| nicotinamide adenine dinucleotide | <enzyme> Coenzymes that act as electron and hydrogen carriers in some oxidation-reduction reactions. (09 Oct 1997) |
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| nicotinamide adenine dinucleotide phosphate | See: NADP. (18 Nov 1997) |
| nicotinamide methyltransferase | <enzyme> Catalyses reversibly the methylation of nicotinamide in the presence of s-adenosylmethionine to yield 1-methylnicotinamide and s-adenosylhomocysteine Registry number: EC 2.1.1.1 Synonym: nicotinamide methylase, nicotinamide-s-adenosylmethionine methyltransferase (26 Jun 1999) |
| nicotinamide mononucleotide | <chemical> 3-carbamoyl-1-beta-d-ribofuranosyl pyridinium hydroxide-5'phosphate, inner salt. A nucleotide in which the nitrogenous base, nicotinamide, is in beta-n-glycosidic linkage with the c-1 position of d-ribose. Synonym: nicotinamide ribonucleotide; nmn. Chemical name: Pyridinium, 3-(aminocarbonyl)-1-(5-O-phosphono-beta-D-ribofuranosyl)-, inner salt (12 Dec 1998) |
| nicotinamide phosphoribosyltransferase | <enzyme> Utilises nicotinamide, mg(2+), prpp and ATP Registry number: EC 2.4.2.12 Synonym: nmn pyrophosphorylase (26 Jun 1999) |
| nicotinamide riboside kinase | <enzyme> Phosphorylates 3-deazaguanosine and tiazofurin Registry number: EC 2.7.1.- (26 Jun 1999) |
| nicotinamide-nucleotide adenylyltransferase | <enzyme> An enzyme that catalyses reversibly the transfer of the adenylyl moiety of ATP to the phosphoryl group of nmn to form NAD+ and pyrophosphate. The enzyme is found predominantly in the nuclei and catalyses the final reaction in the major pathway for the biosynthesis of NAD in mammals. Chemical name: ATP:nicotinamide-nucleotide adenylyltransferase Registry number: EC 2.7.7.1 (12 Dec 1998) |
| nicotinate | Salt or ester of nicotinic acid; some nicotinate's are used in ointments as rubefacients. (05 Mar 2000) |
| nicotinatenucleotide-dimethylbenzimidazole phosphoribosyltransferase | <enzyme> Involved in the synthesis of adenosyl-cobalamin (coenzyme b12); amino acid sequence given in second source Registry number: EC 2.4.2.21 Synonym: nicotinate ribonucleotide benzimidazole phosphoribosyltransferase, trans-n-glycosidase, nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase, cobu gene product, cobt protein, scobt protein, cobt gene product (26 Jun 1999) |
| nicotine | <drug> A plant alkaloid from tobacco, blocks transmission at nicotinic synapses. (18 Nov 1997) |
| nicotine dehydrogenase | <enzyme> Mo-pterin-fe-s cluster- and fad-dependent enzyme composed of 3 unequal polypeptides; catalyses the conversion of nicotine, acceptor, and water to (s)-6-hydroxynicotine and reduced acceptor Registry number: EC 1.5.99.4 (26 Jun 1999) |
| nicotine oxidase | <enzyme> Cytochrome p-450 enzyme Registry number: EC 1.5.3.- (26 Jun 1999) |
| nicotine stomatitis | Heat stimulated lesions, usually on the palate, that begin with erythema and progress to multiple white papules with a red dot in the centre. The red dot represents a dilated, inflamed salivary duct orifice. (05 Mar 2000) |
| nicotinehydroxamic acid methiodide | An effective cholinesterase reactivator, with actions that are most marked at the skeletal neuromuscular junction; antidotal effects are less striking at autonomic effector sites, and insignificant in the central nervous system. (05 Mar 2000) |
| nicotinic | <chemistry> Pertaining to, or derived from, nicotine; nicotic; used specifically to designate an acid related to pyridine, obtained by the oxidation of nicotine, and called nicotinic acid. Source: Websters Dictionary (01 Mar 1998) |
Synonyms : Cholinergic Agonist, Nicotinic, Nicotinic Agonist, Agonist, Nicotinic, Agonist, Nicotinic Cholinergic, Agonists, Nicotinic, Agonists, Nicotinic Cholinergic, Nicotinic Cholinergic Agonist, Nicotinic Cholinergic Agonists
Synonyms : Antagonists, Nicotinic
Synonyms : 3-Hydroxymethylpyridine, Nicomethanol Hydrofluoride, Pyridine-3-Methanol, Radecol, Roniacol, Ronicol, Ronicol Retard, beta-Pyridylcarbinol, 3 Hydroxymethylpyridine, Alcohol, Nicotinic, Alcohol, Nicotinyl, Hydrofluoride, Nicomethanol, Pyridine 3 Methanol
Synonyms : Eyelid, Third, Eyelids, Third, Membrane, Nictitating, Membranes, Nictitating, Nictitating Membranes, Third Eyelids
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| Nicotiana |
Tobacco (Nicotiana tabacum L.) is a broad-leafed plant of the nightshade family, indigenous to North and South America, whose dried and cured leaves are often smoked (see tobacco smoking) in the form of a cigar or cigarette, or in a smoking pipe, or in a water pipe or a hookah. Tobacco is also chewed, "dipped" (placed between the cheek and gum), and consumed as finely powdered snuff tobacco, which is sniffed into the nose. ...
Ãâó: en.wikipedia.org/wiki/Nicotiana
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| nicotine poisoning |
Historically, most cases of nicotine poisoning have been the result of its use as an insecticide; however, such use is less frequent now than previously. Every year many children go to the emergency room after eating cigarettes or cigarette butts. Sixty milligrams of nicotine will kill an adult, which is about the amount of nicotine in three or four cigarettes or half a cigar, if all nicotine were absorbed. ...
Ãâó: en.wikipedia.org/wiki/Nicotine_poisoning
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| nicotine |
Nicotine is an organic compound, an alkaloid found naturally throughout the tobacco plant, with a high concentration in the leaves. It is considered a carcinogen, and constitutes 0.3 to 5% of the plant by dry weight. The biosynthesis takes place in the roots and it is accumulated in the leaves. It is a potent nerve poison and is included in many insecticides. ...
Ãâó: en.wikipedia.org/wiki/Nicotine
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| nicotinic |
Nicotinic Receptors form ion channels present in the plasma membrane of cells. Their opening is gated by the neurotransmitter acetylcholine (acetylcholine receptors), and by nicotine. Nicotinic acetylcholine receptors are present in many tissues in the body. The neuronal receptors are found in the central nervous system and the peripheral nervous system. ...
Ãâó: en.wikipedia.org/wiki/Nicotinic
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| niche |
The specific role that an organism plays in its ecosystem.
Ãâó: www.geocities.com/easternbirds/Glossary.html
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| NIC | divide or reset the tail muscles, as of horses |
|---|---|
| NIC | cut a nick into |
| NIC | cut slightly, with a razor |
| NIC | a United States coin worth one twentieth of a dollar |
| NIC | a hard malleable ductile silvery metallic element that is resistant to corrosion |
| NIC | plate with nickel |
| NIC | priced at 5 cents |
| NIC | costing 5 dollars |
| NIC | an alloy whose main constituent is nickel |
| NIC | a bronze containing up to 30% nickel |
| NIC | a silver-white alloy containing copper and zinc and nickel |
| NIC | an alloy steel containing nickel |
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