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Pseudomonas aeruginosa PAO1

ABSTRACT: The ParS/ParR regulon in Pseudomonas aeruginosa PAO1

PROVIDER: PRJNA190894 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR765820.fastq.gz	Fastqsanger.gz
	SRR765821.fastq.gz	Fastqsanger.gz
	SRR765822.fastq.gz	Fastqsanger.gz
	SRR765823.fastq.gz	Fastqsanger.gz
	SRR765824.fastq.gz	Fastqsanger.gz

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The ParS/ParR regulon in Pseudomonas aeruginosa PAO1

Project description:The ParS/ParR two component regulatory system plays important roles for multidrug resistance in Pseudomonas aeruginosa. In this study we report RNA-seq analyses of the transcriptomes of P. aeruginosa PAO1 wild type and par mutants growing in a minimal medium containing 2% casamino acids. This has allowed the quantification of PAO1 transcriptome, and further defines the regulon that is dependent on the ParS/ParR system for expression. Our RNA-seq analysis produced the first estimates of absolute transcript abundance for the 5570 coding genes in P. aeruginosa PAO1. Comparative transcriptomics of P. aeruginosa PAO1 and par mutants identified a total of 464 genes regulated by ParS and ParR. Results also showed that mutations in the parS/parR system abolished the expression of the mexEF-oprN operon by down-regulating the regulatory gene mexS. In addition to affecting drug resistance genes, transcripts of quorum sensing genes (rhlIR and pqsABCDE-phnAB), were significantly up-regulated in both parS and parR mutants. Consistent with these results, a significant portion of the ParS/ParR regulated genes belonged to the MexEF-OprN and quorum sensing regulons. Deletion of par genes also lead to overproduction of phenazines and increased swarming motility, consistent with the up-regulation of quorum sensing genes. Our results established a link among ParS/ParR, MexEF-OprN and quorum sensing in Pseudomonas aeruginosa. Based on these results, we propose a model to illustrate the relationship among these regulatory systems in P. aeruginosa.

2016-02-26 | GSE44681 | GEO

The ParS/ParR regulon in Pseudomonas aeruginosa PAO1

2016-02-26 | E-GEOD-44681 | biostudies-arrayexpress

Pseudomonas aeruginosa PAO1 response to sphingomyelin

Project description:Analysis of Pseudomonas aeruginosa PAO1 treated with 200 µM sphingomyelin. Results provide insight into the response to sphingomyelin in P. aeruginosa.

2017-02-12 | GSE83078 | GEO

Genomic DNA hybridization of Pseudomonas aeruginosa strains PAO1 and PA14

Project description:Genomic DNA from Pseudomonas aeruginosa strains PAO1 and PA14

2015-11-15 | GSE67038 | GEO

Pseudomonas aeruginosa PAO1 virulent genes in the poplar rhizosphere

Project description:Pseudomonas aeruginosa PAO1 contacted with and without poplar roots gene expression Poplar contacted with and without PAO1 gene expression. All samples cultured in 1 x hrp + 0.25 % sucrose Keywords: Contact with different species

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Transcriptional modulation of Quoring-sensing signaling throught QslA in Pseudomonas aeruginosa PA14 and PAO1.

Project description:To further determine the origin of the increased virulence of Pseudomonas aeruginosa PA14 compared to Pseudomonas aeruginosa PAO1, we report a transcriptomic approach through RNA sequencing. Next-generation sequencing (NGS) has revolutioned sistems-based analsis of transcriptomic pathways. The goals of this study are to compare the transcriptomic profile of all 5263 orthologous genes of these nearly two strains of Pseudomonas aeruginosa.

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Expression data from persister and normal cells of Pseudomonas aeruginosa PAO1

Project description:Pseudomonas aeruginosa PAO1 persister and normal cells were treated with and without Granulocyte Macrophage Colony-Stimulating Factor (GM-CSF) to understand the effect of GM-CSF on gene expression of PAO1. We used DNA microarrays to identify the down-regulated and up-regulated genes after GM-CSF treatment.

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Grad-seq in Pseudomonas aeruginosa PAO1

Project description:Protein complexome analysis of Pseudomonas aeruginosa PAO1 at OD 0.3 in LB media through 10-40% glycerol gradient fractionation in 21 samples.

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Comparative transcriptomic profiling of overexpression of PsrA in Pseudomonas aeruginosa PAO1

Project description:PsrA, a transcription factor belonging to the TetR family, is known to participate in the regulation of fatty acid metabolism, type III secretion system, and quinolone signaling in Pseudomonas aeruginosa. Using a psrA overexpression strain, this study conducted a transcriptomic analysis to examine the role of PsrA in P. aeruginosa PAO1.

2024-07-05 | GSE249518 | GEO

Expression profile of Pseudomonas aeruginosa ΔgcsR PAO1 using RNA-Seq

Project description:The TyrR-like enhancer-binding protein GcsR (or PA2449) was shown to regulate the expression of genes required for glycine metabolism. In order to define the regulon of GcsR we compared the transcriptome of a gcsR deletion mutant of P. aeruginosa PAO1 with that of the wild-type using RNA-Seq.

2016-01-08 | GSE76522 | GEO

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