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Gène · Cancer
BRCA2
BRCA2 DNA repair associated — The second major hereditary breast and ovarian cancer gene, also central to repairing double-strand DNA breaks.
13q13.1cancerDNA repair
Schéma indicatif uniquement — les proportions des bras sont approximatives et le détail des bandes n'est pas dessiné à l'échelle. Localisation cytogénétique telle que publiée par NCBI Gene.
Ce que fait ce gène
Like BRCA1, BRCA2 helps cells repair breaks that go through both strands of DNA, and inheriting a faulty copy raises cancer risk considerably. Both genes are used as tools in editing research: cells lacking them repair CRISPR cuts differently, which is how researchers study repair pathways in the first place.
BRCA2, at 13q13.1, encodes a protein that loads RAD51 onto resected DNA ends during homologous recombination. Pathogenic variants elevate breast, ovarian, prostate and pancreatic cancer risk; biallelic loss causes Fanconi anaemia subtype D1. In editing research, BRCA2-deficient cells serve as a model for how repair-pathway status determines editing outcome.
Sources
MedlinePlus Genetics, U.S. National Library of Medicine BRCA2 gene ↗
Written by The CRISPR Atlas editorial teamLast updated Aug 19, 2026
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