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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 +.
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').
Crystal structure of a homologous human malic enzyme highlights key residues involved in substrate binding and catalysis. Site II contains the GLGDLG motif, site V contains the other GXGXXG motif, the highlighted arginine residue interacts with both NADP + and malate, and the highlighted lysine may possibly be involved in base catalysis.
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.
Malate dehydrogenase (NAD(P) +) (EC 1.1.1.299, MdH II, NAD(P) +-dependent malate dehyrogenase) is an enzyme with systematic name (S)-malate:NAD(P) + oxidoreductase. [1] This enzyme catalyses the following chemical reaction
This enzyme belongs to the family of oxidoreductases, specifically those acting on the aldehyde or oxo group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is aryl-aldehyde:NADP+ oxidoreductase (ATP-forming). Other names in common use include aromatic acid reductase, and aryl-aldehyde dehydrogenase (NADP+).
In enzymology, a 21-hydroxysteroid dehydrogenase (NADP +) (EC 1.1.1.151) is an enzyme that catalyzes the chemical reaction. pregnan-21-ol + NADP + pregnan-21-al + NADPH + H +. Thus, the two substrates of this enzyme are pregnan-21-ol and NADP +, whereas its 3 products are pregnan-21-al, NADPH, and H +.
In enzymology, a glyoxylate reductase (NADP +) (EC 1.1.1.79) is an enzyme that catalyzes the chemical reaction. glycolate + NADP + glyoxylate + NADPH + H +. Thus, the two substrates of this enzyme are glycolate and NADP +, whereas its 3 products are glyoxylate, NADPH, and H +.