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Gen · 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
Alleen schematisch — de verhoudingen van de armen zijn bij benadering en de banddetails zijn niet op schaal getekend. Cytogenetische locatie zoals gepubliceerd door NCBI Gene.
Wat dit gen doet
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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