GSM1171653: Hela Input 20G2C12 12278; Homo sapiens; ChIP-Seq
Cells were fixed for 10min at RT in 1% formaldehyde, harvested using a cell scraper, washed once in ice-cold PBS, and resuspended in RIPA buffer with protease inhibitor. The sample was then sonicated using an 3.2mm microtip (QSonica Sonicator 4000) at 30s on 30s off intervals and 40% amplitude for 180min while in a -30C 3:1 isopropanol and water bath containing dry ice. Subsequent steps were performed as per the standard protocol. DNA was size-selected during library building to an average fragment size of 200bp. Libraries were sequenced using Illumina HiSeq 2000. Libraries were generated following Illumina's DNA Sample Prep Kit protocol