| 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) |
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| nicotinamide | <biochemistry> Member of the water soluble B vitamin group, used in the production of fatty acids, steroids and cholesterol, deficiency is known as pellagra. Has cholesterol-lowering and vasodilating properties. (27 Sep 1997) |
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| nicotinamide adenine dinucleotide | <enzyme> Coenzymes that act as electron and hydrogen carriers in some oxidation-reduction reactions. (09 Oct 1997) |
| nicotinamide adenine dinucleotide phosphate | See: NADP. (18 Nov 1997) |
| 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-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) |
| 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) |
| acetylserotonin n-methyltransferase | <enzyme> An enzyme that catalyses the transfer of a methyl group from s-adenosylmethionine to n-acetylserotonin to form n-acetyl-5-methoxytryptamine (melatonin). Chemical name: S-Adenosyl-L-methionine:N-acetylserotonin O-methyltransferase Registry number: EC 2.1.1.4 (12 Dec 1998) |
| aklanonic acid methyltransferase | <enzyme> Catalyses the methyl esterification of aklanonic acid; involved in daunomycin biosynthesis; genbank l35154; see also daunorubicin-doxorubicin polyketide synthase Registry number: EC 2.1.1.- Synonym: dauc protein, dauc gene product, aamtase, dnrc protein, dnrc gene product (26 Jun 1999) |
| avermectin B2 O-methyltransferase | <enzyme> Converts avermectin b component to avermectin a components during avermectin biosynthesis Registry number: EC 2.1.1.- (26 Jun 1999) |
| azaheterocycle N-methyltransferase | <enzyme> Catalyses the n-methylation of nicotine to n-methylnicotinium Registry number: EC 2.1.1.- Synonym: azh-n-methyltransferase, nicotine n-methyltransferase (26 Jun 1999) |
| BalI methyltransferase | <enzyme> Recognises 5'-tggcca-3' and methylates first c to produce c(5)-methylcytosine Registry number: EC 2.1.1.- Synonym: methyltransferase bali, DNA methyltransferase bali (26 Jun 1999) |
| BcgI methyltransferase | <enzyme> From bacillus coagulans; an m(6)a-methyltransferase which produces n-6 methyladenine as the sole product of bcgi methylation Registry number: EC 2.1.1.- Synonym: bcgi methylase (26 Jun 1999) |
| beta-carboline-2-N-methyltransferase | <enzyme> Brain enzyme may have a role in development of idiopathic parkinson disease by forming n-methylated beta-carbolinium cations Registry number: EC 2.1.1.- Synonym: betac-2-nmt (26 Jun 1999) |
| Bsp6I methyltransferase | <enzyme> From plasmid-borne gene bsp6i of bacillus; 315 amino acids, mw 36.3 kD; genbank x81638 Registry number: EC 2.1.1- Synonym: bsp6i mtase, bsp6im gene product, bsp6i methylase, m.bsp6i (26 Jun 1999) |