show Abstracthide AbstractChromaitn immunoprecipitation of HB1119 cells was performed using Fractionation-assisted native chromatin immunoprecipitation method.Specific antibodies for BRD4, CyclinT1, CDK9, H3K27ac, H3K18ac, RNAP2 Ser5-P and RNAP2 Ser2-P were used for IP. The ChIPed DNAs were analyzed by deep sequencing.