Summary: Seminal vesicle autoantigen (SVA)
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Seminal vesicle autoantigen (SVA) Provide feedback
This family consists of seminal vesicle autoantigen and prolactin-inducible (PIP) proteins. Seminal vesicle autoantigen (SVA) is specifically present in the seminal plasma of mice. This 19-kDa secretory glycoprotein suppresses the motility of spermatozoa by interacting with phospholipid. PIP, has several known functions. In saliva, this protein plays a role in host defence by binding to microorganisms such as Streptococcus. PIP is an aspartyl proteinase and it acts as a factor capable of suppressing T-cell apoptosis through its interaction with CD4 .
Yoshida M, Kaneko M, Kurachi H, Osawa M; , Biochem Biophys Res Commun 2001;281:94-100.: Identification of two rodent genes encoding homologues to seminal vesicle autoantigen: a gene family including the gene for prolactin-inducible protein. PUBMED:11178965 EPMC:11178965
This tab holds annotation information from the InterPro database.
InterPro entry IPR007990
Prolactin-inducible (PIP) is a 17 kDa glycoprotein that binds to many proteins including fibrinogen, actin, keratin, myosin, immunoglobulin G, CD4, and human zinc-alpha-2 glycoprotein [PUBMED:22209935]. It forms a complex with human serum albumin (HSA) in seminal plasma and may affect male fertility/infertility [PUBMED:22209935]. It also acts as a factor capable of suppressing T-cell apoptosis through its interaction with CD4 [PUBMED:11178965].
The mapping between Pfam and Gene Ontology is provided by InterPro. If you use this data please cite InterPro.
|Cellular component||extracellular region (GO:0005576)|
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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. The superfamily can be divided into discrete structural sets, by the presence or absence of beta-strands in the structure and the length of the domains . Proteins containing domains of the C1 and V-sets are mostly molecules of the vertebrate immune system. Proteins of the C2-set are mainly lymphocyte antigens, this differs from the composition of the C2-set as originally proposed . The I-set is intermediate in structure between the C1 and V-sets and is found widely in cell surface proteins as well as intracellular muscle proteins.
The clan contains the following 28 members:A2M Adeno_E3_CR1 Adhes-Ig_like C1-set C2-set C2-set_2 DUF1968 Herpes_gE Herpes_gI Herpes_glycop_D I-set ICAM_N ig Ig_2 Ig_3 Ig_4 Ig_5 Ig_Tie2_1 Izumo-Ig K1 Marek_A PTCRA Receptor_2B4 SVA UL141 V-set V-set_2 V-set_CD47
We make a range of alignments for each Pfam-A family:
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Curation and family details
|Seed source:||Pfam-B_7065 (release 7.7)|
|Number in seed:||11|
|Number in full:||56|
|Average length of the domain:||117.20 aa|
|Average identity of full alignment:||40 %|
|Average coverage of the sequence by the domain:||83.69 %|
|HMM build commands:||
build method: hmmbuild -o /dev/null HMM SEED
search method: hmmsearch -Z 11927849 -E 1000 --cpu 4 HMM pfamseq
|Family (HMM) version:||8|
|Download:||download the raw HMM for this family|
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There are 2 interactions for this family. More...
We determine these interactions using iPfam, which considers the interactions between residues in three-dimensional protein structures and maps those interactions back to Pfam families. You can find more information about the iPfam algorithm in the journal article that accompanies the website.
For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the PDBe group, to allow us to map Pfam domains onto UniProt sequences and three-dimensional protein structures. The table below shows the structures on which the SVA domain has been found. There are 1 instances of this domain found in the PDB. Note that there may be multiple copies of the domain in a single PDB structure, since many structures contain multiple copies of the same protein seqence.
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