Atlas One · Host Biology · Scale 03 — Molecular

BRCA1

Tumor suppressor with RING-BRCT architecture; BARD1 heterodimer confers E3 ubiquitin ligase activity for homologous recombination (HR). Germline mutations: 70% lifetime breast and 40% ovarian cancer risk. Loss creates PARP inhibitor (olaparib) synthetic lethality.

Also known as: BRCA1 protein, breast cancer type 1 susceptibility, BRCAI, BRCA-1

Scale 03 — MolecularScale
draftStatus
2026-06-06Last Reviewed
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brca1

BRCA1

Tumor suppressor with RING-BRCT architecture; BARD1 heterodimer confers E3 ubiquitin ligase activity for homologous recombination (HR). Germline mutations: 70% lifetime breast and 40% ovarian cancer risk. Loss creates PARP inhibitor (olaparib) synthetic lethality.