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
whole adult testis
strain
(C57BL/6J x CAST/Eij)F1
prdm9 genotype
Humanized/CAST
chip antibody
H3K4me3 (Abcam ab8580)
tissue
whole adult testis

Sequenced DNA Library

library_strategy
ChIP-Seq
library_source
GENOMIC
library_selection
ChIP
library_construction_protocol
ChIP-seq was performed as previously described (Davies et al. Nature 2016) with several important modifications that increased ChIP stringency (noted here). Lysis was performed in 1% SDS lysis buffer (1% SDS, 10 mM EDTA, 50 mM Tris pH 8.0, 2x protease inhibitors). Sonication was performed in a Bioruptor Twin sonication bath at 4°C for three 5-minute periods of 30s on, 30s off at high power. Sonicated lysates were diluted 1:10 in IP wash buffer (100 mM Tris pH 7.5, 500 mM LiCl, 1% NP-40, 1% Na deoxycholate, 2x Protease Inhibitor, filtered) instead of dilution buffer for antibody incubation. This yielded roughly 1 ng of ChIP DNA per testis. Libraries were prepared using Illumina's TruSeq ChIP library preparation kit.

Sequencing Platform

instrument_model
Illumina HiSeq 2500

mm10

Number of total reads
72740395
Reads aligned (%)
97.5
Duplicates removed (%)
8.8
Number of peaks
53705 (qval < 1E-05)

mm9

Number of total reads
72740395
Reads aligned (%)
97.4
Duplicates removed (%)
9.1
Number of peaks
53692 (qval < 1E-05)

Base call quality data from DBCLS SRA