D Co-immunoprecipitation of EGFP-tagged E2F7/8 with CDH1-Flag after 48 hours of co-expression in 293T cells. Cells were treated with 10 µM MG132 for 5 hours prior to harvesting to limit immediate proteasomal degradation of E2F7/8 after binding to CDH1. Immunoblots are representative examples of three independent experiments. Asterisks indicate IgG bands; arrow indicates the CDH1-Flag band 