The catabolite repressor/activator (Cra) protein of enteric bacteria
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چکیده
منابع مشابه
The catabolite repressor/activator (Cra) protein of enteric bacteria.
Bacteria are frequently faced with metabolic questions which, if answered appropriately, can enhance their reproductive and survival capabilities. They must decide how much of a specific nutrient they will take up and metabolize, which of the various equivalent nutrients that may be available they will select, and how they will respond to changes in relative nutrient concentrations as a functio...
متن کاملRegulation of expression of the ethanol dehydrogenase gene (adhE) in Escherichia coli by catabolite repressor activator protein Cra.
The adhE gene encodes ethanol dehydrogenase and is located at min 27.9 of the Escherichia coli chromosome. Expression of adhE is about 10-fold higher in cells grown anaerobically than in cells grown aerobically and is dependent on both transcriptional and posttranscriptional factors. In this study, a trans-regulatory element repressing adhE expression was characterized by genetic and biochemica...
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Biochemical confirmation of salmonellae by conventional tube methods usually requires 2 to 3 days of incubation time preceded by preparation of tubed media and transfer of cultures. The principles of heavy inocula and increased substrate concentrations have been used by Sanders et al. (1) to speed up reaction times and thus reduce the time necessary in the laboratory for analysis. To characteri...
متن کاملGlycogen of enteric bacteria.
In the course of an investigation of the use of infrared spectrophotometry for bacterial identification (Stevenson and Bolduan, 1952; Levine et al., 1953b), it has been found that a characteristic set of absorption bands appears in the spectra of Enterobacteriaceae and other bacteria under certain cultural conditions. Since this set of bands is common to many organisms, it is important in ident...
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...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1996
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.178.12.3411-3417.1996