| NADH2 oxidase | <enzyme> Chemical name: reduced nicotinamide adenine dinucleotide oxidase Registry number: EC 1.6.- Synonym: NADH oxidase (26 Jun 1999) |
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| Nadi reaction | Formation of indophenol blue by the action of an oxidizing enzyme present in certain cells and tissues when they are treated with a solution of alpha-naphthol and dimethylparaphenylenediamine; by this method, cells of the myelocyte series, which give a positive reaction, may be distinguished from those of the lymphocyte series, which give a negative reaction; endothelial leukocytes give a variable reaction, probably positive when they have phagocytised the debris of myeloid cells. Synonym: Nadi reaction. (05 Mar 2000) |
| nadide | 3-Carbamoyl-1-beta-d-ribofuranosylpyridinium hydroxide;a nicotinamide adenine dinucleotide compound used as an antagonist to alcohol and narcotics. (05 Mar 2000) |
| nadir | The lowest point, point of greatest adversity or despair. (18 Nov 1997) |
| nadolol | <chemical> 5(3-((1,1-dimethylethyl)amino)-2-hydroxypropoxy)-1,2,3,4-tetrahydro-2,3-naphthaenediol. A non-selective beta-adrenergic antagonist with a long half-life, used in cardiovascular disease to treat arrhythmias, angina pectoris, and hypertension. Nadolol is also used for migraine and for tremor. Pharmacological action: adrenergic beta-antagonists, anti-arrhythmia agents, antihypertensive agents, sympatholytics. Chemical name: 2,3-Naphthalenediol, 5-(3-((1,1-dimethylethyl)amino)-2-hydroxypropoxy)-1,2,3,4-tetrahydro- (12 Dec 1998) |
| NADP | <chemical> Nicotinamide adenine dinucleotide phosphate. A coenzyme composed of ribosylnicotinamide 5'-phosphate (nmn) coupled by pyrophosphate linkage to the 5'-phosphate adenosine 2',5'-bisphosphate. It serves as an electron carrier in a number of reactions, being alternately oxidised (NADP+) and reduced (NADPH). Chemical name: Adenosine 5'-(trihydrogen diphosphate), 2'-(dihydrogen phosphate), P'-5'-ester with 3-(aminocarbonyl)-1-beta-D-ribofuranosylpyridinium, inner salt (12 Dec 1998) |
| NADP phosphatase | <enzyme> Forms nad+ by hydrolysis of 3'-phosphate Registry number: EC 3.1.3.- Synonym: nadp+ phosphatase (26 Jun 1999) |
| NADP transhydrogenase | <enzyme> An enzyme present in the mitochondrial membrane of animals and in microorganisms. In the presence of energy (ATP) it catalyses reversibly the reduction of NAD by NADPH to yield NADP and NADH. This reaction permits the utilization of the reducing properties of NADPH by the respiratory chain and in the reverse direction it allows the reduction of NADP for biosynthetic purposes. Chemical name: NADPH:NAD+ oxidoreductase (B-specific) Registry number: EC 1.6.1.1 (12 Dec 1998) |
| NADP+ | <abbreviation> Nicotinamide adenine dinucleotide phosphate (oxidised form). (05 Mar 2000) |
| NADP+-dependent serine dehydrogenase | <enzyme> Catalyses the oxidation of the hydroxyl group of ser to form 2-aminomalonate saemialdehyde; from agrobacterium tumefaciens. Registry number: EC 1.1.1.- Synonym: nadp+ ser dehydrogenase (26 Jun 1999) |
| NADP-dependent flavonol reductase | <enzyme> Isolated from maise Registry number: EC 1.1.1.- Synonym: a1 gene product (26 Jun 1999) |
| NADP-reducing hydrogenase | <enzyme> Operon from desulfovibrio contains 4 genes: hnda, hndb, hndc and hndd; does not reduce nad; genbank u07229 Registry number: EC 1.12.1.- Synonym: hnd gene product, hndabcd gene product (26 Jun 1999) |
| NADPH | <abbreviation> Nicotinamide adenine dinucleotide phosphate (reduced form). (05 Mar 2000) |
| NADPH - phenanthrenequinone oxidoreductase | <enzyme> Cytosolic enzyme from channel catfish; involved in futile redox cycling forming h2o2 leading to oxidative stress Registry number: EC 1.6.99.- Synonym: NADPH pq oxidoreductase (26 Jun 1999) |
| NADPH dehydrogenase | <enzyme> A flavoprotein that reversibly oxidises NADPH to NADP and a reduced acceptor. Chemical name: NADPH:(acceptor) oxidoreductase Registry number: EC 1.6.99.1 (12 Dec 1998) |