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Campylobacter jejuni subsp. jejuni 81-176

ABSTRACT: Campylobacter jejuni subsp. jejuni 81-176 Genome sequencing

PROVIDER: PRJNA213222 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR942779_1.fastq.gz	Fastqsanger.gz
	SRR942779_2.fastq.gz	Fastqsanger.gz
	SRR942780_1.fastq.gz	Fastqsanger.gz
	SRR942780_2.fastq.gz	Fastqsanger.gz
	SRR942781_1.fastq.gz	Fastqsanger.gz

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Transcriptomic changes of Campylobacter jejuni subsp. jejuni strain 81-176 in water

Project description:Campylobacter jejuni is the leading cause of campylobacteriosis in the developed world. Although most cases are caused by consumption of contaminated meat, a significant proportion is caused by consumption of contaminated water. Some C. jejuni isolates are better than others at surviving in water, which suggests that these strains are better adapted to transmission by water than others. The aim of this study is to investigate this phenomenon further. CFU counts and viability assays showed that strain 81116 survives better than strain 81-176 in a defined freshwater medium at 4°C. Comparative transcriptomic profiling using microarray revealed that these strains respond differently to water. This series presents the transcriptome of strain 81-176 in water.

2017-09-01 | GSE94929 | GEO

Campylobacter jejuni subsp. jejuni 81-176

Project description:Campylobacter jejuni subsp. jejuni 81-176 Raw sequence reads

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Campylobacter jejuni subsp. jejuni 81-176

Project description:Transcriptomic changes of Campylobacter jejuni subsp. jejuni strain 81-176 in water

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Campylobacter jejuni subsp. jejuni 81-176-UMCW9

Project description:Campylobacter jejuni subsp. jejuni 81-176-UMCW9 Genome sequencing and assembly

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Campylobacter jejuni subsp. jejuni 81-176-UMCW7

Project description:Campylobacter jejuni subsp. jejuni 81-176-UMCW7 Genome sequencing and assembly

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Campylobacter jejuni subsp. jejuni 81-176-DRH212

Project description:Campylobacter jejuni subsp. jejuni 81-176-DRH212 Genome sequencing and assembly

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Campylobacter jejuni subsp. jejuni 81-176

Project description:Campylobacter jejuni subsp. jejuni 81-176 RNA-Seq in culture, during infection of chicks

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Transcriptional profile in the macrolide resistant C. jejuni strains selected from 81-176

Project description:Campylobacter, a major foodborne pathogen, is increasingly resistant to macrolide antibibotics. previous findings suggeted that development of macrolide resistance in campylobacter requires a multi-step process, but the molecular mechanisms involved in the process are not known. In our study, multiple seriess of macrolide-resistant C. jejuni mutants were selected in vitro by stepwise exposure of C. jejuni 81-176 to increasing concentrations of erythromycin and tylosin. A set of the selected resistance were subjected to microarray and the the global transcriptional profile was analyzed. In this sery, DNA microarray was used to compare the gene expression profiles of macrolide resistant strains (76E2, 76E8 and 76E64) with its parent wild-type strain C. jejuni 81-176. This assay identified a large number of genes that showed >1.5 fold changes (q-value<0.1) in expression in the macrolide resistant strains. The up-regulated genes are involved in surface structure,ribosomal, heat shock and some specific Misc memerbrane , while the majority of the down-regulated genes are involved in energy metabolism, amino acid biosynthesis. The over-expression of genes involved in surface structure and Misc memerbrance was associated with the development of intermedial-level resistance to macrolide in campylobacter 81-176. Keywords:intermedial-level macrolide resistant C. jejuni selected from C. jejuni 81-176. step-wise selection.

2010-12-28 | GSE17899 | GEO

Transcriptional profile in the macrolide resistant C. jejuni strains selected from 81-176

2010-12-28 | E-GEOD-17899 | biostudies-arrayexpress

Transcriptional profiling of Campylobacter jejuni wild-type 81-176 and its ciprofloxacin-resistant derivative (P3) in the presence and absence of ciprofloxacin

Project description:Campylobacter jejuni is one of the most important zoonotic enteric bacterial pathogens able to colonize the gastrointestinal tract of various animals. The number of campylobacteriosis cases has increased worldwide and the particular concern has been the high level of fluoroquinolone resistance observed in C. jejuni isolates. In this study, we explored the effect of ciprofloxacin in Campylobacter jejuni by gene expression microarray analysis. The comparisons of transcriptional responses were performed in the absence and presence of ciprofloxacin with the wild-type strain 81-176 and its intermediate-resistant variant (P3). The resistant variant contained a single-nucleotide mutation causing amino acid change Asp-90-Asn in the gyrA gene instead of the most common Thr-86-Ile, causing a high-level resistance to ciprofloxacin. After the short-term exposure to a relatively high concentration of ciprofloxacin, the viability of C. jejuni 81-176 wild-type cells remained notably high when compared with other gram-negative bacteria. The general responses of short-term ciprofloxacin exposure were determined from both genetic backgrounds and resulted in the expression variation of genes participating in general cellular processes, e.g. , in carbon and amino-acid metabolism and protein transport.

2012-12-31 | GSE41822 | GEO

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