Sample information curated by ChIP-Atlas

Antigen

Antigen Class
Histone
Antigen
H3K27me3

Cell type

Cell type Class
Spleen
Cell type
Spleen
MeSH Description
An encapsulated lymphatic organ through which venous blood filters.

Attributes by original data submitter

Sample

source_name
Spleen
tissue
Spleen
treatment
No
chip antibody
H3K27me3 (Cat. #9733,CST)

Sequenced DNA Library

library_strategy
ChIP-Seq
library_source
GENOMIC
library_selection
ChIP
library_construction_protocol
Lysates were clarified from Mnase/sonicated nuclei and histone-DNA complexes were isolated with antibody. Libraries were prepared according to ThruPLEX® DNA-seq Kit V2 (Rubicon Genomics, Ann Arbor, MI) according to the manufacturer's instructions. . Briefly,In the first step, the DNA is repaired and yields molecules with blunt ends. In the next step, stem-loop adaptors with blocked 5' ends are ligated with high efficiency to the 5' end of the genomic DNA, leaving a nick at the 3' end. The adaptors cannot ligate to each other and do not have single-strand tails, both of which contribute to non-specific background found with many other NGS preparations. In the final step, the 3' ends of the genomic DNA are extended to complete library synthesis and Illumina-compatible indexes are added through a high-fidelity amplification. After adapter ligation DNA was PCR amplified with Illumina primers for 12 cycles and library fragments of ~300 bp (insert plus adaptor and PCR primer sequences) were purified by AMpure reagents. The purified DNA was captured on an Illumina flow cell for cluster generation. Libraries were sequenced on the Illumina HiSeq 4000 following the manufacturer's protocols.

Sequencing Platform

instrument_model
Illumina HiSeq 2000

mm10

Number of total reads
30946503
Reads aligned (%)
98.7
Duplicates removed (%)
4.6
Number of peaks
139 (qval < 1E-05)

mm9

Number of total reads
30946503
Reads aligned (%)
98.6
Duplicates removed (%)
4.7
Number of peaks
113 (qval < 1E-05)

Base call quality data from DBCLS SRA