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PrrA modulation of Mycobacterium tuberculosis response to acidic pH and high chloride levels is critically regulated by serine/threonine protein kinases

ABSTRACT: PrrA modulation of Mycobacterium tuberculosis response to acidic pH and high chloride levels is critically regulated by serine/threonine protein kinases

PROVIDER: PRJNA817807 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18363035.fastq.gz	Fastqsanger.gz
	SRR18363036.fastq.gz	Fastqsanger.gz
	SRR18363037.fastq.gz	Fastqsanger.gz
	SRR18363038.fastq.gz	Fastqsanger.gz
	SRR18363039.fastq.gz	Fastqsanger.gz

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PrrA modulation of Mycobacterium tuberculosis response to acidic pH and high chloride levels is critically regulated by serine/threonine protein kinases

Project description:The purpose of this study was to understand how prevention of serine/threonine protein kinase (STPK) phosphorylation of PrrA impacts PrrA modulation of M. tuberculosis transcriptional response to acidic pH and high chloride levels.

2022-06-23 | GSE199000 | GEO

PrrA modulation of Mycobacterium tuberculosis response to nitric oxide is critically regulated by serine/threonine protein kinases

2022-06-23 | GSE198999 | GEO

PrrA modulation of Mycobacterium tuberculosis response to nitric oxide is critically regulated by serine/threonine protein kinases

Project description:PrrA modulation of Mycobacterium tuberculosis response to nitric oxide is critically regulated by serine/threonine protein kinases

| PRJNA817808 | ENA

PrrA modulates Mycobacterium tuberculosis response to acidic pH and high chloride levels

Project description:The purpose of this study was to identify genes that are differentially expressed upon prrA overexpression, to reveal the impact of PrrA on global transcription in acidic pH and/or high chloride conditions.

2022-06-23 | GSE198998 | GEO

PrrA modulates Mycobacterium tuberculosis response to acidic pH and high chloride levels

Project description:PrrA modulates Mycobacterium tuberculosis response to acidic pH and high chloride levels

| PRJNA817809 | ENA

Mycobacterium tuberculosis Serine/Threonine Protein Kinases.

Project description:The Mycobacterium tuberculosis genome encodes 11 serine/threonine protein kinases (STPKs). A similar number of two-component systems are also present, indicating that these two signal transduction mechanisms are both important in the adaptation of this bacterial pathogen to its environment. The M. tuberculosis phosphoproteome includes hundreds of Ser- and Thr-phosphorylated proteins that participate in all aspects of M. tuberculosis biology, supporting a critical role for the STPKs in regulating M. tuberculosis physiology. Nine of the STPKs are receptor type kinases, with an extracytoplasmic sensor domain and an intracellular kinase domain, indicating that these kinases transduce external signals. Two other STPKs are cytoplasmic and have regulatory domains that sense changes within the cell. Structural analysis of some of the STPKs has led to advances in our understanding of the mechanisms by which these STPKs are activated and regulated. Functional analysis has provided insights into the effects of phosphorylation on the activity of several proteins, but for most phosphoproteins the role of phosphorylation in regulating function is unknown. Major future challenges include characterizing the functional effects of phosphorylation for this large number of phosphoproteins, identifying the cognate STPKs for these phosphoproteins, and determining the signals that the STPKs sense. Ultimately, combining these STPK-regulated processes into larger, integrated regulatory networks will provide deeper insight into M. tuberculosis adaptive mechanisms that contribute to tuberculosis pathogenesis. Finally, the STPKs offer attractive targets for inhibitor development that may lead to new therapies for drug-susceptible and drug-resistant tuberculosis.

| S-EPMC4242435 | biostudies-literature

prrA mutant RNA-seq

Project description:prrA mutant RNA-seq

| PRJNA742264 | ENA

Role of the global transcriptional regulator PrrA in R. sphaeroides 2.4.1

Project description:We performed microarray analyses to investigate the extent of genes regulated by the Prr system. We compared the transcriptome and proteome profiles of the wild type (WT) and mutant PrrA2 cells grown anaerobically, in the dark, with DMSO as electron acceptor. Approximately 25% of the genes present in the genome are PrrA-regulated, at the transcriptional level, either directly or indirectly, by ≥ 2-fold relative to wild type. The genes affected are widespread throughout all COG functional categories, with previously unsuspected “metabolic” genes affected when in the PrrA mutant background. PrrA was found to act both as an activator and a repressor of transcription, with more genes being repressed in the presence of PrrA (9:5 ratio). An analysis of the genes encoding the 1,536 peptides detected through our chromatographic study, which corresponds to 36% coverage of the genome, revealed that approximately 20% of the genes encoding these proteins were positively regulated, whereas approximately 32% were negatively regulated by PrrA, which is in excellent agreement with the percentages obtained for the whole genomic transcriptome profile. In addition, comparison of the transcriptome and proteome mean parameter values chosen between WT and PrrA2 showed good qualitative agreement, indicating that transcript regulation paralleled the corresponding protein abundance. The microarray analysis was validated by direct mRNA measurement of randomly selected, both positively and negatively regulated genes. lacZ transcriptional and kan translational fusions enabled us to map putative PrrA binding sites, as well as revealing gene targets for indirect regulation by PrrA.

2010-02-19 | GSE20337 | GEO

prrA mutant RNA-seq

Project description:We performed transcriptomic analysis of prrA antitoxin mutant and WT strain of the clinical isolate 39016 of Pseudomonas aeruginosa. The purpose: understanding the gene expression pattern in the mutant with and without prophage induction- in compaarison to the WT strain with and without induction.

2022-05-01 | GSE179116 | GEO

PrrA modulates Mycobacterium tuberculosis response to nitric oxide

Project description:The purpose of this study was to understand the impact of prrA overexpression on global M. tuberculosis transcriptional response to nitric oxide.

2022-06-23 | GSE198997 | GEO

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