Western blotting was carried out as previously described, using LI-COR Odyssey (LI-COR Biosciences) (Liu and Secombe 2015 (link)). Antibodies used were anti-phospho-histone H3 (#9701, 1:1000; Cell Signaling Technology), anti-histone H3 (#39763 or #39163, 1:5000; Active Motif), anti-α-tubulin (1:5000; Developmental Studies Hybridoma Bank, University of Iowa). The rabbit polyclonal KDM5 antibody was raised to amino acids 1418–1760 and has been previously published (Secombe et al. 2007 (link)).