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A biological coenzyme that acts as an electron carrier in enzymatic reactions. 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.
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').
In enzymology, a malate dehydrogenase (NADP +) (EC 1.1.1.82) is an enzyme that catalyzes the chemical reaction (S)-malate + NADP + oxaloacetate + NADPH + H +. Thus, the two substrates of this enzyme are (S)-malate and NADP +, whereas its 3 products are oxaloacetate, NADPH, and H +.
In the plant-like family of FNRs, selective evolutionary pressure has led to differences in the catalytic efficiency of FNRs in photosynthetic and nonphotosynthetic organisms. Electron transfer by FNR is a rate limiting step in photosynthesis, so the plastidic FNR in plants have evolved to be highly efficient. [8]
The electron transport chain of photosynthesis is often put in a diagram called the Z-scheme, because the redox diagram from P680 to P700 resembles the letter Z. [3] The final product of PSII is plastoquinol, a mobile electron carrier in the membrane. Plastoquinol transfers the electron from PSII to the proton pump, cytochrome b6f. The ultimate ...
Rather, NADP-ME was directly transformed from a C 3 species in photosynthesis, and even earlier origins from an ancient cystolic ancestor. In the cytosol, the enzyme existed as a series of housekeeping isoforms purposed towards a variety of functions including malate level maintenance during hypoxia, microspore separation, and pathogen defense.
In enzymology, an alcohol dehydrogenase [NAD(P) +] (EC 1.1.1.71) is an enzyme that catalyzes the chemical reaction. an alcohol + NAD(P) + an aldehyde + NAD(P)H + H + The 3 substrates of this enzyme are alcohol, NAD +, and NADP +, whereas its 4 products are aldehyde, NADH, NADPH, and H +.
In enzymology, an aldehyde dehydrogenase (NADP+) (EC 1.2.1.4) is an enzyme that catalyzes the chemical reaction. an aldehyde + NADP + + H 2 O an acid + NADPH + H +. The 3 substrates of this enzyme are aldehyde, NADP +, and H 2 O, whereas its 3 products are acid, NADPH, and H +.