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Sample GSM1382221 Query DataSets for GSM1382221
Status Public on Jun 04, 2014
Title mEpiSC_input
Sample type SRA
Source name Epiblast stem cells
Organism Mus musculus
Characteristics cell line: EpiSC9
chip antibody: N/A
Growth protocol mEpiSCs were cultured in Knockout DMEM supplemented with 20% KSR, 10ng/ml FGF2 (R&D Systems), 2mM Glutamax, 1x non-essential amino acids, and 0.1mM 2-mercaptoethanol and passaged every third day using 1.5 mg/ml collagenase type IV (Invitrogen) and trituration into small clumps of ~10-100 cells. Irradiated mouse embryonic fibroblasts (MEFs) served as a feeder layer for all pluripotent cell types and were maintained with DMEM supplemented with 10% fetal bovine serum, 2 mM glutamax, 1x non-essential amino acids, and 0.1 mM 2- mercaptoethanol. All cells were grown on Nunclon Δ-treated dishes or multiwell plates (Fisher Scientific) coated for 2 hours at 37°C with 0.1% (w/v) porcine gelatin (Sigma).
Extracted molecule genomic DNA
Extraction protocol ChIPs were performed from 5x10^6 crosslinked mEpiSCs as previously described (Schmidt et al., 2009). The following antibodies were used for ChIP: rabbit anti-H3K4me1 (Abcam #8895), rabbit anti- H3K4me3 (Active Motif #39159), rabbit anti-H3K27ac (Abcam #4729), mouse anti-H3K27me3 (Abcam #6002).
Sequencing libraries were prepared as previously described (Schmidt et al., 2009).
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina Genome Analyzer II
Data processing The FASTX-Toolkit ( was used to remove adapter sequences and trim read ends using a quality score cutoff of 20.
ChIP-seq data were aligned to mm9 genome assemblies (retrieved from, using Bowtie v0.12.9 (Langmead et al., 2009), allowing reads with ≤ 2 mismatches and discarding reads with > 1 reportable alignment ("-m 1" parameter).
Peaks were detected with MACS v1.4 (Zhang et al., 2008), using an aligned input DNA sample as control.
Genome_build: mm9
Supplementary_files_format_and_content: bigwig files - Wiggle tracks stepped at 25 bp were generated by MACS, normalized to the median signal by chromosome and converted to bigwig format using the UCSC Genome Browser’s wigToBigWig utility (retrieved from bed files - MACS called peaks.
Submission date May 07, 2014
Last update date May 15, 2019
Contact name Paul J. Tesar
Organization name Case Western Reserve University School of Medicine
Department Genetics and Genome Sciences
Street address 10900 Euclid Ave
City Clev
State/province OH
ZIP/Postal code 44106
Country USA
Platform ID GPL9250
Series (2)
GSE57407 Epigenomic comparison of distinct pluripotent stem cell states reveals a new class of enhancers with roles throughout mammalian development (ChIP-seq)
GSE57409 Epigenomic comparison of distinct pluripotent stem cell states reveals a new class of enhancers with roles throughout mammalian development
BioSample SAMN02767301
SRA SRX535242

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA
Processed data not applicable for this record

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