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COL4A3

Chr 2q36.3

collagen type IV alpha 3 chain

MANE:
ENST00000396578.8

Annotations refreshed 10 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • DDG2P

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Haematuria

    BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
  • Proteinuric renal disease

    BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
  • Unexplained kidney failure in young people

    BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
  • Cystic kidney disease

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Fetal anomalies

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Intellectual disability

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Monogenic hearing loss

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Disease associations (Open Targets)

  • autosomal dominant Alport syndrome

    0.81
  • Alport syndrome 3b, autosomal recessive

    0.79
  • Alport syndrome

    0.79
  • autosomal recessive Alport syndrome

    0.75
  • Hematuria

    0.70
  • Benign familial neonatal seizures

    0.68
  • Dupuytren Contracture

    0.59
  • hematuria, benign familial, 2

    0.57
  • hematuria, benign familial, 1

    0.55
  • hereditary disease

    0.53

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

Collagen alpha-3(IV) chain

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

Curated MONDO disease pages that list COL4A3 among their top associated genes.

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.