Results 201 to 210 of about 62,836 (259)
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Thio-NADP is not an antagonist of NAADP
Cell Biochemistry and Biophysics, 1998Nicotinic acid adenine dinucleotide phosphate (NAADP) is a metabolite of NADP, which can release Ca2+ from stores that are distinct from those activated by either cyclic ADP-ribose or inositol 1,4,5-trisphosphate (IP3). It has previously been suggested that thio-NADP is a specific antagonist of NAADP (Chini et al. [1995] J. Biol. Chem. 270, 3216-3223).
Dickey, DM +3 more
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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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Affinity labeling of spinach ferredoxin-NADP+ oxidoreductase with periodate-oxidized NADP+
Archives of Biochemistry and Biophysics, 1984Periodate-oxidized NADP+ (dialdehyde-NADP+) inactivated soluble ferredoxin-NADP+ oxidoreductase and combined covalently to the enzyme. This inactivation was first order with respect to dialdehyde-NADP+ and followed saturation kinetics, indicating that the enzyme initially forms a reversible complex with the inactivator.
R L, Chan, N, Carrillo
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Complex formation by ferredoxin-NADP+ reductase with ferredoxin or NADP+
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1973Abstract Complex formation by ferredoxin-NADP + reductase (NADPH:ferredoxin oxidoreductase, EC 1.6.99.4) with ferredoxin was measured by the independent methods based on the changes of circular dichroism, fluorescence intensity and the chromatographic behavior on a Sephadex G-75 column of the two proteins after mixing.
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Apollo-NADP+: a spectrally tunable family of genetically encoded sensors for NADP+
Nature Methods, 2016NADPH-dependent antioxidant pathways have a critical role in scavenging hydrogen peroxide (H2O2) produced by oxidative phosphorylation. Inadequate scavenging results in H2O2 accumulation and can cause disease. To measure NADPH/NADP(+) redox states, we explored genetically encoded sensors based on steady-state fluorescence anisotropy due to FRET ...
William D, Cameron +5 more
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Archives of Biochemistry and Biophysics, 1965
Abstract Chlorophyllin a catalyzes the photoreduction of NADP (and NAD to a lesser extent) in the presence of ascorbate as electron donor and NADP reductase as the coupling enzyme. Photosynthetic pyridine nucleotide reductase is inactive in the reaction and does not stimulate the reaction observed with NADP reductase.
L P, VERNON, A S, PIETRO, D A, LIMBACH
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Abstract Chlorophyllin a catalyzes the photoreduction of NADP (and NAD to a lesser extent) in the presence of ascorbate as electron donor and NADP reductase as the coupling enzyme. Photosynthetic pyridine nucleotide reductase is inactive in the reaction and does not stimulate the reaction observed with NADP reductase.
L P, VERNON, A S, PIETRO, D A, LIMBACH
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The Synthesis of Poly-L-Lysine-Succinyl-Nadp: An Analogue for Nadp/H
The International Journal of Artificial Organs, 1980Poly-L-lysine-succinyl-NADP, an analogue for nicotinamide adenine dinucleotide phosphate (NADP/H), has been synthesized by linking NADP/H to poly-L-lysine hydrobromide. This analogue (PL-SNP) was assayed with N, N dimethylaniline (DMA) in the presence of hepatic microsomal oxidase. A regeneration system of G-6-p and G-6-PD was used
R A, Wills, W M, Southard, S S, Sofer
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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
C P, Salerno, D, Magde, A P, Patron
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