“…TopoIIα prevents UFBs in anaphase by resolving catenated centromeric DNA. 19 , 20 Thus, we examined whether αChT and proper H3K27me3/H4K20me3 modifications contribute to this centromere TopoIIα function. We compared the TopoIIα replaced cell lines either before endogenous TopoIIα depletion (-Aux) or after depletion and induction of wt or ChTΔ (+Aux +Dox).…”