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Sample GSM4078751 Query DataSets for GSM4078751
Status Public on Jul 02, 2020
Title HEK293T cells, ABEmax_HEKsite2_Rep3
Sample type SRA
 
Source name HEK293T
Organism Homo sapiens
Characteristics cell line: HEK293T
treatment: ABEmax
guide rna (grna): HEKsite2
gfp: All GFP
replicate: 3
Treatment protocol Transfections were performed using 50ug of transfection quality plasmid DNA (Qiagen Maxiprep), using 37.5ug of base editor plasmid co-translationally encoding P2A-EGFP or variants thereof and 12.5ug of gRNA plasmids. 6-7x10E6 HEK293T cells were seeded into TC-treated 150mm plates 18-24h prior to transfection to yield ~60-80 % confluency on the day of transfection. Cells were transfected using 150uL TransIT-293 (HEK293T, Mirus) reagents per plate, according to the manufacturers’ protocols (mixing DNA and reagent in 5mL Optimem, 30min incubation). GFP positive cells were sorted 36-40h after transfection after doublet-exlusion and gating for the cell population on a BD FACSARIA II.
Growth protocol HEK293T cells (CRL-3216, obtained from ATCC) were grown in culture using media consisting of DMEM (Gibco) supplemented with 10% FBS (Gibco) and 1% penicillin-streptomycin (Gibco). Cells were used for experiments until passage 20. Cells were passaged at ~80% confluency every 2-4 days to maintain an actively growing population and avoid anoxic conditions. Cells were tested for mycoplasma bi-weekly.
Extracted molecule total RNA
Extraction protocol RNA was extracted with Macherey-Nagel’s NucleoSpin RNA Plus kit.
Illumina TruSeq Stranded Total RNA Gold, IDT-ILM unique dual indices for barcoding.
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model NextSeq 550
 
Data processing RNA sequencing data was aligned to the human reference genome (GRCh38/hg38) using STAR using a basic two-pass alignment strategy. Aligned reads were filtered for those reads that were uniquely mapping using the --outFilterMultimapNmax 1 flag.
Variants associated with BE treatment were called using the GATK best practices pipeline using GATK 3.8.1 and Picard 2.7.
No samples were excluded from bioinformatics analyses.
Genome_build: hg38
Supplementary_files_format_and_content: Raw gene expression counts per gene estimated by STAR
 
Submission date Sep 13, 2019
Last update date Jul 02, 2020
Contact name Caleb Lareau
E-mail(s) [email protected]
Organization name Memorial Sloan Kettering
Street address 417 E 68th St, Zuckerman - ZRC 1132
City New York
State/province New York
ZIP/Postal code 10065
Country USA
 
Platform ID GPL21697
Series (1)
GSE137411 Bimodal Adenine and Cytosine CRISPR Base Editing on DNA
Relations
BioSample SAMN12744873
SRA SRX6845779

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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