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Details on Person UniProt:P08572 COL4A2

Class:IdReferenceGeneProduct:51162
_chainChangeLogsignal peptide:1-25 added on Fri February 6 2015;propeptide:26-183 added on Fri February 6 2015;chain:184-1712 added on Fri February 6 2015;chain:1486-1712 added on Fri February 6 2015
_displayNameUniProt:P08572 COL4A2
_timestamp2024-11-03 20:09:24
chainsignal peptide:1-25
propeptide:26-183
chain:184-1712
chain:1486-1712
checksumE0DABEEAB349D8AF
commentFUNCTION Type IV collagen is the major structural component of glomerular basement membranes (GBM), forming a 'chicken-wire' meshwork together with laminins, proteoglycans and entactin/nidogen.FUNCTION Canstatin, a cleavage product corresponding to the collagen alpha 2(IV) NC1 domain, possesses both anti-angiogenic and anti-tumor cell activity. It inhibits proliferation and migration of endothelial cells, reduces mitochondrial membrane potential, and induces apoptosis. Specifically induces Fas-dependent apoptosis and activates procaspase-8 and -9 activity. Ligand for alphavbeta3 and alphavbeta5 integrins.SUBUNIT There are six type IV collagen isoforms, alpha 1(IV)-alpha 6(IV), each of which can form a triple helix structure with 2 other chains to generate type IV collagen network. Interacts with EFEMP2 (By similarity).INTERACTION Alpha chains of type IV collagen have a non-collagenous domain (NC1) at their C-terminus, frequent interruptions of the G-X-Y repeats in the long central triple-helical domain (which may cause flexibility in the triple helix), and a short N-terminal triple-helical 7S domain.PTM Prolines at the third position of the tripeptide repeating unit (G-X-Y) are hydroxylated in some or all of the chains.PTM Type IV collagens contain numerous cysteine residues which are involved in inter- and intramolecular disulfide bonding. 12 of these, located in the NC1 domain, are conserved in all known type IV collagens.PTM The trimeric structure of the NC1 domains is stabilized by covalent bonds between Lys and Met residues.PTM Proteolytic processing produces the C-terminal NC1 peptide, canstatin.DISEASE The disease is caused by variants affecting the gene represented in this entry.DISEASE Disease susceptibility is associated with variants affecting the gene represented in this entry.SIMILARITY Belongs to the type IV collagen family.
descriptionrecommendedName: fullName evidence="13"Collagen alpha-2(IV) chain component recommendedName: Canstatin /component
geneNameCOL4A2
identifierP08572
isSequenceChangedFALSE
keyword3D-structure
Angiogenesis
Basement membrane
Bromination
Collagen
Direct protein sequencing
Disease variant
Disulfide bond
Extracellular matrix
Glycoprotein
Hydroxylation
Proteomics identification
Reference proteome
Repeat
Secreted
Signal
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
nameCOL4A2
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8992963] ENSEMBL:ENSG00000134871 COL4A2 [Homo sapiens]
secondaryIdentifierCO4A2_HUMAN
Q14052
Q548C3
Q5VZA9
Q66K23
sequenceLength1712
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:215926] COL4A2(184-1712) [extracellular region] [Homo sapiens]
[EntityWithAccessionedSequence:1980177] COL4A2(26-1712) [endoplasmic reticulum lumen] [Homo sapiens]
[EntityWithAccessionedSequence:2022089] 3x4Hyp-COL4A2(26-1712) [endoplasmic reticulum lumen] [Homo sapiens]
[EntityWithAccessionedSequence:2022422] 3Hyp-COL4A2(26-1712) [endoplasmic reticulum lumen] [Homo sapiens]
[EntityWithAccessionedSequence:2022478] 5Hyl-COL4A2(26-1712) [endoplasmic reticulum lumen] [Homo sapiens]
[EntityWithAccessionedSequence:2022524] 3x4Hyp-3Hyp-COL4A2(26-1712) [endoplasmic reticulum lumen] [Homo sapiens]
[EntityWithAccessionedSequence:2022964] 3x4Hyp-3Hyp-5Hyl-COL4A2(26-1712) [endoplasmic reticulum lumen] [Homo sapiens]
[EntityWithAccessionedSequence:2022983] 3x4Hyp-5Hyl-COL4A2(26-1712) [endoplasmic reticulum lumen] [Homo sapiens]
[EntityWithAccessionedSequence:2023517] GalHyl-COL4A2(26-1712) [endoplasmic reticulum lumen] [Homo sapiens]
[EntityWithAccessionedSequence:2023568] 3x4Hyp-3Hyp-GalHyl-COL4A2(26-1712) [endoplasmic reticulum lumen] [Homo sapiens]
List all 65 refering instances
(referenceSequence)[ModifiedResidue:2022079] (2S,4R)-4-hydroxyproline at unknown position
[ModifiedResidue:2022434] (2S,3S)-3-hydroxyproline at unknown position
[ModifiedResidue:2022502] (2S,5R)-5-hydroxylysine at unknown position
[ModifiedResidue:2023531] O5-galactosyl-L-hydroxylysine at unknown position
[ModifiedResidue:2023623] O5-glucosylgalactosyl-L-hydroxylysine at unknown position
[GroupModifiedResidue:2682386] (2S,5R)-5-hydroxylysine (sulfilimine bond) at unknown position
[GroupModifiedResidue:2682395] (2S,5R)-5-hydroxylysine (sulfilimine bond) at unknown position
[GroupModifiedResidue:2682406] (2S,5R)-5-hydroxylysine (sulfilimine bond) at unknown position
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No pathways have been reviewed or authored by UniProt:P08572 COL4A2 (51162)