Purification and Characterization of Dehydroascorbate Reductase from Rice
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چکیده
منابع مشابه
Purification and characterization of glutathione-dependent dehydroascorbate reductase from rat liver.
GSH-dependent enzymic reduction of dehydroascorbic acid to ascorbic acid has been studied in rat liver cytosol. After gel filtration of cytosol on Sephadex G-100 SF, dehydroascorbate reductase activity was recovered in two distinct peaks, one corresponding to glutaredoxin (an enzyme already known for its dehydroascorbate reductase activity) and another, much larger one, corresponding to a novel...
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Abstract Dehydroascorbate reductase (DHAR) plays a critical role in the ascorbate-glutathione recycling reaction for most higher plants. To date, studies on DHAR in higher plants have focused largely on Arabidopsis and agricultural plants, and there is virtually no information on the molecular characteristics of DHAR in gymnosperms. The present study reports the cloning and characteristics of a...
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The NADH-dependent morphinone reductase from Pseudomonas putida M10 catalyses the reduction of morphinone and codeinone to hydromorphone and hydrocodone respectively. Morphinone reductase was purified from crude cell extracts to apparent homogeneity in a single affinity-chromatography step using Mimetic Yellow 2. The purified enzyme was a dimeric flavoprotein with two identical subunits of M(r)...
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An enzyme catalyzing the reduction of S-(2,4-dichlorophenacyl)glutathione to 2',4'-dichloroacetophenone was purified to apparent homogeneity by ion exchange, gel filtration, and hydroxylapatite chromatography from rat hepatic cytosol. The molecular weight was 30,000-37,000. The enzyme is distinct from the glutathione S-transferases, mercaptopyruvate sulfurtransferase, and glyoxalase I. Substrat...
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Thauera selenatis is one of two isolated bacterial species that can obtain energy by respiring anaerobically with selenate as the terminal electron acceptor. The reduction of selenate to selenite is catalyzed by a selenate reductase, previously shown to be located in the periplasmic space of the cell. This study describes the purification of the enzyme from T. selenatis grown anaerobically with...
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ژورنال
عنوان ژورنال: Plant and Cell Physiology
سال: 1997
ISSN: 0032-0781,1471-9053
DOI: 10.1093/oxfordjournals.pcp.a029149