منابع مشابه
Yeast carbon catabolite repression.
Glucose and related sugars repress the transcription of genes encoding enzymes required for the utilization of alternative carbon sources; some of these genes are also repressed by other sugars such as galactose, and the process is known as catabolite repression. The different sugars produce signals which modify the conformation of certain proteins that, in turn, directly or through a regulator...
متن کاملCarbon catabolite repression in yeast.
Control of gene expression is a basic regulatory mechanism of living organisms. In microorganisms, glucose or other rapidly metabolizable carbon sources repress the expression of genes that code for enzymes related to the metabolism of other carbon sources. This phenomenon, known as catabolite repression, allows microorganisms to cope effectively with changes in the carbon sources present in th...
متن کاملCarbon Catabolite Repression Regulates Glyoxylate Gene Expression
We have previously proposed that metabolic status is important in the regulation of cucumber malate synthase (MS) and isocitrate lyase (ICL) gene expression during plant development. In this article, we used a cell culture system to demonstrate that intracellular metabolic status does influence expression of both of these genes. Starvation of cucumber cell cultures resulted in the coordinate in...
متن کاملCcpA-dependent carbon catabolite repression in bacteria.
Carbon catabolite repression (CCR) by transcriptional regulators follows different mechanisms in gram-positive and gram-negative bacteria. In gram-positive bacteria, CcpA-dependent CCR is mediated by phosphorylation of the phosphoenolpyruvate:sugar phosphotransferase system intermediate HPr at a serine residue at the expense of ATP. The reaction is catalyzed by HPr kinase, which is activated by...
متن کاملCarbon catabolite repression in Thermoanaerobacterium saccharolyticum
UNLABELLED BACKGROUND The thermophilic anaerobe Thermoanaerobacterium saccharolyticum is capable of directly fermenting xylan and the biomass-derived sugars glucose, cellobiose, xylose, mannose, galactose and arabinose. It has been metabolically engineered and developed as a biocatalyst for the production of ethanol. RESULTS We report the initial characterization of the carbon catabolite r...
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ژورنال
عنوان ژورنال: Microbiology and Molecular Biology Reviews
سال: 1998
ISSN: 1092-2172,1098-5557
DOI: 10.1128/mmbr.62.2.334-361.1998