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Bacillus cereus proteomics under fermentative anoxic conditions, exoproteome

ABSTRACT: This project provides tandem mass spectrometry datasets of Bacillus cereus ATCC 14579 wild-type strain without its pBClin15 plasmid grown under fermentative anaerobic condition and harvested at three growth stages.

INSTRUMENT(S): LTQ Orbitrap XL

ORGANISM(S): Bacillus Cereus (strain Atcc 14579 / Dsm 31)

SUBMITTER: Jean ARMENGAUD

LAB HEAD: Jean Armengaud

PROVIDER: PXD024702 | Pride | 2021-09-10

REPOSITORIES: Pride

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Methionine Sulfoxide Reductases Contribute to Anaerobic Fermentative Metabolism in <i>Bacillus cereus</i>.

Duport Catherine C Madeira Jean-Paul JP Farjad Mahsa M Alpha-Bazin Béatrice B Armengaud Jean J

Antioxidants (Basel, Switzerland) 20210520 5

Reversible oxidation of methionine to methionine sulfoxide (Met(O)) is a common posttranslational modification occurring on proteins in all organisms under oxic conditions. Protein-bound Met(O) is reduced by methionine sulfoxide reductases, which thus play a significant antioxidant role. The facultative anaerobe <i>Bacillus cereus</i> produces two methionine sulfoxide reductases: MsrA and MsrAB. MsrAB has been shown to play a crucial physiological role under oxic conditions, but little is known ...[more]

PMID: 34065610

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Project description:This project provides tandem mass spectrometry datasets of Bacillus cereus ATCC 14579 wild-type strain without its pBClin15 plasmid and devoided of the methionine sulfoxide reductase A (msrA) gene. The single mutant strain was grown under fermentative anaerobic condition and harvested at three growth stages.

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Bacillus cereus msrA mutant strain proteomics under fermentative anoxic conditions, cellular proteome

Project description:This project provides tandem mass spectrometry datasets of Bacillus cereus ATCC 14579 wild-type strain without its pBClin15 plasmid devoided of the methionine sulfoxide reductase A (msrA) gene. The single mutant strain was grown under fermentative anaerobic condition and harvested at three growth stages.

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Project description:This project provides tandem mass spectrometry datasets of Bacillus cereus ATCC 14579 wild-type strain without its pBClin15 plasmid devoided of both the methionine sulfoxide reductase AB (msrAB)and the methionine sulfoxide reductase A (msrA) genes. The double mutant strain was grown under fermentative anaerobic condition and harvested at three growth stages.

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Bacillus cereus proteomics - Deciphering the interactions between the Bacillus cereus linear plasmid, pBClin15, and its host by high-throughput comparative proteomics

Project description:This project contributes to the proteomic comparison of Bacillus cereus ATCC 14579 wild-type strain and the derivative strain cured of the linear plasmid, B. cereus ATCC 14579 -pBClin15, grown in aerobiosis condition and harvested at three growth stages.

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Gene transcription from the linear plasmid pBClin15 leads to cell lysis and extracellular DNA dependent aggregation of B. cereus ATCC 14579 in response to quinolone induced stress

Project description:Several members of the Bacillus cereus group of bacteria carry lysogenic phages of the family Tectiviridae. The Bacilus cereus reference strain (ATCC 14579) harbor a linear plasmid (pBClin15) that is highly similar to the genomes of the Tectiviruses. Production of active phages has however never been reported for pBClin15 and the role of pBClin15 in B. cereus physiology has been enigmatic. We have for the first time demonstrated an effect of pBClin15 on the physiology of B. cereus ATCC 14579 whereby the wild type is more sensitive to DNA damaging antibiotics compared to a pBClin15 cured strain. The microarray experiments in this study were designed to highlight transcriptional differences between the B. cereus ATCC 14579 wild type and a plasmid cured variant that potentially could explain the impact of pBClin15 on the B. cereus physiology. Microarray experiments were carried out under non-stressful conditions (growth in logarithmic phase in LB medium) under which there were no phenotypic difference between the wild type and pBClin15 cured strain as well as under stressful conditions under which there were phenotypic differences between the two strain (growth in LB medium supplemented with 0.5M-5g norfloxacin per ml).

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