NCBI Logo
GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
          Go
Sample GSM1194153 Query DataSets for GSM1194153
Status Public on Jun 09, 2014
Title 18.KD.t25
Sample type SRA
 
Source name HEK293T-rex cells, 18.KD.t25
Organism Homo sapiens
Characteristics cell line: HEK293T-rex
cell line clone: 18
recql5 status: knock-down
treatment: Doxycycline 25 min
Treatment protocol Cells were treated with 100mM of DRB to stop transcription, after a double wash with PBS, cells were released in fresh medium and 10', 25' and 40' after release cells were processed for Run-On experiments.
Growth protocol Constitutively KD cells were grown in presence of Doxycycline to induce physiological level of an shRNA resistant full length version of RECQL5, or in the absence of Doxycycline to shut off the expression of the protein for 4 days.
Extracted molecule total RNA
Extraction protocol Transcription competent nuclei were prepared using the Nuclei Isolation Kit (Sigma) according to manufacturers' recommendations and Run-On was performed as previously described (Core et al., 2008)
Strand specific RNA libraries were prepared for sequencing using standard Illumina protocols
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina Genome Analyzer IIx
 
Data processing Basecalls performed using CASAVA version 1.8.2
GRO-seq reads were aligned to the hg19 genome assembly using BWA v0.5.9 with the following configurations: -l 36, -n 3
BAM files representing the same sample were merged and reads mapping to Ensembl rRNAs or to regions blacklisted for mappability by the Encode project were removed.
Further analysis was conducted using Bioconductor. Reads were extended to 250bp and each sample was normalised to a read depth of 20 million. A subset of the protein coding human Ensembl transcriptome was created by filtering for transcripts >=30kb. The largest transcript was selected per gene, resulting in a list of 8529. Bp level coverage of the region 2kb upstream to 120kb downstream of each transcript's TSS was calculated for each sample.
Genome_build: hg19
Supplementary_files_format_and_content: Tab-delimited text files containing mean normalized read depth across selected protein coding Ensembl transcripts. Covers the region -2kb upstream to +120kb downstream of the TSS.
 
Submission date Jul 23, 2013
Last update date May 15, 2019
Contact name Richard James Mitter
Organization name The Francis Crick Institute
Department Bioinformatics & Biostatistics
Street address 1 Midland Road
City London
State/province LONDON
ZIP/Postal code NW1 1AT
Country United Kingdom
 
Platform ID GPL10999
Series (2)
GSE49133 Mapping of nascent RNA upon release of DRB in WT and KD of RECQL5
GSE49134 RECQL5 Controls Transcript Elongation and Suppresses Transcription-Associated Genome Instability
Relations
BioSample SAMN02262045
SRA SRX327273

Supplementary file Size Download File type/resource
GSM1194153_18.KD.t25.txt.gz 869.0 Kb (ftp)(http) TXT
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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