title: GSM3756039: Female_B6_H3K27ac_Repl1_G162_M6; Mus musculus; ChIP-Seq
library_construction_protocol: Liver was dounce homogenized, passed through a 70 micron filter, and then crosslinked with 1% formaldehyde for 10 minutes. Samples were sonicated with a Bioruptor Pico (Diagenode, cat#:B01060010) until the majority of DNA fragments were between 100-400bp (25 cycles total, 30 sec ON 30 sec OFF). Chromatin was quantified and 15 ug of chromatinized DNA was incubated with anti-H3K27ac antibody (Abcam, cat#:ab4729). Samples were prepared for sequencing with NEBNext Ultra II DNA Library Prep Kit for Illumina according to the manufacturer's directions for low input samples (New England Biolabs, #E7645). All samples were subjected to double-sided SPRI size selection prior to PCR amplification (Agencourt AMPure XP; Beckman Coulter: A63882). Samples were barcoded using New England Biolabs NEBNext Multiplex Oligos for Illumina (#E7335) with 8 rounds of PCR per the manufacturer's instructions.
attributes.tag: GEO Accession
attributes.value: GSM3756039