Alpha Methyl Glucoside
Mostrando 1-12 de 59 artigos, teses e dissertações.
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1. Metabolismo de alpha-metil glicosídio em Saccharomyces cerevisiae / Alpha-methyl glucoside metabolism in saccharomyces cerevisiae
O transporte de α-metil glicosídio ( α-MG) em Saccharomyces cerevisiae foi recentemente reportado como transporte ativo, do tipo simporte de &$945;-MG com H+ mediado pela permease Agt1p. A cepa AP77-11B (cepa selecionada em nosso laboratório) 14C-α-MG pelo mecanismo descrito como difusão facilitada porque não existe co-transporte de H+ dur
Publicado em: 2007
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2. Regulation of carbohydrate transport activities in Salmonella typhimurium: use of the phosphoglycerate transport system to energize solute uptake.
The phosphoglycerate transport system was employed to supply energy-depleted, lysozyme-treated Salmonella typhimurium cells with a continuous intracellular source of phosphoenolpyruvate. When the cells had been induced to high levels of the phosphoglycerate transport system, a low extracellular concentration of phosphoenolpyruvate (0.1 mM) half maximally sti
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3. Inhibition of blood clearance and hepatic tissue binding of Escherichia coli by liver lectin-specific sugars and glycoproteins.
The effects of sugars and glycoproteins that are known to bind to lectins of liver tissue on the clearance of cells of Escherichia coli from mouse blood was investigated. The administration of 100 mg per mouse of methyl-alpha-D-mannoside, methyl-alpha-D-glucoside, or methyl-alpha-D-fucoside, but not of methyl-alpha-D-galactoside or L-rhamnose, markedly inhib
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4. The Fermentation of Alpha-Methyl-D-Glucoside by Members of the Coli-areogenes Group
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5. Phosphoenolpyruvate:glycose phosphotransferase system in species of Vibrio, a widely distributed marine bacterial genus.
The genus Vibrio is one of the most common and widely distributed groups of marine bacteria. Studies on the physiology of marine Vibrio species were initiated by examining 15 species for the bacterial phosphoenolpyruvate:glycose phosphotransferase system (PTS). All species tested contained a PTS analogous to the glucose-specific (IIGlc) system in enteric bac
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6. Mechanism of regulation of glucose transport in Rhizobium leguminosarum.
Multiple glucose transport systems were distinguished in Rhizobium leguminosarum. We found nonlinear Lineweaver-Burk plots for the uptake of glucose, 2-deoxy-D-glucose, and alpha-methyl-D-glucoside, and this implied the existence of at least two uptake mechanisms. Different patterns of inhibition of 2-deoxy-D-glucose uptake and alpha-methyl-D-glucoside uptak
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7. Isolation of dicarboxylic acid- and glucose-binding proteins from Pseudomonas aeruginosa.
Inducible binding proteins for C4-dicarboxylic acids (DBP) and glucose (GBP) were isolated from Pseudomonas aeruginosa by extraction of exponential-phase cells with 0.2 M MgC12 (pH 8.5) and by an osmotic shock procedure without affecting cell viability. DBP synthesis was induced by growth on aspartate, alpha-ketoglutarate, succinate, fumarate, malate, and ma
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8. A rabbit jejunal isolated enterocyte preparation suitable for transport studies.
A method is described for isolating viable enterocytes from rabbit jejunum. Estimates of sucrase and gamma-glutamyl transferase activities in cells isolated by this method suggest that they originate from the upper villus only. Isolated cells accumulate both alpha-methyl-D-glucoside and alanine, maintaining high intracellular concentrations for at least 60 a
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9. Interaction of a 60-kilodalton D-mannose-containing salivary glycoprotein with type 1 fimbriae of Escherichia coli.
A 60-kilodalton glycoprotein previously isolated and purified from human saliva (J. B. Babu, E. H. Beachey, D. L. Hasty, and W. A. Simpson, Infect. Immun. 51: 405-413, 1986) was found to interact with type 1 fimbriae and prevent adhesion of type 1 fimbriated Escherichia coli to animal cells in a D-mannose-sensitive manner. Purified salivary glycoprotein aggl
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10. II-BGlc, a glucose receptor of the bacterial phosphotransferase system: molecular cloning of ptsG and purification of the receptor from an overproducing strain of Escherichia coli.
The bacterial phosphoenolpyruvate:glycose phosphotransferase system (PTS) consists of interacting cytoplasmic and membrane proteins that catalyze the phosphorylation and translocation of sugar substrates across the cell membrane. One PTS protein, II-BGlc, is the membrane receptor specific for glucose and methyl D-glucopyranosides; the protein has been purifi
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11. Concanavalin A inhibits tissue factor coagulant activity.
Concanavalin A (con A) is a potent inhibitor of coagulant activity of native tissue factor. Coagulant activity is recovered by addition of alpha-methyl-D-glucoside to inhibited tissue factor. Inclusion of alpha-methyl-D-glucose during incubation of con A with tissue factor preserves coagulant activity. These data suggest that con A interacts reversibly with
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12. Reconstitution of regulatory properties of adenylate cyclase in Escherichia coli extracts.
The inhibition of adenylate cyclase activity of Escherichia coli by methyl alpha-glucoside has been demonstrated in intact or in permeable cells but not in cell-free extracts. In intact or permeable cells, this inhibition is demonstrable only in strains expressing the genes for proteins of the phosphoenolpyruvate:glycose phosphotransferase system (PTS); in p