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Sample GSM7673598 Query DataSets for GSM7673598
Status Public on Nov 15, 2023
Title spike for sgIkzf1_Tpex_5
Sample type SRA
 
Source name sgRNA-transduced OT-I cells from the dual-color transfer system at day 7 post adoptive transfer to B16-OVA tumor
Organism Mus musculus
Characteristics cell type: sgRNA-transduced OT-I cells from the dual-color transfer system at day 7 post adoptive transfer to B16-OVA tumor
strain: C57BL/6
Growth protocol OT-I cells transduced with indicatd sgRNAs were sorted from B16-OVA tumor
Extracted molecule genomic DNA
Extraction protocol Cells were lysed in 50μl ATAC-seq lysis buffer (10mM Tris-HCl, pH7.4, 10mM NaCl, 3mM MgCl2, 0.1% IGEPAL CA-630 detergent) on ice for 10min. Resulting nuclei were pelleted at 500gfor 10min at 4 °C. Supernatant was carefully removed with a pipette and discarded. The pellet was resuspended in 50μl transposase reaction mix (25μl 2×TD buffer, 22.5μl nuclease-free water, 2.5μl transposase) and incubated for 30min at 37 °C. After the reaction, the DNA was cleaned up using the Qiagen MinElute kit
The barcoding reaction was run using the NEBNext HiFi kit on the basis of the manufacturer’s instructions and amplified for five cycles
 
Library strategy ATAC-seq
Library source genomic
Library selection other
Instrument model Illumina HiSeq 4000
 
Data processing Adapter sequences were removed using cutadapt v.1.9
and aligned them to the mouse genome mm10 (GRCm38_68 from Sanger;ftp://ftp-mouse.sanger.ac.uk/ref/GRCm38_68.fa) using the Burrows–Wheeler algorithm32(version 0.5.9-r26-dev, default parameter)
duplicated reads were then marked with Picard (version 1.65 (1160)) and only non-duplicated reads were kept, using samtools (parameter ‘-q 1 -F 1024’ version 0.1.18 (r982:295))
After adjustment using the Tn5 shift (by which reads were offset by +4bp for the sense strand and −5bp for the antisense strand), we separated reads into nucleosome-free, mononucleosome, dinucleosome and trinucleosome by fragment size
performed peak-calling for nucleosome-free reads using MACS2(version 2.1.0.20150603, default parameters with ‘–extsize 200 –nomodel’, merged by bedtoolsif within 100bp) for individual samples
Assembly: mm10
Supplementary files format and content: Consensus peaks and fragment counts for all samples
 
Submission date Aug 01, 2023
Last update date Nov 15, 2023
Contact name Hongbo Chi
E-mail(s) hongbo.chi@stjude.org
Organization name St Jude Children's Research Hospital
Department Immunology
Street address 262 Danny Thomas Place
City Memphis
State/province TN
ZIP/Postal code 38105
Country USA
 
Platform ID GPL21103
Series (2)
GSE216800 Single-cell CRISPR screens in vivo map T cell fate regulomes in cancer
GSE239802 Single-cell CRISPR screens in vivo map T cell fate regulomes in cancer [Ikzf1 ATAC-Seq]
Relations
BioSample SAMN36794179
SRA SRX21218117

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA
Processed data are available on Series record

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