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Addition of Exogenous AI-2 to C. jejuni 11168 Wild Type and LuxS01.

ABSTRACT: Transcriptional profiling of Campylobacter jejuni NCTC 11168 wild type and LuxS01 mutant strains comparing the effects of exogenously added in vitro-produced autoinducer 2 (AI-2) versus a control buffer to both strains.

ORGANISM(S): Campylobacter jejuni subsp. jejuni NCTC 11168 = ATCC 700819 Campylobacter jejuni

PROVIDER: GSE18427 | GEO | 2009/10/08

SECONDARY ACCESSION(S): PRJNA123335

REPOSITORIES: GEO

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Addition of Exogenous AI-2 to C. jejuni 11168 Wild Type and LuxS01.

Project description:Transcriptional profiling of Campylobacter jejuni NCTC 11168 wild type and LuxS01 mutant strains comparing the effects of exogenously added in vitro-produced autoinducer 2 (AI-2) versus a control buffer to both strains. Two-condition experiment, addition of exogenous AI-2 to both the parent and mutant 11168 strains. Control microarrays included comparing 11168 with AI-2 free buffer vs 11168 with AI-2-free buffer and mutant with AI-2 free buffer versus mutant with AI-2 free buffer used for analyses. 3 biological replicates for each, independently grown and harvested.

2010-06-21 | E-GEOD-18427 | biostudies-arrayexpress

Differential RNA-sequencing of Campylobacter jejuni NCTC 11168

Project description:We report the use of differential RNA-sequencing for the determination of the primary transcriptome of wildtype Campylobacter jejuni NCTC 11168. This allows for the genome-wide determination of transcription start sites.

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RNA-sequencing of Campylobacter jejuni NCTC 11168 wildtype and fur perR mutant

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RNA-sequencing of Campylobacter jejuni NCTC 11168 wildtype and fur perR mutant

Project description:We report the use of RNA-seq analysis for the determination of RPKM transcript levels in wildtype and fur perR mutant of Campylobacter jejuni NCTC 11168. This allows for comparison of gene expression levels. Campylobacter jejuni NCTC 11168 wildtype and fur perR mutant were grown to late log phase, RNA was purified and used for RNA-sequencing by Illumina HiSeq sequencing

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Transcriptional profiles of Campylobacter jejuni NCTC 11168 to 4mg/L erythromycin treatment

Project description:Erythromycin is the drug of choice to treat campylobacteriosis, but resistance to this antibiotic is rising. The adaptive mechanisms employed by Campylobacter jejuni to erythromycin treatment remain unknown. The aim of this study is to determine the molecular basis underlying CampylobacterM-bM-^@M-^Ys immediate response to Ery treatment. The design utilized an available two color microarray slide for the entire transcriptome of Campylobacter jejuni wild type strain NCTC 11168. One hybridizations were performed: sham-treated NCTC 11168 v.s. lethal dose erythromycin treated NCTC 11168. Samples were independently grown and harvested. There were three biological replicates of each sample.

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Transcriptional profiles of Campylobacter jejuni NCTC 11168 to 0.125mg/L erythromycin treatment

Project description:Erythromycin is the drug of choice to treat campylobacteriosis, but resistance to this antibiotic is rising. The adaptive mechanisms employed by Campylobacter jejuni to erythromycin treatment remain unknown. The aim of this study is to determine the molecular basis underlying CampylobacterM-bM-^@M-^Ys immediate response to Ery treatment. The design utilized an available two color microarray slide for the entire transcriptome of Campylobacter jejuni wild type strain NCTC 11168. One hybridizations were performed: sham-treated NCTC 11168 v.s. sub-lethal dose erythromycin treated NCTC 11168. Samples were independently grown and harvested. There were three biological replicates of each sample.

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Genomic and Proteomic Characterization of Sessile and Planktonic Campylobacter jejuni NCTC 11168

Project description:In order to understand the cellular mechanisms that facilitate a surface-associated lifestyle, expression profiles were determined at the levels of transcription and translation for sessile and planktonic Campylobacter jejuni NCTC 11168 (obtained from American Type Culture Collection (ATCC 700819)). These investigations indicate that the immobilized bacteria undergo a shift in cellular priorities away from metabolic, motility and protein synthesis capabilities towards emphasis on iron uptake, oxidative stress defense and membrane transport. Keywords: transcript profiling

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Wild Type 11168 versus LuxS01 Mutant Cultured in MHB and MEM- α media

Project description:Transcriptional profiling of Campylobacter jejuni NCTC 11168 wild type versus LuxS01 mutant strain grown in a minimal culture medium (MEM- α ) versus complex culture medium (MHB).

2009-10-08 | GSE18451 | GEO

Comparison of the genome-sequenced variant of Campylobacter jejuni NCTC 11168 and the original clonal clinical isolate

Project description:Abstract: The genome sequence of the enteric bacterial pathogen Campylobacter jejuni NCTC 11168 (11168-GS) was published in 2000, providing a valuable resource for the identification of C. jejuni-specific colonization and virulence factors. Surprisingly, the 11168-GS clone was subsequently found to colonize 1-day-old chicks following oral challenge very poorly compared to other strains. In contrast, we have found that the original clinical isolate from which 11168-GS was derived, 11168-O, is an excellent colonizer of chicks. Other marked phenotypic differences were also identified: 11168-O invaded and translocated through tissue culture cells far more efficiently and rapidly than 11168-GS, was significantly more motile, and displayed a different morphology. Serotyping, multiple high-resolution molecular genotyping procedures, and subtractive hybridization did not yield observable genetic differences between the variants, suggesting that they are clonal. However, microarray transcriptional profiling of these strains under microaerobic and severely oxygen-limited conditions revealed dramatic expression differences for several gene families. Many of the differences were in respiration and metabolism genes and operons, suggesting that adaptation to different oxygen tensions may influence colonization potential. This correlates biologically with our observation that anaerobically priming 11168-GS or aerobically passaging 11168-O caused an increase or decrease, respectively, in colonization compared to the parent strain. Expression differences were also observed for several flagellar genes and other less well-characterized genes that may participate in motility. Targeted sequencing of the sigma factors revealed specific DNA differences undetected by the other genomic methods This SuperSeries is composed of the SubSeries listed below.

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