NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM555139 Query DataSets for GSM555139
Status Public on Jun 15, 2010
Title ChIP-Seq for RNA Pol2 in MEF (B6)
Sample type SRA
 
Source name Mouse embryonic fibroblasts
Organism Mus musculus
Characteristics chip antibody: RNA Pol II (8WG16)
antibody catalog number: Covance MMS-126R
cell type: MEF
Growth protocol Mouse embryonic fibroblasts were grown in DMEM with 10% FBS.
Extracted molecule genomic DNA
Extraction protocol Whole cell extracts were sonicated to solubilize the chromatin. The chromatin extracts containing DNA fragments with an average size of 500 bp were immunoprecipitated using different antibodies. Purified immunoprecipitated DNA were prepared for sequencing according to a modified version of the Solexa Genomic DNA protocol. Fragmented DNA was end repaired and subjected to 18 cycles of LM-PCR using oligos provided by Illumina. Amplified fragments between 150 and 300bp (representing shear fragments between 50 and 200nt in length and ~100bp of primer sequence) were isolated by agarose gel electrophoresis and purified.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina Genome Analyzer II
 
Description Chromatin IP against Pol2
09112009_folder42TUFAAXX_B6
Data processing Images analysis and base calling was done using the solexa pipeline.
For all samples reads were aligned to their indicated build (mm8) using bowtie.
For all samples aligned sequences were extended 150bp upstream and 0bp downstream (with respect to read strand) and allocated into 25bp bins. Counts were normalized to reads per million, and bins with at least 1 read per million are shown.
The .ylf files are in [Y]oung [L]ab [F]ormat. It is a compact flat file representation of aligned read locations determined by bowtie. The file contains the locations of the bowtie aligned reads with the following format:

#BWT1 (read category BWT1)
>1 (chromomsome 1)
-12345 (minus strand read)
-9876 (minus strand read)
54321 (plus strand read)
>2 (chromomsome 2)
-67890 (minus strand read)
98765 (plus strand read)
132323 (plus strand read)
#BWT2 (read category BWT2)
(etc.)

The data from the BWT1 category is what is visualized in the uploaded WIG files
 
Submission date Jun 11, 2010
Last update date May 15, 2019
Contact name Richard A Young
E-mail(s) young_computation@wi.mit.edu
Phone 617-258-5219
Organization name Whitehead Institute for Biomedical Research
Lab Young Lab
Street address 9 Cambridge Center
City Cambridge
State/province MA
ZIP/Postal code 02142
Country USA
 
Platform ID GPL9250
Series (1)
GSE22302 ChIP-Seq of Pol2 in Mouse Embryonic Fibroblasts
Relations
SRA SRX022046
BioSample SAMN00015138

Supplementary file Size Download File type/resource
GSM555139_09112009_folder42TUFAAXX_B6.wig.gz 1.5 Mb (ftp)(http) WIG
GSM555139_09112009_folder42TUFAAXX_B6_ylf.txt.gz 35.0 Mb (ftp)(http) TXT
SRA Run SelectorHelp
Processed data provided as supplementary file
Raw data are available in SRA

| NLM | NIH | GEO Help | Disclaimer | Accessibility |
NCBI Home NCBI Search NCBI SiteMap