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Pseudomonas aeruginosa PA14

ABSTRACT: Experimental evolution of antibiotic resistance with Pseudomonas aeruginosa PA14

PROVIDER: PRJNA319000 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR3436670_1.fastq.gz	Fastqsanger.gz
	SRR3436670_2.fastq.gz	Fastqsanger.gz
	SRR3436750_1.fastq.gz	Fastqsanger.gz
	SRR3436750_2.fastq.gz	Fastqsanger.gz
	SRR3436780_1.fastq.gz	Fastqsanger.gz

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Proteomics of Pseudomonas aeruginosa PAO1 and PA14

Project description:Recent studies have shown that the concentrations of proteins expressed from orthologous genes are often conserved across organisms, and to a greater extent than the abundances of the corresponding mRNAs. However, such studies have not distinguished between evolutionary (e.g., sequence divergence) and environmental (e.g., growth condition) effects on the regulation of steady-state protein and mRNA abundances. Here we systematically investigated the transcriptome and proteome of two closely related Pseudomonas aeruginosa strains, PAO1 and PA14, under identical experimental conditions, thus controlling for environmental effects. For 703 genes observed by both shotgun proteomics and microarray experiments, we find that the protein-to-mRNA ratios are highly correlated between orthologous genes in the two strains, to an extent comparable to protein and mRNA abundances. In spite of this high molecular similarity between PAO1 and PA14, we found that several metabolic, virulence, and antibiotic resistance genes are differentially expressed between the two strains, mostly at the protein but not at the mRNA level. Our data demonstrate that post-transcriptional regulation is important for understanding the discordance between mRNA and protein abundance.

2014-05-08 | PXD000684 | Pride

Genomic DNA hybridization of Pseudomonas aeruginosa strains PAO1 and PA14

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

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Pseudomonas aeruginosa PA14 wild-type vs the tpbA (PA14_13660) mutant

Project description:Microarray analysis for the biofilm cells of Pseudomonas aeruginosa PA14 wild-type vs the tpbA (PA14_13660) mutant in LB medium at 4 and 7 h at 37C Microarray analysis for the biofilm cells of Pseudomonas aeruginosa PA14 wild-type vs the tpbA (PA14_13660) mutant in LB medium at 4 and 7 h at 37C.

2009-05-23 | E-GEOD-13871 | biostudies-arrayexpress

Pseudomonas aeruginosa PA14 wild-type vs the tpbA (PA14_13660) mutant

Project description:Microarray analysis for the biofilm cells of Pseudomonas aeruginosa PA14 wild-type vs the tpbA (PA14_13660) mutant in LB medium at 4 and 7 h at 37C

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Expression profile for higA mutant of Pseudomonas aeruginosa PA14

Project description:The previously uncharacterized proteins HigB (unannotated) and HigA (PA4674) of Pseudomonas aeruginosa PA14 were found to form a type II TA system in which antitoxin HigA masks the RNase activity of toxin HigB through direct binding. To determine the physiological role of HigB/HigA in P. aeruginosa, a whole-transcriptome experiment was performed for the higA antitoxin deletion mutant of the PA14 strain compared to the wild-type PA14 strain. The rationale was that for the strain that lacks the antitoxin, the effect of the toxin could be discerned due to enhanced activity of the toxin. Furthermore, toxin HigB reduces production of the virulence factors pyochelin, pyocyanin, swarming, and biofilm formation.

2016-11-04 | GSE74730 | GEO

Transcriptomics of Pseudomonas aeruginosa PA14 upon deletion of the sigma factor RpoS

Project description:We report RNA-seq data of Pseudomonas aeruginosa PA14 (UCBPP-PA14) and an isogenic rpoS-STOP mutant generated using CRISPR/Cas9 base editing. Transcriptomic profiling during exponential growth in rich medium highlights the regulatory influence of RpoS. These data enable exploration of RpoS-dependent responses in the virulent PA14 strain.

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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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Transcriptome record of Pseudomonas aeruginosa PA14 cultivated in liquid minimal medium under influence of serine hydroxamate.

Project description:Transcriptomic analysis of Pseudomonas aeruginosa PA14 in liquid minimal medium with serine hydroxamate.

2024-12-06 | GSE283319 | GEO