Whole genome ChIP using MV4-11 cells was performed under conditions described previously (Boyer et al., 2005) using 2-4×107 cells per IP with specific antibodies ChIP-seq libraries were prepared according to the Illumina protocol and sequenced using Illumina HiSeq. Sequencing was carried out at the Stanford Genome Center using Illumina HiSeq 2000. The read length is 50bp.