library_construction_protocol: Muscle-derived cells were isolated by FACS and immediatly processed to isolate histone-DNA complexes with H3K9/14ac and H3K27ac antibodies from sonicated nuclei (ChIP-seq) and to harvest RNA using Trizol reagent (RNA-seq). DNA and RNA libraries were prepared for sequencing using standard Illumina protocols and sequenced on Illumina Hiseq2500 platform.