The b-Glucoside System of Escherichia coli
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چکیده
منابع مشابه
BglF, the Escherichia coli b-Glucoside Permease and Sensor of the bgl System: Domain Requirements of the Different Catalytic Activities
The Escherichia coli BglF protein, an enzyme II of the phosphoenolpyruvate-dependent carbohydrate phosphotransferase system, has several enzymatic activities. In the absence of b-glucosides, it phosphorylates BglG, a positive regulator of bgl operon transcription, thus inactivating BglG. In the presence of b-glucosides, it activates BglG by dephosphorylating it and, at the same time, transports...
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Two distinct mechanisms catalyzing glucoside uptake have been detected in E. coli K12. One of these has high stereospecificity for glucose and alkyl-aor alkyl-,3-glucosides,l and the second, for alkyl-jBand aryl-,3-glucosides.2' 3 Lin and his collaborators4 5 have concluded that aMG is not actively transported, but is trapped intracellularly as the result of a phosphorylation reaction catalyzed...
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Escherichia coli K12 is being used to study the potential for adaptive evolution that is present in the genome of a single organism. Wild-type E. coli K12 do not utilize any of the beta-glucoside sugars arbutin, salicin or cellobiose. It has been shown that mutations at three cryptic loci allow utilization of these sugars. Mutations in the bgl operon allow inducible growth on arbutin and salici...
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In the current study, in order to verify the presence of bacterial Molybdenum cofactor, an indirect approach was made by showing the activity of BisC enzyme as a reporter gene. The activity of the BisC enzyme is dependent to Bis-MGD cofactor. BisC enzyme converts biotin sulfoxide to biotin under abiotic stress condition and it can also reduce TMANO and because of this property it was applied on...
متن کاملsystem of Escherichia coli
Dzwokai Wla,̂ '̂ David N. Cook,^ Wlarie Albert!,^ NingG. Pon,^ Hiroshi Nikaido'̂ '* and John E. 'Department of Chemistry, University of Gatlfornia, Berkeley, California 94720. USA. ^Division of Structural Biology. Lawrence Berkeley Laboratory, Berkeley. California 94720. USA. '^Sferitech inc., 2525 Stanwell Drive, Suite 300, Concord, California 94520, USA. '^Department of Molecular and Cell Biolog...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1974
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(20)79768-1