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Streptococcus mutans Dextransucrase: A Review
1978Publisher Summary Two factors contribute to the cariogenic potential of Streptococcus mutans ( S. mutuns). These factors include its ability to produce high yields of lactic acid from a variety of carbon sources and its ability to adhere to hard surfaces by the action of its extracellular polysaccharides. S.
T J, Montville +2 more
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Regulation of Dextransucrase Formation by Streptococcus sanguis
Caries Research, 2009The dextransucrase formation by Streptococcus sanguis, strain 804, was studied under standardized and reproducible conditions in continuous culture. At state growth in complex medium the enzyme activity was high at low dilution rates and decreased when the dilution rate increased. At steady-state growth in chemically defined medium, the enzyme activity
J, Carlsson, B, Elander
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Dextransucrase: Studies on donor substrate specificity
Archives of Biochemistry and Biophysics, 1981Abstract Previous studies (D. S. Genghoff and E. J. Hehre, Proc. Soc. Exp. Biol. Med., 1972, 140, 1298–1301) have shown that an α-linked fluorine atom at C-1 of glucose provided sufficient activation to permit this analog to be a donor substrate for dextransucrase. In order to study the specificity at the donor substrate binding site, a series of α-1-
T J, Grier, R M, Mayer
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High pressure enzyme kinetics of dextransucrase
Biophysical Chemistry, 1976The pressure dependence of enzymatic dextran formation has been observed up to 1000 at for several substrate concentrations. First order denaturation effects could be separated from the thermodynamic effects, which lead to a volume of 30.4 to 44.0 ccm per mole for the formation and -13.6ccm per mole for the activation of the enzyme-substrate complex ...
K O, Greulich, H, Ludwig
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TEMPERATURE-SENSITIVE DEXTRANSUCRASE SYNTHESIS BY A LACTOBACILLUS
Journal of Bacteriology, 1963Dunican , L. K. (Cornell University, Ithaca, New York), and H. W. Seeley, Jr. Temperature-sensitive dextransucrase synthesis by a lactobacillus. J. Bacteriol. 86: 1079–1083.
L K, DUNICAN, H W, SEELEY
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Immobilization of dextransucrase on functionalized TiO2 supports
International Journal of Biological Macromolecules, 2018The TiO2 based hybrid supports with different functional groups (amino, glutaraldehyde or epoxy) were prepared and their influence on immobilization of dextransucrase (DS) was studied. Novel synthetic route for surface modification of TiO2 with amino and glutaraldehyde groups was developed taking advantage of charge transfer complex (CTC) formation ...
Miljković, Miona G. +8 more
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Inhibition of Dextransucrase by Excess Substrate
Nature, 1958HEHRE1, working with the enzyme dextransucrase, showed that a plot of initial velocity v against substrate concentration deviated from linearity above a sucrose concentration of 200 mM. This was tentatively explained on the basis of a decrease in concentration of water in the stronger sucrose solutions.
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The structure of a novel inhibitor of dextransucrase
Tetrahedron Letters, 1981Abstract The structure of ribocitrin ( I ), a novel dextransucrase inhibitor produced by a Streptomyces was elucidated to be 2-(S)-[O-α(-D-ribofuranosyl-(l→2)- O-α-D-ribofuranosyl- (1→3)-α-D-ribofuranosyloxyl -1,2,4-butanetricarboxylic acid.
Takashi Ohnuki +3 more
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