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Sample GSM391677 Query DataSets for GSM391677
Status Public on Jan 05, 2010
Title DsigB_replicate2
Sample type SRA
 
Source name 10403S isogenic mutant
Organism Listeria monocytogenes
Characteristics strain: 10403S lacking sigB
Treatment protocol RNAProtect bacterial reagent (Qiagen, Valencia, CA) was added according to the manufacturer’s instructions to the cultures grown to stationary phase; treated cells were stored at -80ºC (for no longer than 24 h) until RNA isolation was performed.
Growth protocol Bacteria were grown in 5 ml Brain Heart Infusion (BHI) broth (BD Difco, Franklin Lakes, NJ) at 37ºC with shaking (230 rpm) for 15 h, followed by transfer of a 1% inoculum to 5 ml pre-warmed BHI. After growth to OD600 ~ 0.4, a 1% inoculum was transferred to a 300 ml nephelo flask (Bellco, Vineland, NJ) containing 50 ml pre-warmed BHI. This culture was incubated at 37ºC with shaking until cells reached stationary phase (defined as growth to OD600 = 1.0, followed by incubation for an additional 3 h). Two independent growth replicates and RNA isolations were performed for each strain.
Extracted molecule total RNA
Extraction protocol Bacterial cells were treated with lysozyme followed by 6 sonication cycles at 18W on ice for 30s. Total RNA was isolated and purified using the RNeasy Midi kit (Qiagen) according to the manufacturer’s protocol; RNA molecules <200 nt in length are not recovered well with this procedure, according to the manufacturer. RNA was eluted from the column using RNase-free water. Total RNA was incubated with RQ1 DNase (Promega, Madison, WI) in the presence of RNasin (Promega) to remove remaining DNA. Subsequently, RNA was purified using two phenol-chloroform extractions and one chloroform extraction, followed by RNA precipitation and resuspension of the RNA in RNAse free TE (10 mM Tris, 1 mM EDTA; pH 8.0; Ambion, Austin, TX). UV spectrophotometry (Nanodrop, Wilmington, DE) was used to quantify and assess purity of the RNA.
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina Genome Analyzer
 
Description 10403S lacking sigB
Data processing Processed data files (eland) contain alignment of short-reads against the 10403S supercontigs.
 
Submission date Apr 13, 2009
Last update date May 15, 2019
Contact name Lalit Ponnala
E-mail(s) [email protected]
Organization name Cornell University
Street address 616 Rhodes Hall
City Ithaca
State/province NY
ZIP/Postal code 14853
Country USA
 
Platform ID GPL9363
Series (1)
GSE15651 Listeria monocytogenes Transcriptome with RNA-Seq
Relations
SRA SRX016003
BioSample SAMN00008198

Supplementary file Size Download File type/resource
GSM391677_r2s2_eland_out.txt.gz 81.5 Mb (ftp)(http) TXT
SRA Run SelectorHelp
Processed data provided as supplementary file
Raw data are available in SRA

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