Sample information curated by ChIP-Atlas

Antigen

Antigen Class
Histone
Antigen
H3K4me3

Cell type

Cell type Class
Lung
Cell type
PC-9
Primary Tissue
Lung
Tissue Diagnosis
Adenocarcinoma

Attributes by original data submitter

Sample

source_name
NSCLC
cell line
PC9
chip antibody
H3K4me3 (CST 9751 Lot 7)
treatment
DMSO
timepoint
5days

Sequenced DNA Library

library_strategy
ChIP-Seq
library_source
GENOMIC
library_selection
ChIP
library_construction_protocol
Cells were fixed with 1% formaldehyde for 15 min and quenched with 0.125 M glycine. Chromatin was isolated by the addition of lysis buffer, followed by disruption with a Dounce homogenizer. Lysates were sonicated and the DNA sheared to an average length of 300-500 bp. Genomic DNA (Input) was prepared by treating aliquots of chromatin with RNase, proteinase K and heat for de-crosslinking, followed by ethanol precipitation. Pellets were resuspended and the resulting DNA was quantified on a NanoDrop spectrophotometer. For each ChIP reaction, 30 ug of chromatin was precleared with protein A agarose beads (Invitrogen). ChIP reactions were set up using precleared chromatin and antibodies and incubated overnight at 4 C. Protein A agarose beads were added and incubation at 4 C was continued for another 3 hr. Immune complexes were washed, eluted from the beads with SDS buffer, and subjected to RNase and proteinase K treatment. Crosslinks were reversed by incubation overnight at 65 C, and ChIP DNA was purified by phenol-chloroform extraction and ethanol precipitation. Illumina sequencing libraries were prepared from the ChIP and Input DNAs by the standard consecutive enzymatic steps of end-polishing, dA-addition, and adaptor ligation. After a final PCR amplification step, the resulting DNA libraries were quantified and sequenced on HiSeq 2500 (50 nt reads, single end).

Sequencing Platform

instrument_model
Illumina HiSeq 2500

hg38

Number of total reads
39450640
Reads aligned (%)
79.8
Duplicates removed (%)
13.6
Number of peaks
24515 (qval < 1E-05)

hg19

Number of total reads
39450640
Reads aligned (%)
79.5
Duplicates removed (%)
14.3
Number of peaks
24410 (qval < 1E-05)

Base call quality data from DBCLS SRA