Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1015272 | ENA |
REPOSITORIES: ENA
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Project description:Campylobacter jejuni is a human pathogen which causes campylobacteriosis, one of the most widespread zoonotic enteric diseases worldwide. Growth of Campylobacter can be improved through the addition of glutamine to media which serves as the nitrogen source. RNAseq was used to identify the transcriptomic response of Campylobacter jejuni when the nitrogen source was switched from serine (poor growth) to glutamine (good growth) in chemostat cultures.
2022-12-01 | E-MTAB-11495 | biostudies-arrayexpress
Project description:Campylobacter jejuni is a human pathogen which causes campylobacteriosis, one of the most widespread zoonotic enteric diseases worldwide. Most cases of sporadic C. jejuni infection occur through the handling or consumption of undercooked chicken meat, or cross-contamination of other foods with raw poultry fluid. A common practice to combat Campylobacter infection is to treat chickens with chlorine which kills the microbe. This analysis aimed to elucidate the transcriptomic response of Campylobacter jejuni treated with hypochlorite through Illumina sequencing. C. jejuni was grown and treated with hypochlorite. Samples were taken 5, 20 and 45 min after treatment for RNAseq analysis.The data generated were compared to the transcriptome pre-exposure to determine C. jejuni's response to hypochlorite.
2023-10-01 | E-MTAB-11479 | biostudies-arrayexpress
Project description:Fluoroquinolones (FQs) are one class of commonly used antimicrobials in clinical therapy of diseases caused by Campylobacter and other foodborne pathogens. The molecular mechanisms underlying the response of Campylobacter to FQ treatment is of interest because unlike other enteric bacteria, Campylobacter lacks many genes encoding components of DNA repair systems and SOS response. To understand how Campylobacter survive antibiotic treatment, DNA microarray was used to compare the gene expression profiles of C. jejuni 11168 in the presence and absence of ciprofloxacin. Our analysis identified 45 genes that showed ≥1.5-fold (p<0.05) changes in expression in the presence of ciprofloxacin. The up-regulated genes (13) are involved in cell membrane biosynthesis and DNA repair or have unknown functions, while the majority of the down-regulated genes (32) are involved in cellular process and energy metabolism. These findings suggest that C. jejuni modulates membrane biosynthesis, increases spontaneous mutation rates, and decreases metabolism in response to fluoroquinolone treatment. Keywords: 0.06 µg/ml (0.5X MIC) or 1.2 µg/ml (10X MIC) ciprofloxacin treated campylobacter VS. untreated campylobacter, the bacterial cells were treated for 0.5 hour
2008-06-09 | GSE10471 | GEO
Project description:Campylobacter jejuni is a human pathogen which causes Campylobacteriosis, one of the most widespread zoonotic enteric diseases worldwide. ModE is a transcriptional regulator that controls molybdenum uptake in many bacteria. modE (cj1507c) was deleted from C. jejuni NCTC11168 and grown alongside the parental wild type to mid-log phase in defined medium containing replete Mo, W and Se. Samples were taken for RNAseq analysis and used to compare gene expression.
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