The mRNA levels of amplified genes tended to be higher in breast tumors than in the healthy state, although this difference reached statistical significance only for UBE2T, BIRC5, UBE2C, and TCEB2. Also, with the exception of TCEB2, gene expression and protein levels tended to be highest in basal-like tumors and lowest in luminal A tumors. The gene discussed is BIRC5; the disease is breast neoplasm.