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ATP6V1B2

Chr 8p21.3

ATPase H+ transporting V1 subunit B2

Aliases:
VATB, Vma2, HO57
MANE:
ENST00000276390.7

Annotations refreshed 9 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • DDG2P

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

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Monogenic hearing loss

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

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted

Disease associations (Open Targets)

  • Zimmermann-Laband syndrome 2

    0.69
  • Autosomal dominant deafness-onychodystrophy syndrome

    0.64
  • Zimmermann-Laband syndrome

    0.64
  • autosomal dominant deafness - onychodystrophy syndrome

    0.62
  • neurodegenerative disease

    0.57
  • deafness-onychodystrophy syndrome

    0.56
  • Alzheimer disease

    0.52
  • Parkinson disease

    0.52
  • lysosomal storage disease

    0.52
  • multiple sclerosis

    0.52

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

Protein function (UniProt)

V-type proton ATPase subunit B, brain isoform

Non-catalytic subunit of the V1 complex of vacuolar(H+)-ATPase (V-ATPase), a multisubunit enzyme composed of a peripheral complex (V1) that hydrolyzes ATP and a membrane integral complex (V0) that translocates protons (PubMed:33065002). V-ATPase is responsible for acidifying and maintaining the pH of intracellular compartments and in some cell types, is targeted to the plasma membrane, where it promotes acidification of the extracellular environment (PubMed:32001091). The V-ATPase complex also acts as an activator for mTORC1 on lysosomal membrane by promoting the guanine nucleotide exchange factor (GEF) of the Ragulator complex, thereby enabling mTORC1 recruitment (PubMed:22053050). In renal intercalated cells, can partially compensate the lack of ATP6V1B1 and mediate secretion of protons (H+) into the urine under base-line conditions but not in conditions of acid load (By similarity)

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.