Superoxide Dismutase AN ENZYMIC FUNCTION FOR ERYTHROCUPREIN (HEMOCUPREIN)
Joe M. McCord,Irwin Fridovich +1 more
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The demonstration that O2·- can reduce ferricytochrome c and tetranitromethane, and that superoxide dismutase, by competing for the superoxide radicals, can markedly inhibit these reactions, is demonstrated.About:
This article is published in Journal of Biological Chemistry.The article was published on 1969-11-25 and is currently open access. It has received 12468 citations till now. The article focuses on the topics: Copper chaperone for superoxide dismutase & Superoxide reductase.read more
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Antioxidative enzymes in cultivars of pepper plants with different sensitivity to cadmium
Ana M. León,José M. Palma,Francisco J. Corpas,Manuel Gómez,María C. Romero-Puertas,Dilip Chatterjee,Rosa M. Mateos,Luis A. del Río,Luisa M. Sandalio +8 more
TL;DR: The results suggest that in pepper plants the tolerance to Cd toxicity is more dependent on the availability of NADPH than on its antioxidant capacity.
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Effects of different levels of dietary selenium nanoparticles on growth performance, muscle composition, blood biochemical profiles and antioxidant status of common carp (Cyprinus carpio)
Samyar Ashouri,Saeed Keyvanshokooh,Amir Parviz Salati,Seyed Ali Johari,Hossein Pasha-Zanoosi +4 more
TL;DR: The data of the present study recommend adding 1 mg nano-Se per kg diet to improve carp growth and antioxidant defense system.
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Role of reactive oxygen metabolites in crocidolite asbestos toxicity to mouse macrophages
Lee Goodglick,Agnes B. Kane +1 more
TL;DR: The results suggest that crocidolite-induced injury to macrophages depends on the formation of reactive oxygen metabolites, which may catalyze the production of hydroxyl radical from superoxide anion and hydrogen peroxide generated during phagocytosis.
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Developmental characteristics of pulmonary superoxide dismutase: relationship to idiopathic respiratory distress syndrome.
TL;DR: The premature infant may be compromised when exposed to the relative hyperoxia of the extrauterine environment by a reduced complement of the enzyme or a reduced ability to increase pulmonary SOD activity in response tohyperoxia.
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Water deficit : Induced oxidative stress and antioxidative defenses in rice plants
Yong Chool Boo,Jin Jung +1 more
TL;DR: The results imply that water deficit-induced oxidative stress in plants arises from an increase in formation of a certain strong prooxidant in excess of the antioxidative capacity of photosynthetic cells and that this pro oxidant, requiring light for its formation, is neither superoxide nor H2O2.
References
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The Reduction of Cytochrome c by Milk Xanthine Oxidase
Joe M. McCord,Irwin Fridovich +1 more
TL;DR: The data are consistent with the conclusion that xanthine oxidase generates an unstable reduced form of oxygen, presumably the superoxide anion, and that this radical is the agent which directly reduces cytochrome c and initiates the sulfite-oxygen chain reaction.
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The microestimation of succinate and the extinction coefficient of cytochrome c.
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The Preparation and Properties of Deflavo Xanthine Oxidase
TL;DR: The deflavoenzyme is catalytically active in the oxidation of xanthine with acceptors such as ferricyanide and cytochrome c.
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The mechanism of aerobic oxidase reaction catalyzed by peroxidase.
TL;DR: It has been found that peroxidase catalyzes the formation of free radicals of hydrogen donors in the presence of H 2 O 2, and Compound III is not an active intermediate for dihydroxyfumarate oxidation.
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Electron-spin-resonance evidence for enzymic reduction of oxygen to a free radical, the superoxide ion.
TL;DR: It is concluded that the species observed is the superoxide ion, O(2) (-), and that the stability of this ion is greatly increased in alkaline solution.