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Description for Protein COL4A3

collagen, type IV, alpha 3 (Goodpasture antigen)
17 total interacting proteins; 6 platelet interacting proteins
Icon Book Platelet Evidence (proteome studies/others : 0/0)
(Not detected in platelets)
Summary:
Type IV collagen, the major structural component of basement membranes, is a multimeric protein composed of 3 alpha subunits. These subunits are encoded by 6 different genes, alpha 1 through alpha 6, each of which can form a triple helix structure with 2 other subunits to form type IV collagen. This gene encodes alpha 3. In the Goodpasture syndrome, autoantibodies bind to the collagen molecules in the basement membranes of alveoli and glomeruli. The epitopes that elicit these autoantibodies are localized largely to the non-collagenous C-terminal domain of the protein. A specific kinase phosphorylates amino acids in this same C-terminal region and the expression of this kinase is upregulated during pathogenesis. This gene is also linked to an autosomal recessive form of Alport syndrome. The mutations contributing to this syndrome are also located within the exons that encode this C-terminal region. Like the other members of the type IV collagen gene family, this gene is organized in a head-to-head conformation with another type IV collagen gene so that each gene pair shares a common promoter. [provided by RefSeq] (PubMed Links)
Domains and Motifs:
  • SP: Signal Peptide
  • COLL: Collagen triple helix repeat (20 copies)
  • C4: C-terminal tandem repeated domain in type 4 procollagens
    • Gene Ontology:
    Gene Ontology Annotations
    KEGG - Enzyme ID(s):
    None Available
    KEGG - Orthology:
    None Available
    KEGG - Pathway(s):
    None Available
    Nomenclature / Alternative Names:
    GP V; Alpha 3 type IV collagen isoform 2; Alpha 3 type IV collagen isoform 4; Alpha 3 type IV collagen isoform 5; Tumstatin; Goodpasture antigen
    Approved Symbol:
    COL4A3
    (De-) Phosphorylations:
    Total (de-) phosphorylation sites: 3
    Human (de-) phosphorylation sites: 3; No platelet phosphorylation sites
    Phosphorylation Targets:
    Total phosphorylation targets: 0
    Human phosphorylation targets: 0;Predicted platelet targets: 0
    		Protein Characteristics:
    Isoform-specific Information
    Icon DrugsAssociated Drugs (DrugBank Accession):

    None Available

    Associated Genetic Diseases:

  • Alport syndrome, autosomal recessive(Pd);
  • Hematuria, benign familial(Pd)
    		• Predicted Transmembrane Domains:
  • Isoform 6 : 0
  • Isoform 5 : 0
  • Isoform 4 : 0
  • Isoform 3 : 0
  • Isoform 2 : 0
  • Isoform 1 : 0
    • Additional Identifiers:

    HPRD: 00354 Entrez Gene ID: 1285 OMIM ID: 120070 Swissprot Accession: Q01955;