NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM4871343 Query DataSets for GSM4871343
Status Public on Feb 25, 2021
Title Pofut1_KO2
Sample type SRA
 
Source name sgRNA-transduced P14 cells from the dual-color transfer system at day 5 post-infection from spleen
Organism Mus musculus
Characteristics genotype/variation: Pofut1 KO
cell type: sgRNA-transduced P14 cells from the dual-color transfer system at day 5 post-infection from spleen
strain: C57BL/6
Growth protocol P14 cells transduced with indicated sgRNAs were sorted from spleen after LCMV-Armstrong infection.
Extracted molecule genomic DNA
Extraction protocol Cells were lysed in 50 μl ATAC-seq lysis buffer (10 mM Tris-HCl, pH 7.4, 10 mM NaCl, 3 mM MgCl2, 0.1% IGEPAL CA-630 detergent) on ice for 10 min. Resulting nuclei were pelleted at 500g for 10 min at 4 °C. Supernatant was carefully removed with a pipette and discarded. The pellet was resuspended in 50 μl transposase reaction mix (25 μl 2 × TD buffer, 22.5 μl nuclease-free water, 2.5 μl transposase) and incubated for 30 min 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
 
Description Pofut1_ATAC_summarizedCounts.tsv.gz
Data processing Adapter sequences were removed using cutadapt v.1.9
and aligned them to the mouse genome mm9 (NCBIM37_um from Sanger; ftp://ftp-mouse.sanger.ac.uk/ref/NCBIM37_um.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 +4 bp for the sense strand and −5 bp 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 bedtools if within 100 bp) for individual samples
Genome_build: mm9
Supplementary_files_format_and_content: Consensus peaks and fragment counts for all samples
 
Submission date Oct 28, 2020
Last update date Feb 25, 2021
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)
GSE160313 In vivo CRISPR screening reveals nutrient signaling processes underpinning CD8+ T cell fate decisions [Pofut1 ATAC-seq]
GSE160341 In vivo CRISPR screening reveals nutrient signaling processes underpinning CD8+ T cell fate decisions
Relations
BioSample SAMN16581695
SRA SRX9389522

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

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