| 4-coumaroyl-coenzyme A 3-hydroxylase | <enzyme> Catalyses the formation of trans-caffeoyl-CoA from trans-4-coumaroyl-CoA; requires ascorbic acid and zinc Registry number: EC 1.14.17.- Synonym: 4-coumaroyl-CoA 3-hydroxylase (26 Jun 1999) |
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| 4-coumaroyl-D-glucose hydroxylase | <enzyme> From sweet potato roots (ipomoea batatas); catalyses the conversion of p-coumaroyl-d-glucose to caffeoyl-d-glucose for chlorogenic acid biosynthesis in the presence of ascorbic acid; mw 33 kD; has weak polyphenol oxidase activity; also hydroxylates p-coumaric acid Registry number: EC 1.14.17.- Synonym: p-coumaroyl-d-glucose hydroxylase, cdg hydroxylase (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) |
| 4-ethylphenol methylenehydroxylase | <enzyme> Flavocytochrome from pseudomonas putida jd1; will hydroxylate p-cresol but is more active with alkylphenols with long chain acyl groups Registry number: EC 1.17.99.- Synonym: 4epmh (26 Jun 1999) |
| 4-halobenzoate-CoA ligase | <enzyme> Involved in conversion of 4-chlorobenzoate to 4-hydroxybenzoate by pseudomonas sp. Cbs3; 115 kD; acts on 4-chloro-, 4-bromo-, 4-iodobenzoate most effectively; 16 n-terminal amino acid sequence determined, with 3 questions, in first source Registry number: EC 6.2.1.- Synonym: 4-chlorobenzoate-CoA ligase, 4-cba-CoA ligase, 4-chlorobenzoate-coenzyme a ligase (26 Jun 1999) |
| 4-homosulfanilamide | <chemical> 4-(aminomethyl)benzenesulfonamide. A sulfonamide that inhibits the enzyme carbonic anhydrase and is used as topical anti-infective, especially in burn therapy. Pharmacological action: anti-infective agents, local, carbonic anhydrase inhibitors. Chemical name: Benzenesulfonamide, 4-(aminomethyl)- (12 Dec 1998) |
| 4-hydroxy-2-ketopimelate aldolase | <enzyme> Bacterial enzyme functioning in pathways of aromatic catabolism; forms pyruvate and succinic saemialdehyde Registry number: EC 4.1.3.- (26 Jun 1999) |
| 4-hydroxy-2-ketovalerate aldolase | <enzyme> Forms acetaldehyde + pyruvate; catalyses conversion of 4-hydroxy-2-ketovalerate to pyruvate Registry number: EC 4.1.3.- (26 Jun 1999) |
| 4-hydroxy-2-oxovalerate aldolase | <enzyme> Forms pyruvate + acetaldehyde; enzyme g of p-cumate catabolic pathway in pseudomonas putida Registry number: EC 4.1.3.- Synonym: nahm gene product, cmtg gene product (26 Jun 1999) |
| 4-hydroxy-5-polyprenylbenzoate hydroxylase | <enzyme> Involved in ubiquinone biosynthesis Registry number: EC 1.14.13.- Synonym: 4-oh-5-ppb hydroxylase (26 Jun 1999) |
| 4-hydroxyaminoquinoline-1-oxide | <chemical> N-hydroxy-4-quinolineamine 1-oxide. A potent mutagen and carcinogen. It is a reduction product of 4-nitroquinoline-1-oxide. It binds with nucleic acids and inactivates both bacteria and bacteriophage. Pharmacological action: carcinogens, mutagens. Chemical name: 4-Quinolinamine, N-hydroxy-, 1-oxide (12 Dec 1998) |
| 4-hydroxybenzaldehyde dehydrogenase | <enzyme> Catalyses p-hydroxybenzaldehyde to p-hydroxybenzoate in the presence of nadp+; used in catabolic pathway in pseudomonas mendocina kr1 Registry number: EC 1.2.1.- Synonym: pba-dehydrogenase (26 Jun 1999) |
| 4-hydroxybenzoate coenzyme A ligase | <enzyme> From rhodopseudomonas palustris; involved in anaerobic metabolism of 4-hydroxybenzoate Registry number: EC 6.2.1.- Synonym: 4-hydroxybenzoate-CoA ligase, 4-hb-CoA ligase (26 Jun 1999) |
| 4-hydroxybenzoate decarboxylase | <enzyme> Aromatic-dependent decarboxylase which provides growth-essential co2 equivalents for the acetogenic (wood) pathway of clostridium thermoaceticum Registry number: EC 4.1.1.- Synonym: phenol carboxylase (26 Jun 1999) |
| 4-hydroxybenzoate polyprenyltransferase | <enzyme> An intermediate in ubiquinone biosynthesis Registry number: EC 2.5.1.- Synonym: 4-hydroxybenzoate octaprenyltransferase, polyprenyl pyrophosphate-p-hydroxybenzoate polyprenyltransferase, para-hydroxybenzoate polyprenyltransferase, 4-ohb-pp-transferase, ubia gene product (26 Jun 1999) |