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Sample GSM5033092 Query DataSets for GSM5033092
Status Public on Jul 01, 2021
Title REB039: MG1655 wt stat rep 1
Sample type SRA
 
Source name MG1655 wt
Organism Escherichia coli str. K-12 substr. MG1655
Characteristics strain: MG1655
growth condition: stationary phase
genotype: wt
Growth protocol Stationary phase cells were obtained by propagating strains statically for two serial 24 hour passages at 37°C, with a 1:1000 dilution between passages (identical to the inoculum used for mouse infections). Log phase cells were obtained by diluting overnight cultures 1:100 in LB and growing to log phase (OD600 = 0.4 – 0.5) at 37°C with shaking.
Extracted molecule total RNA
Extraction protocol RNA extraction with the Qiagen RNAEasy Mini Kit; ribosomal depletion with the Ribo Zero rRNA removal kit
RNA libraries were prepared using the ScriptSeq v2 RNA-seq library preparation kit
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina MiSeq
 
Description REB039
Data processing Raw sequencing reads were mapped to their respective reference genomes: RefSeq accession GCF_000013265.1 for E. coli UTI89, GCF_000005845.2 for E. coli MG1655 and GCF_000007445.1 for E. coli CFT073 using BWA-MEM (version 0.7.10) with default parameters, then the resulting bam files were sorted and deduplicated using PicardTools v.2.2.2
HTseq was used to quantify sequencing reads mapping to predicted open reading frames (ORFs)
Ribosomal RNA (rRNA) and transfer RNA (tRNA) sequences (based on the corresponding Genbank RefSeq annotation) were filtered out of the data set.
R (version 2.15.1) was used for differential expression analysis, using the edgeR package (samples were normalized by TMM (trimmed median of means), common and tagwise dispersion factors were estimated using a negative binomial model, and then fold change values were calculated from these normalized counts)
Genome_build: RefSeq accession GCF_000013265.1 for E. coli UTI89, GCF_000005845.2 for E. coli MG1655 and GCF_000007445.1 for E. coli CFT073
Supplementary_files_format_and_content: Tab-delimited text files with normalized expression values, fold change, P-values, and FDR values.
 
Submission date Jan 25, 2021
Last update date Jul 01, 2021
Contact name Swaine L Chen
E-mail(s) [email protected]
Organization name National University of Singapore and Genome Institute of Singapore
Department Medicine
Lab Bacterial Genomics
Street address 60 Biopolis Street, Genome, #02-01
City Singapore
State/province Singapore
ZIP/Postal code 138672
Country Singapore
 
Platform ID GPL17439
Series (1)
GSE165421 Testing the impact of Type I Restriction Modification Systems on Gene Expression in Uropathogenic Escherichia coli
Relations
BioSample SAMN17527668
SRA SRX9931060

Supplementary data files not provided
SRA Run SelectorHelp
Raw data are available in SRA
Processed data are available on Series record

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