title: GSM6149797: SiHa,hnRNP E1,biol rep 3; Homo sapiens; ChIP-Seq
library_construction_protocol: Cells were fixed with 1% formaldehyde for 10 minutes. After quenching and cell lysis, chromatin was sonicated using a E220 focused-ultrasonicator (Covaris). Cells were fixed with 1% formaldehyde for 10 minutes. After quenching and cell lysis, cross-linked DNA was sonicated and ranged in size from 200 to 900 bp.