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GenoLensGenoLens

GJA8

Chr 1q21.2

gap junction protein alpha 8

Aliases:
CX50
MANE:
ENST00000369235.2

Annotations refreshed 10 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Bilateral congenital or childhood onset cataracts

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • DDG2P

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Fetal anomalies

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Structural eye disease

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Corneal abnormalities

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Intellectual disability

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown

Disease associations (Open Targets)

  • Cataract-microcornea syndrome

    0.83
  • cataract - microcornea syndrome

    0.63
  • Developmental cataract

    0.55
  • hereditary disease

    0.50
  • cataract

    0.41
  • early-onset nuclear cataract

    0.40
  • Total congenital cataract

    0.40
  • Cataract with Y-shaped suture opacities

    0.40
  • pulverulent cataract

    0.40
  • Isolated congenital sclerocornea

    0.37

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

Protein function (UniProt)

Gap junction alpha-8 protein

Structural component of eye lens gap junctions (PubMed:18006672, PubMed:19756179). Gap junctions are dodecameric channels that connect the cytoplasm of adjoining cells. They are formed by the docking of two hexameric hemichannels, one from each cell membrane (By similarity). Small molecules and ions diffuse from one cell to a neighboring cell via the central pore (PubMed:18006672, PubMed:19756179)

Curated MONDO disease pages that list GJA8 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.