Sample information curated by ChIP-Atlas

Antigen

Antigen Class
TFs and others
Antigen
OEF-1

Cell type

Cell type Class
Adult
Cell type
Young adult
NA
NA

Attributes by original data submitter

Sample

source_name
staged young adult (YA) from OP383 (OEF-1:GFP transgenic strain)
developmental stage
YA
tissue
whole animal
chipped factor
OEF-1
antibody
GFP
strain
OP383

Sequenced DNA Library

library_strategy
ChIP-Seq
library_source
GENOMIC
library_selection
ChIP
library_construction_protocol
For all ChIP-seq samples, worms were crosslinked in 2% formaldehyde in M9 buffer for 30 minutes rotating at room temperature. Crosslinking was quenched with 1M Tris pH 7.5, followed by two washes with M9, and one wash with FA buffer containing protease inhibitors. Final Triton X-100 concentration in all FA buffers used was 1%. Worm pellets were flash-frozen in liquid nitrogen and stored at -80˚C. Using the Fisher Scientific Sonic Dismembrator 550 (Pittsburgh, PA), samples were sonicated with a microtip on ice for sixteen cycles of 10 sec on, and 60 sec off on the “microtip” setting to fragment the majority of DNA within 200-800bp range. Sonicated extract containing 2mg of protein was immunoprecipitated as previously described (Zhong et al., 2010) with 7.5µg of anti-GFP antibody (gift from Tony Hyman). ChIP-seq library preparation for enriched DNA and the genomic DNA input control for at least two biological replicates was performed as described in (Zhong et al. 2010), except Qiagen MinElute PCR purification and gel extraction kits were used after the Klenow step. Libraries were multiplexed as described in Lefrancois et al. (2009) in order to sequence four samples in a single flow cell using the Illumina Genome Analyzer II platform.

Sequencing Platform

instrument_model
Illumina Genome Analyzer II

ce11

Number of total reads
3411246
Reads aligned (%)
44.3
Duplicates removed (%)
22.1
Number of peaks
598 (qval < 1E-05)

ce10

Number of total reads
3411246
Reads aligned (%)
44.3
Duplicates removed (%)
22.1
Number of peaks
597 (qval < 1E-05)

Base call quality data from DBCLS SRA