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ABCG8

Chr 2p21

ATP binding cassette subfamily G member 8

Aliases:
GBD4
MANE:
ENST00000272286.4

Annotations refreshed 9 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Bleeding and platelet disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Familial hypercholesterolaemia

    BIALLELIC, autosomal or pseudoautosomal
  • Inherited bleeding disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BIALLELIC, autosomal or pseudoautosomal
  • Rare anaemia

    BIALLELIC, autosomal or pseudoautosomal
  • Sitosterolaemia

    BIALLELIC, autosomal or pseudoautosomal
  • Undiagnosed metabolic disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Cytopenia - NOT Fanconi anaemia

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • sitosterolemia

    0.81
  • sitosterolemia 1

    0.74
  • cholelithiasis

    0.69
  • Hypercholesterolemia

    0.65
  • Abnormality of the cardiovascular system

    0.56
  • Disorder of lipid metabolism

    0.55
  • Cholecystitis

    0.54
  • gallstones

    0.53
  • response to statin

    0.52
  • metabolic disease

    0.52

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

Protein function (UniProt)

ATP-binding cassette sub-family G member 8

ABCG5 and ABCG8 form an obligate heterodimer that mediates Mg(2+)- and ATP-dependent sterol transport across the cell membrane. Plays an essential role in the selective transport of the dietary cholesterol in and out of the enterocytes and in the selective sterol excretion by the liver into bile (PubMed:11099417, PubMed:11452359, PubMed:15054092, PubMed:27144356). Required for normal sterol homeostasis (PubMed:11099417, PubMed:11452359, PubMed:15054092). The heterodimer with ABCG5 has ATPase activity (PubMed:16893193, PubMed:20210363, PubMed:27144356)

Curated MONDO disease pages that list ABCG8 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.