| L-3,4-dihydroxy-2-butanone-4-phosphate synthase | <enzyme> Catalyses the conversion of d-ribulose 5-phosphate to l-3,4-dihydroxy-2-butanone-4-phosphate plus formate derived from carbon 4 of ribulose 5-p Registry number: EC 5.4.- Synonym: dbp synthase (26 Jun 1999) |
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| 1,3-beta-glucan synthase | <enzyme> Amino acid sequence given in second source; genbank u09275 Registry number: EC 2.4.1.34 Synonym: chrysolaminarin synthase, udp glucuose beta(1--3)glucan-beta-3-glucosyltransferase, callose synthase, glucan synthase 1 gene product (26 Jun 1999) |
| 16S RNA pseudouridine 516 synthase | <enzyme> Acts only on uridine 516 of e. Coli 16s RNA; amino acid sequence given in first source Registry number: EC 5.4.99.- Synonym: psi516 synthase, rsua gene product (26 Jun 1999) |
| 1-aminocyclopropanecarboxylate synthase | <enzyme> Pyridoxal phosphate-dependent Chemical name: s-adenosylmethionine methylthioadenosine-lyase (alpha, gamma-eliminating) Registry number: EC 4.4.1.14 Synonym: acpca synthase, 1-aminocyclopropane-1-carboxylate synthase, acc-synthase (26 Jun 1999) |
| 2-deoxy-scyllo-inosose synthase | <enzyme> Responsible for the formation of 2-deoxy-scyllo-inosose from d-glucose; exhibits close similarity to dehydroquinate synthase; not clear whether it catalyses only the oxidoreduction of c-4 and/or the intramolecular cyclization between c-1 and c-6 Registry number: EC 4.99.- Synonym: 2-deoxy-scyllo-inosose synthetase (26 Jun 1999) |
| 2-hydroxy-3-oxoadipate synthase | <enzyme> Deficient in hyperoxaluria type i Registry number: EC 4.1.3.15 Synonym: 2-ketoglutarate-glyoxylate carboligase, glyoxylate-oxoglutarate carboligase, delta-hydroxylaevulinate synthase, 2-oxoglutarate-glyoxylate carboligase, 2-hydroxy-3-oxoadipate carboxylase (26 Jun 1999) |
| 2-isopropylmalate synthase | <enzyme> An enzyme that catalyses the first step in the biosynthetic pathway to leucine, forming isopropyl malate from acetyl-CoA and alpha-ketoisovaleric acid. Chemical name: 3-Carboxy-3-hydroxy-4-methylpentanoate 3-methyl-2-oxobutanoate-lyase (CoA-acetylating) Registry number: EC 4.1.3.12 (12 Dec 1998) |
| 2-phosphinomethylmalic acid synthase | <enzyme> From streptomyces hygroscopicus; catalyses the condensation of phosphinopyruvic acid and acetyl-CoA to form phosphinomethylmalic acid Registry number: EC 4.1.3.- Synonym: pmm synthase (26 Jun 1999) |
| 2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase | <enzyme> E coli enzyme; catalyses formation of 2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate from 2-ketoglutarate and isochorismate; requires thiamine pyrophosphate and liberates pyruvate from the isochorismate molecule; see also o-succinylbenzoate synthase Registry number: EC 4.1.3.- Synonym: shchc synthase (26 Jun 1999) |
| 3-(2,4--dioxo-6-methyl-5-pyrimidinyl)acrylic acid synthase | <enzyme> Involved in sparsomycin biosynthesis; catalyses conversion of 3-(4-oxo-6-methyl-5-pyrimidinyl)acrylic acid to 3-(2,4-dioxo-6-methyl-5-pyrimidinyl)acrylic acid Registry number: EC 1.14.13.- Synonym: (e)-uca synthase (26 Jun 1999) |
| lactose synthase | <enzyme> An enzyme of the transferase class that catalyses the transfer of galactose from udpgalactose to glucose, forming lactose. The enzyme is a complex of the enzyme n-acetyllactosamine synthase and alpha-lactalbumin; the latter protein is present in lactating mammary gland cells where it alters the usual specificity of the former to make lactose synthesis the preferred reaction. Chemical name: UDPgalactose:D-glucose 4-beta-D-galactosyltransferase Registry number: EC 2.4.1.22 (12 Dec 1998) |
| 3-oxoacyl-ACP synthase | <enzyme> An enzyme condensing malonyl-ACP and acyl-cys-protein to 3-oxoacyl-ACP + cys-protein + CO2, and similar reactions, as steps in fatty acid synthesis; cys-protein is also a part of the fatty acid synthase complex. Synonym: acyl-malonyl-ACP synthase, beta-ketoacyl-ACP synthase. (05 Mar 2000) |
| 3-oxoacyl-(acyl-carrier-protein) synthase | <enzyme> An enzyme of long-chain fatty acid synthesis, that adds a two-carbon unit from malonyl-(acyl carrier protein) to another molecule of fatty acyl-(acyl carrier protein), giving a beta-ketoacyl-(acyl carrier protein) with the release of carbon dioxide. Chemical name: Acyl-(acyl carrier protein):malonyl-(acyl-carrier-protein) C-acyltransferase (decarboxylating) Registry number: EC 2.3.1.41 (12 Dec 1998) |
| 4-hydroxybenzoate synthase | <chemical> Complex associated with mitochondrial membranes of roots of cucumis sativus; converts p-coumaric acid to p-hydroxybenzoic acid; mechanism of multi-step reaction unclear Chemical name: synthase, p-hydroxybenzoate Synonym: para-hydroxybenzoate synthase, p-hydroxybenzoate synthase (26 Jun 1999) |
| 5-epi-aristolochene synthase | <enzyme> From tobacco; converts farnesyl diphosphate to phyloalexin capsidiol; mw 56,828 kD; a sesquiterpene cyclase Registry number: EC 2.5.1.- (26 Jun 1999) |