| dodecenoyl-coenzyme A delta-isomerase | <enzyme> An auxiliary enzyme for the beta-oxidation of unsaturated fatty acids; converts both cis and trans delta(3)-enoyl CoA esters to their trans-2-counterparts Registry number: EC 5.3.3.8 Synonym: enoyl-CoA isomerase, dodecenoyl-CoA delta-isomerase, 3-cis-2-trans-enoyl-CoA isomerase, delta(3), delta(2)-enoyl-CoA isomerase (26 Jun 1999) |
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| i-cholesterol isomerase | <enzyme> 7-hydroxy group is isomerised to position 3 on ring a to form cholesterol Registry number: EC 5.4.99.- (26 Jun 1999) |
| quinone methide isomerase | <enzyme> From insect cuticle; converts 4-alkyl catechols to quinone methides Registry number: EC 5.3.2.- Synonym: o-quinone-quinone methide isomerase, 4-alkyl-o-quinone-2-hydroxy-4-quinone methide isomerase (26 Jun 1999) |
| isopiperitenone delta-isomerase | <enzyme> From peppermint; intramolecular 1,3-hydrogen transfer forms piperitenone Registry number: EC 5.3.3.11 Synonym: isopiperitenone isomerase (26 Jun 1999) |
| isopropylmalate isomerase | <enzyme> Converts alpha-isopropylmalate to beta-isopropylmalate via dimethylcitraconic acid; wild type from s typhimurium composed of two subunits; specific for leucine biosynthesis Registry number: EC 5.- Synonym: leua gene product (26 Jun 1999) |
| ecdysone dehydrogenase-isomerase | <enzyme> Converts alpha-ecdysone to less active 3-epiecdysone, using NADP Registry number: EC 1.1.1.- (26 Jun 1999) |
| enoyl-CoA hydratase - 3-hydroxyacyl-CoA dehydrogenase - dodecanoyl-coenzyme A delta-isomerase | <chemical> Catalyses the second and third reactions of the fatty acid beta-oxidation cycle, converting enoyl-CoA to 3-ketoacyl-CoA; EC 4.2.1.17 and EC 1.1.1.35 and EC 5.3.3.8; consider also multifunctional protein-a Synonym: peroxisomal bifunctional enzyme, enoyl-coenzyme a hydratase -- 3-hydroxyacyl-coenzyme a dehydrogenase, peroxisomal trifunctional enzyme, delta(3), delta(2)-enoyl-CoA isomerase--2-enoyl-CoA hydratase--3-hydroxyacyl-CoA dehydrogenase (26 Jun 1999) |
| triosephosphate isomerase | <biochemistry, enzyme> An isomerizing enzyme that during glycolysis, catalyses the reversible interconversion of d-glyceraldehyde 3-phosphate to dihydroxyacetone phosphate and viceversa. A reaction of importance in glycolysis and gluconeogenesis. A deficiency in humans causes congenital nonspherocytic haemolytic anaemia and severe neurological deficits. Synonym: phosphotriose isomerase. Chemical name: D-Glyceraldehyde-3-phosphate ketol isomerase Registry number: EC 5.3.1.1 (12 Dec 1998) |
| epoxypropane isomerase | <enzyme> Enzyme from xanthobacter py2 has 2 components, one with nad+dependent dihydrolipoamide dehydrogenase and lipoamide reductase activity; amino acid sequence has been determined Registry number: EC 5.3.99.- Synonym: epoxypropane isomerase-carboxylase (26 Jun 1999) |
| 2-hydroxychromene-2-carboxylate isomerase | <enzyme> Catalyses the conversion of 2-hydroxychromene-2-carboxylate to cis-o-hydroxybenzylidenepyruvate--a step in the bacterial degradation of naphthalene to salicylate Registry number: EC 5.3.99.- Synonym: o-hydroxychromene-2-carboxylate isomerase, hcca isomerase (26 Jun 1999) |
| 2-hydroxyhepta-2,4-diene-1,7-dioate isomerase | <enzyme> Exists as a bifunctional enzyme with 5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase (EC 4.1.1.68) in the homoprotocatechuate degradative pathway of E coli. Registry number: EC 5.3.3.- Synonym: hhdd isomerase (26 Jun 1999) |
| 3 beta-hydroxysteroid oxidoreductase-delta(5) 3-ketosteroid isomerase | <chemical> System found in breast cancers; consists of EC 1.1.1.145 (progesterone reductase) and EC 5.3.3.1 (steroid delta-isomerase)) Synonym: 3 ohsteroid dehydrogenase-isomerase, delta 5-3 beta hydroxysteroid dehydrogenase-isomerase, 3 beta-hydroxysteroid dehydrogenase-isomerase, 3 beta-hydroxysteroid dehydrogenase-delta(5)-delta(4)-isomerase, 3 beta-hydroxysteroid dehydrogenase-5--4-ene-isomerase, 3-beta-hydroxysteroid dehydrogenase-delta(5-4)-isomerase, 3 beta hydroxysteroid dehydrogenase-delta5-delta4-isomerasease, 3 beta-ol dehydrogenase-delta(4)-delta(5) isomerase, 3 beta-hydroxy-5-ene steroid dehydrogenase-delta 5-delta 4 isomerase (26 Jun 1999) |
| 3-methylitaconate delta-isomerase | <enzyme> Catalyses reversibly the isomerization of methylitaconate to dimethylmaleate Registry number: EC 5.3.3.6 Synonym: 3-midiase (26 Jun 1999) |
| 4-carboxymethyl-methylbut-2-ene-1,4-olide isomerase | <enzyme> From alcaligenes eutrophus; catalyses the formation of 3-methyl-2-ene-lactone from 4-methyl-2-ene-lactone Registry number: EC 5.4.99.- Synonym: 4-methyl-2-enelactone isomerase (26 Jun 1999) |
| 4-deoxy-L-threo-5-hexosulose-uronate ketol-isomerase | <enzyme> Converts 5-keto-4-deoxyuronate to 2,5-diketo-3-deoxygluconate Registry number: EC 5.3.1.17 Synonym: 5-keto-4-deoxyuronate isomerase (26 Jun 1999) |