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Sample GSM4976979 Query DataSets for GSM4976979
Status Public on Aug 29, 2022
Title WT_1
Sample type SRA
 
Source name bacteria cells
Organism Staphylococcus aureus
Characteristics strain: USA300
medium: RPMI-1640 with 10% Lysogeny broth (LB)
phase: mid-log phase
genotype: wild type
Treatment protocol the media was RPMI-1640 with 10% Lysogeny broth (LB) ; no other treatments
Growth protocol glycerol stocks of S. aureus JE2 and cody mutant strains were inoculated into RPMI-1640 with 10% Lysogeny broth (LB) . The culture was incubated at 37 degree overnight with agitation, and then was used to inoculate the fresh media (1/200 dilution). The volume of the fresh media was 150 mL for each biological replicate. The fresh culture was incubated at 37 oC with agitation to the mid-log phase (OD600 ≈ 0.5).
Extracted molecule total RNA
Extraction protocol Three milliliters of cells from mid-log phase culture were mixed with 6 ml RNAprotect Bacteria Reagent (Qiagen), mixed immediately by vortexing for 5 seconds, incubated for 5 minutes at room temperature, and then centrifuged at 5000g for 10 minutes. The supernatant was decanted and any residual supernatant was removed, then samples were frozen at -80℃. Next, RNA was harvested using RNeasy Plus Mini kit (Qiagen) in accordance with the manufacturer’s instruction. Illumina Ribo-Zero rRNA removal kit (bacteria) (gram-positive bacterial kit) was used with 1 ug of total RNA for the removal of rRNA procedure. Then KAPA RNA HyperPrep kits(Cat.No.08098107702) was used with rRNA-depleted RNA samples for the construction of sequencing libraries.
RNA libraries were prepared for sequencing using standard Illumina protocols
 
Library strategy RNA-Seq
Library source transcriptomic
Library selection cDNA
Instrument model Illumina HiSeq 4000
 
Description JE_WT_1
Data processing The base calling was done using Illumina’s Real-Time Analysis (RTA) v2.7.7; data was converted to fastq and demultiplexed using Illumina’s bcl2fastq2 Conversion Software v2.20;
Sequence reads generated from RNA-seq were mapped onto each reference genome using bowtie with the maximum insert size of 2000 bp, and 2 maximum mismatches after trimming 3 bp at 3’ ends
SAM files generated from bowtie, then, were then used for DESeq(https://bioconductor.org/packages/release/bioc/html/DESeq.html)
DESeq2 was run with default options with the library type of dUTP RNA-seq and the default normalization method
Genome_build: The reference genome used in this study is: NC_007793.1 for WT and cody mutant strains
Supplementary_files_format_and_content: tab-delimited text file containing TPM values for each sample
 
Submission date Dec 16, 2020
Last update date Aug 29, 2022
Contact name Ye Gao
E-mail(s) yeg002@ucsd.edu
Organization name UCSD
Street address 9500 Gilman Dr.
City La Jolla
ZIP/Postal code 92093
Country USA
 
Platform ID GPL25144
Series (1)
GSE163312 Elucidating the CodY regulon in Staphylococcus aureus USA300 lineage using ChIPexo
Relations
BioSample SAMN17089247
SRA SRX9689984

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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