| methyl violet | Mixtures of tetra-, penta-, or pararosanilin which vary in shade of violet depending on the extent of methylation (designated R for reddish shades, B for bluish shades); the hexamethyl compound is known as crystal violet, the pentamenthyl compound as methyl violet 6B. As stains, methyl violet has many bacteriological, histological, and cytological applications. (05 Mar 2000) |
|---|---|
| methyl xanthine | <chemical, drug> Naturally occurring purine alkaloids such as theobromine, theophylline and caffeine (trimethyl xanthine). They inhibit cAMP phosphodiesterase and thus cause an increase in the intracellular cAMP concentration. (18 Nov 1997) |
| methyl yellow | C6H5N:NC6H4N(CH3)2;a fat-soluble yellow dye (MW 225) that has hepatic carcinogenic action in experimental animals; used as an indicator of pH (red, at pH 2.9, yellow at pH 4.0). Synonym: dimethylaminoazobenzene, methyl yellow. (05 Mar 2000) |
| p,p'-dichlorodiphenyl methyl carbinol | A synthetic compound found effective as a miticide. Acronym: DMC (05 Mar 2000) |
| S-adenosyl-L-methionine-2-octaprenyl-3-methyl-5-hydroxy-6-methoxy-1,4-benzoquinone-O-methyltransferase | <enzyme> Proposed pathway for final reaction in ubiquinone biosynthesis. Registry number: EC 2.1.1.- Synonym: 2-octaprenyl-3-methyl-5-hydroxy-6-methoxy-1,4-benzoquinone methyltransferase, ubig gene product, ubig protein (26 Jun 1999) |
| pyribenzyl methyl sulfate | 2-(hydroxymethyl)-1,1-dimethylpiperidinium methyl sulfate benzylate;an anticholinergic agent. Synonym: pyribenzyl methyl sulfate. (05 Mar 2000) |
| NADH-methyl viologen reductase | <enzyme> Fad-protein from rhodospirillum rubrum which also reduces methylene blue and 2,6-dichlorophenol-indophenol Registry number: EC 1.6.- (26 Jun 1999) |
| ng-nitroarginine methyl ester | <chemical> A non-selective inhibitor of nitric oxide synthase. It has been used experimentally to induce hypertension. Pharmacological action: enzyme inhibitors. (12 Dec 1998) |
| n-methyl-3,4-methylenedioxyamphetamine | <chemical> An n-substituted amphetamine analog. It is a widely abused drug classified as a hallucinogen and causes marked, long-lasting changes in brain serotonergic systems. It is commonly referred to as mdma or ecstasy. Pharmacological action: adrenergic uptake inhibitors, hallucinogens, serotonin agents. Chemical name: 1,3-Benzodioxole-5-ethanamine, N,alpha-dimethyl- (12 Dec 1998) |
| N methyl D aspartate receptor | <physiology> Glutamate receptor sub type (see excitatory amino acids). N methyl D aspartate receptor channels seem to be potentiated by intracellular arachidonic acid. Acronym: NMDA (26 Mar 1998) |
| N-methyl, D-aspartic acid | n methyl D aspartate receptor |
| isoprenylcysteine methyl ester hydrolase | <enzyme> Acts on proteins post-translationally isoprenylated on a cysteine 3 amino acids in from the carboxy terminus, followed by carboxymethylation Registry number: EC 3.1.1.- Synonym: isoprenylcys methylase (26 Jun 1999) |
| tosylarginine methyl ester | <chemical> N(2)-(p-tolylsulfonyl)-l-arginine, methyl ester. Arginine derivative which is a substrate for many proteolytic enzymes. As a substrate for the esterase from the first component of complement, it inhibits the action of c(l) on c(4). Chemical name: L-Arginine, N2-((4-methylphenyl)sulfonyl)-, methyl ester (12 Dec 1998) |
| tosylarginine methyl ester hydrolase | <enzyme> Protease from sea urchin (arbacia punctulata) eggs; fertilization in the sea urchin is accompanied by the release of this protease from eggs into the surrounding seawater; enzyme uses tame as substrate; used as a measure of trypsin-like activity; tryptase (formerly here) is mast cell tryptase (EC 3.4.21.59) Registry number: EC 3.4.- Synonym: tame hydrolase, tame esterase, esterase a2, n-tosyl-l-arginine methyl ester esterase, tamase, tamase-1 (26 Jun 1999) |
| 1-methyl-3-isobutylxanthine | <chemical> 3,7-dihydro-1-methyl-3-(2-methylpropyl)-1h-purine-2,6-dione. A potent cyclic nucleotide phosphodiesterase inhibitor; due to this action, the compound increases cyclic AMP and cyclic GMP in tissue and thereby activates cyclic nucleotide-dependent protein kinases. Pharmacological action: phosphodiesterase inhibitors. Chemical name: 1H-Purine-2,6-dione, 3,7-dihydro-1-methyl-3-(2-methylpropyl)- (12 Dec 1998) |