Title : Aldose reductase does catalyse the reduction of glyceraldehyde through a stoichiometric oxidation of NADPH.

Pub. Date : 2000 Nov

PMID : 11040087






11 Functional Relationships(s)
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1 In order to define the ability of bovine lens aldose reductase (ALR2) to generate polyols from aldoses, the quantitative determination of glycerol in the presence of glyceraldehyde was performed by gas chromatography after derivatization with trifluoroacetic anhydride. Glycerol lens aldose reductase pseudogene Bos taurus
2 In order to define the ability of bovine lens aldose reductase (ALR2) to generate polyols from aldoses, the quantitative determination of glycerol in the presence of glyceraldehyde was performed by gas chromatography after derivatization with trifluoroacetic anhydride. Glyceraldehyde lens aldose reductase pseudogene Bos taurus
3 In order to define the ability of bovine lens aldose reductase (ALR2) to generate polyols from aldoses, the quantitative determination of glycerol in the presence of glyceraldehyde was performed by gas chromatography after derivatization with trifluoroacetic anhydride. trifluoroacetic anhydride lens aldose reductase pseudogene Bos taurus
4 The generation of one equivalent of glycerol in the presence of ALR2, is paralleled by the oxidation of one equivalent of NADPH. Glycerol lens aldose reductase pseudogene Bos taurus
5 The generation of one equivalent of glycerol in the presence of ALR2, is paralleled by the oxidation of one equivalent of NADPH. NADP lens aldose reductase pseudogene Bos taurus
6 A similar result was obtained when S-glutathionyl-modified ALR2 was used, instead of the native enzyme, as a catalyst of glyceraldehyde reduction. s-glutathionyl lens aldose reductase pseudogene Bos taurus
7 Sorbinil, a classical ALR2 inhibitor, present in the enzyme assay mixture, inhibits to the same extent both NADPH oxidation and glycerol formation. sorbinil lens aldose reductase pseudogene Bos taurus
8 The demonstration of the stoichiometric ratio of 1:1 occurring in the presence of bovine lens ALR2 between the synthesis of glycerol from D, L -glyceraldehyde and the oxidation of NADPH, rules out doubts concerning the ability of the enzyme to catalyse the reduction of aldoses to the corresponding polyalcohols. Glycerol lens aldose reductase pseudogene Bos taurus
9 The demonstration of the stoichiometric ratio of 1:1 occurring in the presence of bovine lens ALR2 between the synthesis of glycerol from D, L -glyceraldehyde and the oxidation of NADPH, rules out doubts concerning the ability of the enzyme to catalyse the reduction of aldoses to the corresponding polyalcohols. d, l -glyceraldehyde lens aldose reductase pseudogene Bos taurus
10 The demonstration of the stoichiometric ratio of 1:1 occurring in the presence of bovine lens ALR2 between the synthesis of glycerol from D, L -glyceraldehyde and the oxidation of NADPH, rules out doubts concerning the ability of the enzyme to catalyse the reduction of aldoses to the corresponding polyalcohols. polyalcohols lens aldose reductase pseudogene Bos taurus
11 This would indicate that the spectrophotometric monitoring of NADPH oxidation at 340 nm, in the presence of ALR2, is a reliable method to assay the enzyme activity. NADP lens aldose reductase pseudogene Bos taurus