title: GSM1622636: VCaP-ChIPseq-Pol2-Re-rep1; Homo sapiens; ChIP-Seq
library_construction_protocol: Nuclei from approximately 10 million formaldehyde crosslinked (1%; 10min at room temperature for VCaP cells, and 8min. at room temperature for K562 cells)  cells were isolated and chromatin was fragmented using sonicator (bioruptor). Lysates were cleared and protein-DNA complexes were isolated using target specific antibodies and protein-A/G magnetic beads. DNA fragments were purified and libraries were prepared accorcing to standard Illumina protocol. Samples were sequenced at BGI Tech Solutions (Shenzhen, China) or at the Gene Core in EMBL (Heidelberg, Germany).
attributes.tag: GEO Accession
attributes.value: GSM1622636