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Sample GSM7777757 Query DataSets for GSM7777757
Status Public on Oct 21, 2024
Title wild type_BiolRep2
Sample type SRA
 
Source name cell culture
Organism Schizosaccharomyces pombe
Characteristics cell type: cell culture
genotype: 972h- wild type
treatment: pull down with Dynabeads (Invitrogen, magnetic Streptavidin) and eluted with biotin elution buffer (12.5 mM biotin – Invitrogen, 7.5 mM HEPES pH 7.5, 75 mM NaCl, 1.5 mM EDTA, 0.15% SDS, 0.075% sarkosyl, 0.02% Na-Doc)
Extracted molecule total RNA
Extraction protocol RNA was extracted with QIAzol and RNeasy Mini kit (Qiagen) according to the manufacturer’s recommendations, including a DNase treatment.
RNA quality was assessed in an Agilent 2100 Bioanalyzer and strand-specific cDNA libraries were made NEXTflex Rapid Directional qRNA-Seq Kit (PerkinElmer, formerly BiooScientific). Libraries were quantified in a Qubit, pooled and 4 nM of the pooled library was sequenced
 
Library strategy OTHER
Library source transcriptomic
Library selection other
Instrument model Illumina MiSeq
 
Data processing Libraries were spiked with 20% PhiX (Illumina) to increase the complexity of the libraries to accommodate clustering and sequenced in an Illumina MiSeq (75 bp, paired-end) instrument.
All quality control steps including quality filtering, demultiplexing and adapter removal were performed with Illumina BaseSpace in-house tools. The quality of the sequences was confirmed with FastQC (ver 0.11.2, https://www.bioinformatics.babraham.ac.uk/projects/fastqc/).
Reads were mapped with Hisat2 (version 2.2.1, code used: hisat2 -x genomeIndex --rna-strandness FR --trim5 8 -1 pair1.fastq.gz -2 pair2.fastq.gz -S out.sam --summary-file summary.txt)
sam files were converted to bam files and sorted/indexed with samtools (ver 1.14) and sorted bam files were used to count reads per gene with htseq (ver. 0.12.3, https://htseq.readthedocs.io/en/master/index.html; code use: htseq-count -s reverse -f bam -t gene -i ID file.bam annotation.gff3 > file.count).
The top aal1-bound RNAs were determined with edgeR (version 3.32.1; Since there were no significantly enriched RNAs (FDR ≤0.05) in the wild-type relative to aal1∆ cells, we chose the top 30 enriched RNAs which were verified in IGV (ver 2.8.0, https://software.broadinstitute.org/software/igv/). For IGV inspection, strand-specific MiSeq reads were processed further with deepTools (ver 3.5.1, https://deeptools.readthedocs.io/en/develop/) to get normalised gene coverage in counts per million (cpm) per 50 bp bins (bam to bigWig files) for direct comparison.
Assembly: genome build as of January 2020 downloaded from pombase.org
Supplementary files format and content: raw gene counts files combined as a table with counts for each biological replicate as a separate column. In .xlsx format (excel sheet)
Supplementary files format and content: bigwig (.bw) files with normalised gene coverage in counts per million (cpm) per 50 bp bins (bam to bigWig)
Library strategy: ChIRP-RNAseq
 
Submission date Sep 13, 2023
Last update date Oct 21, 2024
Contact name Shajahan Anver
E-mail(s) s.anver@ucl.ac.uk
Organization name University College London
Department Genetics, Evolution and Environment
Street address Gower Street London
City London
ZIP/Postal code WC1E 6BT
Country United Kingdom
 
Platform ID GPL16192
Series (2)
GSE243035 Ageing-associated long non-coding RNA extends lifespan and reduces translation in non-dividing cells [aal1_ChIRP-RNAseq]
GSE243036 Ageing-associated long non-coding RNA extends lifespan and reduces translation in non-dividing cells
Relations
BioSample SAMN37377068
SRA SRX21765509

Supplementary file Size Download File type/resource
GSM7777757_ChIRP-RNAseq_wt2_coverage.bw 178.0 Kb (ftp)(http) BW
SRA Run SelectorHelp
Raw data are available in SRA

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