| tryptophan 2,3-dioxygenase | An oxidoreductase catalyzing the reaction of l-tryptophan and O2 to produce l-N-formylkynurenine; an adaptive enzyme, the level (in the liver) being controlled by adrenal hormones; a step in tryptophan catabolism; also, a step in the synthesis of NAD+ from tryptophan. Synonym: pyrrolase, tryptophan oxygenase, tryptophan pyrrolase, tryptophanase. (05 Mar 2000) |
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| 2,2',3-trihydroxybiphenyl dioxygenase | <enzyme> Key enzyme in the degradation pathways of dibenzo-p-dioxin and dibenzofuran; responsible for meta cleavage of the first aromatic ring Registry number: EC 1.13.11.- Synonym: 2,2',3-thbp dioxygenase (26 Jun 1999) |
| 2,3-dihydroxy-4-cumate-3,4-dioxygenase | <enzyme> Meta-cleavage enzyme involved in bacterial degradation of p-cymene; forms 3-carboxy-2-hydroxy-7-methyl-6-oxo-octa-2,3-dienoic acid from p-cymene; also acts on 2,3-dihydroxybenzoate, 3-methylcatechol, 3-isopropylcatechol and 2,3-dihydroxy-p-toluate; enzyme c of p-cumate catabolic pathway in pseudomonas putida Registry number: EC 1.13.11.- Synonym: 2,3-dihydroxy-p-cumate-3,4-dioxygenase, dhcumate dioxygenase, cmtc gene product (26 Jun 1999) |
| 2,4-dichlorophenoxyacetate-alpha-ketoglutarate dioxygenase | <enzyme> Encoded by the tfda gene of plasmide pjp4; an fe(ii)-dependent enzyme that catalyses the conversion of 2,4-dichlorophenoxyacetate to 2,4-dichlorophenol and glyoxylate concomitant with the deomposition of alpha-ketoglutarate to succinate and co2 Registry number: EC 1.14.11.- Synonym: 2,4-d-kdg (26 Jun 1999) |
| 2,4-dinitrotoluene dioxygenase | <enzyme> Catalyses the initial oxidation of dnt to form 4-methyl-5-nitrocatechol and nitrile; genbank u62430 Registry number: EC 1.14.12.- Synonym: dnt dioxygenase (26 Jun 1999) |
| 2-aminophenol 1,6-dioxygenase | <enzyme> From pseudomonas growing on 2-aminophenol; catalyses the oxidation of 2-aminophenol to 2-aminomuconic-6-saemialdehyde; made up of 2 subunits, alpha subunit (amna encoded) and beta subunit (amnb encoded); mw 140 kD (native enzyme); genbank d89855 Registry number: EC 1.13.- (26 Jun 1999) |
| 2-nitropropane dioxygenase | <enzyme> Converts 2 moles 2-nitropropane to 2 moles acetone Registry number: EC 1.13.11.- (26 Jun 1999) |
| 2-nitrotoluene dioxygenase | <enzyme> Catalyses conversion of 2-nitrotoluene to 3-methylcatechol and nitrite; isolated from pseudomonas; genbank u49504 Registry number: EC 1.14.12.- Synonym: 2nt dioxygenase (26 Jun 1999) |
| 2-oxo-1,2-dihydroquinoline 5,6-dioxygenase | <enzyme> An aromatic ring dioxygenase; catalyses the conversion of 2-oxo-1,2-dihydroquinoline to 5,6-dihydro-5,6-dihydroxy-2-oxo-1,2-dihydroquinoline; mw 260 kD Registry number: EC 1.14.12.- Synonym: 2-oxo-1,2-dihydroquinoline NADH - oxygen 5,6-oxidoreductase (5,6-hydroxylating), odhq dioxygenase (26 Jun 1999) |
| 3,4-dihydroxyxanthone dioxygenase | <enzyme> Forms 4-hydroxy-3-(2'-oxo-3-trans-butenoate)coumarin Registry number: EC 1.13.11.- Synonym: 3,4-dhx dioxygenase (26 Jun 1999) |
| 3,5-dichlorocatechol 1,2-dioxygenase | <enzyme> A nonheme iron dioxygenase involved in biodegradation of the herbicide 2,4-dichlorophenoxyacetic acid; forms 2,4-dichloro-cis,cis-muconic acid Registry number: EC 1.13.11.- (26 Jun 1999) |
| 3-carboxyethylcatechol 2,3-dioxygenase | <enzyme> Catalyses the conversion of 2,3-dihydroxyphenylpropionate to 2-hydroxy-6-oxonona-2,4-diene-1,9-dicarboxylate Registry number: EC 1.13.11.16 Synonym: dhpp 1,2-dioxygenase, 2,3-dihydroxyphenylpropionate 1,2-dioxygenase, mhpb gene product (26 Jun 1999) |
| 3-chlorobenzoate-3,4-(4,5)-dioxygenase | <enzyme> Introduces two oxygens at either the 3 and 4 positions or the 4 and 5 positions of 3-chlorobenzate to give respective cyclohexadiene products Registry number: EC 1.14.- Synonym: cba dioxygenase (26 Jun 1999) |
| 3-hydroxyanthranilate 3,4-dioxygenase | <enzyme> Chemical name: 3-hydroxyanthranilic acid oxygenase Registry number: EC 1.13.11.6 Synonym: 3-hydroxyanthranilic acid oxygenase, 3-haa oxygenase (26 Jun 1999) |
| 3-isopropylcatechol 2,3-dioxygenase | <enzyme> Isolated from rhodococcus erythropolis; genbank u24277 Registry number: EC 1.- Synonym: ipbc gene product, 3-ipc 2,3-dioxygenase (26 Jun 1999) |