the identification of the efficiency of some mtdna genes of mus musculus species complex (house mouse) for biosystematics research was studied in this approach. recent studies have made use of different mitochondrial genes including nadh dehydrogenase genes, cytochrome b gene, cytochrome oxidase genes, d-loop region and whole mtdna genome to study the house mouse species. usage of each of these...

The influence of growth conditions on product formation from glucose by Lactococcus lactis strain NZ9800 engineered for NADH-oxidase overproduction was examined. In aerobic batch cultures, a large production of acetoin and diacetyl was found at acidic pH under pH-unregulated conditions. However, pyruvate flux was mainly driven towards lactate production when these cells were grown under strictl...

NADH oxidation in Escherichia coli cytoplasmic membrane vesicles enriched in anionic phospholipids by de novo synthesis of lipid in the vesicles from acyl-CoA esters and sn-glycerol 3-phosphate has been studied. NADH-oxidase but not NADH-dehydrogenase activity was found to decrease during synthesis and accumulation of phospholipid in the vesicles. Density gradient fractionation showed that NADH...

BACKGROUND We recently demonstrated that homocysteine (Hcys) increases superoxide (O2-) production via NADH/NADPH oxidase in renal mesangial cells. This O2- production contributes to increased expression of tissue inhibitor of metalloproteinase (TIMP-1) and consequent deposition of collagen in response to Hcys. However, the mechanism by which Hcys activates NADH/NADPH oxidase remains unknown. G...

Thermostable enzymes have applications in biosensors and bioreactors. Overexpression of thermostable enzyme-encoding genes from thermophiles Escherichia coli is necessary to produce sufficient quantities such enzymes. Deinococcus gerthermalis a moderately thermophilic bacterium has Nicotinamide adenine dinucleotide (NADH) an important coenzyme for various dehydrogenases. NADH oxidase (Nox) cata...

There is evidence for an unexpected role of diferric transferrin as a terminal oxidase for the transplasma membrane oxidation of cytosolic NADH. In the original studies which showed the reduction of iron in transferrin by the plasma membranes NADH oxidase, the possible role of the reduction on iron uptake was emphasized. The rapid reoxidation of transferrin iron under aerobic conditions preclud...

Respiratory metabolism plays an important role in energy production in the form of ATP in all aerobically growing cells. However, a limitation in respiratory capacity results in overflow metabolism, leading to the formation of byproducts, a phenomenon known as "overflow metabolism" or "the Crabtree effect." The yeast Saccharomyces cerevisiae has served as an important model organism for studyin...

The specific activities of isocitric dehydrogenase, alpha-ketoglutaric dehydrogenase, succinic dehydrogenase, malic dehydrogenase, and reduced nicotinamide adenine dinucleotide (NADH) oxidase were determined in extracts of Nitrosomonas europaea and compared with the corresponding values for Anacystis nidulans and autotrophically grown Hydrogenomonas eutropha. In common with other obligate autot...

The respiratory chain of the ethanologenic bacterium Zymomonas mobilis was investigated, in which the pyruvate-to-ethanol pathway has been demonstrated to be mainly responsible for NADH oxidation and the tricarboxylic acid cycle is incomplete. Membranes from cells cultivated under aerobic or anaerobic growth conditions showed dehydrogenase and oxidase activities for NADH, D-lactate and D-glucos...

Increasing experimental evidence suggests that non-phagocytic cells express a potent superoxide (O # −d)-producing NADH oxidase that might be related to the phagocytic NADPH oxidase. Here we show that the cytokine tumour necrosis factor α (TNFα) activates, in a timeand dose-dependent manner, a O # −dproducing NADH oxidase in cultured rat aortic smooth-muscle cells. Dose–response experiments for...