ChIPs were performed from 5–10×106 cross-linked cells and sequencing libraries were prepared as previously described52 (link). The following antibodies were used for ChIP: rabbit anti-H3K4me1 (Abcam #8895), rabbit anti-H3K27ac (Abcam #4729), rabbit anti-c-Fos (Santa Cruz #sc-52), rabbit anti-FOSL1/Fra-1 (Santa Cruz #sc-605). ChIP-seq libraries were sequenced on the HiSeq 2000 or 2500 platform at the Case Western Reserve University Genomics Core Facility.
Analysis was performed as previously described8 (link).