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NdpA2 & TprA regulon in PA14: ICE PAPI-1 transference induced (M0) vs Control (Tn38)

ABSTRACT: Transcriptional profiling of Pseudomonas aeruginosa PA14 comparing T4SS-GI induced biosynthesis M0 strain with control wild type phentoype Tn38 strain The PA14_59050-59120 locus was overexpressed through chromosomal insertion of ptac promoter within PA14_59030 gene.

ORGANISM(S): Pseudomonas aeruginosa

PROVIDER: GSE152141 | GEO | 2021/01/31

REPOSITORIES: GEO

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NdpA2 & TprA regulon in PA14: ICE PAPI-1 transference induced (M0) vs PAPI-1 transference inactivated (M0-59060-stop)

Project description:Transcriptional profiling of Pseudomonas aeruginosa PA14 comparing T4SS-GI induced biosynthesis M0 strain with control T4SS-GI induced biosynthesis M0-59060-stop strain. The PA14_59050-59120 locus was overexpressed through chromosomal insertion of ptac promoter within PA14_59030 gene.

2021-01-31 | GSE152140 | GEO

NdpA2 & TprA regulon in PA14: ICE PAPI-1 transference induced (M0) vs PAPI-1 transference inactivated (M0-59060-stop)

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| PRJNA638396 | ENA

NdpA2 & TprA regulon in PA14: ICE PAPI-1 transference induced (M0) vs Control (Tn38)

Project description:NdpA2 & TprA regulon in PA14: ICE PAPI-1 transference induced (M0) vs Control (Tn38)

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P. aeruginosa PA14 mutant PA4496 biofilm vs wild-type biofilm

Project description:P. aeruginosa PA14 mutant strain PA4496 expression in biofilm cells relative to PA14 wild-type strain expression in biofilm cells. All samples cultured in LB with glass wool

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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.

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C. elegans gene expression in response to the pathogenic P. aeruginosa strain PA14.

Project description:Analysis of differential gene expression in C. elegans adults exposed to three different bacteria: E. coli strain OP50, wild-type P. aeruginosa PA14 and gacA mutant PA14. Samples were analyzed at 4 hours and 8 hours after exposure to the different bacteria. These studies identified C. elegans genes induced by pathogen infection. Keywords: Time course, response to pathogen infection

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Transcription profiling of human AML FAB-M0 samples

Project description:Ficolled AML-M0 sample gene expression profiles on Affymetrix HGU133Plus2.0 GeneChips. Acute myeloid leukemia (AML) classified as FAB-M0 is defined as a subtype with minimally differentiated morphology. Here we investigated by gene expression (GEP) profiling whether AML-M0 cases should be considered as one or more unique molecular subgroups that discriminates them from other AML patients. By applying GEP and subsequent unsupervised analysis of 35 AML-M0 samples and 253 previously reported AML cases, we demonstrate that AML-M0 cases express a unique signature. Hematological transcription regulators such as CEBPA, CEBPD, PU.1 and ETV6 and the differentiation associated gene MPO appeared strongly down-regulated, in line with the very primitive state of this type of leukemia. Moreover, AML M0 cases appeared to have a strong positive correlation with a previously defined immature AML subgroup with adverse prognosis. AML-M0 leukemias frequently carry loss-of-function RUNX-1 mutation and unsupervised analyses revealed a striking distinction between cases with and without mutations. RUNX1 mutant AML-M0 samples showed a distinct up-regulation of B-cell-related genes, e.g. members of the B-cell receptor complex, transcriptions regulators RUNX3, ETS2, IRF8 or PRDM1 and major histocompatibility complex class II genes. Importantly, expression of one single gene, i.e. BLNK, enabled prediction of RUNX1 mutations in AML-M0 with high accuracy. We propose that RUNX1 mutations in this subgroup of AML cause lineage infidelity, leading to aberrant co-expression of myeloid and B-lymphoid genes in the same cells. Experiment Overall Design: 35 samples

2009-07-18 | E-GEOD-17061 | biostudies-arrayexpress

Gene expression profiling of 35 AML FAB-M0 samples

2009-07-14 | GSE17061 | GEO

Differential gene expression of Pseudomonas aeruginosa ΔPA14_22470 (ΔPA3225) versus UCBPP-PA14 wildtype in planktonic and biofilm cells

Project description:PA3225 is a LysR-type transcriptional regulator, and the ΔPA3225 deletion mutant is more resistant to various antibiotics than the wild-type PA14 strain in both planktonic and biofilm cells. In order to characterise the regulon of PA3225, we compared the transcriptomes of biofilm and planktonic ΔPA3225 to biofilm and planktonic PA14 wild-type by RNA-seq.

2017-06-08 | GSE87213 | GEO

Whole-genome microarray of Caenorhabditis elegans strains DA650 and RC301 exposed to Pseudomonas aeruginosa PA14

Project description:To gain insights into the mechanisms by which RC301 compensates for the deficiency in the NPR-1 controlled immune and behavioral responses of strain DA650, we determine the whole-genome expression profile of these two strains upon exposure to Pseudomonas aeruginosa strain PA14

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