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Nicotinamide adenine dinucleotide phosphate, abbreviated NADP [1] [2] or, in older notation, TPN (triphosphopyridine nucleotide), is a cofactor used in anabolic reactions, such as the Calvin cycle and lipid and nucleic acid syntheses, which require NADPH as a reducing agent ('hydrogen source'). NADPH is the reduced form, whereas NADP + is the ...
NADP is a reducing agent in anabolic reactions like the Calvin cycle and lipid and nucleic acid syntheses. NADP exists in two forms: NADP+, the oxidized form, and NADPH, the reduced form. NADP is similar to nicotinamide adenine dinucleotide (NAD), but NADP has a phosphate group at the C-2′ position of the adenosyl
In enzymology, a ferredoxin-NADP + reductase (EC 1.18.1.2) abbreviated FNR, is an enzyme that catalyzes the chemical reaction. 2 reduced ferredoxin + NADP + + H + 2 oxidized ferredoxin + NADPH. The 3 substrates of this enzyme are reduced ferredoxin, NADP +, and H +, whereas its two products are oxidized ferredoxin and NADPH.
In this phase, two molecules of NADP + are reduced to NADPH, utilizing the energy from the conversion of glucose-6-phosphate into ribulose 5-phosphate. Oxidative phase of pentose phosphate pathway. Glucose-6-phosphate ( 1 ), 6-phosphoglucono-δ-lactone ( 2 ), 6-phosphogluconate ( 3 ), ribulose 5-phosphate ( 4 )
NADH + NADP + + H + outside => NAD + + NADPH + H + inside. This redox reaction is a transfer of hydride equivalents from NADH to NADP + coupled to a translocation of protons across a membrane. NADP + is reduced to NADPH by NADH, which is oxidized into NAD +. This reduction is tied to the inward translocation of protons across a membrane. [2]
Other names in common use include nitrite reductase (reduced nicotinamide adenine dinucleotide, (phosphate)), NADH-nitrite oxidoreductase, NADPH-nitrite reductase, assimilatory nitrite reductase, nitrite reductase [NAD(P)H2], and NAD(P)H2:nitrite oxidoreductase.
Reduced NAD levels and the aging process. For this study, Ziegler and his team developed cellular models to look at how cells might react when NAD levels are reduced during the aging process.
Thus, the two substrates of this enzyme are (S)-malate and NADP +, whereas its 3 products are pyruvate, CO 2, and NADPH. Malate is oxidized to pyruvate and CO 2, and NADP + is reduced to NADPH. This enzyme belongs to the family of oxidoreductases, to be specific those acting on the CH-OH group of donor with NAD + or NADP + as acceptor.