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ERX1668217: Illumina HiSeq 2500 paired end sequencing; RNA-seq analysis of Helicobacter cinaedi ATCC BAA-847 under microaerobic and aerobic culture conditions
1 ILLUMINA (Illumina HiSeq 2500) run: 23.8M spots, 2.4G bases, 1.4Gb downloads

Design: RNA-seq analysis of Helicobacter cinaedi ATCC BAA-847 under microaerobic and aerobic culture conditions
Submitted by: Vanderilt University Medical Center Department of Pathology, Microbiology, and Immunology (Vanderilt University Medical Center Department of )
Study: RNA-seq analysis of Helicobacter cinaedi ATCC BAA-847 under microaerobic and aerobic culture conditions
show Abstracthide Abstract
Helicobacter cinaedi is an emerging bacterial pathogen of immunosuppressed individuals. The species is traditionally thought to require an H2-enhanced microaerobic atmosphere for growth, although it can proliferate under aerobic conditions when co-cultured with epithelial monolayers or supplemented with certain metabolites (notably, L-lactate). The goal of this experiment was to assess the global transcription changes that occur in the H. cinaedi type strain (ATCC BAA-847) under various media and atmospheric conditions. These include bacterial monoculture, as well as co-culture with Caco-2 intestinal epithelial cells. In total, Illumina mRNA-seq (stranded, paired-end) was performed on H. cinaedi grown under 9 in vitro culture conditions (4-5 biologic replicates per condition).
Sample: Condition #5, Replicate #2
SAMEA4394487 • ERS1305936 • All experiments • All runs
Library:
Name: Condition #5, Replicate #2_p
Instrument: Illumina HiSeq 2500
Strategy: RNA-Seq
Source: TRANSCRIPTOMIC
Selection: RANDOM
Layout: PAIRED
Construction protocol: Following an initial inoculum of OD600 = 0.01, Helicobacter cinaedi ATCC BAA-847 was propagated at 37°C under the following mono-culture (bacteria) and co-culture (bacteria + epithelial monolayer) conditions: [1] monophasic (liquid alone) F12 medium, H2-supplemented microaerobic atmosphere (n=4); [2] biphasic (liquid over agar) F12 medium, H2-supplemented microaerobic atmosphere (n=4); [3] biphasic F12 medium, H2-free/CO2-supplemented microaerobic atmosphere (n=4); [4] F12 medium over Caco-2 monolayer, H2-supplemented microaerobic atmosphere (n=5); [5] F12 medium over Caco-2 monolayer, CO2-supplemented aerobic atmosphere (n=5); [6] monophasic F12 medium + 10 mM L-lactate, H2-supplemented microaerobic atmosphere (n=4); [7] monophasic F12 medium + 10 mM L-lactate, CO2-supplemented aerobic atmosphere (n=4); [8] monophasic Mueller Hinton broth, H2-supplemented microaerobic atmosphere (n=4); [9] biphasic F12 medium + 10% normal human serum (commercially acquired), H2-supplemented microaerobic atmosphere (n=5). After 24 hours of growth, total RNA was extracted from H. cinaedi specimens. In brief, two volumes of RNA Protect Bacterial Reagent (Qiagen) were added to each culture. Pelleted bacteria were re-treated (10 minutes, 65ºC) with Max Bacterial RNA Enhancement Reagent (Ambion), followed by TRIzol extraction and spin column purification (miRNeasy Mini Kit, Qiagen) of total RNA. Nucleic acid quality was assessed by 260/280 absorbance and 23S/16S rRNA ratios. Illumina library preparation was performed at the Vanderbilt University sequencing core (VANTAGE – Vanderbilt Technologies for Advanced Genomics). From each specimen, ribosomal RNA was depleted with the Gram-Negative Ribo-Zero rRNA Removal Kit (Epicenter). cDNA libraries was constructed for Illumina sequencing through the TruSeq Stranded mRNA Library Prep Kit (Illumina).
Spot descriptor:
forward52  reverse

Experiment attributes:
Experimental Factor: F12 medium + Caco-2 cells: growth condition
Experimental Factor: CO2-supplemented aerobic: environmental stress
Runs: 1 run, 23.8M spots, 2.4G bases, 1.4Gb
Run# of Spots# of BasesSizePublished
ERR159765023,763,3932.4G1.4Gb2016-09-30

ID:
3201917

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