Results 241 to 250 of about 88,950 (284)

The interaction of ferredoxin with chloroplast ferredoxin-linked enzymes

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1986
Ferredoxin, reduced by Photosystem I during oxygenic photosynthesis, then serves as the electron donor for the reduction of NADP+ [1], nitrite [2], and the reductive conversion of 2-oxoglutarate plus glutamine to glutamate [3]. Evidence exists thit two of these ferredoxin-dependent reductions, that of NADP+ (catalyzed by ferredoxin:NADP+ oxidoreductase,
M. Hirasawa, M. Boyer, K. Gray, D. Davis, D. Knaff   +4 more
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Interaction between ferredoxin and ferredoxin-NADP reductase from chloroplasts

Biochemical and Biophysical Research Communications, 1968
Abstract The photochemical reduction of pyridine nucleotides in isolated chloroplasts was shown to proceed via ferredoxin and ferredoxin-NADP reductase ( Shin et , al. , 1963 . The latter enzyme is a flavoprotein which can also mediate the transfer of electrons in reverse, from NADPH to ferredoxin (Lazzarini and San Pietro, 1962) , or to ...
N, Nelson, J, Neumann
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Ferredoxin : NADP+ Oxidoreductase

2018
Ferredoxin-NADP + reductase, the essential catalyst of NADP + photoreduction, is a flavoprotein ubiquitous in photosynthetic eukaryotic cells and Cyano-bacteria. The cyanobacteria enzyme has a much lower content of methionine and lysine and more histidines.
G. Zanetti, A. Allverti
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Einflu� von Ferredoxin auf Ferredoxin-NADP-Reduktase

Planta, 1971
Transhydrogenase and diaphorase activity of ferredoxin-NADP reductase are enhanced by plant ferredoxins. This stimulation is specific; ferredoxin cannot be replaced by sulfhydryl compounds such as cysteine or dithiothreitol, the apoprotein of ferredoxin or Fe2+, Fe3+ ions.
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Ferredoxins at the crossroads

Nature Chemical Biology, 2022
Ferredoxins are universal electron donors. A study focusing on the two human mitochondrial ferredoxins reveals the existence of unique cellular functions and partners for each protein.
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Ferredoxin and Ferredoxin-Dependent Enzymes

1996
Ferredoxin, a Mr=11 kDa protein that contains a single low potential [2Fe-2S] cluster, serves as the ultimate acceptor of electrons from Photosystem I. In addition to serving as the electron donor for NADP+ reduction, a reaction catalyzed by the FAD-containing, membrane-associated enzyme ferredoxin: NADP+ oxidoreductase, ferredoxin also serves as the ...
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Interaction of ferredoxin-linked nitrite reductase with ferredoxin

Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1985
Abstract The native, ferredoxin-linked, form ( M r = 85 000) of nitrite reductase (ferredoxin:nitrite oxidoreductase, EC 1.7.7.1) forms a complex with ferredoxin that can be detected either by enzyme binding to a ferredoxin-Sepharose 4B affinity column or by spectral changes produced when the two proteins are mixed.
Masakazu Hirasawa, David B. Knaff
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Ferredoxin from Veillonella alcalescens

Biochimica et Biophysica Acta (BBA) - Protein Structure, 1973
Abstract Ferredoxin from Veillonella alcalescens was isolated and purified giving an A 390 A 280 ratio of 0.82. Amino acid assays, iron and acid-labile sulfide analysis and EPR measurements indicate that the protein belongs to the class of eight iron-eight acid-labile sulfide ferredoxins.
H, Dalton, J, Zubieta
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Ferredoxin-dependent chloroplast enzymes

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1991
Article de synthese traitant des proprietes biochimiques et structurales des ferredoxines des cyanobacteries, algues et plantes superieures. Analyse de leurs roles fonctionnels dans les reactions photosynthetiques, en particulier dans les mecanismes d'action des enzymes NADP + : ferredoxine oxidoreductase, thioredoxine reductase, nitrite reductase et ...
D B, Knaff, M, Hirasawa
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Anthracycline antibiotic reduction by spinach ferredoxin-NADP+ reductase and ferredoxin

Biochemistry, 1985
Spinach NADPH:ferredoxin oxidoreductase (EC 1.6.7.1) catalyzes the NADPH-dependent reduction of the anthracyclines daunomycin, aclacinomycin A, and nogalamycin and their respective 7-deoxyanthracyclinones. Under anaerobic conditions, the endogenous rate of O2 reduction by NADPH catalyzed by ferredoxin reductase (0.12 s-1 at pH 7.4) is augmented by the ...
J, Fisher, B R, Abdella, K E, McLane
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