Libraries were prepared using NEBNext Ultra II kits (NEB) following the manufacturer’s protocol. Following library preparation, ChIP samples were purified as described [30 (link)], while input samples were purified using a 2:1 ratio of AmpureXP (GE) beads to library. Following PCR amplification, all samples were purified using AMpure XP beads with 0.9:1 beads to PCR ratio. Samples were sequenced using the Illumina NextSeq 500 platform with paired ends. See S3 and S4 Tables for library statistics.
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