ChIP procedure is described in Supplementary Methods. The libraries were constructed from 3–10 ng of ChIP samples or 50 ng of input samples using NEBNext Ultra II DNA Library Prep Kit for Illumina (New England Biolabs), and quantified using GenNext NGS Library Quantification kit (Toyobo). The fragment length of libraries was assessed using 2200 TapeStation (Agilent). Seventy-five base-pair single-read sequencing was performed on an Illumina NextSeq 500. The MM.1S ChIP-seq data for H3K27Ac (GSM894083), H3K27me3 (GSM1252088), MYC (GSM894108), CDK7 (GSM1121098), CDK9 (GSM1085735) and RNAPII (GSM1070127) were downloaded from NCBI (8 (link),65 (link),66 (link)). Detailed ChIP-seq analysis is descrbed in Supplementary Methods. The ChIP-seq data in this study have been deposited in the GEO database under accession number GSE148046.