Control of the Bacillus subtilis Antiterminator Protein GlcT by Phosphorylation
نویسندگان
چکیده
منابع مشابه
Regulation of the Bacillus subtilis GlcT antiterminator protein by components of the phosphotransferase system.
Bacillus subtilis utilizes glucose as the preferred source of carbon and energy. The sugar is transported into the cell by a specific permease of the phosphoenolpyruvate:sugar phosphotransferase system (PTS) encoded by the ptsGHI operon. Expression of this operon is induced by glucose and requires the action of a positive transcription factor, the GlcT antiterminator protein. Glucose availabili...
متن کاملMultiple phosphorylation of SacY, a Bacillus subtilis transcriptional antiterminator negatively controlled by the phosphotransferase system.
The Bacillus subtilis SacY transcriptional antiterminator is a regulator involved in sucrose-promoted induction of the sacB gene. SacY activity is negatively controlled by enzyme I and HPr, the general energy coupling proteins of the phosphoenolpyruvate:sugar phosphotransferase system (PTS), and by SacX, a membranal protein homologous to SacP, the B. subtilis sucrose-specific PTS-permease. Prev...
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15 صفحه اولSacY, a transcriptional antiterminator from Bacillus subtilis, is regulated by phosphorylation in vivo.
SacY antiterminates transcription of the sacB gene in Bacillus subtilis in response to the presence of sucrose in the growth medium. We have found that it can substitute for BglG, a homologous protein, in antiterminating transcription of the bgl operon in Escherichia coli. We therefore sought to determine whether, similarly to BglG, SacY is regulated by reversible phosphorylation in response to...
متن کاملRegulation of the glucose-specific phosphotransferase system (PTS) of Staphylococcus carnosus by the antiterminator protein GlcT.
The ptsG operon of Staphylococcus carnosus consists of two adjacent genes, glcA and glcB, encoding glucose- and glucoside-specific enzymes II, respectively, the sugar permeases of the phosphoenolpyruvate-dependent phosphotransferase system (PTS). The expression of the ptsG operon is glucose-inducible. Putative RAT (ribonucleic antiterminator) and terminator sequences localized in the promoter r...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 2003
ISSN: 0021-9258
DOI: 10.1074/jbc.m309972200