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Nicotinamide adenine dinucleotide (NAD) is a coenzyme central to metabolism. [3] Found in all living cells, NAD is called a dinucleotide because it consists of two nucleotides joined through their phosphate groups. One nucleotide contains an adenine nucleobase and the other, nicotinamide.
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').
Other names in common use include nicotinamide adenine dinucleotide pyrophosphatase, NADP+ pyrophosphatase, and NADH pyrophosphatase. This enzyme participates in nicotinate and nicotinamide metabolism .
Nicotinamide adenine dinucleotide phosphate (NADPH) is used in anabolic reactions while nicotinamide adenine dinucleotide (NAD) is used in catabolic reactions. [3] In the field of biocatalysis , NAD(P)-dependent oxidoreductases are widely used for the production of chiral alcohols, amines, and other valuable compounds.
Other names of this enzyme in common use include nicotinamide adenine dinucleotide (phosphate) nucleosidase, triphosphopyridine nucleotidase, NAD(P) nucleosidase, NAD(P)ase, and nicotinamide adenine dinucleotide (phosphate) glycohydrolase. This enzyme participates in nicotinate and nicotinamide metabolism.
NADPH oxidase (nicotinamide adenine dinucleotide phosphate oxidase) is a membrane-bound enzyme complex that faces the extracellular space. It can be found in the plasma membrane as well as in the membranes of phagosomes used by neutrophil white blood cells to engulf microorganisms.
Other names in common use include NADP +-malic enzyme, NADP +-malate dehydrogenase, malic dehydrogenase (nicotinamide adenine dinucleotide phosphate), malate NADP + dehydrogenase, NADP + malate dehydrogenase, NADP +-linked malate dehydrogenase, and malate dehydrogenase (NADP +). This enzyme participates in pyruvate metabolism and carbon fixation.
The systematic name of this enzyme class is (6S)-6-β-hydroxy-1,4,5,6-tetrahydronicotinamide-adenine-dinucleotide hydro-lyase (ATP-hydrolysing; NADH-forming). Other names in common use include reduced nicotinamide adenine dinucleotide hydrate dehydratase , ATP-dependent H4NAD(P)+OH dehydratase , (6 S )-β-6-hydroxy-1,4,5,6 ...