Tbio COL4A3 Collagen alpha-3(IV) chain

Protein Summary

Description

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. Tumstatin, a cleavage fragment corresponding to the collagen alpha 3(IV) NC1 domain, possesses both anti-angiogenic and anti-tumor cell activity; these two anti-tumor properties may be regulated via RGD-independent ITGB3-mediated mechanisms. 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, Jun 2010]

Uniprot Accession IDs

• Q01955
• Q53QQ1
• Q53R14
• Q53RW8
• Q9BQT2
• Q9NYC4
• Q9UDJ9
• Q9UDK9
• Q9UDL0
• Q9UDL1

Gene Name

• COL4A3

Ensembl ID

• ENST00000396578
• ENSP00000379823
• ENSG00000169031

Symbol

• ATS2
• ATS3

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
gene perturbation	0.92
biological process	0.81
kinase perturbation	0.76
transcription factor perturbation	0.74
molecular function	0.7

Protein Classes

No PANTHER Classes or DTO Classes found

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 394.19   (req: < 5)

Gene RIFs: 99   (req: <= 3)

Antibodies: 274   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 394.19   (req: >= 5)

Gene RIFs: 99   (req: > 3)

Antibodies: 274   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 18

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0