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Gene mutations that can increase the risk of breast cancer. Abbreviations: BRCA = breast cancer gene; PI3KCA = phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha; TP53 = tumor protein p53; CHECK2 = checkpoint kinase 2; ATM = ataxia-telangiectasia mutated; BRIP1 = BRCA1 interacting protein.
