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Sample GSM2774980 Query DataSets for GSM2774980
Status Public on Apr 24, 2018
Title ATAC_N+RIS_Rep3
Sample type SRA
 
Source name IMR90
Organism Homo sapiens
Characteristics vector 1: ER:HRAS(G12V)
vector 2: pWZL N1ICD
4oht: Yes
passage: 23-28
Treatment protocol For RIS samples, cells are treated for 6 days with 4OHT. For co-cultures, IMR90 ER:HRAS(G12V) cells expressing mRFP are cultured for 6 days in the presence of 4OHT before flow sorting of red cells.
Extracted molecule genomic DNA
Extraction protocol ATAC-seq performed using 100,00 cells and 13 cycles of PCR amplification. Otherwise, as previously described (Buenrostro et al., 2015).
Libraries prepared using 13 cycles of PCR following nuclei transposition using the Nextera DNA library preperation kit (Illumina, FC-121-1030). Samples were size selected between 170 and 400bp (in order to isolate ‘nucleosome free’ and ‘mono-nucleosome’ fragments) using SPRIselect beads (B23319, Beckman Coulter)
 
Library strategy ATAC-seq
Library source genomic
Library selection other
Instrument model Illumina NextSeq 500
 
Data processing Mapped to the human reference (hg19) with BWA (version 0.7.12)
Low quality reads (mapping quality less than 20) as well as known adapter contamination were filtered out using Cutadapt (version 1.10.0)
Average fragment size was determined using the ChIPQC Bioconductor package, and peak calling was performed with MACS2 (version 2.1.0), using fragment size as an extension size (--extsize parameter)
Coverage files were generated using MACS2 (version 2.1.0).
Genome_build: hg19
Supplementary_files_format_and_content: .bedgraph = coverage files
Supplementary_files_format_and_content: .narrowPeak = peak files
 
Submission date Sep 07, 2017
Last update date May 15, 2019
Contact name Shamith Samarajiwa
Organization name Imperial College London
Department Genetics and Genomics Section Department of Metabolism, Digestion and Reproduction
Lab Computational Biology & Data Science
Street address ICTEM Building, Hammersmith Campus, Du Cane Road,
City London
ZIP/Postal code W12 0NN
Country United Kingdom
 
Platform ID GPL18573
Series (2)
GSE103588 NOTCH-mediated non-cell autonomous regulation of chromatin structure during senescence [ATAC-Seq]
GSE103590 NOTCH-mediated non-cell autonomous regulation of chromatin structure during senescence
Relations
BioSample SAMN07614492
SRA SRX3167007

Supplementary file Size Download File type/resource
GSM2774980_706_503_ERRAS_pWZL_N1_CD_R3_senes_L001_R1_001_trim_merged.bl_peaks.narrowPeak.gz 4.6 Mb (ftp)(http) NARROWPEAK
GSM2774980_706_503_ERRAS_pWZL_N1_CD_R3_senes_L001_R1_001_trim_merged.bl_treat_pileup.bedgraph.gz 267.0 Mb (ftp)(http) BEDGRAPH
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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