Both CDK1 and COL1A1 are often amplified in breast cancer and high CDK1 mRNA expression significantly correlates with poor prognosis in breast cancer, with trend but not significant effects of both genes on survival of TNBC, possibly due to a smaller number of TNBC patients (Supplementary Fig. S3B–C). The gene discussed is COL1A1; the disease is breast carcinoma.