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Sample GSM6514639 Query DataSets for GSM6514639
Status Public on Jan 30, 2023
Title bulk RNA SP1380 wild-type replicate 2
Sample type SRA
 
Source name Bacterial culture
Organism Streptococcus pyogenes
Characteristics tissue: Bacterial culture
cell line: SP1380
cell type: Bulk
growth phase: Late logarithmic
Treatment protocol No treatment
Growth protocol Bacteria were statically grown to late-logarithmic growth phase in Todd Hewitt broth supplemented with 1% yeast extract (THY) at 37˚C
Extracted molecule total RNA
Extraction protocol RNA was isolated using the RNeasy Plus Kit (Qiagen). Briefly, bacteria were grown to late-logarithmic growth phase in THY. Two volumes of RNAprotect (Qiagen) were added to the cultures and the samples were then centrifuged at 5,000 x g for 25 min at 4°C to pellet cells. RNA was isolated from the dry pellet as per the manufacturer’s instructions with an additional mechanical lysis step using Lysing Matrix B tubes (MP Biomedicals) on the FastPrep-2 5G bead beating grinder and lysis system (MP Biomedicals). To ensure complete removal of DNA, the RNA was then further purified using the TURBO DNA-free kit (Thermo Fisher Scientific) according to the manufacturer’s instructions.
RNAseq analysis was performed at the Australian Centre for Ecogenomics (University of Queensland, Brisbane, Australia). cDNA libraries were prepared from total RNA using TruSeq Stranded Total RNA Library Prep with Ribo-Zero Plus rRNA Depletion kit (Illumina). Sequencing of the cDNA libraries was performed on the NovaSeq 6000 System (Illumina) on a 2x150 bp SP flowcell run generating an average of 20 million reads per sample.
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina NovaSeq 6000
 
Description Bulk RNA-seq from SP1380 wild type strain
Data processing Size filtering using cutadapt verison 2.8, special parameters: -n 0 -U 0 --action none -m 45
rRNA read filtering using database comprised of rRNA from S. pyogenes SF370, 5448, and HKU488 and SortMeRNA version 4.3.4, special parameters: --fastx
Alignment of reads against SP1380 (CP060269) using BWA-mem, bwa version 0.7.17
Read counting using FeatureCounts, subreads version 2.0.0, special parameters: -s 1 --largestOverlap -B -t gene -g ID
Differential expression analysis using Deseq2 v.1.32.0 in R v. 4.0.0. SP1380 mutants compared invididually to SP1380 WT
Assembly: CP060269
Supplementary files format and content: SP1380_count_file.tsv - Tab seperated file - Count of SP1380 wildtype and mutants against SP1380 reference genome
Supplementary files format and content: SP1380_WT_v_ssrA.tsv - Tab seperated file - Differential gene expression results comparing SP1380 wild-type to ssRA mutant
Supplementary files format and content: SP1380_WT_v_rofA.tsv - Tab seperated file - Differential gene expression results comparing SP1380 wild-type to rofA mutant
 
Submission date Aug 29, 2022
Last update date Jan 30, 2023
Contact name Magnus Ganer Jespersen
Organization name The University of Melbourne
Street address 792 Elizabeth street
City Parkville
State/province Victoria
ZIP/Postal code 3052
Country Australia
 
Platform ID GPL28678
Series (2)
GSE212241 Characterisation of the genetic mutation driving enhanced superantigen SpeA expression in Streptococcus pyogenes M1UK (second SP1380)
GSE212243 Characterisation of the genetic mutation driving enhanced superantigen SpeA expression in Streptococcus pyogenes M1UK
Relations
BioSample SAMN30559720
SRA SRX17302345

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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