Results 171 to 180 of about 4,782 (205)
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Purification and properties of dehydroascorbate reductase from spinach leaves
Phytochemistry, 1977Abstract Dehydroascorbate reductase was detected in the leaves of several plants and has been partially purified from spinach leaves. The enzyme has a MW of ca 25 000, a pH optimum of 7.5, a Km for glutathione (GSH) of 4.43 ± 0.4 mM and a Km for dehydroascorbate of 0.34 ± 0.05 mM. High concentrations of dehydroascorbate inhibit the enzyme.
Christine H Foyer, Barry Halliwell
exaly +2 more sources
Molecular and Biochemical Parasitology, 1994
Trypanosoma cruzi, the causative agent of Chagas' disease, has been considered for many years as an organism with limited capability to metabolize...
Daniel Clark, Jorge Arévalo
exaly +3 more sources
Trypanosoma cruzi, the causative agent of Chagas' disease, has been considered for many years as an organism with limited capability to metabolize...
Daniel Clark, Jorge Arévalo
exaly +3 more sources
Neuroscience, 1999 n this study, we describe for the first time the occurrence, within the central nervous system of the rat, of a dehydroascorbate reductase analogous to the one we recently described in the liver.
Francesco Fornai +2 more
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A novel dehydroascorbate reductase from spinach chloroplasts homologous to plant trypsin inhibitor
FEBS Letters, 1994 Dehydroascorbate reductase has been isolated from spinach chloroplasts and purified to apparent homogeneity. The N-terminal amino acid sequence of the enzyme is homologous to the Kunitz-type trypsin inhibitors from plant sources. It is shown that spinach
Hartmut Follmann, Ingo Häberlein
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Journal of Plant Physiology, 2003 To analyze the physiological role of dehydroascorbate reductase (DHAR, EC 1.8.5.1) catalyzing the reduction of DHA to ascorbate in environmental stress adaptation, T1 transgenic tobacco (Nicotiana tabacum cv.
Suk-Yoon Kwon +2 more
exaly +2 more sources
Plant dehydroascorbate reductase moonlights as membrane integrated ion channel
Archives of Biochemistry and Biophysics, 2023Plant dehydroascorbate reductases (DHARs) are only known as soluble antioxidant enzymes of the ascorbate-glutathione pathway. They recycle ascorbate from dehydroascorbate, thereby protecting plants from oxidative stress and the resulting cellular damage.
Bhaba Krishna Das +9 more
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Antioxidant role of dehydroascorbic acid reductase in insects
Biochimica et Biophysica Acta (BBA) - General Subjects, 1993Dehydroascorbic acid reductase, which catalyses the regeneration of ascorbic acid from dehydroascorbic acid, is reported here to occur widely among insects. Due to the reported absence of glutathione peroxidase in insects and the generally low affinity of catalase for hydrogen peroxide, dehydroascorbic acid reductase may play a pivotal role in the ...
C B, Summers, G W, Felton
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Ebselen Has Dehydroascorbate Reductase and Thioltransferase-like Activities
Biochemical and Biophysical Research Communications, 2002Ebselen (2-phenyl-1,2-benzisoselenazol-3(2H)-one), a seleno-organic compound, has been reported to mimic glutathione peroxidase (GPX). Since bovine erythrocyte GPX showed dehydroascorbic acid (DHA) reductase and thioltransferase (TTase) activities, ebselen was also examined for DHA reductase and TTase-like activities.
Che-Hun, Jung +2 more
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λ-crystallin related to dehydroascorbate reductase in the rabbit lens
Japanese Journal of Ophthalmology, 2003To evaluate the relationship of lambda-crystallin to reduced nicotinamide adenine dinucleotide (NADH)-dependent dehydroascorbate (DHA) reductase found specifically in the rabbit lens.DHA reductase Fractions I-IV were separated from the lambda/betaL1-crystallin fraction of rabbit lens soluble protein by diethylaminoethyl (DEAE)-cellulose ion-exchange ...
Takahiro, Suzuki +8 more
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A ‘dehydroascorbic acid reductase’ factor in guinea-pig tissues
Experientia, 1967Dans des tissus de cobayes il existe une proteine capable de catalyser la reduction de l'acide dehydrascorbique en acide ascorbique. Sa distribution, sa purification, sa specificite et son action en presence d'enzymes inhibitrices typiques ont ete etudie.
R F, Grimble, R E, Hughes
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