GEO Logo
   NCBI > GEO > Accession DisplayHelp Not logged in | LoginHelp
GEO help: Mouse over screen elements for information.
Sample GSM2976988 Query DataSets for GSM2976988
Status Public on Jun 07, 2018
Title dis2_11_rep2
Sample type SRA
Source name dis2-11: h+ leu1-32 ura4-D18 dis2-11
Organism Schizosaccharomyces pombe
Characteristics temperature °c: 30
drug: None
antibody: None
assay: PRO-seq (Nascent RNA)
Growth protocol PRO-seq, S. pombe cultures were grown in YES media from a starting OD600 of 0.2 to a final OD600 = 0.5.
Extracted molecule total RNA
Extraction protocol PRO-seq: Immediately prior to treatments, a fixed amount of spike-in culture (i.e. S. cerevisaie samples) was added to each sample culture for PRO-seq experiment. After treatment, cultures were then spun down and washed once in ice-cold water. Samples were then spun again and resuspended in ice-cold permeabilization buffer (0.05% sarkosyl) and left on ice for 20 minutes. Permeabilized cells were then spun down at 400XG for 5 minutes. Permeabilized cell pellets were resuspeneded in 120 uL 2.5X transcription buffer (50 mM Tris-HCl, pH 7.7, 500 mM KCl, 12.5 mM MgCl2). To the reaction buffer we then added 3.75 uL of each biotin-11-NTP (epicentre), 6 uL .1M DTT, 3 uL SUPERase Inhibitor (invitrogen) and 141 uL DEPC treated water. The run-on was then performed by adding 15 uL 10% sarkosyl and placing samples at 30°C for 5 minutes. After the run-on, samples were spun and the reaction buffer was removed. RNA was then isolated using the hot acid phenol extraction protocol followed by ethanol precipitation. For
PRO-seq libraries were prepared according to Mahat et al. Nature Protocols (2016).
Library strategy OTHER
Library source transcriptomic
Library selection other
Instrument model Illumina NextSeq 500
Data processing Library strategy: PRO-seq
PRO-seq: Adaptor sequences were clipped from read 3' ends. In cases where inline barcodes were used, they were clipped from 5' ends. Sequences were trimmed to a maximum length of 36 (minimum = 15). The reverse complement of reads was generated for alignment.
PRO-seq: Using Bowtie (version 1.0) Reads were first aligned to ribosomal DNA genomes of both S. cerevisiae and S. pombe. Any reads that failed to align to ribosomal DNA were then aligned to a combinded genome of S. cerevisiae and S. pombe. We allowed for a maximum of 2 mismatches Only uniquely aligning reads were used for downstream analysis.
PRO-seq: Unique reads were parsed based on their species of origin. Bedgraph files were created by recording only the most 3' base of each read (which represents the position of the Pol II active site). The counts at each position in a bedgraph file were normalized as counts per million mappable spike-in reads. Normalized bedgraphs were then converted to bigwig formated files.
Genome_build: PRO-seq: S. pombe: ASM294v2; S. cerevisiae: S288C_reference_genome_R64-1-1_20110203.
Supplementary_files_format_and_content: PRO-seq: processed files are in bigwig format. There are two bigwig files for each sample, one for each strand. Each bigwig file contains normalized counts of read 3'-ends.
Submission date Feb 02, 2018
Last update date Jun 07, 2018
Contact name PABITRA K PARUA
E-mail(s) pabitra.parua@einsteinmed.eduy
Phone 7184304284
Organization name Albert Einstein College of Medicine
Department Molecular Pharmacology
Lab Forch-236
Street address 1300 Morris Park Avenue, Forchheimer 236, Molecular Pharmacology
City Bronx
State/province NY
ZIP/Postal code 10461
Country USA
Platform ID GPL20584
Series (1)
GSE102590 A Cdk9-PP1 switch regulates the elongation-termination transition of RNA polymerase II
BioSample SAMN08456616
SRA SRX3642330

Supplementary file Size Download File type/resource 1.2 Mb (ftp)(http) BW 1.2 Mb (ftp)(http) BW
SRA Run SelectorHelp
Processed data are available on Series record
Raw data are available in SRA
Processed data provided as supplementary file

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