Sample information curated by ChIP-Atlas

Antigen

Antigen Class
Histone
Antigen
H3K4me3

Cell type

Cell type Class
Digestive tract
Cell type
HCT 116
Primary Tissue
Colon
Tissue Diagnosis
Carcinoma

Attributes by original data submitter

Sample

source_name
HCT116
cell line
HCT116
genotype/variation
HCT116
shRNA
NA
chip antibody
H3K4me3

Sequenced DNA Library

library_strategy
ChIP-Seq
library_source
GENOMIC
library_selection
ChIP
library_construction_protocol
RNA was extracted using Trizol reagent (Life technologies). RNAse free DNaseI (Sigma) was used to eliminate DNA contamination and the treated RNA was purified with RNeasy mini kit (Qiagen). Cells were fixed with 1% formaldehyde for 10 minutes. After quenching and cell lysis, chromatin were sonicated using a E220 focused-ultrasonicator (Covaris). 100 µg sheared chromatin, 5 µg antibody, and 50 µl protein A/G beads (Santa Cruz) were used for each immunoprecipitation. Immunoprecipitated DNA were purified after washing, eluting, and reverse-croslinking and submitted for library preparation. ChIP-seq libraries were prepared using the KAPA HTP Library Preparation Kit complemented with NEXTflex DNA Barcodes from Bioo Scientific. 10 ng of DNA was used as starting material for input and ip samples. Libraries were amplified using 13 cycles on the thermocycler. Post amplification libraries were size selected at 250- 450bp in length using Agencourt AMPure XP beads from Beckman Coulter. Libraries were validated using the Agilent High Sensitivity DNA Kit. RNA-seq libraries were prepared using the Illumina TruSeq Stranded Total RNA Preparation Kit with Ribo-Depletion. Input RNA quality was validated using the Agilent RNA 6000 Nano Kit. 200ng-1 µg of total RNA was used as starting material. Libraries were validated using the Agilent DNA 1000 Kit

Sequencing Platform

instrument_model
NextSeq 500

hg38

Number of total reads
52166470
Reads aligned (%)
98.1
Duplicates removed (%)
15.0
Number of peaks
20756 (qval < 1E-05)

hg19

Number of total reads
52166470
Reads aligned (%)
97.8
Duplicates removed (%)
15.4
Number of peaks
20861 (qval < 1E-05)

Base call quality data from DBCLS SRA