| indole-3-glycerol-phosphate synthase | <enzyme> An enzyme in the tryptophan biosynthetic pathway. Chemical name: 1-(2-Carboxyphenylamino)-1-deoxy-D-ribulose-5-phosphate carboxy-lyase (cyclizing) Registry number: EC 4.1.1.48 (12 Dec 1998) |
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| isoflavone synthase | <enzyme> Microsomal enzyme from soybeans; converts (2s)-naringenin to genistein and converts (2s)-5,4'-dihydroxflavanone to daidzein; requires NADPH and oxygen; may be a cytochrome p-450-dependent monooxygenase Registry number: EC 1.14.13.- Synonym: genistein synthase, naringenin monooxygenase, NADPH-2'-hydroxydaidzein oxidoreductase (26 Jun 1999) |
| isomaltulose synthase | <enzyme> From erwinia rhapontici; forms isomaltulose and trehalulose from sucrose by intramolecular transglycosylation; formerly EC 5.4.99.10 Registry number: EC 5.4.99.11 (26 Jun 1999) |
| isoprene synthase | <enzyme> Catalyses the elimination of pyrophosphate from dimethylallyl diphosphate to form isoprene; requires magnesium or mn2+; responsible for leaf isoprene emission into the atmosphere; from aspen leaves; partial amino acid sequence given in first source Registry number: EC 2.5.1.- (26 Jun 1999) |
| oligo-isomaltosaccharide synthase | <enzyme> Catalyses the formation of alpha-1,6-linked linear oligosaccharides from sucrose; isolated from streptococcus sobrinus Registry number: EC 2.4.1.- Synonym: gtf-s gene product, rgtf-s(3), glucosyltransferase s, glucosyltransferase-s, gtfd gene product (26 Jun 1999) |
| o-succinylbenzoic acid synthase | <enzyme> E coli enzyme; with shchc synthase catalyses formation of o-succinylbenzoic acid from isochorismic acid and alpha-ketoglutarate in presence of thiamine pyropyrophosphate; succinic saemialdehyde anion is formed by decarboxylation of alpha-ketoglutarate by thiamine pyrophosphate; anion then attacks isochorismic acid, initiating aromatization with elimination of pyruvate and h2o Registry number: EC 4.1.99.- Synonym: ortho-succinylbenzoic acid synthase, osb synthase, 2-succinylbenzoic acid synthase (26 Jun 1999) |
| taxa-4(5),11(12)-diene synthase | <enzyme> Catalyses the cyclization of geranylgeranyl pyrophosphate to taxa-4(5),11(12)-diene, the first step to taxol biosynthesis Registry number: EC 5.- Synonym: taxadiene synthase, taxadiene cyclase (26 Jun 1999) |
| terpene synthase | <enzyme> Acts on dimethylallyl pyrophosphate (pp), geranyl pp, farnesyl pp and geranylgeranyl pp to generate a wide range of terpenoids; genbank y11188 Registry number: EC 2.5.1.- Synonym: ts1 protein, plant, atts1 gene product, (26 Jun 1999) |
| thromboxane-a synthase | <enzyme> An enzyme found predominantly in platelet microsomes. It catalyses the conversion of pgg(2) and pgh(2) (prostaglandin endoperoxides) to thromboxane a2. Chemical name: (5Z,13E)-(15S)-9alpha,11alpha-Epidioxy-15-hydroxyprosta-5,13-dienoate thromboxane-A(2)-isomerase Registry number: EC 5.3.99.5 (12 Dec 1998) |
| thymidylate synthase | <enzyme> An enzyme of the transferase class that catalyses the reaction 5,10-methylenetetrahydrofolate and dump to dihydrofolate and dtmp in the synthesis of thymidine triphosphate. Chemical name: 5,10-Methylenetetrahydrofolate:dUMP C-methyltransferase Registry number: EC 2.1.1.45 (12 Dec 1998) |
| thymidylate synthase-dihydrofolate reductase | <chemical> Bifunctional multienzyme complex purified from leishmania major Synonym: ts-dhfr, dhfr-ts (26 Jun 1999) |
| ectoine synthase | <enzyme> Catalyses cyclic condensation of n(gamma)-l-2,4-diaminobutyric acid to yield l-ectoine Registry number: EC 4.2.1.- Synonym: ectc gene product (26 Jun 1999) |
| endothelium-derived growth factor synthase | <enzyme> Converts l-arginine to a smooth muscle relaxing factor and stimulates the formation of cyclic-GMP Registry number: EC 1.5.1.- Synonym: edrf synthase (26 Jun 1999) |
| trehalose synthase | <enzyme> Catalyses the conversion of maltose into alpha,alpha-trehalose by intramolecular transglucosylation; mw about 62 kD; genbank d78198 Registry number: EC 2.4.1.- Synonym: tres gene product, tres enzyme (26 Jun 1999) |
| tRNA 2-selenouridine synthase | <enzyme> Catalyses the conversion of a 5-methylaminomethyl-2-thiouridine in trna to 5-methylaminomethyl-2-selenouridine Registry number: EC 2.8.1.- (26 Jun 1999) |