Transcription in the acetoin catabolic pathway is regulated by AcoR and CcpA in Bacillus thuringiensis
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چکیده
منابع مشابه
Regulation of the acetoin catabolic pathway is controlled by sigma L in Bacillus subtilis.
Bacillus subtilis grown in media containing amino acids or glucose secretes acetate, pyruvate, and large quantities of acetoin into the growth medium. Acetoin can be reused by the bacteria during stationary phase when other carbon sources have been depleted. The acoABCL operon encodes the E1alpha, E1beta, E2, and E3 subunits of the acetoin dehydrogenase complex in B. subtilis. Expression of thi...
متن کاملBiochemical and molecular characterization of the Bacillus subtilis acetoin catabolic pathway.
A recent study indicated that Bacillus subtilis catabolizes acetoin by enzymes encoded by the acu gene cluster (F. J. Grundy, D. A. Waters, T. Y. Takova, and T. M. Henkin, Mol. Microbiol. 10:259-271, 1993) that are completely different from those in the multicomponent acetoin dehydrogenase enzyme system (AoDH ES) encoded by aco gene clusters found before in all other bacteria capable of utilizi...
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How pathogenic bacteria infect and kill their host is currently widely investigated. In comparison, the fate of pathogens after the death of their host receives less attention. We studied Bacillus thuringiensis (Bt) infection of an insect host, and show that NprR, a quorum sensor, is active after death of the insect and allows Bt to survive in the cadavers as vegetative cells. Transcriptomic an...
متن کاملCatabolite regulation of Bacillus subtilis acetate and acetoin utilization genes by CcpA.
The Bacillus subtilis acsA (acetyl coenzyme A synthetase) and acuABC (acetoin utilization) genes were previously identified in the region downstream from the ccpA gene, which encodes a protein required for catabolite repression of the amyE (alpha-amylase) gene. The acsA and acuABC genes are divergently transcribed, with only 20 bp separating the -35 sequences of their promoters. Expression of t...
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ژورنال
عنوان ژورنال: Microbiological Research
سال: 2020
ISSN: 0944-5013
DOI: 10.1016/j.micres.2020.126438