (roundabout) receptors. Robo receptors play a role in the development of the central nervous system (CNS), and are receptors of Slit protein. Slit is a repellant secreted by the neural cells in the midline. Slit acts through Robo to prevent most neurons from crossing the midline from either side. Three mammalian Robo homologs (Robo1, Robo2, Robo3), and three mammalian Slit homologs (Slit-1,Slit-2, Slit-3), have been identified. Commissural axons, which cross the midline, express low levels of Robo; longitudinal axons, which avoid the midline, express high levels of Robo. Robo1, Robo2, and Robo3 are expressed by commissural neurons in the vertebrate spinal cord and Slit-1, Slit-2, and Slit-3 are expressed at the ventral midline. Robo-3 is a divergent member of the Robo family which instead of being a positive regulator of Slit responsiveness, antagonizes Slit responsiveness in precrossing axons. The Slit-Robo interaction is mediated by the second leucine-rich repeat (LRR) domain of Slit and the two N-terminal Ig domains of Robo, Ig1 and Ig2. The primary Robo binding site for Slit2 has been shown by surface plasmon resonance experiments and mutational analysis to be the Ig1 domain, while the Ig2 domain has been proposed to harbor a weak secondary binding site. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409390 [Multi-domain]  Cd Length: 83  Bit Score: 38.53  E-value: 1.87e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  392 VRNLEDQMAMKGDRVEFECEVSEEGA-QVKWEKDGVELTRDesfKYRFKKDgckHVLIINDVTKEDCGHY 460
Cdd:cd05725      1 VKRPQNQVVLVDDSAEFQCEVGGDPVpTVRWRKEDGELPKG---RYEILDD---HSLKIRKVTAGDMGSY 64
Ig_Semaphorin_C cd04979
Immunoglobulin (Ig)-like domain at the C-terminus of semaphorins; The members here are ...
 1116-1187 2.04e-03

Immunoglobulin (Ig)-like domain at the C-terminus of semaphorins; The members here are composed of the immunoglobulin (Ig)-like domain in semaphorins. Semaphorins are transmembrane protein that have important roles in a variety of tissues. Functionally, semaphorins were initially characterized for their importance in the development of the nervous system and in axonal guidance. Later they have been found to be important for the formation and functioning of the cardiovascular, endocrine, gastrointestinal, hepatic, immune, musculoskeletal, renal, reproductive, and respiratory systems. Semaphorins function through binding to their receptors and transmembrane semaphorins also serves as receptors themselves. Although molecular mechanism of semaphorins is poorly understood, the Ig-like domains may be involved in ligand binding or dimerization.


Pssm-ID: 409368  Cd Length: 88  Bit Score: 38.59  E-value: 2.04e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1207180310 1116 PLKSRSVIAGYNATLSCSVRgIPKPKITWYKNKMDI--TNEAKYRMFSNQGVLtleIRKPCPFDGGVYMCKAVN 1187
Cdd:cd04979      2 SFKQISVKEGDTVILSCSVK-SNNAPVTWIHNGKKVprYRSPRLVLKTERGLL---IRSAQEADAGVYECHSGE 71
IgI_1_MuSK cd20970
agrin-responsive first immunoglobulin-like domains (Ig1) of the MuSK ectodomain; a member of ...
 309-371 2.09e-03

agrin-responsive first immunoglobulin-like domains (Ig1) of the MuSK ectodomain; a member of the I-set of IgSF domains; The members here are composed of the first immunoglobulin-like domains (Ig1) of the Muscle-specific kinase (MuSK). MuSK is a receptor tyrosine kinase specifically expressed in skeletal muscle, where it plays a central role in the formation and maintenance of the neuromuscular junction (NMJ). MuSK is activated by agrin, a neuron-derived heparan sulfate proteoglycan. The activation of MUSK in myotubes regulates the formation of NMJs through the regulation of different processes including the specific expression of genes in subsynaptic nuclei, the reorganization of the actin cytoskeleton and the clustering of the acetylcholine receptors (AChR) in the postsynaptic membrane. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the MuSK lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409562 [Multi-domain]  Cd Length: 92  Bit Score: 38.64  E-value: 2.09e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....
gi 1207180310  309 QVEKGHKIKLEIEV-ANPDAEVKWLKNGQEIHPTGSKYIFESVGnkRFLTINNCSLSDDAAYMC 371
Cdd:cd20970     13 TAREGENATFMCRAeGSPEPEISWTRNGNLIIEFNTRYIVRENG--TTLTIRNIRRSDMGIYLC 74
IgI_3_NCAM-1 cd05730
Third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule 1 (NCAM-1); member of ...
 325-372 2.14e-03

Third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule 1 (NCAM-1); member of the I-set of IgSF domains; The members here are composed of the third immunoglobulin (Ig)-like domain of Neural Cell Adhesion Molecule (NCAM-1). NCAM plays important roles in the development and regeneration of the central nervous system, in synaptogenesis and neural migration. NCAM mediates cell-cell and cell-substratum recognition and adhesion via homophilic (NCAM-NCAM), and heterophilic (NCAM-non-NCAM), interactions. NCAM is expressed as three major isoforms having different intracellular extensions. The extracellular portion of NCAM has five N-terminal Ig-like domains and two fibronectin type III domains. The double zipper adhesion complex model for NCAM homophilic binding involves Ig1, Ig2, and Ig3. By this model, Ig1 and Ig2 mediate dimerization of NCAM molecules situated on the same cell surface (cis interactions), and Ig3 domains mediate interactions between NCAM molecules expressed on the surface of opposing cells (trans interactions) through binding to the Ig1 and Ig2 domains. The adhesive ability of NCAM is modulated by the addition of polysialic acid chains to the fifth Ig-like domain.


Pssm-ID: 143207 [Multi-domain]  Cd Length: 95  Bit Score: 38.76  E-value: 2.14e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*...
gi 1207180310  325 PDAEVKWLKNGQEIHPTGSKYIFESVGNKrfLTINNCSLSDDAAYMCV 372
Cdd:cd05730     31 PEPTMTWTKDGEPIESGEEKYSFNEDGSE--MTILDVDKLDEAEYTCI 76
IgI_2_MuSK cd20968
agrin-responsive second immunoglobulin-like domains (Ig2) of the Muscle-specific kinase (MuSK) ...
 1112-1190 2.21e-03

agrin-responsive second immunoglobulin-like domains (Ig2) of the Muscle-specific kinase (MuSK) ectodomain; a member of the I-set of Ig superfamily domains; The members here are composed of the second immunoglobulin-like (Ig) domains of the Muscle-specific kinase (MuSK) ectodomain. MuSK is a receptor tyrosine kinase specifically expressed in skeletal muscle, where it plays a central role in the formation and maintenance of the neuromuscular junction (NMJ). MuSK is activated by agrin, a neuron-derived heparan sulfate proteoglycan. The activation of MUSK in myotubes regulates the formation of NMJs through the regulation of different processes including the specific expression of genes in subsynaptic nuclei, the reorganization of the actin cytoskeleton and the clustering of the acetylcholine receptors (AChR) in the postsynaptic membrane. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the MuSK lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409560 [Multi-domain]  Cd Length: 88  Bit Score: 38.38  E-value: 2.21e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 1207180310 1112 KFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQGVLTLEIRKPcpfDGGVYMCKAVNDSG 1190
Cdd:cd20968      1 KITRPPTNVTIIEGLKAVLPCTTMGNPKPSVSWIKGDDLIKENNRIAVLESGSLRIHNVQKE---DAGQYRCVAKNSLG 76
ig pfam00047
Immunoglobulin domain; Members of the immunoglobulin superfamily are found in hundreds of ...
 489-550 2.22e-03

Immunoglobulin domain; Members of the immunoglobulin superfamily are found in hundreds of proteins of different functions. Examples include antibodies, the giant muscle kinase titin and receptor tyrosine kinases. Immunoglobulin-like domains may be involved in protein-protein and protein-ligand interactions.


Pssm-ID: 395002  Cd Length: 86  Bit Score: 38.33  E-value: 2.22e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1207180310  489 LTVKAKDQAVFKCEVSDENVKGI--WYKNGvEVKPDARTLITHIGRIHK--LTIDDVKPEDEGDYT 550
Cdd:pfam00047    6 VTVLEGDSATLTCSASTGSPGPDvtWSKEG-GTLIESLKVKHDNGRTTQssLLISNVTKEDAGTYT 70
ig pfam00047
Immunoglobulin domain; Members of the immunoglobulin superfamily are found in hundreds of ...
 87-171 2.43e-03

Immunoglobulin domain; Members of the immunoglobulin superfamily are found in hundreds of proteins of different functions. Examples include antibodies, the giant muscle kinase titin and receptor tyrosine kinases. Immunoglobulin-like domains may be involved in protein-protein and protein-ligand interactions.


Pssm-ID: 395002  Cd Length: 86  Bit Score: 38.33  E-value: 2.43e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   87 PHSGEVNVGENIIFIARVcgESLLKKPTVKWFKGKwmdlasksGKHLQLKEHYDRNTKVYTFEMHIIAAKANFAGAYRCE 166
Cdd:pfam00047    3 PPTVTVLEGDSATLTCSA--STGSPGPDVTWSKEG--------GTLIESLKVKHDNGRTTQSSLLISNVTKEDAGTYTCV 72


                   ....*
gi 1207180310  167 VSSRD 171
Cdd:pfam00047   73 VNNPG 77
IgI_1_Titin-A168_like cd20971
First immunoglobulin-like domains A168 within the A-band segment of human cardiac titin, and ...
 1110-1190 2.73e-03

First immunoglobulin-like domains A168 within the A-band segment of human cardiac titin, and similar domains; a member of the I-set of IgSF domains; The members here are composed of the first immunoglobulin-like domain A168 within the A-band segment of human cardiac titin. Titin is a key component in the assembly and functioning of vertebrate striated muscles. By providing connections at the level of individual microfilaments, it contributes to the fine balance of forces between the two halves of the sarcomere. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structures of the titin-A168169 lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409563  Cd Length: 93  Bit Score: 38.22  E-value: 2.73e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1110 APKFTHPLKSRSVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQ-GVLTLEIRK-PCPFDGGVYMCKAVN 1187
Cdd:cd20971      1 APHFKEELRNLNVRYQSNATLVCKVTGHPKPIVKWYRQGKEIIADGLKYRIQEFkGGYHQLIIAsVTDDDATVYQVRATN 80


                   ...
gi 1207180310 1188 DSG 1190
Cdd:cd20971     81 QGG 83
Ig_Pro_neuregulin cd05750
Immunoglobulin (Ig)-like domain in neuregulins; The members here are composed of the ...
 392-460 2.73e-03

Immunoglobulin (Ig)-like domain in neuregulins; The members here are composed of the immunoglobulin (Ig)-like domain in neuregulins (NRGs). NRGs are signaling molecules which participate in cell-cell interactions in the nervous system, breast, heart, and other organ systems, and are implicated in the pathology of diseases including schizophrenia, multiple sclerosis, and breast cancer. There are four members of the neuregulin gene family (NRG-1, NRG-2, NRG-3, and NRG-4). The NRG-1 protein, binds to and activates the tyrosine kinases receptors ErbB3 and ErbB4, initiating signaling cascades. The other NRGs proteins bind one or the other or both of these ErbBs. NRG-1 has multiple functions: in the brain it regulates various processes such as radial glia formation and neuronal migration, dendritic development, and expression of neurotransmitters receptors, while in the peripheral nervous system NRG-1 regulates processes such as target cell differentiation, and Schwann cell survival. There are many NRG-1 isoforms which arise from the alternative splicing of mRNA. Less is known of the functions of the other NRGs. NRG-2 and NRG-3 are expressed predominantly in the nervous system. NRG-2 is expressed by motor neurons and terminal Schwann cells, and is concentrated near synaptic sites and may be a signal that regulates synaptic differentiation. NRG-4 has been shown to direct pancreatic islet cell development towards the delta-cell lineage.


Pssm-ID: 409408 [Multi-domain]  Cd Length: 92  Bit Score: 38.26  E-value: 2.73e-03
                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 1207180310  392 VRNLEDQMAMKGDRVEFECEVSEEGAQV--KWEKDGVELTR--DESFKYRFKKDGCKhvLIINDVTKEDCGHY 460
Cdd:cd05750      3 LKEMKSQTVQEGSKLVLKCEATSENPSPryRWFKDGKELNRkrPKNIKIRNKKKNSE--LQINKAKLEDSGEY 73
Ig_3 pfam13927
Immunoglobulin domain; This family contains immunoglobulin-like domains.
 83-168 3.08e-03

Immunoglobulin domain; This family contains immunoglobulin-like domains.


Pssm-ID: 464046 [Multi-domain]  Cd Length: 78  Bit Score: 37.55  E-value: 3.08e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310   83 FTEKPHSGEVNVGENIIFIARVCGESllkKPTVKWFKGkwmdlasksGKHLQLKEHYDRNTKVYTFEMHIIAAKANFAGA 162
Cdd:pfam13927    4 ITVSPSSVTVREGETVTLTCEATGSP---PPTITWYKN---------GEPISSGSTRSRSLSGSNSTLTISNVTRSDAGT 71


                   ....*.
gi 1207180310  163 YRCEVS 168
Cdd:pfam13927   72 YTCVAS 77
IgI_1_Contactin cd04967
First immunoglobulin (Ig) domain of contactin; member of the I-set of (Ig) superfamily domains; ...
 1129-1190 3.11e-03

First immunoglobulin (Ig) domain of contactin; member of the I-set of (Ig) superfamily domains; The members here are composed of the first immunoglobulin (Ig) domain of contactins. Contactins are neural cell adhesion molecules and are comprised of six Ig domains followed by four fibronectin type III (FnIII) domains anchored to the membrane by glycosylphosphatidylinositol. The first four Ig domains form the intermolecular binding fragment, which arranges as a compact U-shaped module via contacts between Ig domains 1 and 4, and between Ig domains 2 and 3. Contactin-2 (TAG-1, axonin-1) may play a part in the neuronal processes of neurite outgrowth, axon guidance and fasciculation, and neuronal migration. This group also includes contactin-1 and contactin-5. The different contactins show different expression patterns in the central nervous system. During development and in adulthood, contactin-2 is transiently expressed in subsets of central and peripheral neurons. Contactin-5 is expressed specifically in the rat postnatal nervous system, peaking at about 3 weeks postnatal, and a lack of contactin-5 (NB-2) results in an impairment of neuronal activity in the rat auditory system. Contactin-5 is highly expressed in the adult human brain in the occipital lobe and in the amygdala. Contactin-1 is differentially expressed in tumor tissues and may, through a RhoA mechanism, facilitate invasion and metastasis of human lung adenocarcinoma. This group belongs to the I-set of IgSF domains.


Pssm-ID: 409356 [Multi-domain]  Cd Length: 96  Bit Score: 38.38  E-value: 3.11e-03
                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1207180310 1129 TLSCSVRGIPKPKITWYKN--KMDITNEAKYRMFSNqgvlTLEIRKPCPF-DGGVYMCKAVNDSG 1190
Cdd:cd04967     23 ALNCRARANPVPSYRWLMNgtEIDLESDYRYSLVDG----TLVISNPSKAkDAGHYQCLATNTVG 83
IgI_8_hMLCK_like cd05762
Eighth immunoglobulin (Ig)-like domain of human myosin light-chain kinase (MLCK) and similar ...
 918-999 3.22e-03

Eighth immunoglobulin (Ig)-like domain of human myosin light-chain kinase (MLCK) and similar protein; member of the I-set of IgSF domains; The members here are composed of the eighth immunoglobulin (Ig)-like domain of human myosin light-chain kinase (MLCK) and similar proteins. Myosin light-chain kinase (MLCK) is a key regulator of different forms of cell motility involving actin and myosin II. Agonist stimulation of smooth muscle cells increases cytosolic Ca2+ which binds calmodulin. This Ca2+-calmodulin complex in turn binds to and activates MLCK. Activated MLCK leads to the phosphorylation of the 20 kDa myosin regulatory light chain (RLC) of myosin II and the stimulation of actin-activated myosin MgATPase activity. MLCK is widely present in vertebrate tissues; it phosphorylates the 20 kDa RLC of both smooth and nonmuscle myosin II. Phosphorylation leads to the activation of the myosin motor domain and altered structural properties of myosin II. In smooth muscle MLCK it is involved in initiating contraction. In nonmuscle cells, MLCK may participate in cell division and cell motility; it has been suggested MLCK plays a role in cardiomyocyte differentiation and contraction through regulation of nonmuscle myosin II.


Pssm-ID: 409419  Cd Length: 99  Bit Score: 38.40  E-value: 3.22e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  918 GETINLVIPFQGKPRPQVSWTKNDEPL-DPKSVSIRNSDTDTILFIRRSERKDSGKYDVQVQIENVEDKASVNIQIVDVP 996
Cdd:cd05762     16 GESVELFCKVTGTQPITCTWMKFRKQIqEGEGIKIENTENSSKLTITEGQQEHCGCYTLEVENKLGSRQAQVNLTVVDKP 95


                   ...
gi 1207180310  997 GPP 999
Cdd:cd05762     96 DPP 98
IgI_telokin-like cd20973
immunoglobulin-like domain of telokin and similar proteins; a member of the I-set of IgSF ...
 597-698 3.81e-03

immunoglobulin-like domain of telokin and similar proteins; a member of the I-set of IgSF domains; The members here are composed of the immunoglobulin (Ig) domain in telokin, the C-terminal domain of myosin light chain kinase which is identical to telokin, and similar proteins. The Ig superfamily (IgSF) is a heterogenous group of proteins, built on a common fold comprised of a sandwich of two beta sheets. IgSF domains can be divided into 4 main classes based on their structures and sequences: the Variable (V), Constant 1 (C1), Constant 2 (C2), and Intermediate (I) sets. Unlike the V-set, one of the distinctive features of I-set domains is the lack of a C" strand. The structure of the telokin Ig domain lacks this strand and thus it belongs to the I-set of the IgSF. I-set domains are found in several cell adhesion molecules (such as VCAM, ICAM, and MADCAM), and are also present in numerous other diverse protein families, including several tyrosine-protein kinase receptors, the hemolymph protein hemolin, the muscle proteins titin, telokin, and twitchin, the neuronal adhesion molecule axonin-1, and the signaling molecule semaphorin 4D that is involved in axonal guidance, immune function and angiogenesis.


Pssm-ID: 409565 [Multi-domain]  Cd Length: 88  Bit Score: 37.94  E-value: 3.81e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310  597 VVAGNKLRLDVPITGDPAPTVIWtkgekdsskegeshpdpkntwtMKNGEVLTDSDGRVHVESTKGHCIFTIEGAERQDE 676
Cdd:cd20973      9 VVEGSAARFDCKVEGYPDPEVKW----------------------MKDDNPIVESRRFQIDQDEDGLCSLIISDVCGDDS 66

                           90       100
                   ....*....|....*....|..
gi 1207180310  677 GVYSVIVRNPAGEDTADINVKV 698
Cdd:cd20973     67 GKYTCKAVNSLGEATCSAELTV 88
IgI_M-protein_C cd05891
C-terminal immunoglobulin (Ig)-like domain of M-protein; member of the I-set of Ig superfamily ...
 1121-1200 4.44e-03

C-terminal immunoglobulin (Ig)-like domain of M-protein; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the C-terminal immunoglobulin (Ig)-like domain of M-protein (also known as myomesin-2). M-protein is a structural protein localized to the M-band, a transverse structure in the center of the sarcomere, and is a candidate for M-band bridges. M-protein is modular consisting mainly of repetitive IG-like and fibronectin type III (FnIII) domains and has a muscle-type specific expression pattern. M-protein is present in fast fibers.


Pssm-ID: 143299  Cd Length: 92  Bit Score: 37.58  E-value: 4.44e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1121 SVIAGYNATLSCSVRGIPKPKITWYKNKMDITNEAKYRMFSNQG-VLTLEIRKPCPFDGGVYMCKAVNDSGEDLVECKLE 1199
Cdd:cd05891     12 TIMEGKTLNLTCTVFGNPDPEVIWFKNDQDIELSEHYSVKLEQGkYASLTIKGVTSEDSGKYSINVKNKYGGETVDVTVS 91


                   .
gi 1207180310 1200 V 1200
Cdd:cd05891     92 V 92
IgI_3_Contactin cd04968
Third immunoglobulin (Ig) domain of contactin; member of the I-set of Ig superfamily (IgSF) ...
 1118-1200 5.11e-03

Third immunoglobulin (Ig) domain of contactin; member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the third immunoglobulin (Ig) domain of contactins. Contactins are neural cell adhesion molecules and are comprised of six Ig domains followed by four fibronectin type III (FnIII) domains anchored to the membrane by glycosylphosphatidylinositol. The first four Ig domains form the intermolecular binding fragment, which arranges as a compact U-shaped module via contacts between Ig domains 1 and 4, and between Ig domains 2 and 3. Contactin-2 (TAG-1, axonin-1) may play a part in the neuronal processes of neurite outgrowth, axon guidance and fasciculation, and neuronal migration. This group also includes contactin-1 and contactin-5. The different contactins show different expression patterns in the central nervous system. During development and in adulthood, contactin-2 is transiently expressed in subsets of central and peripheral neurons. Contactin-5 is expressed specifically in the rat postnatal nervous system, peaking at about 3 weeks postnatal, and a lack of contactin-5 (NB-2) results in an impairment of neuronal activity in the rat auditory system. Contactin-5 is highly expressed in the adult human brain in the occipital lobe and in the amygdala. Contactin-1 is differentially expressed in tumor tissues and may, through a RhoA mechanism, facilitate invasion and metastasis of human lung adenocarcinoma. This group belongs to the I-set of IgSF domains.


Pssm-ID: 409357 [Multi-domain]  Cd Length: 88  Bit Score: 37.53  E-value: 5.11e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1118 KSRSVIAGYNATLSCSVRGIPKPKITWykNKMDITNEAKYRMFSNQGVltLEIRKPCPFDGGVYMCKAVNDSGEDLVECK 1197
Cdd:cd04968      9 ADTYALKGQTVTLECFALGNPVPQIKW--RKVDGSPSSQWEITTSEPV--LEIPNVQFEDEGTYECEAENSRGKDTVQGR 84


                   ...
gi 1207180310 1198 LEV 1200
Cdd:cd04968     85 IIV 87
Ig_Pro_neuregulin-1 cd05895
Immunoglobulin (Ig)-like domain found in neuregulin (NRG)-1; The members here are composed of ...
 1117-1194 5.11e-03

Immunoglobulin (Ig)-like domain found in neuregulin (NRG)-1; The members here are composed of the immunoglobulin (Ig)-like domain found in neuregulin (NRG)-1. There are many NRG-1 isoforms which arise from the alternative splicing of mRNA. NRG-1 belongs to the neuregulin gene family which is comprised of four genes. This group represents NRG-1. NRGs are signaling molecules which participate in cell-cell interactions in the nervous system, breast, and heart, and other organ systems, and are implicated in the pathology of diseases including schizophrenia, multiple sclerosis, and breast cancer. The NRG-1 protein binds to and activates the tyrosine kinases receptors ErbB3 and ErbB4, initiating signaling cascades. NRG-1 has multiple functions, for example, in the brain it regulates various processes such as radial glia formation and neuronal migration, dendritic development, and expression of neurotransmitters receptors in the peripheral nervous system NRG-1 regulates processes such as target cell differentiation, and Schwann cell survival.


Pssm-ID: 409476  Cd Length: 93  Bit Score: 37.66  E-value: 5.11e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1117 LKSRSVIAGYNATLSC-SVRGIPKPKITWYKNKMDITNEAK---YRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSGED 1192
Cdd:cd05895      6 MKSQEVAAGSKLVLRCeTSSEYPSLRFKWFKNGKEINRKNKpenIKIQKKKKKSELRINKASLADSGEYMCKVSSKLGND 85


                   ..
gi 1207180310 1193 LV 1194
Cdd:cd05895     86 SA 87
IgI_VEGFR cd04976
Immunoglobulin (Ig)-like domain of vascular endothelial growth factor receptor (VEGFR); member ...
 418-462 5.37e-03

Immunoglobulin (Ig)-like domain of vascular endothelial growth factor receptor (VEGFR); member of the I-set of Ig superfamily (IgSF) domains; The members here are composed of the immunoglobulin (Ig)-like domain of vascular endothelial growth factor receptor (VEGFR). The VEGFRs have an extracellular component with seven Ig-like domains, a transmembrane segment, and an intracellular tyrosine kinase domain interrupted by a kinase-insert domain. The VEGFR family consists of three members, VEGFR-1 (Flt-1), VEGFR-2 (KDR/Flk-1), and VEGFR-3 (Flt-4). VEGFRs bind VEGFs with high affinity at the Ig-like domains. VEGF-A is important to the growth and maintenance of vascular endothelial cells and to the development of new blood- and lymphatic-vessels in physiological and pathological states. VEGFR-2 is a major mediator of the mitogenic, angiogenic, and microvascular permeability-enhancing effects of VEGF-A. VEGFR-1 may play an inhibitory part in these processes by binding VEGF and interfering with its interaction with VEGFR-2. VEGFR-1 has a signaling role in mediating monocyte chemotaxis. VEGFR-1 and VEGFR-2 may mediate a chemotactic and a survival signal in hematopoietic stem cells or leukemia cells. VEGFR-3 has been shown to be involved in tumor angiogenesis and growth. This group belongs to the I-set of IgSF domains, having A-B-E-D strands in one beta-sheet and A'-G-F-C-C' in the other. Like the V-set Ig domains, members of the I-set have a discontinuous A strand, but lack a C" strand.


Pssm-ID: 409365  Cd Length: 90  Bit Score: 37.58  E-value: 5.37e-03
                           10        20        30        40
                   ....*....|....*....|....*....|....*....|....*
gi 1207180310  418 QVKWEKDGVELTRDESFKYRfkkdgckHVLIINDVTKEDCGHYRV 462
Cdd:cd04976     34 EVVWYKDGLPLTEKARYLTR-------HSLIIKEVTEEDTGNYTI 71
Ig_C5_MyBP-C cd05894
C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C); The members here ...
 1122-1200 5.82e-03

C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C); The members here are composed of the C5 immunoglobulin (Ig) domain of cardiac myosin binding protein C (MyBP-C). MyBP-C consists of repeated domains, Ig and fibronectin type 3, and various linkers. Three isoforms of MYBP-C exist: slow-skeletal (ssMyBP-C), fast-skeletal (fsMyBP-C), and cardiac (cMyBP-C). cMYBP-C has insertions between and inside domains and an additional cardiac-specific Ig domain at the N-terminus. For cMYBP_C an interaction has been demonstrated between this C5 domain and the Ig C8 domain.


Pssm-ID: 409475  Cd Length: 86  Bit Score: 37.13  E-value: 5.82e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1207180310 1122 VIAGYNATLSCSVRGIPKPKITWYK-NKMDITNEAKYRMFSNQGVLTLEIRKPCPFDGGVYMCKAVNDSGEDLVECKLEV 1200
Cdd:cd05894      7 VVAGNKLRLDVPISGEPAPTVTWSRgDKAFTATEGRVRVESYKDLSSFVIEGAEREDEGVYTITVTNPVGEDHASLFVKV 86
 
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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