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Sample GSM6939020 Query DataSets for GSM6939020
Status Public on Jul 15, 2024
Title RNAseq-DOX-EtOH-N3
Sample type SRA
 
Source name SH-EP NMYC-ER
Organism Homo sapiens
Characteristics cell line: SH-EP NMYC-ER
cell type: Neuroblastoma
dox-treatment (shrna-tf3c5): induced (shRNA expression)
4-oht treatment_(nmyc_expresion): uninduced (no NMYC expression)
treatment with_inhibitor: not applicable
biological replicate: N3
Treatment protocol The indcution of NMYC in the SH-EP-NMYC-ER cells was achieved by adding 4-OHT (200 nM) for 4 hours. The expression of an shRNA targeting TF3C5 in the SHEP-NMYCER cells was induced with 1 µg/ml doxycycline for 48 hours.
Growth protocol Human neuroblastoma derived SH-EP cells expressing an exogenous and 4-OHT inducible NMYC allele (SH-EP-NMYC-ER), were grown in RPMI-1640 medium supplemented with with 10% horse serum and 1% penicillin/ streptomycin. Cells were cultured at 37C at 5% CO2.
Extracted molecule total RNA
Extraction protocol For RNA sequencing, cells were harvested and total RNA was extracted with RNeasy MiniKit (Qiagen) according to manufacturer's instructions. On-column Dnase I digestion was performed followed by mRNA isolation with the NEBNext Poly(A) mRNA Magnetic Isolation Kit (NEB).
Library preparation was done with the NEBNext Ultra II Directional RNA Library Prep for Illumina (NEB) following the manufacturer's manual. Libraries were size-selected using SPRIselect beads (Backman-Coulter) after amplification with 9 PCR cycles using the NEBNext Multiplex Oligos for Illumina Kit (NEB). Library quality and fragment size distribution was analyzed on a Fragment Analyzer (Advanced Analytical). Sequencing was performed in paired-end mode on a NextSeq2000 platform (Illumina).
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model NextSeq 2000
 
Description RNA-seq
Data processing Basecalls were performed using bcl2fastq v1.1.0 (Illumina) and the quality of the generated FASTQ files was analysed with FastQC.
For mRNA sequencing, reads were aligned to the human genome (hg19/GRCh37) using STAR aligner v2.7.9a with default parameters and gene quantification (--quantMode GeneCounts). The output table with teh gene counts was futher analyzed in R v4.1.1 and processed with DESeq2 package according to the manual. Genes with at least 15 counts in at least 3 samples were kept in the counttable. All samples were then normalized by size factors.
Following read-normalization, the fold average for 3 independent biological replicates (N1, N2, N3) was calculated on treatment to control. Where applicable, the calculated fold-changes were averaged in 100 genes per bin for a total of 140 bins of 14085 genes.
Assembly: hg19
Supplementary files format and content: Tab-delimited text file that includes the raw-counts for all 12 individual samples in a singel table. This count-table was used to carry out all further data-processing steps as outlined above.
 
Submission date Jan 17, 2023
Last update date Jul 15, 2024
Contact name Martin Eilers
Organization name University of Wuerzburg
Department Chair for Biochemistry and Molecular Biology
Lab Martin Eilers
Street address Am Hubland
City Wuerzburg
ZIP/Postal code 97074
Country Germany
 
Platform ID GPL30173
Series (2)
GSE223057 TFIIIC and MYCN link the three-dimensional chromatin structure of promoters to transcription termination of stalled RNA polymerase (RNA-Seq)
GSE223058 TFIIIC and MYCN link the three-dimensional chromatin structure of promoters to transcription termination of stalled RNA polymerase
Relations
BioSample SAMN32769626
SRA SRX19051687

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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