ATP6V0A4 (Q9HBG4) variants and mutations

ATP6V0A4 (also known as Q9HBG4) is a human protein-coding gene encoding a v-type proton ATPase 116 kDa subunit a 4 protein. A membrane subunit of the V-type proton pump in kidney cells that helps acidify urine. Variants can cause distal renal tubular acidosis, sometimes with hearing loss. This analysis covers 1,160 ATP6V0A4 variants and mutations. Of these, 96% have computational variant effect predictions. Disease context includes renal tubular acidosis, distal, 3, with or without sensorineural hearing loss, autosomal recessive distal renal tubular acidosis, and hereditary disease. Example ATP6V0A4 variants include V2A, V2E, and V2G.

Variant analysis overview

Variant and mutation evidence

Clinical, disease, and population context

Protein structure and variant hotspots

Data sources

Evidence in this analysis draws on EBI Proteins Variation, UniProt, gnomAD v4, EuropePMC, 3D Hotspot Analysis, Interaction Network Analysis, Protein Data Bank, AlphaFold DB, gnomAD constraint, Open Targets, ClinGen, MaveDB, LitVar.

Diseases linked to ATP6V0A4

Notable ATP6V0A4 variants

Examples include V2A, V2E, V2G, R6*, R6Q, S7N, S7R, E8*. Listed records include available protein-change notation, database identifiers, clinical classifications, computational predictions, population evidence, experimental measurements, and disease context.