Along with defects in BRCA1 and BRCA2, other genes that function in homologous recombination repair (HRR) are mutated in ovarian cancer, albeit at lower frequencies, including RAD51C, RAD51D, BRIP1, PALB2, and ATM (Pennington et al., 2014). The gene discussed is RAD51C; the disease is ovarian carcinoma.