| delta 14-sterol reductase | <enzyme> Reduces ignosterol to ergosterol; NADPH-dependent enzyme that catalyses the formal trans addition of hydrogen across the 14,15-pi bond in 8,14-sterol dienes; forms 4,4-dimethylzymosterol in lanosterol metabolism pathway from 4,4-dimethyl-5alpha-cholesta-8,14,25-trien-3beta-ol or from 4,4-dimethyl-cholesta-8,14,24-trienol; erg24 from saccharomyces cerevisiae Registry number: EC 1.3.1.- Synonym: ignosterol reductase, delta 8,14-sterol delta 14-reductase, 14,15-sterol reductase, delta 8,14-steroid 14-reductase, delta 14,15-reductase, sterol c-14 reductase, c-14 sterol reductase, erg24 gene product (26 Jun 1999) |
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| delta-22 sterol desaturase | <enzyme> Catalyses the formation of the sterol side delta-22-double bond from 23-hydroxysterols Registry number: EC 1.3.3.- Synonym: c-22 sterol desaturase, cyp61, cytochrome p-45061, sterol delta22-desaturase (26 Jun 1999) |
| delta 24-sterol methyltransferase | <enzyme> Substrate sterols may be replaced by specific sterol Registry number: EC 2.1.1.41 Synonym: s-adenosylmethionine zymosterol methyltransferase, s-adenosylmethionine-delta 24-sterol-c-methyltransferase, sterol c-24 s-adenosylmethionine methyltransferase, sed6 protein, erg6 protein, (s)-adenosyl-l-methionine-delta 24(25)-sterol methyltransferase (26 Jun 1999) |
| delta 5,7-sterol delta-7-reductase | <enzyme> Involved in cholesterol biosynthesis, introduces the delta-5 bond into delta 7-cholestenol to form 7-dehydrocholesterol Registry number: EC 1.3.1.- Synonym: delta 7-sterol reductase, delta 7-sterol desaturase, delta 7-sterol 5-desaturase (26 Jun 1999) |
| delta(8)-delta(7)-sterol isomerase | <enzyme> Catalyses anaerobic conversion of sterol-8-ene to sterol-7-ene; do not confuse with erg-2 protein from retroviridae Registry number: EC 5.3.3.- Synonym: delta 8 - delta 7 sterol isomerase, c-8 sterol isomerase, erg2 gene product, fungal, sterol 8-isomerase (26 Jun 1999) |
| 4-methyl sterol demethylase | <chemical> This term is used to describe 10 reactions in the collective processes of monooxygenation, decarboxylation and reduction, which, together account for the conversion of each of the two 4-methyl groups of lanosterol to carbon dioxide Chemical name: demethylase, methyl sterol Synonym: 4,4-dimethylzymosterol monooxygenase, sterol 4-demethylase (26 Jun 1999) |
| acetaldehyde oxidase | <enzyme> Acetaldehyde is converted to acetate Registry number: EC 1.2.- (26 Jun 1999) |
| acyl-CoA oxidase | <enzyme> Catalyses stoichiometric conversion of palmitoyl-CoA and o2 into 2-hexadecenoyl-CoA and h2o2; oxidises acyl-CoA's with carbon chain lengths of 4 to 20; most active toward lauroyl-CoA, but not acetyl- or succinyl-CoA Registry number: EC 1.3.3.6 Synonym: fatty acyl CoA oxidase, fatty acyl-coenzyme a oxidase, fatty acid acyl-CoA oxidase, acox, pox1 gene product (26 Jun 1999) |
| adrenaline oxidase | amine oxidase (flavin-containing) |
| aldehyde oxidase | <enzyme> Broad substrate specificity Registry number: EC 1.2.3.1 Synonym: n1-methylnicotinamide oxidase I, n-nitrosoreductase (26 Jun 1999) |
| alternative oxidase | <enzyme> The terminal oxidase in alternative pathway respiration, as seen in plants like sauromatum guttatum (voodoo lily); amino acid sequence for tobacco alternative oxidase (aox1) in first source Registry number: EC 1.- Synonym: aox1 gene product, aox2 gene product, aox3 gene product (26 Jun 1999) |
| alternative oxidase pathway | Pathway of mitochondrial electron transport in higher plants, particularly in fruits and seeds, that does not involve cytochrome oxidase and thus is resistant to cyanide. (18 Nov 1997) |
| amine oxidase | <enzyme> A group of enzymes including those oxidizing primary monoamines, diamines, and histamine. They are copper proteins, and, as their action depends on a carbonyl group, they are sensitive to inhibition by saemicarbazide. Chemical name: Amine:oxygen oxidoreductase (deaminating)(copper-containing) Registry number: EC 1.4.3.6 (12 Dec 1998) |
| amine oxidase (copper-containing) | An oxidoreductase containing copper, and perhaps pyridoxal phosphate, and carrying out the same reaction as amine oxidase (flavin-containing). Synonym: amine oxidase (pyridoxal-containing), diamine oxidase, diamino oxyhydrase, histaminase. (05 Mar 2000) |
| amine oxidase (flavin-containing) | An oxidoreductase containing flavin and oxidizing amines with the aid of O2 and water to aldehydes or ketones with the release of NH3 and H2O2. Acted upon by antidepressants. Synonym: adrenaline oxidase, diamine oxidase, monoamine oxidase, tyraminase, tyramine oxidase. (05 Mar 2000) |