Results 211 to 220 of about 277,879 (245)
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Genetic control of hydrogen metabolism in cyanobacteria
Russian Journal of Genetics, 2006The development of methods for the use of phototrophic cyanobacteria as producers of molecular hydrogen via bioconversion of solar energy is a promising filed of hydrogen energetics. Artificial optimization of hydrogen formation and release is based on studying the genetic control of hydrogen metabolism and the use of genetic approaches for obtaining ...
S V, Shestakov, L E, Mikheeva
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Hydrogen metabolism in blue-green algae
Biochimie, 1978This manuscript reviews the literature on hydrogen metabolism in blue-green algae and reports some new data from this laboratory. H2-formation by intact cells is found to be catalyzed exclusively by nitrogenase. Its rate appears to be variable from strain to strain used byt is--in our hands--very small.
H, Bothe, E, Distler, G, Eisbrenner
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Hydrogen peroxide metabolism in Trypanosoma brucei
Molecular and Biochemical Parasitology, 1986Contrary to previous reports in the literature, bloodstream forms of the haemoflagellate protozoan Trypanosoma brucei brucei are not deficient in their ability to metabolize hydrogen peroxide, although they either lack or only possess the normal enzymes for H2O2 detoxification, catalase (EC 1.11.1.6) and glutathione peroxidase (EC 1.11.1.9), at ...
P G, Penketh, R A, Klein
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The Metabolic Fate of Mitochondrial Hydrogen Peroxide
European Journal of Biochemistry, 1980Mitochondrial H2O2formation is not in equilibrium with defence mechanisms that counteract an accumulation of H2, in rat‐heart cell.A model for the accumulation kinetics is proposed which is consistent with the data presented.Four different pathways of H2O2metabolism are described in rat‐heart mitochondria.
H, Nohl, W, Jordan
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Carbon dioxide metabolism in hydrogen-adapted Scenedesmus
Archives of Biochemistry and Biophysics, 1963Abstract 1. 1. Photoreduction of C14O2 by adapted Scenedesmus gives the same carbon fixation pattern as photosynthesis. 2. 2. Photoreduction is susceptible to progressive inhibition by increasing oxygen tension. The inhibition is parallel. Hydrogenase activity is inhibited in a parallel manner by oxygen tension as measured by tritium exchange.
G, GINGRAS, R A, COLDSBY, M, CALVIN
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Hydrogen Sulfide Metabolism and Signaling in the Tumor Microenvironment
2020Hydrogen sulfide (H2S), while historically perceived merely as a toxicant, has progressively emerged as a key regulator of numerous processes in mammalian physiology, exerting its signaling function essentially through interaction with and/or modification of proteins, targeting mainly cysteine residues and metal centers. As a gaseous signaling molecule
Giuffre A. +4 more
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Hydrogenases and Hydrogen Metabolism in Photosynthetic Prokaryotes
2010Hydrogen plays important, different roles in a variety of photosynthetic prokaryotes. The variety of different hydrogenases, their catalytic sites, maturation, and genetic organization are reviewed in the context of what is known about these enzymes from model non-photosynthetic organisms.
Christoph, Schwarz +3 more
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Metabolism of ethanol hydrogen in mammals
Trends in Biochemical Sciences, 1977Abstract When alcohol is metabolised radical changes take place in the metabolic pattern of the liver. The use ofethanol suitably labeled with hydrogen isotopes has helped in understanding these processes.
F. Lundquist +3 more
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Metabolic reprogramming by hydrogen sulfide
Free Radical Biology and Medicine, 2018Toxic at high levels, hydrogen sulfide (H2S) modulates a range of physiological processes. Enzymes that synthesize H2S are remarkably promiscuous and allosteric regulation controls their reaction specificity. Sulfide is cleared via a mitochondrial oxidation pathway, which generates reactive sulfur intermediates, and couples to the electron transfer ...
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