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HPS1

Chr 10q24.2

HPS1 biogenesis of lysosomal organelles complex 3 subunit 1

Aliases:
BLOC3S1
MANE:
ENST00000361490.9

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Albinism or congenital nystagmus

    BIALLELIC, autosomal or pseudoautosomal
  • Bleeding and platelet disorders

    BIALLELIC, autosomal or pseudoautosomal
  • COVID-19 research

    BIALLELIC, autosomal or pseudoautosomal
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Familial pulmonary fibrosis

    BIALLELIC, autosomal or pseudoautosomal
  • Gastrointestinal epithelial barrier disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Infantile enterocolitis & monogenic inflammatory bowel disease

    BIALLELIC, autosomal or pseudoautosomal
  • Inherited bleeding disorders

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • Hermansky-Pudlak syndrome

    0.82
  • Hermansky-Pudlak syndrome with pulmonary fibrosis

    0.74
  • oculocutaneous albinism

    0.47
  • inflammatory bowel disease

    0.47
  • pulmonary fibrosis

    0.47
  • Abnormal bleeding

    0.46
  • hereditary disease

    0.42
  • lung disorder

    0.37
  • pulmonary vascular congestion

    0.26
  • benign prostatic hyperplasia

    0.22

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

Protein function (UniProt)

BLOC-3 complex member HPS1

Component of the BLOC-3 complex, a complex that acts as a guanine exchange factor (GEF) for RAB32 and RAB38, promotes the exchange of GDP to GTP, converting them from an inactive GDP-bound form into an active GTP-bound form. The BLOC-3 complex plays an important role in the control of melanin production and melanosome biogenesis and promotes the membrane localization of RAB32 and RAB38 (PubMed:23084991)

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.