Results 281 to 290 of about 72,905 (323)
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Trends in Microbiology, 1998
Catabolite repression is a central multigene regulatory network that enables bacteria to select and utilize the optimal carbon and energy sources available in a given environment. Cyclic AMP and catabolite gene activator protein (CAP) play central roles in mediating catabolite repression in enteric bacteria but are absent from Gram-positive bacteria ...
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Catabolite repression is a central multigene regulatory network that enables bacteria to select and utilize the optimal carbon and energy sources available in a given environment. Cyclic AMP and catabolite gene activator protein (CAP) play central roles in mediating catabolite repression in enteric bacteria but are absent from Gram-positive bacteria ...
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Ferredoxin : NADP+ Oxidoreductase
2018Ferredoxin-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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NADP-MALIC ENZYME 1 Affects Germination after Seed Storage in Arabidopsis thaliana
Plant and Cell Physiology, 2018Aging decreases the quality of seeds and results in agricultural and economic losses. The damage that occurs at the biochemical level can alter the seed physiological status. Although loss of viability has been investigated frequently, little information
Farzaneh Yazdanpanah +10 more
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How is ferredoxin-NADP reductase involved in the NADP photoreduction of chloroplasts?
Photosynthesis Research, 2004NADP photoreduction of chloroplasts was discovered in 1951, and subsequent research was conducted to elucidate the enzymatic mechanisms involved in this reaction. In 1963, ferredoxin-NADP reductase (FNR; EC 1.18.1.2, ferredoxin-NADP oxidoreductase) was isolated and purified to a crystalline form.
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A lysyl residue at the NADP binding site of ferredoxin-NADP reductase
Biochimica et Biophysica Acta (BBA) - Enzymology, 1976Dansyl chloride, at low molar ratio, inactivates ferredoxin-NADP reductase (NADPH:ferredoxin oxidoreductase, EC 1.6.7.1). The complete protection afforded either by NADP or NADPH suggests a direct involvement of the active site. Experiments with [Me-14C] dansyl chloride showed that about 1.5 residues per flavin were dansylated: by differential ...
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Enzymatic Synthesis of Caged NADP Cofactors: Aqueous NADP Photorelease and Optical Properties
The Journal of Organic Chemistry, 2000The synthesis of caged NADP analogues 18, 19, and 20 has been accomplished by utilizing the transglycosidase activity of solubilized NAD glycohydrolase (porcine brain) to incorporate caged nicotinamides 2, 3, and 4 into NADP. The synthesis of several nicotinamides modified at the carboxamide with o-nitrobenzyl photolabile groups is demonstrated as well
Douglas Magde +2 more
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Archives of Biochemistry and Biophysics, 1979
Abstract The plastidic ferredoxin-NADP + reductase from the xanthophycean alga Bumilleriopsis forms a stoichiometric 1:1 complex with ferredoxin and NADP + which is demonstrated by difference spectra of both complexes. Butanedione modification of the flavoprotein results in loss of its enzymatic activities (transhydrogenase and diaphorase ...
Gerhard Bookjans, Peter Böger
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Abstract The plastidic ferredoxin-NADP + reductase from the xanthophycean alga Bumilleriopsis forms a stoichiometric 1:1 complex with ferredoxin and NADP + which is demonstrated by difference spectra of both complexes. Butanedione modification of the flavoprotein results in loss of its enzymatic activities (transhydrogenase and diaphorase ...
Gerhard Bookjans, Peter Böger
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Analogues of NADP+ as inhibitors and coenzymes for NADP+ malic enzyme from maize leaves
Photosynthesis Research, 1991Structural analogues of the NADP(+) were studied as potential coenzymes and inhibitors for NADP(+) dependent malic enzyme from Zea mays L. leaves. Results showed that 1, N(6)-etheno-nicotinamide adenine dinucleotide phosphate (∈ NADP(+)), 3-acetylpyridine-adenine dinucleotide phosphate (APADP(+)), nicotinamide-hypoxanthine dinucleotide phosphate (NHDP(+
Marion H. O'Leary +4 more
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Structure of ferredoxin-NADP+ oxidoreductase and the location of the NADP binding site
Journal of Molecular Biology, 1981Abstract Ferredoxin-NADP + oxidoreductase is the enzyme responsible for catalyzing the production of NADPH during photosynthesis. The structure of “ferredoxin reductase” has been elucidated at 3.7 A resolution by the method of multiple isomorphous replacement with anomalous scattering.
J. R. Herriott, Steven Sheriff
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Archives of Biochemistry and Biophysics, 1983
Inactive NADP-malate dehydrogenase (disulfide form) from chloroplasts of Zea mays is activated by reduced thioredoxin while the active enzyme (dithiol form) is inactivated by incubation with oxidized thioredoxin. This reductive activation of NADP-malate dehydrogenase is inhibited by over 95% in the presence of NADP and the Kd for this interaction of ...
Anthony R. Ashton, Marshall D. Hatch
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Inactive NADP-malate dehydrogenase (disulfide form) from chloroplasts of Zea mays is activated by reduced thioredoxin while the active enzyme (dithiol form) is inactivated by incubation with oxidized thioredoxin. This reductive activation of NADP-malate dehydrogenase is inhibited by over 95% in the presence of NADP and the Kd for this interaction of ...
Anthony R. Ashton, Marshall D. Hatch
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