BARD1 (Q99728) variants and mutations

BARD1 (also known as Q99728) is a human protein-coding gene encoding a BRCA1-associated RING domain protein 1 protein. It forms a heterodimer with BRCA1 that supports homologous recombination, DNA-damage signaling, and ubiquitin-dependent regulation at damaged chromatin. Germline loss-of-function variants confer increased breast-cancer susceptibility, particularly for some aggressive subtypes. This analysis covers 2,631 BARD1 variants and mutations. Of these, 74% have computational variant effect predictions. Disease context includes Hereditary breast cancer, hereditary breast carcinoma, and BARD1-related cancer predisposition. Example BARD1 variants include M1I, M1T, and M1V.

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.

Notable BARD1 variants

Examples include M1I, M1T, M1V, P2A, P2L, P2R, P2S, D3A. Listed records include available protein-change notation, database identifiers, clinical classifications, computational predictions, population evidence, experimental measurements, and disease context.