title: GSM1684639: ChIP-seq, H3K27Ac_HighDensity_noDMI; Homo sapiens; ChIP-Seq
library_construction_protocol: Cell pellets were prepared from 1.8x106 cells, crosslinked in 1 % formaldehyde for 15 minutes. A 5 minute quench was performed with 125mM glycine. Cells were harvested from 10 or 15cm dishes in DPBS using a cell scraper. To prepare ChIP extracts, nuclei were suspended SDS lysis buffer (50 mM HEPES/NaOH pH 7.5, 1% SDS, 10 mM EDTA, Complete protease inhibitor), incubated at 4 C for 10 min, and subjected to microtip probe sonication under conditions optimized for IP efficiency. ChIP-Seq libraries were produced and sequenced according to Illumina protocols. Libraries were multiplexed for sequencing.
attributes.tag: GEO Accession
attributes.value: GSM1684639