Polyol dehydrogenase of the silkworm.

Pentose metabolism in Candida. 3. The triphosphopyridine nucleotide-specific polyol dehydrogenase of Candida utilis.

Pyridoxine as a nutrient supplement with mulberry leaf and its impact on succinate dehydrogenase activity and economic traits of the silkworm, Bombyx mori l

The silkworm, Bombyx mori L. is a monophagous insect and consumes only mulberry leaves during larval stage of its life cycle. The performance of silkworm such as growth, reproductive potentiality and quantum and quality of cocoon production depends on nutrient composition of food, which includes both absolute and relative amounts of proteins, amino acids, lipids, carbohydrates, sterols, water, ...

Polyol pathway in human epididymis and semen.

Two enzymes are involved in the polyol pathway: an aldose reductase that reduces glucose in sorbitol followed by its oxidation in fructose by sorbitol dehydrogenase. It has been previously shown that both enzymes are presented in the bovine epididymis, where they are associated with membranous vesicles called epididymosomes. Based on the distribution of these enzymes, it has been hypothesized t...

Enantioselective oxidation of galactitol 1-phosphate by galactitol-1-phosphate 5-dehydrogenase from Escherichia coli.

Galactitol-1-phosphate 5-dehydrogenase (GPDH) is a polyol dehydrogenase that belongs to the medium-chain dehydrogenase/reductase (MDR) superfamily. It catalyses the Zn(2+)- and NAD(+)-dependent stereoselective dehydrogenation of L-galactitol 1-phosphate to D-tagatose 6-phosphate. Here, three crystal structures of GPDH from Escherichia coli are reported: that of the open state of GPDH with Zn(2+...

Ultrasound Induced Enhancement of Protein Metabolism and Enzyme Activities in the Silk Gland of Fifth Instar Silkworm, Bombyx mori L

The parameters of protein metabolism, such as the levels of total, soluble proteins and free amino acids and also the activity levels of protease, glutamate dehydrogenase, aspartate aminotransferase and alanine aminotransferase were assayed in the silk gland of the fifth instar larva of silkworm, Bombyx mori, under the impact of ultrasound. In general ultrasound has an elevatory effect on these...