In addition, we detected a novel, very rare 53BP1 6bp deletion (1347_1352delTATCCC) showing an inverse association with breast cancer risk (age-adjusted odds ratio (OR) = 0.61, 95% confidence interval (CI) = 0.22 to 1.68), lacking significance (P = 0.34). The gene discussed is TP53BP1; the disease is breast carcinoma.