Tamoxifen treatment triggered expression of GFP in CK8-positive epithelial cells (SI Appendix, Fig. S1H) and led to the formation of GFP-positive ovarian tumors with similar histological and transcriptional features as observed in wild-type (WT) mice harboring tumors of the same genotype (SI Appendix, Fig. S1 I–K). The gene discussed is KRT8; the disease is ovarian neoplasm.