نتایج جستجو برای: phosphate dehydrogenase
تعداد نتایج: 163271 فیلتر نتایج به سال:
It has been reported that glycolysis in mouse brain homogenates is inhibited by ferrous sulfate (1). It was shown that the inhibition is due to an iron-activated factor (IF) in brain and is localized at the stage of triose phosphate oxidation. Later, it was found that glyceraldehyde-3-phosphate dehydrogenase, the triose phosphate-oxidizing enzyme, could be protected by the addition of small amo...
Cell-free extracts of 17 strains of Bifidobacterium bifidum (Lactobacillus bifidus) were examined for the presence of aldolase, glucose-6-phosphate dehydrogenase, and fructose-6-phosphate phosphoketolase. All strains turned out to lack aldolase, an enzyme unique to glycolysis, and glucose-6-phosphate dehydrogenase, characteristic of the hexosemonophosphate pathway. In all strains, fructose-6-ph...
A triose phosphate/3-phosphoglycerate shuttle for the indirect transfer of photosynthetically reduced NADP from chloroplasts to the cytoplasm has been demonstrated in vitro. Triose phosphate, formed from 3-phosphoglycerate in the chloroplast, was oxidized back to 3-phosphoglycerate outside the chloroplast by the nonreversible d-glyceraldehyde 3-phosphate dehydrogenase reaction which is specific...
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most common human enzyme defect, being present in more than 400 million people worldwide. The global distribution of this disorder is remarkably similar to that of malaria, lending support to the so-called malaria protection hypothesis. G6PD deficiency is an X-linked, hereditary genetic defect due to mutations in the G6PD gene, which ca...
In 1928 Miiller (1) reported the presence of a new enzyme, a glucose oxidase, in press-juice of Aspergillus niger. He subsequently suggested that it might be a dehydrogenase (2) ; he later showed that it catalyzed the oxidation of glucose to gluconic acid (3). Harrison in 1931 obtained glucose dehydrogenase from acetone-dried mammalian liver by saturating a water extract with ammonium sulfate (...
1. Two different gels have been prepared suitable for the separation of a number of enzymes, in particular NAD+-dependent dehydrogenases, by affinity chromatography. For both the matrix used was Sepharose 4B. For preparation (a), NAD+-Sepharose, 6-aminohexanoic acid has been coupled to the gel by the cyanogen bromide method and then NADI was attached by using dicyclohexylcarbodi-imide; for prep...
Glucose-6-phosphate dehydrogenase (G6PD) is expressed in all tissues, where it catalyses the first step in the pentose phosphate pathway. G6PD deficiency is prevalent throughout tropical and subtropical regions of the world because of the protection it affords during malaria infection. Although most affected individuals are asymptomatic, there is a risk of neonatal jaundice and acute haemolytic...
OBJECTIVE Increased glucose 6-phosphate dehydrogenase activity has been demonstrated in heart failure. This study sought to assess myocardial glucose 6-phosphate dehydrogenase activity in retraining of the subpulmonary ventricle of adult goats. METHODS Eighteen adult goats were divided into three groups: traditional (fixed banding), sham, and intermittent (adjustable banding, daily 12-hour sy...
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