Immunoblots were carried out as described by our group [23 ,24 (link)]. Original immunoblots see File S1. Antibodies used for this assay were: BCL-XL (#ab32370), survivin (#ab134170), p21 (#ab109520), BAX (#ab32503), BAK (#ab32371), BIM (#ab32158), HDAC3 (#ab32369), GAPDH (#ab128915) from Abcam, Cambridge, UK; MCL-1 (#sc-819), HDAC8 (#sc-374180), HSP90 (#sc-13119), vinculin (#sc-73614) from Santa Cruz Biotechnology, Heidelberg, Germany; cleaved caspase-3 (#cs9661), PARP1 (#cs9542), BID (#cs2002), HDAC1 (#cs34589), HDAC2 (#cs5113), histone H3 (#cs14269), ac-histone H3 (K9) (#cs9649), ac-histone H3 (K18) (#cs9675), ac-histone H3 (K27) (#cs8173) from Cell Signaling, Leiden, The Netherlands; ac-tubulin (#T7451) from Sigma-Aldrich, Taufkirchen, Germany; ac-histone H3 (#06-599) from Merck Millipore, Burlington, MA, USA; and NOXA (#ALX-804-408) from Enzo Life Sciences, New York, NY, USA. HSP90, GAPDH, and vinculin served as independent housekeeping proteins to normalize protein loading. The protein ladders used were the PageRulerTM pre-stained protein ladder (#26616) and the PageRulerTM Plus pre-stained protein ladder (#26619) from Thermo Fischer Scientific, Waltham, MA, USA.
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