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Conserved domains on  [gi|586798186|ref|NP_001276992|]
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semaphorin-3B isoform 4 [Homo sapiens]

Protein Classification

semaphorin( domain architecture ID 10336824)

semaphorin, containing Sema, PSI, and Ig domains, is a regulatory molecule that functions in the development of the nervous system and in axonal guidance; similar to Bos taurus semaphorin-4A, the cell surface receptor for plexins PLXNB1, PLXNB2, PLXNB3 and PLXND1, that plays an important role in cell-cell signaling

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
Sema super family cl15693
The Sema domain, a protein interacting module, of semaphorins and plexins; Both semaphorins ...
1-173 2.16e-127

The Sema domain, a protein interacting module, of semaphorins and plexins; Both semaphorins and plexins have a Sema domain on their N-termini. Plexins function as receptors for the semaphorins. Evolutionarily, plexins may be the ancestor of semaphorins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems, and cancer. Semaphorins can be divided into 7 classes. Vertebrates have members in classes 3-7, whereas classes 1 and 2 are known only in invertebrates. Class 2 and 3 semaphorins are secreted; classes 1 and 4 through 6 are transmembrane proteins; and class 7 is membrane associated via glycosylphosphatidylinositol (GPI) linkage. Plexins are a large family of transmembrane proteins, which are divided into four types (A-D) according to sequence similarity. In vertebrates, type A plexins serve as co-receptors for neuropilins to mediate the signalling of class 3 semaphorins. Plexins serve as direct receptors for several other members of the semaphorin family: class 6 semaphorins signal through type A plexins and class 4 semaphorins through type B plexins. This family also includes the MET and RON receptor tyrosine kinases. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves to recognize and bind receptors.


The actual alignment was detected with superfamily member cd11250:

Pssm-ID: 472829 [Multi-domain]  Cd Length: 471  Bit Score: 375.40  E-value: 2.16e-127
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFGTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFLQ 80
Cdd:cd11250  299 MNDVRRAFLGPFAHKEGPNYQWVSYQGKVPYPRPGMCPSKTFGSFESTKDFPDDVIQFARNHPLMFNPVLPLGGRPLFLR 378
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  81 VGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRPSAEGLLLEELHVFEDSAAVTSMQISSKRHQLYVA 160
Cdd:cd11250  379 TGIPYTFTQIAVDRVAAADGHYDVMFIGTDVGSVLKVISVPKGSWPSNEELLLEELHVFKDSSPITSMQISSKRQQLYVG 458
                        170
                 ....*....|...
gi 586798186 161 SRSAVAQIALHRC 173
Cdd:cd11250  459 SRSGVSQLPLHRC 471
Ig super family cl11960
Immunoglobulin domain; The members here are composed of the immunoglobulin (Ig) domain found ...
231-322 8.67e-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 cd05871:

Pssm-ID: 472250  Cd Length: 92  Bit Score: 118.60  E-value: 8.67e-33
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186 231 ALLEHKVFGVEGSSAFLECEPRSLQARVEWTFQRAGVTAHTQVLAEERTERTARGLLLRRLRRRDSGVYLCAAVEQGFTQ 310
Cdd:cd05871    1 NAEEKVVYGVEGNSTFLECLPKSPQATVKWLFQRGGDQRKEEVKSEERLIVTDRGLLLRSLQRSDAGVYTCQAVEHGFSQ 80
                         90
                 ....*....|..
gi 586798186 311 PLRRLSLHVLSA 322
Cdd:cd05871   81 TLVKIRLHVIEP 92
PSI smart00423
domain found in Plexins, Semaphorins and Integrins;
172-208 1.11e-05

domain found in Plexins, Semaphorins and Integrins;


:

Pssm-ID: 214655 [Multi-domain]  Cd Length: 47  Bit Score: 42.15  E-value: 1.11e-05
                           10        20        30
                   ....*....|....*....|....*....|....*....
gi 586798186   172 RCAAHGRvCTECCLARDPYCAWDGV--ACTRFQPSAKRR 208
Cdd:smart00423   1 RCSKYTS-CSECLLARDPYCAWCSSqgRCTSGERCDSRR 38
 
Name Accession Description Interval E-value
Sema_3B cd11250
The Sema domain, a protein interacting module, of semaphorin 3B (Sema3B); Sema3B is ...
1-173 2.16e-127

The Sema domain, a protein interacting module, of semaphorin 3B (Sema3B); Sema3B is coexpressed with semaphorin 3F and both proteins are candidate tumor suppressors. Both Sema3B and Sema3F show high levels of expression in normal tissues and low-grade tumors but are down-regulated in highly metastatic tumors in the lung, melanoma cells, bladder carcinoma cells and prostate carcinoma. They are upregulated by estrogen and inhibit cell motility and invasiveness through decreased FAK phosphorylation and inhibition of MMP-2 and MMP-9 expression. Two receptor families, the neuropilins (NP) and plexins, have been implicated in mediating the actions of semaphorins 3B and 3F. Sema3B is a member of the class 3 semaphorin family of proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200511 [Multi-domain]  Cd Length: 471  Bit Score: 375.40  E-value: 2.16e-127
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFGTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFLQ 80
Cdd:cd11250  299 MNDVRRAFLGPFAHKEGPNYQWVSYQGKVPYPRPGMCPSKTFGSFESTKDFPDDVIQFARNHPLMFNPVLPLGGRPLFLR 378
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  81 VGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRPSAEGLLLEELHVFEDSAAVTSMQISSKRHQLYVA 160
Cdd:cd11250  379 TGIPYTFTQIAVDRVAAADGHYDVMFIGTDVGSVLKVISVPKGSWPSNEELLLEELHVFKDSSPITSMQISSKRQQLYVG 458
                        170
                 ....*....|...
gi 586798186 161 SRSAVAQIALHRC 173
Cdd:cd11250  459 SRSGVSQLPLHRC 471
Sema pfam01403
Sema domain; The Sema domain occurs in semaphorins, which are a large family of secreted and ...
1-152 1.70e-63

Sema domain; The Sema domain occurs in semaphorins, which are a large family of secreted and transmembrane proteins, some of which function as repellent signals during axon guidance. Sema domains also occur in the hepatocyte growth factor receptor and Swiss:P51805


Pssm-ID: 460197 [Multi-domain]  Cd Length: 180  Bit Score: 201.73  E-value: 1.70e-63
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186    1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFGtfsstKDFPDDVIQFARNHPLMYNSVLPTGGRPLFlq 80
Cdd:pfam01403  41 LSDINAVFEGPFKEQEKSDSKWLPYTGKVPYPRPGTCINDPLR-----LDLPDSVLNFVKDHPLMDEAVQPVGGRPLL-- 113
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 586798186   81 VGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGsrpsaEGLLLEELHVFEDSAAVTSMQISS 152
Cdd:pfam01403 114 VRTGVRLTSIAVDRVQALDGNYTVLFLGTDDGRLHKVVLVGSE-----ESHIIEEIQVFPEPQPVLNLLLSS 180
Sema smart00630
semaphorin domain;
1-145 5.41e-47

semaphorin domain;


Pssm-ID: 214747 [Multi-domain]  Cd Length: 390  Bit Score: 165.23  E-value: 5.41e-47
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186     1 MNDVRRAFLGPFAHKEGPMHQWVSY-QGRVPYPRPGMCPSKTFgtfsSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFL 79
Cdd:smart00630 251 LSDINAVFNGPFKECETSTSQWLPYsRGKVPYPRPGTCPNKPP----SSKDLPDETLNFIKSHPLMDEVVQPLTGRPLFV 326
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 586798186    80 QVGANYTFTQIAADRVaAADGHYDVLFIGTDVGTVLKVISVPkgSRPSAEGLLLEELHVFEDSAAV 145
Cdd:smart00630 327 KTDSNYLLTSIAVDRV-ATDGNYTVLFLGTSDGRILKVVLSE--SSSSSESVVLEEISVFPDGSPI 389
Ig_Sema3 cd05871
Immunoglobulin (Ig)-like domain of class III semaphorin Sema3; The members here are composed ...
231-322 8.67e-33

Immunoglobulin (Ig)-like domain of class III semaphorin Sema3; The members here are composed of the immunoglobulin (Ig)-like domain of Sema3 and similar proteins. Semaphorins are classified based on structural features additional to the Sema domain. Sema3 is a Class III semaphorin that is secreted. It is a vertebrate class having a Sema domain, an Ig domain, a short basic domain. They have been shown to be axonal guidance cues and have a part in the regulation of the cardiovascular, immune, and respiratory systems. Sema3A, the prototype member of this class III subfamily, induces growth cone collapse and is an inhibitor of axonal sprouting. In perinatal rat cortex, it acts as a chemoattractant and functions to direct the orientated extension of apical dendrites. It may play a role, prior to the development of apical dendrites, in signaling the radial migration of newborn cortical neurons towards the upper layers. Sema3A selectively inhibits vascular endothelial growth factor receptor (VEGF)-induced angiogenesis and induces microvascular permeability. This group also includes Sema3B, -C, -D, -E, -G.


Pssm-ID: 409455  Cd Length: 92  Bit Score: 118.60  E-value: 8.67e-33
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186 231 ALLEHKVFGVEGSSAFLECEPRSLQARVEWTFQRAGVTAHTQVLAEERTERTARGLLLRRLRRRDSGVYLCAAVEQGFTQ 310
Cdd:cd05871    1 NAEEKVVYGVEGNSTFLECLPKSPQATVKWLFQRGGDQRKEEVKSEERLIVTDRGLLLRSLQRSDAGVYTCQAVEHGFSQ 80
                         90
                 ....*....|..
gi 586798186 311 PLRRLSLHVLSA 322
Cdd:cd05871   81 TLVKIRLHVIEP 92
PSI smart00423
domain found in Plexins, Semaphorins and Integrins;
172-208 1.11e-05

domain found in Plexins, Semaphorins and Integrins;


Pssm-ID: 214655 [Multi-domain]  Cd Length: 47  Bit Score: 42.15  E-value: 1.11e-05
                           10        20        30
                   ....*....|....*....|....*....|....*....
gi 586798186   172 RCAAHGRvCTECCLARDPYCAWDGV--ACTRFQPSAKRR 208
Cdd:smart00423   1 RCSKYTS-CSECLLARDPYCAWCSSqgRCTSGERCDSRR 38
PSI pfam01437
Plexin repeat; A cysteine rich repeat found in several different extracellular receptors. The ...
172-202 2.33e-03

Plexin repeat; A cysteine rich repeat found in several different extracellular receptors. The function of the repeat is unknown. Three copies of the repeat are found Plexin. Two copies of the repeat are found in mahogany protein. A related C. elegans protein contains four copies of the repeat. The Met receptor contains a single copy of the repeat. The Pfam alignment shows 6 conserved cysteine residues that may form three conserved disulphide bridges, whereas some members show 8 conserved cysteines. The pattern of conservation suggests that cysteines 5 and 7 (that are not absolutely conserved) form a disulphide bridge (Personal observation. A Bateman).


Pssm-ID: 396154 [Multi-domain]  Cd Length: 52  Bit Score: 35.76  E-value: 2.33e-03
                          10        20        30
                  ....*....|....*....|....*....|...
gi 586798186  172 RCAAHGRvCTECCLARDPYCAWDGV--ACTRFQ 202
Cdd:pfam01437   1 RCSQYTS-CSSCLAARDPYCGWCSSegRCVRRS 32
 
Name Accession Description Interval E-value
Sema_3B cd11250
The Sema domain, a protein interacting module, of semaphorin 3B (Sema3B); Sema3B is ...
1-173 2.16e-127

The Sema domain, a protein interacting module, of semaphorin 3B (Sema3B); Sema3B is coexpressed with semaphorin 3F and both proteins are candidate tumor suppressors. Both Sema3B and Sema3F show high levels of expression in normal tissues and low-grade tumors but are down-regulated in highly metastatic tumors in the lung, melanoma cells, bladder carcinoma cells and prostate carcinoma. They are upregulated by estrogen and inhibit cell motility and invasiveness through decreased FAK phosphorylation and inhibition of MMP-2 and MMP-9 expression. Two receptor families, the neuropilins (NP) and plexins, have been implicated in mediating the actions of semaphorins 3B and 3F. Sema3B is a member of the class 3 semaphorin family of proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200511 [Multi-domain]  Cd Length: 471  Bit Score: 375.40  E-value: 2.16e-127
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFGTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFLQ 80
Cdd:cd11250  299 MNDVRRAFLGPFAHKEGPNYQWVSYQGKVPYPRPGMCPSKTFGSFESTKDFPDDVIQFARNHPLMFNPVLPLGGRPLFLR 378
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  81 VGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRPSAEGLLLEELHVFEDSAAVTSMQISSKRHQLYVA 160
Cdd:cd11250  379 TGIPYTFTQIAVDRVAAADGHYDVMFIGTDVGSVLKVISVPKGSWPSNEELLLEELHVFKDSSPITSMQISSKRQQLYVG 458
                        170
                 ....*....|...
gi 586798186 161 SRSAVAQIALHRC 173
Cdd:cd11250  459 SRSGVSQLPLHRC 471
Sema_3 cd11239
The Sema domain, a protein interacting module, of class 3 semaphorins; Class 3 semaphorins ...
1-173 4.22e-105

The Sema domain, a protein interacting module, of class 3 semaphorins; Class 3 semaphorins (Sema3s) are secreted regulator molecules involved in the development of the nervous system, vasculogenesis, angiogenesis,and tumorigenesis. There are 7 distinct subfamilies named Sema3A to 3G. Sema3s function as repellent signals during axon guidance by repelling neurons away from the source of Sema3s. However, Sema3s that are secreted by tumor cells play an inhibitory role in tumor growth and angiogenesis (specifically Sema3B and Sema3F). Sema3s functions by forming complexes with neuropilins and A-type plexins, where neuropilins serve as the ligand binding moiety and the plexins function as signal transduction component. Sema3s primarily inhibit the cell motility and migration of tumor and endothelial cells by inducing collapse of the actin cytoskeleton via neuropilins and plexins. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200500 [Multi-domain]  Cd Length: 471  Bit Score: 318.54  E-value: 4.22e-105
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFG-TFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFL 79
Cdd:cd11239  299 MADIRAAFNGPFAHKEGPNYQWVEYQGKVPYPRPGTCPSKTYGpLYKSTKDFPDDVISFARSHPLMYNPVYPLHGRPLLI 378
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  80 QVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRpSAEGLLLEELHVFEDSAAVTSMQISSKRHQLYV 159
Cdd:cd11239  379 RTNVPYRLTQIAVDRVEAEDGQYDVLFIGTDSGTVLKVVSLPKENW-EMEEVILEELQVFKHPSPITSMEISSKRQQLYV 457
                        170
                 ....*....|....
gi 586798186 160 ASRSAVAQIALHRC 173
Cdd:cd11239  458 GSAEGVVQLPLHRC 471
Sema_3A cd11249
The Sema domain, a protein interacting module, of semaphorin 3A (Sema3A); Sema3A has been ...
1-173 1.08e-86

The Sema domain, a protein interacting module, of semaphorin 3A (Sema3A); Sema3A has been reported to inhibit the growth of certain experimental tumors and to regulate endothelial cell migration and apoptosis in vitro, as well as arteriogenesis in the muscle, skin vessel permeability, and tumor angiogenesis in vivo. The function of Sema3A is mediated through receptors neuropilin-1 (NP1) and plexins, although little is known about the requirement of specific plexins in its receptor complex. It is known however that Plexin-A4 is the receptor for Sema3A in the Toll-like receptor- and sepsis-induced cytokine storm during immune response. Sema3A is a member of the Class 3 semaphorin family of secreted proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200510 [Multi-domain]  Cd Length: 493  Bit Score: 271.87  E-value: 1.08e-86
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFGTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFLQ 80
Cdd:cd11249  320 MTDIRRVFLGPYAHRDGPNYQWVPFQGRVPYPRPGTCPSKTFGGFDSTKDLPDDVITFARSHPAMYNPVFPINNRPIIIK 399
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  81 VGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRPSAEGLLLEELHVFEDSAAVTSMQISSKRHQLYVA 160
Cdd:cd11249  400 TDVDYQFTQIVVDRVEAEDGQYDVMFIGTDMGTVLKVVSIPKETWHDLEEVLLEEMTVFREPTAISAMELSTKQQQLYIG 479
                        170
                 ....*....|...
gi 586798186 161 SRSAVAQIALHRC 173
Cdd:cd11249  480 SAIGVSQLPLHRC 492
Sema_3F cd11254
The Sema domain, a protein interacting module, of semaphorin 3F (Sema3F); Sema3F is ...
1-173 1.27e-78

The Sema domain, a protein interacting module, of semaphorin 3F (Sema3F); Sema3F is coexpressed with semaphorin3B. Both Sema3B and Sema3F proteins are candidate tumor suppressors that are down-regulated in highly metastatic tumors. Two receptor families, the neuropilins and plexins, have been implicated in mediating the actions of semaphorins 3B and 3F. Sema3F is a member of the class 3 semaphorin family of proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200515 [Multi-domain]  Cd Length: 470  Bit Score: 250.51  E-value: 1.27e-78
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFG-TFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFL 79
Cdd:cd11254  298 MADIRMVFNGPFAHKEGPNYQWMPYTGKIPYPRPGTCPGGTFTpSMKSTKDYPDEVINFMRTHPLMYNAVYPVHRRPLVV 377
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  80 QVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRpSAEGLLLEELHVFEDSAAVTSMQISSKRHQLYV 159
Cdd:cd11254  378 RTNVNYRFTTIAVDQVDAADGRYEVLFLGTDRGTVQKVIVLPKDDL-ETEELTLEEVEVFKVPAPIKTMKISSKRQQLYV 456
                        170
                 ....*....|....
gi 586798186 160 ASRSAVAQIALHRC 173
Cdd:cd11254  457 SSAVGVTHLSLHRC 470
Sema_3D cd11252
The Sema domain, a protein interacting module, of semaphorin 3D (Sema3D); Sema3D is a secreted ...
1-173 2.81e-77

The Sema domain, a protein interacting module, of semaphorin 3D (Sema3D); Sema3D is a secreted semaphorin expressed during the development of the nervous system. In zebrafish, Sema3D is expressed in the ventral tectum. It guides retinal axons along the dorsoventral axis of the tectum and guides the laterality of retinal ganglion cell (RGC) projections. Both Sema3D knockdown or its ubiquitous overexpression induced aberrant ipsilateral projections. Proper balance of Sema3D is needed at the midline for the progression of RGC axons from the chiasm midline into the contralateral optic tract. Sema3D is a member of the class 3 semaphorin family of proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200513 [Multi-domain]  Cd Length: 474  Bit Score: 247.13  E-value: 2.81e-77
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFG-TFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFL 79
Cdd:cd11252  302 MADIRAVFNGPYAHKESPDHRWVQYEGRIPYPRPGTCPSKTYDpLIKSTKDFPDEVISFIKRHPLMYKSVYPLTGGPVFT 381
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  80 QVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKgSRPSAEGLLLEELHVFEDSAAVTSMQISSKRHQLYV 159
Cdd:cd11252  382 RINVDYRLTQIVVDHVAAEDGQYDVMFLGTDIGTVLKVVSITK-EKWTMEEVVLEELQIFKHPSPILNMELSLKQQQLYI 460
                        170
                 ....*....|....
gi 586798186 160 ASRSAVAQIALHRC 173
Cdd:cd11252  461 GSRDGLVQLSLHRC 474
Sema_3C cd11251
The Sema domain, a protein interacting module, of semaphorin 3C (Sema3C); Sema3C is a secreted ...
1-173 6.35e-77

The Sema domain, a protein interacting module, of semaphorin 3C (Sema3C); Sema3C is a secreted semaphorin expressed in and adjacent to cardiac neural crest cells, and causes impaired migration of neural crest cells to the developing cardiac outflow tract, resulting in the interruption of the aortic arch and persistent truncus arteriosus. It has been proposed that Sema3C acts as a guidance molecule, regulating migration of neural crest cells that express semaphorin receptors such as plexin A2. Sema3C may also participate in tumor progression. The cleavage of Sema3C induced by ADAMTS1 promotes the migration of breast cancer cells. Sema3C is a member of the class 3 semaphorin family of secreted proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200512 [Multi-domain]  Cd Length: 470  Bit Score: 245.96  E-value: 6.35e-77
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFG-TFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFL 79
Cdd:cd11251  298 MSDIQTVFNGPFAHKEGPNHQLIAYQGRIPYPRPGTCPGGAFTpNMQSTKEFPDDVVTFIRNHPLMFNPIYPIGRRPLLV 377
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  80 QVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRPSAEgLLLEELHVFEDSAAVTSMQISSKRHQLYV 159
Cdd:cd11251  378 RTGTDYKYTKIAVDRVNAADGRYHVLFLGTDKGTVQKVVVLPTNGSLSGE-LILEELEVFKNHAPITNMKISSKKQQLYV 456
                        170
                 ....*....|....
gi 586798186 160 ASRSAVAQIALHRC 173
Cdd:cd11251  457 SSEEGISQVSLHRC 470
Sema_3G cd11255
The Sema domain, a protein interacting module, of semaphorin 3G (Sema3G); Semaphorin 3G is ...
1-173 1.51e-74

The Sema domain, a protein interacting module, of semaphorin 3G (Sema3G); Semaphorin 3G is identified as a primarily endothelial cell- expressed class 3 semaphorin that controls endothelial and smooth muscle cell functions in autocrine and paracrine manners, respectively. It is mainly expressed in the lung and kidney, and a little in the brain. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200516 [Multi-domain]  Cd Length: 474  Bit Score: 239.81  E-value: 1.51e-74
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFG----TFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRP 76
Cdd:cd11255  298 MADIWEVFNGPFAHKDGPDHQWGPYEGKVPYPRPGVCPSKITAqpgrAFRSTKDYPDEVLQFARAHPLMWRPVYPSHRRP 377
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  77 LFLQVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRPSAEGLLLEELHVFEDSAAVTSMQISSKRHQ 156
Cdd:cd11255  378 VLVKTGLPYRLTQIVVDRVEAEDGYYDVMFIGTDSGSVLKVIVLQKGNSAAGEEVTLEELQVFKVPTPITEMEISVKRQM 457
                        170
                 ....*....|....*..
gi 586798186 157 LYVASRSAVAQIALHRC 173
Cdd:cd11255  458 LYVGSRTGVAQVPLHRC 474
Sema_3E cd11253
The Sema domain, a protein interacting module, of semaphorin 3E (Sema3E); Sema3E is a secreted ...
1-173 4.94e-71

The Sema domain, a protein interacting module, of semaphorin 3E (Sema3E); Sema3E is a secreted molecule implicated in axonal path finding and inhibition of developmental and postischemic angiogenesis. It is also highly expressed in metastatic cancer cells. Sema3E signaling, through its high affinity functional receptor Plexin D1, drives cancer cell invasiveness and metastatic spreading. Sema3E is a member of the class 3 semaphorin family of proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200514 [Multi-domain]  Cd Length: 471  Bit Score: 230.51  E-value: 4.94e-71
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSK-TFGTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFL 79
Cdd:cd11253  298 MASIRAAFNGPFAHKEGPEYHWSVYEGKVPYPRPGSCASKvNGGHYGTTKDYPDEALRFARSHPLMYQAVKPVHKRPILV 377
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  80 QVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRPSAEGLLLEELHVFEDSAAVTSMQISSKRHQLYV 159
Cdd:cd11253  378 KTDGKYNLKQIAVDRVEAEDGQYDVLFIGTDNGIVLKVITIYNQETETMEEVILEELQVFKVPVPIISMEISSKRQQLYI 457
                        170
                 ....*....|....
gi 586798186 160 ASRSAVAQIALHRC 173
Cdd:cd11253  458 GSESGVAQIRFHQC 471
Sema pfam01403
Sema domain; The Sema domain occurs in semaphorins, which are a large family of secreted and ...
1-152 1.70e-63

Sema domain; The Sema domain occurs in semaphorins, which are a large family of secreted and transmembrane proteins, some of which function as repellent signals during axon guidance. Sema domains also occur in the hepatocyte growth factor receptor and Swiss:P51805


Pssm-ID: 460197 [Multi-domain]  Cd Length: 180  Bit Score: 201.73  E-value: 1.70e-63
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186    1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFGtfsstKDFPDDVIQFARNHPLMYNSVLPTGGRPLFlq 80
Cdd:pfam01403  41 LSDINAVFEGPFKEQEKSDSKWLPYTGKVPYPRPGTCINDPLR-----LDLPDSVLNFVKDHPLMDEAVQPVGGRPLL-- 113
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 586798186   81 VGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGsrpsaEGLLLEELHVFEDSAAVTSMQISS 152
Cdd:pfam01403 114 VRTGVRLTSIAVDRVQALDGNYTVLFLGTDDGRLHKVVLVGSE-----ESHIIEEIQVFPEPQPVLNLLLSS 180
Sema_semaphorin cd11235
The Sema domain, a protein interacting module, of semaphorins; Semaphorins are regulator ...
1-171 2.56e-50

The Sema domain, a protein interacting module, of semaphorins; Semaphorins are regulator molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. They can be divided into 7 classes. Vertebrates have members in classes 3-7, whereas classes 1 and 2 are known only in invertebrates. Class 2 and 3 semaphorins are secreted proteins; classes 1 and 4 through 6 are transmembrane proteins; and class 7 is membrane associated via glycosylphosphatidylinositol (GPI) linkage. The semaphorins exert their function through their receptors, the neuropilin and plexin families. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200496 [Multi-domain]  Cd Length: 437  Bit Score: 175.29  E-value: 2.56e-50
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQG-RVPYPRPGMCpsktfgtFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFL 79
Cdd:cd11235  274 LSDIEAVFNGPFKEQHSSNSAWLPVPDeRVPEPRPGTC-------VDDSSPLPDDTLNFIKSHPLMDEAVTPILNRPLFI 346
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  80 QVGANYTFTQIAADRVAAADGH-YDVLFIGTDVGTVLKVISVPKGSrpSAEGLLLEELHVFEDSAAVTSMQISSKRHQLY 158
Cdd:cd11235  347 KTDVNYRFTKIAVDRVQAKLGQtYDVLFVGTDRGIILKVVSLPEQG--LQASNILEEMPVGPPPEPIQTMQLSRKRRSLY 424
                        170
                 ....*....|...
gi 586798186 159 VASRSAVAQIALH 171
Cdd:cd11235  425 VGSETGVLQVPLA 437
Sema smart00630
semaphorin domain;
1-145 5.41e-47

semaphorin domain;


Pssm-ID: 214747 [Multi-domain]  Cd Length: 390  Bit Score: 165.23  E-value: 5.41e-47
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186     1 MNDVRRAFLGPFAHKEGPMHQWVSY-QGRVPYPRPGMCPSKTFgtfsSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFL 79
Cdd:smart00630 251 LSDINAVFNGPFKECETSTSQWLPYsRGKVPYPRPGTCPNKPP----SSKDLPDETLNFIKSHPLMDEVVQPLTGRPLFV 326
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 586798186    80 QVGANYTFTQIAADRVaAADGHYDVLFIGTDVGTVLKVISVPkgSRPSAEGLLLEELHVFEDSAAV 145
Cdd:smart00630 327 KTDSNYLLTSIAVDRV-ATDGNYTVLFLGTSDGRILKVVLSE--SSSSSESVVLEEISVFPDGSPI 389
Sema_4 cd11240
The Sema domain, a protein interacting module, of class 4 semaphorins (Sema4); Class 4 ...
1-170 1.99e-41

The Sema domain, a protein interacting module, of class 4 semaphorins (Sema4); Class 4 semaphorins (Sema4s) are transmembrane regulator molecules involved in the development of the nervous system, immune response, cytoskeletal organization, angiogenesis, and cell-cell interactions. There are 7 distinct subfamilies in class 4 semaphorins, named 4A to 4G. Several class 4 subfamilies play important roles in the immune system and are called "immune semaphorins". Sema4A plays critical roles in T cell-DC interactions in the immune response. Sema4D/CD100, expressed by lymphocytes, promotes the aggregation and survival of B lymphocytes and inhibits cytokine-induced migration of immune cells in vitro. It is required for normal activation of B and T lymphocytes. Sema4B negatively regulates basophil functions through T cell-basophil contacts and significantly inhibits IL-4 and IL-6 production from basophils in response to various stimuli, including IL-3 and papain. Sema4s not only influence the activation state of cells but also modulate their migration and survival. The effects of Sema4s on nonlymphoid cells are mediated by plexin D1 and plexin Bs. The Sema4G and Sema4C genes are expressed in the developing cerebellar cortex and are involved in neural tube closure and development of cerebellar granules cells through receptor plexin B2. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200501 [Multi-domain]  Cd Length: 456  Bit Score: 151.79  E-value: 1.99e-41
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMC--PSKTFGTFSSTKDFPDDVIQFARNHPLMYNSVLPTGgRPLF 78
Cdd:cd11240  292 LEDIKKVFSGKYKEFNRETSKWSRYTGPVPDPRPGACitNSARSQGITSSLNLPDNVLTFVKDHPLMDEQVHPIN-RPLL 370
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  79 LQVGANYTftQIAADRVAAADGH-YDVLFIGTDVGTVLKVISVPKGSRpsaeglLLEELHVFEDSAAVTSMQISSKRHQL 157
Cdd:cd11240  371 VKSGVNYT--RIAVHRVQALDGQtYTVLFLGTEDGFLHKAVSLDGGMH------IIEEIQLFDQPQPVKNLLLSSSKGVL 442
                        170
                 ....*....|...
gi 586798186 158 YVASRSAVAQIAL 170
Cdd:cd11240  443 YVGSSSGVVQVPL 455
Sema_4G cd11262
The Sema domain, a protein interacting module, of semaphorin 4G (Sema4G); The Sema4G and ...
1-170 3.86e-40

The Sema domain, a protein interacting module, of semaphorin 4G (Sema4G); The Sema4G and Sema4C genes are expressed in the developing cerebellar cortex. Sema4G and Sema4C proteins specifically bind to Plexin B2 expressed in the cerebellar granule cells. Sema4G and Sema4C are involved in neural tube closure and cerebellar granule cell development through Plexin B2.Sema4G belongs to the class 4 transmembrane semaphorin family of proteins. Semaphorins are regulatory molecules involved in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200523 [Multi-domain]  Cd Length: 457  Bit Score: 148.37  E-value: 3.86e-40
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFGT--FSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLF 78
Cdd:cd11262  292 LSDIQTAFEGPYMEYQDSSSKWSRYTGKVPEPRPGSCITDEHRSqgINSSQDLPDNVLDFVRRHPLMAEQVLPVEGRPLL 371
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  79 LQVGANYtfTQIAADRVAAADGH-YDVLFIGTDVGTVLKviSVPKGSRPSaeglLLEELHVFEDSAAVTSMQISSKRHQL 157
Cdd:cd11262  372 FKRNVIY--TKIAVQTVRGLDGRvYDVLFLGTDEGWLHK--AVVIGSAVH----IIEELQVFREPQPVENLVISKKQNSL 443
                        170
                 ....*....|...
gi 586798186 158 YVASRSAVAQIAL 170
Cdd:cd11262  444 YVGARSGVVQVPL 456
Sema_1A cd11237
The Sema domain, a protein interacting module, of semaphorin 1A (Sema1A); Sema1A is a ...
1-173 4.25e-34

The Sema domain, a protein interacting module, of semaphorin 1A (Sema1A); Sema1A is a transmembrane protein. It has been shown to mediate the defasciculation of motor axon bundles at specific choice points. Sema1A binds to its receptor plexin A (PlexA), which in turn triggers downstream signaling events involving the receptor tyrosine kinase Otk, the evolutionarily conserved flavoprotein monooxygenase molecule interacting with CasL (MICAL), and the A kinase anchoring protein Nervy, leading to repulsive growth-cone response. Sema1A has also been shown to be involved in synaptic formation. It is a member of the semaphorin family of proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200498 [Multi-domain]  Cd Length: 446  Bit Score: 131.68  E-value: 4.25e-34
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQG-RVPYPRPGMC--PSKTFgtfsstkdfPDDVIQFARNHPLMYNSVLPTGGRPL 77
Cdd:cd11237  275 LQDILEVFDGSFKEQQDINSNWLPVPSnKVPEPRPGQCvnDSRTL---------PDVTVNFIKSHPLMDEAVPSFFGRPI 345
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  78 FLQVGANYTFTQIAAD-RVAAADGH-YDVLFIGTDVGTVLKVISVPKG-SRPSAEGLLLEELHVFEDSAAVTSMQISSKR 154
Cdd:cd11237  346 LVRTSLQYRFTQIAVDpQVKALDGKyYDVLFIGTDDGKVLKAVNIASAdTVDKVSPVVIEETQVFPRGVPIRNLLIVRGK 425
                        170       180
                 ....*....|....*....|.
gi 586798186 155 HQ--LYVASRSAVAQIALHRC 173
Cdd:cd11237  426 DDgrLVVVSDDEIVSIPLHRC 446
Ig_Sema3 cd05871
Immunoglobulin (Ig)-like domain of class III semaphorin Sema3; The members here are composed ...
231-322 8.67e-33

Immunoglobulin (Ig)-like domain of class III semaphorin Sema3; The members here are composed of the immunoglobulin (Ig)-like domain of Sema3 and similar proteins. Semaphorins are classified based on structural features additional to the Sema domain. Sema3 is a Class III semaphorin that is secreted. It is a vertebrate class having a Sema domain, an Ig domain, a short basic domain. They have been shown to be axonal guidance cues and have a part in the regulation of the cardiovascular, immune, and respiratory systems. Sema3A, the prototype member of this class III subfamily, induces growth cone collapse and is an inhibitor of axonal sprouting. In perinatal rat cortex, it acts as a chemoattractant and functions to direct the orientated extension of apical dendrites. It may play a role, prior to the development of apical dendrites, in signaling the radial migration of newborn cortical neurons towards the upper layers. Sema3A selectively inhibits vascular endothelial growth factor receptor (VEGF)-induced angiogenesis and induces microvascular permeability. This group also includes Sema3B, -C, -D, -E, -G.


Pssm-ID: 409455  Cd Length: 92  Bit Score: 118.60  E-value: 8.67e-33
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186 231 ALLEHKVFGVEGSSAFLECEPRSLQARVEWTFQRAGVTAHTQVLAEERTERTARGLLLRRLRRRDSGVYLCAAVEQGFTQ 310
Cdd:cd05871    1 NAEEKVVYGVEGNSTFLECLPKSPQATVKWLFQRGGDQRKEEVKSEERLIVTDRGLLLRSLQRSDAGVYTCQAVEHGFSQ 80
                         90
                 ....*....|..
gi 586798186 311 PLRRLSLHVLSA 322
Cdd:cd05871   81 TLVKIRLHVIEP 92
Sema_4E cd11260
The Sema domain, a protein interacting module, of semaphorin 4E (Sema4E); Sema4E is expressed ...
21-170 6.40e-30

The Sema domain, a protein interacting module, of semaphorin 4E (Sema4E); Sema4E is expressed in the epithelial cells that line the pharyngeal arches in zebrafish. It may act as a guidance molecule to restrict the branchiomotor axons to the mesenchymal cells. Gain-of-function and loss-of-function studies demonstrate that Sema4E is essential for the guidance of facial axons from the hindbrain into their pharyngeal arch targets and is sufficient for guidance of gill motor axons. Sema4E guides facial motor axons by a repulsive action. Sema4E belongs to the class 4 transmembrane semaphorin family of proteins. Semaphorins are regulatory molecules involved in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200521 [Multi-domain]  Cd Length: 456  Bit Score: 120.01  E-value: 6.40e-30
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  21 QWVSYQGRVPYPRPGMC---PSKTFGtFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFLQVGAnyTFTQIAADRVAA 97
Cdd:cd11260  313 KWVMYSGELPVPRPGACinnAARTSG-IKKSLNLPDKTLQFVKDKPLMDQAVHPITGKPLLVKRGA--LFTRIVVDMVTA 389
                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....
gi 586798186  98 ADGH-YDVLFIGTDVGTVLKVISVpkgsrpSAEGLLLEELHVFEDSAAVTSMQISSKrhQLYVASRSAVAQIAL 170
Cdd:cd11260  390 ADGQsYPVMFIGTANGYVLKAVNY------DGEMHIIEEVQLFEPEEPIDILRLSQN--QLYAGSASGVVQMPV 455
Sema_6D cd11269
The Sema domain, a protein interacting module, of semaphorin 6D (Sema6D); Sema6D is expressed ...
1-170 7.74e-30

The Sema domain, a protein interacting module, of semaphorin 6D (Sema6D); Sema6D is expressed predominantly in the nervous system during embryogenesis and it uses Plexin-A1 as a receptor. It displays repellent activity for dorsal root ganglion axons. Sema6D also acts as a regulator of late phase primary immune responses. In addition, Sema6D is overexpressed in gastric carcinoma, indicating that it may have an important role in the occurrence and development of the cancer. Sema6D is a member of the class 6 semaphorin family of proteins, which are membrane associated semaphorins. Semaphorins are regulatory molecules involved in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200530 [Multi-domain]  Cd Length: 465  Bit Score: 120.13  E-value: 7.74e-30
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSY-QGRVPYPRPGMCPSKTFG-TFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLF 78
Cdd:cd11269  285 MDDIEKVFKGRFKEQKTPDSVWTAVpEDKVPKPRPGCCAKHGLAeAYKTSIDFPDETLSFIKSHPLMDSAVPSIIEEPWF 364
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  79 LQVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISvpkGSRPSA--EGLLLEELHVF---------EDSAAVTS 147
Cdd:cd11269  365 TKTRVRYRLTAIAVDHAAGPHQNYTVIFVGSEAGVVLKILA---KTSPFSlnDSVLLEEIEAYnhakcsaenEEDRRVIS 441
                        170       180
                 ....*....|....*....|...
gi 586798186 148 MQISSKRHQLYVASRSAVAQIAL 170
Cdd:cd11269  442 LQLDRDHHALFVAFSSCVVRIPL 464
Sema_6 cd11242
The Sema domain, a protein interacting module, of class 6 semaphorins (Sema6); Class 6 ...
1-170 1.77e-29

The Sema domain, a protein interacting module, of class 6 semaphorins (Sema6); Class 6 semaphorins (Sema6s) are membrane associated semaphorins. There are 6 subfamilies named 6A to 6D. Sema6s bind to plexin As in a neuropilin independent fashion. Sema6-plexin A signaling plays important roles in lamina-specific axon projections. Interactions between plexin A2, plexin A4, and Sema6A control lamina-restricted projection of hippocampal mossy fibers. Interactions between Sema6C, Sema6D and plexin A1 shape the stereotypic trajectories of sensory axons in the spinal cord. In addition to axon targeting, Sema6D-plexin A1 interactions influence a wide range of other biological processes. During cardiac development, Sema6D attracts or repels endothelial cells in the cardiac tube depending on the expression patterns of specific coreceptors in addition to plexin A1. Furthermore, Sema6D binds a receptor complex comprising of plexin A1, Trem2 (triggering receptor expressed on myeloid cells 2), and DAP12 on dendritic cells and osteoclasts to mediate T-cell-DC interactions and to control bone development, respectively. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200503 [Multi-domain]  Cd Length: 465  Bit Score: 119.16  E-value: 1.77e-29
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSY-QGRVPYPRPGMCP-SKTFGTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLF 78
Cdd:cd11242  285 MDDIEKVFEGRFKEQKSPDSAWTPVpEDRVPKPRPGCCAgSGSAEKYKTSNDFPDDTLNFIKTHPLMDEAVPSIINRPWF 364
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  79 LQVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVIsVPKGSRPSAEGLLLEELHVF---------EDSAAVTSMQ 149
Cdd:cd11242  365 TRTMVRYRLTQIAVDNAAGPYQNYTVVFLGSEAGTVLKFL-ARIGPSGSNGSVFLEEIDVYnpakcsydgEEDRRIIGLE 443
                        170       180
                 ....*....|....*....|.
gi 586798186 150 ISSKRHQLYVASRSAVAQIAL 170
Cdd:cd11242  444 LDRASHALFVAFSGCVIRVPL 464
Sema_4D cd11259
The Sema domain, a protein interacting module, of semaphorin 4D (Sema4D, also known as CD100); ...
21-167 8.12e-28

The Sema domain, a protein interacting module, of semaphorin 4D (Sema4D, also known as CD100); Sema4D/CD100 is expressed in immune cells and plays critical roles in immune response; it is thus termed an "immune semaphorin". It is expressed by lymphocytes and promotes the aggregation and survival of B lymphocytes and inhibits cytokine-induced migration of immune cells in vitro. Sema4D/CD100 knock-out mice demonstrate that Sema4D is required for normal activation of B and T lymphocytes. Sema4D increases B-cell and DC function using either Plexin B1 or CD72 as receptors. The function of Sema4D in immune response implicates its role in infectious and noninfectious diseases. Sema4D belongs to the class 4 transmembrane semaphorin family of proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200520 [Multi-domain]  Cd Length: 471  Bit Score: 114.57  E-value: 8.12e-28
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  21 QWVSYQGRVPYPRPGMCPSKTF--GTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFLQVGANYtfTQIAADRVAAA 98
Cdd:cd11259  324 KWVRYNGEVPKPRPGACINNEAraANYTSSLNLPDKTLQFVKDHPLMDDSVTPIGNRPRLIKKDVNY--TQIVVDRVQAL 401
                         90       100       110       120       130       140       150
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 586798186  99 DGH-YDVLFIGTDVGTVLKVISVPKGSRpsaeglLLEELHVFEDSAAVTSMQISSK--RHQLYVASRSAVAQ 167
Cdd:cd11259  402 DGTiYDVMFISTDRGALHKAISLENEVH------IIEETQLFPDFEPVQTLLLSSKkgRRFLYAGSNSGVVQ 467
Sema_4B cd11257
The Sema domain, a protein interacting module, of semaphorin 4B (Sema4B); Sema4B, expressed in ...
1-170 3.20e-26

The Sema domain, a protein interacting module, of semaphorin 4B (Sema4B); Sema4B, expressed in T and B cells, is an immune semaphorin. It functions as a negative regulatory of basophils through T cell-basophil contacts and it significantly inhibits IL-4 and IL-6 production from basophils in response to various stimuli, including IL-3 and papain. In addition, T cell-derived Sema4B suppresses basophil-mediated Th2 skewing and humoral memory responses. Sema4B may be also involved in lung cancer cell mobility by inducing the degradation of CLCP1 (CUB, LCCL-homology, coagulation factor V/VIII homology domains protein). Sema4B is characterized by a PDZ-binding motif at the carboxy-terminus, which mediates interaction with the post-synaptic density protein PSD-95/SAP90, which is thought to play a central role during synaptogenesis and in the structure and function of post-synaptic specializations of excitatory synapses. Sema4B belongs to class 4 transmembrane semaphorin family proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200518 [Multi-domain]  Cd Length: 464  Bit Score: 109.57  E-value: 3.20e-26
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCPSKTFGT--FSSTKDFPDDVIQFARNHPLMYNSVLptgGRPLF 78
Cdd:cd11257  303 MDQVQRAFNGLYKEVNRETQQWYTYTHPVPEPRPGACITNSARErkINSSLHMPDRVLNFVKDHFLMDGQVR---SQPLL 379
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  79 LQVGANYtfTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRpsaeglLLEELHVFEDSAAVTSMQISSKRHQLY 158
Cdd:cd11257  380 LQPQVRY--TQIAVHRVKGLHKTYDVLFLGTDDGRLHKAVSVGPMVH------IIEELQIFSEGQPVQNLLLDTHKGLLY 451
                        170
                 ....*....|..
gi 586798186 159 VASRSAVAQIAL 170
Cdd:cd11257  452 ASSHSGVVQVPV 463
Sema_6A cd11266
The Sema domain, a protein interacting module, of semaphorins 6A (Sema6A); In the cerebellum, ...
1-170 1.41e-24

The Sema domain, a protein interacting module, of semaphorins 6A (Sema6A); In the cerebellum, Sema6A-plexin A2 signaling modulates granule cell migration by controlling centrosome positioning. Besides plexin A2, plexin A4 is also found to be a receptor of Sema6A. Interactions between plexin A2, plexin A4, and Sema6A control lamina-restricted projection of hippocampal mossy fibers. It is required for the clustering of boundary cap cells at the PNS/CNS interface and thus, prevents motoneurons from streaming out of the ventral spinal cord. At the dorsal root entry site, it organizes the segregation of dorsal roots. Sema6A may also be involved in axonal pathfinding processes in the periinfarct and homotopic contralateral cortex. Sema6A is a member of the class 6 semaphorin family of proteins, which are membrane associated semaphorins. Semaphorins are regulatory molecules involved in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200527 [Multi-domain]  Cd Length: 466  Bit Score: 105.11  E-value: 1.41e-24
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSY-QGRVPYPRPGMCP-SKTFGTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLF 78
Cdd:cd11266  285 MLDIASVFTGRFKEQKSPDSTWTPVpDERVPKPRPGCCAgSSSLEKYATSNEFPDDTLNFIKTHPLMDEAVPSIINRPWF 364
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  79 LQVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRPSAEGLLLEELHVFE---------DSAAVTSMQ 149
Cdd:cd11266  365 LRTMVRYRLTKIAVDNAAGPYQNHTVVFLGSEKGIILKFLARTGNSGFLNDSLFLEEMNVYNsekcsydgvEDKRIMGMQ 444
                        170       180
                 ....*....|....*....|.
gi 586798186 150 ISSKRHQLYVASRSAVAQIAL 170
Cdd:cd11266  445 LDKASSALYVAFSTCVIKVPL 465
Sema_4F cd11261
The Sema domain, a protein interacting module, of semaphorin 4F (Sema4F); Sema4F plays role in ...
1-168 9.63e-24

The Sema domain, a protein interacting module, of semaphorin 4F (Sema4F); Sema4F plays role in heterotypic cell-cell contacts and controls cell proliferation and suppresses tumorigenesis. In neurofibromatosis type 1 (NF1) patients, reduced Sema4F level disrupts Schwann cell/axonal interactions. Experiments using a yeast two-hybrid system show that the extreme C-terminus of Sema4F interacts with the PDZ domains of post-synaptic density protein SAP90/PSD-95, indicating possible functional involvement of Semas4F at glutamatergic synapses. Recent work also suggests a role for Sema4F in the injury response of intramedullary axotomized motoneuron. Sema4F belongs to the class 4 transmembrane semaphorin family of proteins. Semaphorins are regulator molecules involved in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200522 [Multi-domain]  Cd Length: 460  Bit Score: 102.66  E-value: 9.63e-24
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSY-QGRVPYPRPGMC--PSKTFGTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPL 77
Cdd:cd11261  296 PQDIRRVMNGPFREFKHDCNRGLPVmDSDVPQPRPGECitNNMKLLGFGSSLSLPDRVLTFVRDHPLMDRPVFPADGHPL 375
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  78 FLQVGANYtfTQIAADRVAAADG-HYDVLFIGTDVGTVLKVISVpkGSRPSaeglLLEELHVFEDSAAVTSMQIsskrHQ 156
Cdd:cd11261  376 LVTTDTAY--LRVAAHRVTSLSGkEYDVLYLGTEDGHLHRAVRI--GAQLS----VLEDLALFPEPQPVENLQL----HH 443
                        170
                 ....*....|....
gi 586798186 157 --LYVASRSAVAQI 168
Cdd:cd11261  444 nwLLVGSDTEVTQI 457
Sema_6E cd11270
The Sema domain, a protein interacting module, semaphorin 6E (sema6E); Sema6E is expressed ...
1-170 1.33e-23

The Sema domain, a protein interacting module, semaphorin 6E (sema6E); Sema6E is expressed predominantly in the nervous system during embryogenesis. It binds Plexin A1 and might utilize it as a receptor to repel axons of specific types during development. Sema6E acts as a repellent to dorsal root ganglion axons as well as sympathetic axons. Sema6E is a member of the class 6 semaphorin family of proteins, which are membrane associated semaphorins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200531 [Multi-domain]  Cd Length: 462  Bit Score: 102.11  E-value: 1.33e-23
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSY-QGRVPYPRPGMCPS-KTFGTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLF 78
Cdd:cd11270  283 MDDIEKVFNGKFKEQRNSESAWTPVpDEAVPKPRPGSCAGdGPAAGYKSSTNFPDETLTFIKSYPLMDEAVPSVNNRPCF 362
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  79 LQVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISvPKGSRPSAEGLLLEELHVF--------EDSAAVTSMQI 150
Cdd:cd11270  363 TRTTSRFKLTQIAVDTAAGPYKNYTVVFLGSENGHVLKVLA-SMHPNSSYSTQVLEDIDVYnpnkcnvrGEDRRILGLEL 441
                        170       180
                 ....*....|....*....|
gi 586798186 151 SSKRHQLYVASRSAVAQIAL 170
Cdd:cd11270  442 DKDHHALFVAFTGCVIRVPL 461
Sema_6B cd11267
The Sema domain, a protein interacting module, of semaphorin 6B (Sema6B); Sema6B functions as ...
1-139 3.02e-21

The Sema domain, a protein interacting module, of semaphorin 6B (Sema6B); Sema6B functions as repellents for axon growth; this repulsive activity is mediated by its receptor Plexin A4. Sema6B is expressed in CA3, and repels mossy fibers in a Plexin A4 dependent manner. In human, it was shown that peroxisome proliferator-activated receptors (PPARs) and 9-cis-retinoic acid receptor (RXR) regulate human semaphorin 6B (Sema6B) gene expression. Sema6B is a member of the class 6 semaphorin family of proteins, which are membrane associated semaphorins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200528 [Multi-domain]  Cd Length: 466  Bit Score: 95.28  E-value: 3.02e-21
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSY-QGRVPYPRPGMCPSKTFgTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFL 79
Cdd:cd11267  285 MTQVAAVFEGRFREQKSPESIWTPVpEELVPRPRPGCCAAPGM-RYNSSSTLPDEVLNFVKTHPLMDEAVPSLGHAPWIV 363
                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|..
gi 586798186  80 QVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRPSAEGL--LLEELHVF 139
Cdd:cd11267  364 RTMTRYQLTHMVVDTEAGPHGNHTVVFLGSTRGTVLKFLIIPNASSSEISNQsvFLEELETY 425
Sema_6C cd11268
The Sema domain, a protein interacting module, of semaphorin 6C (Sema6C, also called ...
1-170 5.74e-20

The Sema domain, a protein interacting module, of semaphorin 6C (Sema6C, also called semaphorin Y); Sema6C is highly expressed in adult brain and skeletal muscle and it shows growth cone collapsing activity. It may play a role in the maintenance and remodelling of neuronal connections. In adult skeletal muscle, this role includes prevention of motor neuron sprouting and uncontrolled motor neuron growth. The expression of Sema6C in adult skeletal muscle is down-regulated following denervation. Sema6C is a member of the class 6 semaphorin family of proteins, which are membrane associated semaphorins. Semaphorins are regulatory molecules involved in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200529 [Multi-domain]  Cd Length: 465  Bit Score: 91.30  E-value: 5.74e-20
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSY-QGRVPYPRPGMCPS-KTFGTFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLf 78
Cdd:cd11268  284 LDEIERGFEGKFKEQRSLDGAWTPVsEDRVPSPRPGSCAGvGGAALFSSSRDLPDDVLTFIKAHPLLDPAVPPVTHQPL- 362
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  79 LQVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISvPKGSRPSAEGLLLEELHVF-----------EDSAAVTS 147
Cdd:cd11268  363 LTLTSRALLTQVAVDGMAGPHSNITVMFLGSNDGTVLKVLP-PGGRSGGPEPILLEEIDAYsparcsgkrtaQTARRIIG 441
                        170       180
                 ....*....|....*....|...
gi 586798186 148 MQISSKRHQLYVASRSAVAQIAL 170
Cdd:cd11268  442 LELDTEGHRLFVAFSGCIVYLPL 464
Sema_7A cd11243
The Sema domain, a protein interacting module, of semaphorin 7A (Sema7A, also called CD108); ...
25-170 6.68e-18

The Sema domain, a protein interacting module, of semaphorin 7A (Sema7A, also called CD108); Sema7A plays regulatory roles in both immune and nervous systems. Unlike other semaphorins, which act as repulsive guidance cues, Sema7A enhances central and peripheral axon growth and is required for proper axon tract formation during embryonic development. Sema7A also plays a critical role in the negative regulation of T cell activation and function. Sema7A is a membrane-anchored member of the semaphorin family of proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200504 [Multi-domain]  Cd Length: 414  Bit Score: 84.90  E-value: 6.68e-18
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  25 YQGRVPYPRPGMCpsktfgtFSSTKDFPDDVIQFARNHPLMYNSVLPTGGRPLFLqVGANYTFTQIAADRVAAADGH-YD 103
Cdd:cd11243  281 YSGSLPNPRPGTC-------VPPEQTHPSETFSFADEHPELDDRIEPDEPRKLPV-FQNKDHYQKVVVDEVRASDGVsYD 352
                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 586798186 104 VLFIGTDVGTVLKVIsvpkgsRPSAEGLLLEELHVFEDSAAVTSMQISSKRHQLYVASRSAVAQIAL 170
Cdd:cd11243  353 VLYLATDKGKIHKVV------ESKGQTHNIMEIQPFKEQEPIQSMILDAERSHLYVGTKAEVTRLPL 413
Sema_2A cd11238
The Sema domain, a protein interacting module, of semaphorin 2A (Sema2A); Sema2A, a secreted ...
1-170 8.37e-17

The Sema domain, a protein interacting module, of semaphorin 2A (Sema2A); Sema2A, a secreted semaphorin, signals through its receptor plexin B (PlexB) to regulate central and peripheral axon pathfinding. In the Drosophila embryo, Sema2A secreted by oenocytes interacts with PlexB to guide sensory axons. Sema2A is a member of the semaphorin family of proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200499 [Multi-domain]  Cd Length: 452  Bit Score: 81.70  E-value: 8.37e-17
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFL-GPFAHKEGPMHQWVSY-QGRVPYPRPGMCpsktfgtFSSTKDFPDDVIQFARNHPLMYNSVlpTGGRPLF 78
Cdd:cd11238  295 LSDINAAFDtGKFKEQASSSSAWLPVlSSEVPEPRPGTC-------VNDSATLSDTVLHFARTHPLMDDAV--SHGPPLL 365
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  79 lqVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVPKGSRPSAEglLLEELHVfEDSAAVTSMQIsSKRHQLY 158
Cdd:cd11238  366 --YLRDVVFTHLVVDKLRIDDQEYVVFYAGSNDGKVYKIVHWKDAGESKSN--LLDVFEL-TPGEPIRAMEL-LPGEFLY 439
                        170
                 ....*....|..
gi 586798186 159 VASRSAVAQIAL 170
Cdd:cd11238  440 VASDHRVSQIDL 451
Sema_4A cd11256
The Sema domain, a protein interacting module, of semaphorin 4A (Sema4A); Sema4A is expressed ...
1-193 9.72e-17

The Sema domain, a protein interacting module, of semaphorin 4A (Sema4A); Sema4A is expressed in immune cells and is thus termed an "immune semaphorin". It plays critical roles in T cell-DC interactions in the immune response. It has been reported to enhance activation and differentiation of T cells in vitro and generation of antigen-specific T cells in vivo. The function of Sema4A in the immune response implicates its role in infectious and noninfectious diseases. Sema4A exerts its function through three receptors, namely Plexin B, Plexin D1, and Tim-2. Sema4A belongs to the class 4 transmembrane semaphorin family of proteins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. TThe Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200517 [Multi-domain]  Cd Length: 447  Bit Score: 81.49  E-value: 9.72e-17
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYQGRVPYPRPGMCpskTFGTFSstkdfpDDVIQFARNHPLMYNSVLPTGGRPLFlq 80
Cdd:cd11256  292 LNDIEKVFNGKYKELNKESSRWTRYMGPVSDPRPGSC---SGGKSS------DKALNFMKDHFLMDEVVLPGAGRPLL-- 360
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  81 VGANYTFTQIAADRVAAADGH-YDVLFIGTDVGTVLKVIsVPKGSrpsaEGLLLEELHVFEDSAAVTSmqisskrhqlyv 159
Cdd:cd11256  361 VKSNVQYTRIAVDSVQGVSGHnYTVMFLGTDKGFLHKAV-LMGGS----ESHIIEEIELLTPPEPVEN------------ 423
                        170       180       190
                 ....*....|....*....|....*....|....
gi 586798186 160 asrsavaqiaLHRCAAHGrvcteCCLARDPYCAW 193
Cdd:cd11256  424 ----------LLLAANEG-----VVYIGYSAGVW 442
Sema_5B cd11264
The Sema domain, a protein interacting module, of semaphorin 5B (Sema5B); Sema5B is expressed ...
1-170 5.35e-15

The Sema domain, a protein interacting module, of semaphorin 5B (Sema5B); Sema5B is expressed in regions of the basal telencephalon in rat. Sema5B is an inhibitory cue for corticofugal axons and acts as a source of repulsion for the appropriate guidance of cortical axons away from structures such as the ventricular zone as they navigate toward and within subcortical regions. In addition to its role as a guidance cue, Sema5B regulates the development and maintenance of synapse size and number in hippocampal neurons. In addition, the sema domain of Sema5B can be cleaved of the whole protein and exerts its function in regulation of synapse morphology. Sema5B belongs to the class 5 semaphorin family of proteins, which are transmembrane glycoproteins characterized by unique thrombospondin specific repeats in the extracellular region of the protein. Semaphorins are regulatory molecules involved in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200525 [Multi-domain]  Cd Length: 437  Bit Score: 76.17  E-value: 5.35e-15
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVsyqgrvPYPRPgmCPSKTFGTFSST---KDFPDDVIQFARNHPLMYNSVLPTGGRPL 77
Cdd:cd11264  275 LSAITQAFNGPFRYQENPRSAWL------PTANP--IPNFQCGTLSDDspnENLTERSLQDAQRLFLMNDVVQPVTVDPL 346
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  78 FLQvgANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKVISVpkgSRPSAEGLLLEELHVFEDS--AAVTSMQISSKRH 155
Cdd:cd11264  347 VTQ--DSVRFSKLVVDIVQGKDTLYHVMYIGTEYGTILKALST---TNRSLRSCYLEEMQILPPGqrEPIRSLQILHSDR 421
                        170
                 ....*....|....*
gi 586798186 156 QLYVASRSAVAQIAL 170
Cdd:cd11264  422 SLFVGLNNGVLKIPL 436
Sema_5 cd11241
The Sema domain, a protein interacting module, of semaphorin 5 (Sema5); Class 5 semaphorins ...
1-170 1.34e-13

The Sema domain, a protein interacting module, of semaphorin 5 (Sema5); Class 5 semaphorins are transmembrane glycoproteins characterized by unique thrombospondin specific repeats in the extracellular region of the protein. There are three subfamilies in class 5 semaphorins, namely 5A, 5B and 5C. Sema5A and Sema5B function as guidance cues for optic and corticofugal nerve development, respectively. Sema5A-induced cell migration requires Met signaling. Sema5C is an early development gene and may play a role in odor-guided behavior. Sema5A is also implicated in cancer. In a screening model for metastasis, the Drosophila Sema5A ortholog, Dsema-5C, has been found to be required in tumorigenicity and metastasis. Sema5A is highly expressed in human pancreatic cancer cells and is associated with tumor growth, invasion and metastasis. Semaphorins are regulatory molecules involved in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems and cancer. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a receptor-recognition and -binding module.


Pssm-ID: 200502 [Multi-domain]  Cd Length: 438  Bit Score: 71.82  E-value: 1.34e-13
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186   1 MNDVRRAFLGPFAHKEGPMHQWVSYqgrvPYPRPGMCPSKTF--GTFSSTKDfpdDVIQFARNHPLMYNSVLPTGGRPLF 78
Cdd:cd11241  276 LSAINQAFNGPFKYQENNGSAWLPT----PNPHPNFQCTTSIdrGQPANTTE---RDLQDAQKYQLMAEVVQPVTKIPLV 348
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  79 LQvgANYTFTQIAADRVAAADG-HYDVLFIGTDVGTVLKVISVPKgsrpSAEGLLLEELHVFED--SAAVTSMQISSKRH 155
Cdd:cd11241  349 TM--DDVRFSKLAVDVVQGRGTqLVHIFYVGTDYGTILKMYQPHR----SQKSCTLEEIKILPAmkGEPITSLQFLKSEK 422
                        170
                 ....*....|....*
gi 586798186 156 QLYVASRSAVAQIAL 170
Cdd:cd11241  423 SLFVGLETGVLRIPL 437
Sema cd09295
The Sema domain, a protein interacting module, of semaphorins and plexins; Both semaphorins ...
42-170 9.24e-11

The Sema domain, a protein interacting module, of semaphorins and plexins; Both semaphorins and plexins have a Sema domain on their N-termini. Plexins function as receptors for the semaphorins. Evolutionarily, plexins may be the ancestor of semaphorins. Semaphorins are regulatory molecules in the development of the nervous system and in axonal guidance. They also play important roles in other biological processes, such as angiogenesis, immune regulation, respiration systems, and cancer. Semaphorins can be divided into 7 classes. Vertebrates have members in classes 3-7, whereas classes 1 and 2 are known only in invertebrates. Class 2 and 3 semaphorins are secreted; classes 1 and 4 through 6 are transmembrane proteins; and class 7 is membrane associated via glycosylphosphatidylinositol (GPI) linkage. Plexins are a large family of transmembrane proteins, which are divided into four types (A-D) according to sequence similarity. In vertebrates, type A plexins serve as co-receptors for neuropilins to mediate the signalling of class 3 semaphorins. Plexins serve as direct receptors for several other members of the semaphorin family: class 6 semaphorins signal through type A plexins and class 4 semaphorins through type B plexins. This family also includes the MET and RON receptor tyrosine kinases. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves to recognize and bind receptors.


Pssm-ID: 200495 [Multi-domain]  Cd Length: 392  Bit Score: 62.99  E-value: 9.24e-11
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  42 FGTFSSTKDFPDD----VIQFARNHPLMYNSVLPTGGRPLFLQVGANYTFTQIAADRVAAADGHYDVLFIGTDVGTVLKV 117
Cdd:cd09295  263 FAIFSSCLNKSVEsavcAYLFTDINNVFDDPVEAINNRPLYAHQNQRSRLTSIAVDATKQKSVGYQVVFLGLKLGSLGKA 342
                         90       100       110       120       130
                 ....*....|....*....|....*....|....*....|....*....|...
gi 586798186 118 ISvpkgSRPSAEGLLLEELHVFEDSAAVTSMQISSKRHQLYVASRSAVAQIAL 170
Cdd:cd09295  343 LA----FFFLYKGHIIEEWKVFKDSSRITNLDLSRPPLYLYVGSESGVLGVPV 391
Ig_Semaphorin_C cd04979
Immunoglobulin (Ig)-like domain at the C-terminus of semaphorins; The members here are ...
241-320 7.21e-09

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: 52.46  E-value: 7.21e-09
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186 241 EGSSAFLECEPRSLQARVEWTFQRAGVTAHTQVLAEERTERtarGLLLRRLRRRDSGVYLCAAVEQGFTQPLRRLSLHVL 320
Cdd:cd04979   10 EGDTVILSCSVKSNNAPVTWIHNGKKVPRYRSPRLVLKTER---GLLIRSAQEADAGVYECHSGERVLGSTLRSVTLHVL 86
Sema_plexin_A2 cd11272
The Sema domain, a protein interacting module, of Plexin A2; Plexin A2 serves as a receptor ...
102-193 1.19e-08

The Sema domain, a protein interacting module, of Plexin A2; Plexin A2 serves as a receptor for class 6 semaphorins. Interactions between Plexin A2, A4 and semaphorins 6A and 6B control the lamina-restricted projection of hippocampal mossy fibers. Sema6B also repels the growth of mossy fibers in a Plexin A4 dependent manner. Plexin A2 does not suppress Sema6B function. In addition, studies have shown that Plexin A2 may be related to anxiety and other psychiatric disorders. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a ligand-recognition and -binding module.


Pssm-ID: 200533 [Multi-domain]  Cd Length: 515  Bit Score: 56.86  E-value: 1.19e-08
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186 102 YDVLFIGTDVGTVLKVisvpKGSRPSAEGLLLEELHVFEDSAAV-TSMQISSKRHQLYVASRSAVAQIALHRCAAHgRVC 180
Cdd:cd11272  406 YSVVFVGTKSGKLKKI----RADGPPHGGVQYEMVSVFKDGSPIlRDMAFSIDHKYLYVMSERQVSRVPVESCEQY-TTC 480
                         90
                 ....*....|...
gi 586798186 181 TECCLARDPYCAW 193
Cdd:cd11272  481 GECLSSGDPHCGW 493
PSI smart00423
domain found in Plexins, Semaphorins and Integrins;
172-208 1.11e-05

domain found in Plexins, Semaphorins and Integrins;


Pssm-ID: 214655 [Multi-domain]  Cd Length: 47  Bit Score: 42.15  E-value: 1.11e-05
                           10        20        30
                   ....*....|....*....|....*....|....*....
gi 586798186   172 RCAAHGRvCTECCLARDPYCAWDGV--ACTRFQPSAKRR 208
Cdd:smart00423   1 RCSKYTS-CSECLLARDPYCAWCSSqgRCTSGERCDSRR 38
PSI pfam01437
Plexin repeat; A cysteine rich repeat found in several different extracellular receptors. The ...
172-202 2.33e-03

Plexin repeat; A cysteine rich repeat found in several different extracellular receptors. The function of the repeat is unknown. Three copies of the repeat are found Plexin. Two copies of the repeat are found in mahogany protein. A related C. elegans protein contains four copies of the repeat. The Met receptor contains a single copy of the repeat. The Pfam alignment shows 6 conserved cysteine residues that may form three conserved disulphide bridges, whereas some members show 8 conserved cysteines. The pattern of conservation suggests that cysteines 5 and 7 (that are not absolutely conserved) form a disulphide bridge (Personal observation. A Bateman).


Pssm-ID: 396154 [Multi-domain]  Cd Length: 52  Bit Score: 35.76  E-value: 2.33e-03
                          10        20        30
                  ....*....|....*....|....*....|...
gi 586798186  172 RCAAHGRvCTECCLARDPYCAWDGV--ACTRFQ 202
Cdd:pfam01437   1 RCSQYTS-CSSCLAARDPYCGWCSSegRCVRRS 32
Sema_plexin_like cd11236
The Sema domain, a protein interacting module, of Plexins and MET-like receptor tyrosine ...
58-171 4.08e-03

The Sema domain, a protein interacting module, of Plexins and MET-like receptor tyrosine kinases; Plexins form a conserved family of transmembrane receptors for semaphorins and may be the ancestor of semaphorins. Ligand binding activates signal transduction pathways controlling axon guidance in the nervous system and other developmental processes including cell migration and morphogenesis, immune function, and tumor progression. Plexins are divided into four types (A-D) according to sequence similarity. In vertebrates, type A Plexins serve as the co-receptors for neuropilins to mediate the signalling of class 3 semaphorins except Sema3E, which signals through Plexin D1. Plexins serve as direct receptors for several other members of the semaphorin family: class 6 semaphorins signal through type A plexins and class 4 semaphorins through type B. Plexin C1 serves as the receptor of Sema7A and plays regulation roles in both immune and nervous systems. This family also includes the Met and RON receptor tyrosine kinases. The Sema domain is located at the N-terminus and contains four disulfide bonds formed by eight conserved cysteine residues. It serves as a ligand-recognition and -binding module.


Pssm-ID: 200497 [Multi-domain]  Cd Length: 401  Bit Score: 39.24  E-value: 4.08e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 586798186  58 FARNHPLmynsvlpTGGRPLF-LQVGANYTFTQIAADRVaaadGHYDVLFIGTDVGTVLKVISVPKGSrpsaeGLLLEEL 136
Cdd:cd11236  303 FNDNCPL-------GGGVPITtSAVLSDSLLTSVAVTTT----RNHTVAFLGTSDGQLKKVVLESSSS-----ATQYETL 366
                         90       100       110
                 ....*....|....*....|....*....|....*
gi 586798186 137 HVFEDSAAVTSMQISSKRHQLYVASRSAVAQIALH 171
Cdd:cd11236  367 LVDSGSPILPDMVFDPDGEHLYVMTPKKVTKVPVE 401
 
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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