NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM1267950 Query DataSets for GSM1267950
Status Public on Apr 15, 2014
Title wt_MEFs_FLAG_ChIP_(20120817_6_4)
Sample type SRA
 
Source name wildtype-Chd1 MEFs FLAG ChIP_seq
Organism Mus musculus
Characteristics cell type: embryonic fibroblasts
transgene: wildtype-Chd1
antibody: FLAG (Sigma anti-FLAG M2 agarose beads catalog #A2220)
Extracted molecule genomic DNA
Extraction protocol Mouse embryonic fibroblasts (MEFs) expressing wildtype transgenic Chd1 were crosslinked using formaldehyde for 10 minutes at room temperature. Chromatin was fragmented using MNase and then sonicated to ensure complete extraction of chromatin and associated proteins. Chromatin was immunoprecipitated using an antibody (FLAG) against the N-terminus of the transgenic Chd1. DNA was extracted from the solubilized chromatin and subjected to Illumina (Solexa) sequencing.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina HiSeq 2000
 
Description FLAG-tagged Chd1 chromatin immunoprecipitation followed by sequencing from mouse embryonic fibroblasts (MEFs) expressing wildtype Chd1.
Data processing 1. We used Bowtie-0.12.7 to map paired-end 25bp reads to release MM9 of the Mus musculus genomic sequence obtained from U.C.Santa Cruz. If a read was mapped to multiple locations, one location was picked at random. 2. We extracted properly paired reads (Supplementary file .bed). 3. For each base pair in the genome, we counted the number of paired-end fragments aligned over it. 4. We normalized base pair counts by dividing by the total number of counts for all base pairs and then multiplying by the total number of base pairs in the genome (Supplementary file .wig) 4. We broke down aligned paired-end fragments into sub-groups by insert size length and repeated steps 3. and 4. for the paired-end fragments in each sub-group.
 
Submission date Nov 19, 2013
Last update date May 15, 2019
Contact name Jorja Henikoff
E-mail(s) jorja@fhcrc.org
Phone 206-667-4850
Organization name Fred Hutchinson Cancer Research Center
Department Basic Sciences
Lab Henikoff
Street address 1100 Fairview AV N, A1-162
City Seattle
State/province WA
ZIP/Postal code 98109-1024
Country USA
 
Platform ID GPL13112
Series (2)
GSE52349 The nucleosomal barrier to promoter escape by RNA Polymerase II is overcome by the chromatin remodeler Chd1
GSE52501 The nucleosomal barrier to promoter escape by RNA Polymerase II is overcome by the chromatin remodeler Chd1 [HiSeq]
Relations
BioSample SAMN02412545
SRA SRX378985

Supplementary file Size Download File type/resource
GSM1267950_wt_MEFs_FLAG_ChIP.bed.gz 541.6 Mb (ftp)(http) BED
GSM1267950_wt_MEFs_FLAG_ChIP.bedgraph.gz 467.4 Mb (ftp)(http) BEDGRAPH
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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