Cells were fixed with 1% formaldehyde. Cell lysis was performed using the following buffers: total cell lysis - 5mM PIPES pH 8, 85mM KCl, 0.5% NP-40, 1X protease inhibitor cocktail, 1mM PMSF, and nuclear lysis – 50mM Tris, 10mM EDTA, 1% SDS, 1X protease inhibitor cocktail, 1mM PMSF. After sonication (Covaris E220 sonicator), immunoprecipitation was performed using Protein A/G Dynabeads (Life Technologies) For ChIP-Seq experiments, sequencing libraries were prepared from immunoprecipitated chromatin using the TruSeq DNA kit from Illumina according to the manufacturer’s instructions and sequenced using the TruSeq PE Clusterkit v3-cBot-HS. For RNA-Seq, libraries were prepared from RNA extracts using the TruSeq Stranded mRNA kit from Illumina according to the manufacturer’s instructions and sequenced using using the TruSeq PE Clusterkit v3-cBot-HS