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COL3A1

Chr 2q32.2

collagen type III alpha 1 chain

MANE:
ENST00000304636.9

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Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Bleeding and platelet disorders

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Cerebral vascular malformations

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Ehlers Danlos syndrome with a likely monogenic cause

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Familial cerebral small vessel disease

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Fetal anomalies

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Malformations of cortical development

    BIALLELIC, autosomal or pseudoautosomal
  • Pneumothorax - familial

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Thoracic aortic aneurysm or dissection

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • Ehlers-Danlos syndrome, vascular type

    0.86
  • polymicrogyria with or without vascular-type Ehlers-Danlos syndrome

    0.79
  • autosomal dominant Ehlers-Danlos syndrome, vascular type

    0.71
  • familial thoracic aortic aneurysm and aortic dissection

    0.60
  • Ehlers-Danlos syndrome

    0.59
  • Dupuytren Contracture

    0.59
  • Rare disease with thoracic aortic aneurysm and aortic dissection

    0.56
  • Familial hemophagocytic lymphohistiocytosis

    0.53
  • Abnormality of the cardiovascular system

    0.52
  • Skin ulcer

    0.46

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

Protein function (UniProt)

Collagen alpha-1(III) chain

Collagen type III occurs in most soft connective tissues along with type I collagen. Involved in regulation of cortical development. Is the major ligand of ADGRG1 in the developing brain and binding to ADGRG1 inhibits neuronal migration and activates the RhoA pathway by coupling ADGRG1 to GNA13 and possibly GNA12

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.