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Bacillus subtilis subsp. subtilis str. 168

ABSTRACT: Transcriptional profile of Bacillus subtilis sigF-mutant during vegetative growth and under sporulating conditions

PROVIDER: PRJNA272513 | ENA |

REPOSITORIES: ENA

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Bacillus subtilis WalR (YycF) ChIP-chip Bacillus subtilis; Bacillus subtilis subsp. subtilis str. 168

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Project description:To explore the effects of different stress conditions on Bacillus subtilis str.168, a selection of conditions were applied to the organism and RNA-seq data gathered. A matrix of gene counts was produced as a basis for further analysis into the transcription profiles of Bacillus subtilis str.168.

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Bacillus subtilis WalR (YycF) ChIP-chip Bacillus subtilis; Bacillus subtilis subsp. subtilis str. 168

Project description:Identification of the specific WalR (YycF) binding regions on the B. subtilis chromosome during exponential and phosphate starvation growth phases. The data serves to extend the WalRK regulon in Bacillus subtilis and its role in cell wall metabolism, as well as implying a role in several other cellular processes. For each sample analyzed in this study three biological replicates were performed. Three different samples were taken from a strain expressing the WalR-SPA protein as well as from wild-type (168) without a tagged WalR. Samples were taken from exponentially growing cells in low phosphate medium (LPDM) as well as from phosphate-limited cells (T2). Each sample compares ChIP DNA vs. Total DNA from the same cells.

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Project description:Bacillus subtilis’ sigma factor F is the first forespore specific transcription factor and controls genes required for the early stages of prespore development. The role of sigF is well studied under conditions that induce sporulation. Here, the impact of a sigF disruption on the transcriptome of exponentially growing cultures is studied by micro-array analysis. This is relevant because in various experiments, such as industrial fermentation, prolonged experimental evolution or zero-growth studies, sporulation is an undesirable trait that should be avoided, e.g by a sigF mutation. Under conditions that typically don’t induce sporulation, the transcriptome showed minor signs of sporulation initiation. The number of genes differentially expressed and the magnitude of expression were, as expected, quite small in comparison with sporulation conditions. The genes mildly down-regulated were mostly involved in anabolism and the genes mildly up-regulated were mostly involved in catabolism, in particular fatty acid degradation genes. Probably this is related to the arrest at sporulation stage II occurring in the sigF mutant where additional energy is required for further growth of the polar compartments formed.

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Bacillus subtilis subsp. subtilis str. 168

Project description:Expression data from Bacillus subtilis 168 during growth

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