For ChIP-Seq, and cross-linked with 1% formaldehyde (methanol-free, Pierce, Rockford, IL) at room temperature for 10 min. After sonication, fragmented chromatin equivalent to 10 million cells was immunoprecipitated with control rabbit IgG or indicated antibodies and Magna ChIPTM Protein A+G Magnetic Beads (Millipore, Billerica MA). ChIP-Seq DNA libraries were prepared using KAPA LTP Library Preparation Kit (Kapa Biosystems, Wilmington, MA) and indexed primers (BIOO Scientific, Austin, TX), and the libraries were then sequenced. For RNA-Seq, KAPA Stranded RNA-Seq Library Preparation Kit (KAPA Biosystems, Wilmington, MA), and each library was indexed using barcoded primers (BIOO Scientific, Austin, TX). Barcoded PCR products were purified on 2% E-Gel, 250-400 bp fragments were purified, quantified on Qbit (Invitrogen), mixed, and sequenced on HiSeq2000 platform. PCR products were barcoded (indexed) and sequenced on HiSeq 2000 platform.