Sample information curated by ChIP-Atlas

Antigen

Antigen Class
Histone
Antigen
H3K4me3

Cell type

Cell type Class
Pluripotent stem cell
Cell type
ES cells
NA
NA

Attributes by original data submitter

Sample

source_name
F-H9S3 hESCs
cell type
hESCs in primed state
antibody
H3K4me3 (Diagenode, pAb-003-050 )

Sequenced DNA Library

library_strategy
ChIP-Seq
library_source
GENOMIC
library_selection
ChIP
library_construction_protocol
Cells were cross-linked with 1% formaldehyde for 10 min at room temperature, and formaldehyde was inactivated by the addition of 125 mM glycine. Chromatin from each cell line was sonicated to a length of around 250-500bp and immunoprecipitated using custom made antibodies provided bu Huck-Hui Ng. Samples were sequenced using the SOLEXA platform. Libraries were prepared according to Illumina's instructions accompanying the DNA Sample Kit (Part# 0801-0303). Briefly, DNA was end-repaired using a combination of T4 DNA polymerase, E. coli DNA Pol I large fragment (Klenow polymerase) and T4 polynucleotide kinase. The blunt, phosphorylated ends were treated with Klenow fragment (3' to 5' exo minus) and dATP. After adapter ligation DNA was PCR amplified with Illumina primers for 15 cycles and library fragments of ~250 bp (insert plus adaptor and PCR primer sequences) were band isolated from an agarose gel. The purified DNA was captured on an Illumina flow cell for cluster generation. Libraries were sequenced on the Genome Analyzer following the manufacturer's protocols.

Sequencing Platform

instrument_model
Illumina Genome Analyzer IIx

hg38

Number of total reads
43910452
Reads aligned (%)
80.3
Duplicates removed (%)
20.4
Number of peaks
29687 (qval < 1E-05)

hg19

Number of total reads
43910452
Reads aligned (%)
80.0
Duplicates removed (%)
20.9
Number of peaks
29740 (qval < 1E-05)

Base call quality data from DBCLS SRA