To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S5 DIC time-lapse imaging of stable cell line expressing EGFP (Ctr) under asynchronous conditions. Imaging was done as detailed for movie S1. Overexpression of PP1–NIPP1 limits the capacity of cells to repair DNA double-strand breaks Claudia Winkler, Raphael Rouget, Dan Wu, Monique Beullens, Aleyde Van Eynde, and Mathieu Bollen J Cell Sci 2018. 131:None-None; doi: 10.1242/jcs.214932 Download Original Video