(Fig. 1c). Next, we incubated recombinant RSF1-V5 with recombinant His-PLK1 purified from insect cells; pull-down assays with anti-V5 antibody verified that PLK1 directly bound RSF1 (Fig. 1d), indicating that RSF1 is a bona fide PLK1-interacting protein. It is of note that SNF2H is...