These include tumors associated with genetic alterations in RAD51C, PALB2, BARD1, RAD51D, and CHEK2, and recent studies report that HRD could be caused by germline mutations in ATM, BAP1, CDK12, and FANCM29. The gene discussed is CDK12; the disease is hypoparathyroidism-retardation-dysmorphism syndrome.