Medium protein expressions of REV1 were observed in urinary bladder, breast, prostate and endometrium normal tissues, while not detected (breast cancer, endometrial carcinoma) or low (urothelial carcinoma, prostate adenocarcinoma) protein expressions of REV1 were observed in corresponding cancer tissues (Figures 7A,B,D,F). This evidence concerns the gene REV1 and breast cancer.