Many of the mutations in these genes cause inherited cancer; among those associated with breast cancer are BRCA1, BCRA2, ATM, TP53, PTEN, STK11, CDH1, MLH1, MSH2, MSH6, PMS1, PMS2, FANCE, FANCF and FANCG [2]. The gene discussed is BRCA1; the disease is breast carcinoma.