Sample information curated by ChIP-Atlas

Antigen

Antigen Class
Histone
Antigen
H3K4me3

Cell type

Cell type Class
Gonad
Cell type
Testis
MeSH Description
The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS.

Attributes by original data submitter

Sample

source_name
testis wt
strain background
129/SvPas
genotype/variation
wild type
tissue
testis
chip antibody
H3K4Me3 (04-745, Millipore)

Sequenced DNA Library

library_strategy
ChIP-Seq
library_source
GENOMIC
library_selection
ChIP
library_construction_protocol
ChIPed DNA was purified by phenol/chloroform extraction ChIP-seq libraries were prepared using NEXTflex ChIP-Seq Kit (#5143-02, Bioo Scientific) following the manufacturer's protocol (V12.10) with some modifications. Briefly, 10 ng of ChIP enriched DNA were end repaired using T4 DNA polymerase, Klenow DNA polymerase and T4 PNK, then size selected and cleaned-up using Agencourt AMPure XP beads (#A63881,Beckman). A single ‘A’ nucleotide was added to the 3’ ends of the blunt DNA fragments with a Klenow fragment (3' to 5'exo minus). The ends of the DNA fragments were ligated to double stranded barcoded DNA adapters (NEXTflex ChIP-Seq Barcodes - 6, #514120, Bioo Scientific) using T4 DNA Ligase. The ligated products were enriched by PCR (2 min at 98°C; [30 sec at 98°C, 30 sec at 65°C, 60 sec at 72°C] x 14 cycles; 4 min at 72°C) and cleaned-up using Agencourt AMPure XP beads. Prior to analyses DNA libraries were checked for quality and quantified using a 2100 Bioanalyzer (Agilent). The libraries were loaded in the flowcell at 7pM concentration and clusters were generated using the Cbot and sequenced on the Illumina Hiseq2500 as single-end 50 base reads following Illumina’s instructions.

Sequencing Platform

instrument_model
Illumina HiSeq 2500

mm10

Number of total reads
8180976
Reads aligned (%)
94.8
Duplicates removed (%)
12.3
Number of peaks
17409 (qval < 1E-05)

mm9

Number of total reads
8180976
Reads aligned (%)
94.6
Duplicates removed (%)
12.5
Number of peaks
17468 (qval < 1E-05)

Base call quality data from DBCLS SRA