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Sample GSM1268943 Query DataSets for GSM1268943
Status Public on Dec 02, 2013
Title 3P-seqs in HEK293 cells
Sample type SRA
 
Source name HEK293 cells
Organism Homo sapiens
Characteristics data type: 3P-seq fastq
cell line: HEK293 cells
Extracted molecule total RNA
Extraction protocol RNA from cell lines was isolated by adding a steel bead and 1 mL TRI Reagent to tissues and then vortexing for two minutes in a TissueLyser II (Qiagen) at 30 Hz, twice. The homogenate was centrifuged for 8 min at 12,000xg and the supernatant was purified according to manufacturer’s protocol with an additional phenol/chloroform extraction after phase separation.
3P-Seq libraries were prepared from 75 μg of isolated RNA (HeLa, HEK293, Huh7, IMR90 cells) as described previously (Jan et al., 2011) with modifications (see Supplemental Information).
 
Library strategy OTHER
Library source transcriptomic
Library selection other
Instrument model Illumina Genome Analyzer II
 
Data processing Basecalls performed using CASAVA version 1.7
Reads are reverse-complemented first and mapped reads with at least one untemplated adenylate residue using Bowtie with option (bowtie -p 4 -q --phred33-quals -5 3 -l 25 -n 1 -e 240 --best --strata -m 1).
We considered as a cluster those 3P-tags ending 31 nucleotides within the most frequently implicated cleavage position, which was then regarded as a candidate poly(A) cleavage site.
To control for PCR amplification bias, we only used those clusters with at least two identifiably independent reads in our downstream analysis (e.g. tags with different ends, different number 3’-terminal adenylates, and/or from two different libraries).
Genome_build: hg19
Supplementary_files_format_and_content: bed files including 3P-seq clusters
 
Submission date Nov 19, 2013
Last update date May 15, 2019
Contact name Jin-Wu Nam
E-mail(s) coya75@gmail.com
Organization name Hanyang University
Street address 222 Wangsimni Seongdong-gu
City Seoul
ZIP/Postal code 133-791
Country South Korea
 
Platform ID GPL9115
Series (2)
GSE52527 Global analyses of the effect of different cellular contexts on microRNA targeting (3P-Seq Human)
GSE52531 Global analyses of the effect of different cellular contexts on microRNA targeting
Relations
BioSample SAMN02412854
SRA SRX380414

Supplementary file Size Download File type/resource
GSM1268943_hek293.15.sumCM.bed.gz 751.1 Kb (ftp)(http) BED
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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