Immunoblotting and qPCR were done exactly as described previously (Jana et al. 2017 (link)). We used anti-Pus10 (HPA049582, Sigma) antibody for the immunoblots shown in Figure 3C and Supplemental Figure S5B. We also used another commercial anti-Pus10 (HPA044736, Sigma) antibody, but it showed too many nonspecific bands in both nuclear and cytoplasmic extracts and was not useful. Anti-HisTag antibody (2365S, Cell Signaling) was used to check for overexpressed Pus10.