Catabolite repression of the citST two-component system in Bacillus subtilis
نویسندگان
چکیده
منابع مشابه
CcpA-independent carbon catabolite repression in Bacillus subtilis.
The past decade has witnessed an exiting unveiling of numerous molecular mechanisms that characterize signal transduction by protein-protein interaction. The recent findings encouraged an increasing effort to understand the sequential metabolism of different sugars available as energy sources at the same time. It seems probable that at least three principle mechanisms which act together or sepa...
متن کاملTwo different mechanisms mediate catabolite repression of the Bacillus subtilis levanase operon.
There are two levels of control of the expression of the levanase operon in Bacillus subtilis: induction by fructose, which involves a positive regulator, LevR, and the fructose phosphotransferase system encoded by this operon (lev-PTS), and a global regulation, catabolite repression. The LevR activator interacts with its target, the upstream activating sequence (UAS), to stimulate the transcri...
متن کاملCarbon catabolite repression in Bacillus subtilis: quantitative analysis of repression exerted by different carbon sources.
In many bacteria glucose is the preferred carbon source and represses the utilization of secondary substrates. In Bacillus subtilis, this carbon catabolite repression (CCR) is achieved by the global transcription regulator CcpA, whose activity is triggered by the availability of its phosphorylated cofactors, HPr(Ser46-P) and Crh(Ser46-P). Phosphorylation of these proteins is catalyzed by the me...
متن کاملDetermination of the cis sequence involved in catabolite repression of the Bacillus subtilis gnt operon; implication of a consensus sequence in catabolite repression in the genus Bacillus.
The mechanism underlying catabolite repression in Bacillus species remains unsolved. The gluconate (gnt) operon of Bacillus subtilis is one of the catabolic operons which is under catabolite repression. To identify the cis sequence involved in catabolite repression of the gnt operon, we performed deletion analysis of a DNA fragment carrying the gnt promoter and the gntR gene, which had been clo...
متن کاملRegulation of aconitase synthesis in Bacillus subtilis: induction, feedback repression, and catabolite repression.
The synthesis of aconitase in Bacillus subtilis wild-type and different citric acid cycle mutants has been studied and the influence of various growth conditions examined. Aconitase is induced by citrate and precursors of citrate and repressed by glutamate. Induction and repression counteract each other, and at equimolar concentrations of citrate and glutamate, aconitase synthesis is unaffected...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 2006
ISSN: 0378-1097,1574-6968
DOI: 10.1111/j.1574-6968.2006.00318.x