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Sample GSM515645 Query DataSets for GSM515645
Status Public on May 05, 2010
Title Tumor WT1_K4
Sample type SRA
 
Source name WT1-mutated Wilms tumor
Organism Homo sapiens
Characteristics disease state: primary Wilms tumor
tumor region: blastemal compartments of Wilms tumor
mutation: WT1
chip antibody: H3K4me3
Treatment protocol Frozen tissues corresponding to either sections of mature or fetal kidney, or to blastemal compartments of Wilms tumor were thawed and chopped into small fragments. Tissue fragments were crosslinked in 1% formaldehyde, quenched with glycine, washed and disaggregated into single cells using the 50mm medicones on the Medimachine (Beckon Dickinson) according to manufacturer’s protocol. Cells were then lysed and sonicated with a Branson 250 Sonifier to achieve a chromatin fragment size range from 200 to 700bp. Cell lysate was diluted 1:10 in ChIP dilution buffer and subjected to immunoprecipitation with respective antibodies against K4me3 (Abcam 8580), K27me3 (Upstate 07-449) or K36me3 (Abcam 9050). Whole cell lysate was retained for input control. All buffers were supplemented with protease inhibitor cocktail (Roche 14696200).
Growth protocol Surgical samples of primary Wilms tumors, normal kidney, and fetal kidney were obtained from Boston Children’s Hospital. All samples were collected with institutional review board approval.
Extracted molecule genomic DNA
Extraction protocol ChIP DNA samples were quantified using PicoGreen (Invitrogen), and three to ten nanograms were used to prepare sequencing libraries, as described (Mikkelsen et al., 2007). Libraries were loaded onto flow cells and sequenced on the Illumina Genome Analyzer using standard operating procedures.
 
Library strategy ChIP-Seq
Library source genomic
Library selection ChIP
Instrument model Illumina Genome Analyzer
 
Description Chromatin IP against H3K4me3
Data processing wig files (signal tracks): Sequence reads were obtained using the Illumina Genome Analyzer Pipeline and mapped to the human (March, 2006) genomes using MAQ. All reads mapping with two or fewer mismatches were retained. Reads with multiple best matches on the genome were discarded. Each read was extended in the direction of its strand out to 200bp, and with a fractional value of 0.25 between 200 and 300bps. Every 25pbs along the genome the number of overlapping tags was calculated. A value of -1 indicates locations for which signal cannot be obtained due to low complexity and the consequential multiple alignment hits for reads from that region.
 
Submission date Feb 25, 2010
Last update date Jun 11, 2013
Contact name Noam Shoresh
E-mail(s) [email protected]
Phone 617-714-7907
Organization name Broad Institute
Department Epigenomics
Street address 7 Cambridge Center
City Cambridge
State/province MA
ZIP/Postal code 02142
Country USA
 
Platform ID GPL9052
Series (1)
GSE20512 Chromatin Analysis of Wilms Tumor Highlights Stem Cell Properties and a Renal Developmental Network
Relations
BioSample SAMN02196199

Supplementary file Size Download File type/resource
GSM515645_Broad_WT1_K4_chr1.wig.gz 1.1 Mb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr10.wig.gz 650.3 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr11.wig.gz 647.3 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr12.wig.gz 656.6 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr13.wig.gz 440.9 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr14.wig.gz 432.6 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr15.wig.gz 410.3 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr16.wig.gz 409.2 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr17.wig.gz 433.8 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr18.wig.gz 354.3 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr19.wig.gz 341.2 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr2.wig.gz 1.1 Mb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr20.wig.gz 318.4 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr21.wig.gz 176.3 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr22.wig.gz 193.6 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr3.wig.gz 919.5 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr4.wig.gz 823.9 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr5.wig.gz 819.0 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr6.wig.gz 804.7 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr7.wig.gz 704.8 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr8.wig.gz 668.1 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chr9.wig.gz 544.2 Kb (ftp)(http) WIG
GSM515645_Broad_WT1_K4_chrX.wig.gz 594.0 Kb (ftp)(http) WIG
Processed data provided as supplementary file

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