Lysates were clarified from sonicated nuclei and protein-DNA complexes were isolated with antibodies againts the spcific proteins of interest in each case. DNA libraries were prepared using the Illumina TruSeq RNA sample preparation Kit v2 starting from the end repair step of the protocol. Up to 100 ng ChIP DNA was used as starting material. After end repair and A-tailing, indexing adapters were ligated. The products were then purified and amplified for 18 PCR cycles to create the final libraries.