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PrrA modulates Mycobacterium tuberculosis response to nitric oxide

ABSTRACT: PrrA modulates Mycobacterium tuberculosis response to nitric oxide

PROVIDER: PRJNA817811 | ENA |

REPOSITORIES: ENA

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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

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

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2017-08-29 | E-MTAB-5557 | biostudies-arrayexpress

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Project description:To study the entire transcriptional and translational M. tuberculosis response from initial survival to eventual escape from nitric oxide (NO) stress, we exposed exponentially growing M. tuberculosis to 1 mM diethylenetriamine/nitric oxide (DETA/NO) and followed the adaptive response over 48 hours. Samples were obtained from two independent experiments performed in triplicate and we sampled aliquots for transcriptome profiling by RNA sequencing at 20 min, 2 h and 24 h and for mass spectrometry-based shotgun proteomics at 20 min, 40 min, 1 h, 2 h, 4 h, 8 h, 12 h, 24 h and 48 h post NO exposure.

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Project description:We used microarray hybridization to analyze the expression pattern of M. bovis after exposure to nitric oxide. In M. tuberculosis, this treatment has been shown to induce a response similar to the hypoxic stress. Results showed the up-regulation of 51 genes belonging to the DosR regulon. The most remarkable difference with M. tuberculosis was the lack of expression of narX and narK2 in M. bovis, both genes related to survival during hypoxic stress. We further confirm this by qRT-PCR and also explore differential activity at promoter level.

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