Basal-like breast tumors were seen in 42.0% of patients who had low BECN1 but high BRCA1 expression but in only 0.7% of patients who had high BECN1 but low BRCA1 expression (P = 9.05E− 17 for the difference between groups) (Supplementary Fig. 1A). The gene discussed is BRCA1; the disease is breast neoplasm.