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Sample GSM7813753 Query DataSets for GSM7813753
Status Public on Jun 24, 2024
Title Optimization;Plasmid_LbCas12a
Sample type SRA
 
Source name plasmid
Organism unidentified plasmid
Characteristics tissue: plasmid
Extracted molecule other
Extraction protocol Genomic DNA was extracted from the cell pellets collected at the start (T0) and end time points using the Wizard Genomic DNA Purification Kit (Promega #A1120).
First, the lentiviral integrated hgRNA expression cassettes were amplified from genomic (g)DNA equivalent of ~ 100-fold library coverage using NEBNext Ultra II Q5 Master Mix (New England Biolabs #M0544X). Individual 50 µL PCR reactions containing 3.5 μg gDNA were performed using PCR1_Hybrid_Outer_F2 and PCR1_Hybrid_Outer_R1 primers for the optimization and exon deletion screens and primers A265 and PCR1_BE_Rev for the base editor screens, respectively (see Table S3). After pooling the individual PCR-1 reactions, a fraction was purified using a PCR purification column and used as template for PCR-2, in which each sample was barcoded with unique i5 and i7 index primer combinations. The resulting PCR-2 products were resolved on a 2% agarose gel using SYBR Safe DNA stain (ThermoFisher Scientific #S33102). The desired band was excised and subjected to gel extraction (ThermoFisher Scientific #K0691). Quantification of the extracted libraries was conducted using the Qubit dsDNA HS assay (ThermoFisher Scientific #Q32851) and Tape Station (Agilent #5067-5582 and #5067-5583). The quantified and validated sequencing libraries were pooled, and paired-end sequencing was performed on either an Illumina NextSeq 500 or a NovaSeq 6000 platform.
 
Library strategy OTHER
Library source other
Library selection other
Instrument model NextSeq 2000
 
Description optimization_readCounts.txt
Data processing demultiplexing
mapping to library with bowtie 1 and extract read count for each gRNA in the library
Assembly: hg18
Supplementary files format and content: read counts of the mapped sequencing data in the format of txt.
Library strategy: CRISPR
 
Submission date Sep 29, 2023
Last update date Jun 24, 2024
Contact name Thomas Gonatopoulos-Pournatzis
E-mail(s) thomas.gonatopoulos@nih.gov
Organization name NCI/NIH
Street address 1050 Boyles Street
City Frederick
ZIP/Postal code 21702
Country USA
 
Platform ID GPL33800
Series (2)
GSE244337 Genome-Scale Exon Perturbation Screens Uncover Critical Exons for Cell Fitness [CRISPR]
GSE244374 Genome-Scale Exon Perturbation Screens Uncover Critical Exons for Cell Fitness
Relations
BioSample SAMN37607743
SRA SRX21932070

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA

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