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Your query returned 11 entries. 
Printable version
| EC | 1.3.99.2 | ||||||
| Transferred entry: | butyryl-CoA dehydrogenase. Now EC 1.3.8.1, butyryl-CoA dehydrogenase. | ||||||
| EC | 1.3.99.20 | ||||||
| Transferred entry: | EC 1.3.99.20, 4-hydroxybenzoyl-CoA reductase. Now EC 1.3.7.9, 4-hydroxybenzoyl-CoA reductase. | ||||||
| EC | 1.3.99.21 | ||||||
| Transferred entry: | (R)-benzylsuccinyl-CoA dehydrogenase. Now EC 1.3.8.3, (R)-benzylsuccinyl-CoA dehydrogenase | ||||||
| EC | 1.3.99.22 | ||||||
| Transferred entry: | coproporphyrinogen dehydrogenase. Now EC 1.3.98.3, coproporphyrinogen dehydrogenase | ||||||
| EC | 1.3.99.23 | ||||||
| Accepted name: | all-trans-retinol 13,14-reductase | ||||||
| Reaction: | all-trans-13,14-dihydroretinol + acceptor = all-trans-retinol + reduced acceptor | ||||||
| For diagram of biosynthesis of retinal and derivatives, click here | |||||||
| Other name(s): | retinol saturase; RetSat; (13,14)-all-trans-retinol saturase; all-trans-retinol:all-trans-13,14-dihydroretinol saturase | ||||||
| Systematic name: | all-trans-13,14-dihydroretinol:acceptor 13,14-oxidoreductase | ||||||
| Comments: | The reaction is only known to occur in the opposite direction to that given above, with the enzyme being specific for all-trans-retinol as substrate. Neither all-trans-retinoic acid nor 9-cis, 11-cis or 13-cis-retinol isomers are substrates. May play a role in the metabolism of vitamin A. | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 879291-21-1 | ||||||
| References: |
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| EC | 1.3.99.24 | ||||||
| Transferred entry: | 2-amino-4-deoxychorismate dehydrogenase. Now EC 1.3.8.16, 2-amino-4-deoxychorismate dehydrogenase | ||||||
| EC | 1.3.99.25 | ||||||
| Accepted name: | carvone reductase | ||||||
| Reaction: | (1) (+)-dihydrocarvone + acceptor = (–)-carvone + reduced acceptor (2) (–)-isodihydrocarvone + acceptor = (+)-carvone + reduced acceptor |
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| For diagram of (–)-carvone catabolism, click here | |||||||
| Glossary: | (+)-dihydrocarvone = (1S,4R)-menth-8-en-2-one (+)-isodihydrocarvone = (1S,4R)-menth-8-en-2-one (–)-carvone = (4R)-mentha-1(6),8-dien-6-one = (5R)-2-methyl-5-(prop-1-en-2-yl)cyclohex-2-en-1-one |
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| Systematic name: | (+)-dihydrocarvone:acceptor 1,6-oxidoreductase | ||||||
| Comments: | This enzyme participates in the carveol and dihydrocarveol degradation pathway of the Gram-positive bacterium Rhodococcus erythropolis DCL14. The enzyme has not been purified, and requires an unknown cofactor, which is different from NAD+, NADP+ or a flavin. | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||
| References: |
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| EC | 1.3.99.26 | ||||||
| Accepted name: | all-trans-ζ-carotene desaturase | ||||||
| Reaction: | all-trans-ζ-carotene + 2 acceptor = all-trans-lycopene + 2 reduced acceptor (overall reaction) (1a) all-trans-ζ-carotene + acceptor = all-trans-neurosporene + reduced acceptor (1b) all-trans-neurosporene + acceptor = all-trans-lycopene + reduced acceptor |
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| For diagram of carotenoid biosynthesis, click here | |||||||
| Other name(s): | CrtIb; phytoene desaturase (ambiguous); 2-step phytoene desaturase (ambiguous); two-step phytoene desaturase (ambiguous); CrtI (ambiguous) | ||||||
| Systematic name: | all-trans-ζ-carotene:acceptor oxidoreductase | ||||||
| Comments: | This enzyme is involved in carotenoid biosynthesis. | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||
| References: |
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| EC | 1.3.99.27 | ||||||
| Accepted name: | 1-hydroxycarotenoid 3,4-desaturase | ||||||
| Reaction: | 1-hydroxy-1,2-dihydrolycopene + acceptor = 1-hydroxy-3,4-didehydro-1,2-dihydrolycopene + reduced acceptor | ||||||
| Other name(s): | CrtD; hydroxyneurosporene desaturase; carotenoid 3,4-dehydrogenase; 1-hydroxy-carotenoid 3,4-dehydrogenase | ||||||
| Systematic name: | 1-hydroxy-1,2-dihydrolycopene:acceptor oxidoreductase | ||||||
| Comments: | The enzymes from Rubrivivax gelatinosus and Rhodobacter sphaeroides prefer the acyclic carotenoids (e.g. 1-hydroxy-1,2-dihydroneurosporene, 1-hydroxy-1,2-dihydrolycopene) as substrates. The conversion rate for the 3,4-desaturation of the monocyclic 1′-hydroxy-1′,2′-dihydro-γ-carotene is lower [2,3]. The enzyme from the marine bacterium strain P99-3 shows high activity with the monocyclic carotenoid 1′-hydroxy-1′,2′-dihydro-γ-carotene [1]. The enzyme from Rhodobacter sphaeroides utilizes molecular oxygen as the electron acceptor in vitro [3]. However, oxygen is unlikely to be the natural electron acceptor under anaerobic conditions. | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB | ||||||
| References: |
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| EC | 1.3.99.28 | ||||||
| Accepted name: | phytoene desaturase (neurosporene-forming) | ||||||
| Reaction: | 15-cis-phytoene + 3 acceptor = all-trans-neurosporene + 3 reduced acceptor (overall reaction) (1a) 15-cis-phytoene + acceptor = all-trans-phytofluene + reduced acceptor (1b) all-trans-phytofluene + acceptor = all-trans-ζ-carotene + reduced acceptor (1c) all-trans-ζ-carotene + acceptor = all-trans-neurosporene + reduced acceptor |
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| For diagram of carotenoid biosynthesis, click here | |||||||
| Other name(s): | 3-step phytoene desaturase; three-step phytoene desaturase; phytoene desaturase (ambiguous); CrtI (ambiguous) | ||||||
| Systematic name: | 15-cis-phytoene:acceptor oxidoreductase (neurosporene-forming) | ||||||
| Comments: | This enzyme is involved in carotenoid biosynthesis and catalyses up to three desaturation steps (cf. EC 1.3.99.29 [phytoene desaturase (ζ-carotene-forming)], EC 1.3.99.30 [phytoene desaturase (3,4-didehydrolycopene-forming)], EC 1.3.99.31 [phytoene desaturase (lycopene-forming)]). The enzyme is activated by FAD. NAD+, NADP+ or ATP show no activating effect [1]. | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||
| References: |
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| EC | 1.3.99.29 | ||||||
| Accepted name: | phytoene desaturase (ζ-carotene-forming) | ||||||
| Reaction: | 15-cis-phytoene + 2 acceptor = all-trans-ζ-carotene + 2 reduced acceptor (overall reaction) (1a) 15-cis-phytoene + acceptor = all-trans-phytofluene + reduced acceptor (1b) all-trans-phytofluene + acceptor = all-trans-ζ-carotene + reduced acceptor |
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| For diagram of carotenoid biosynthesis, click here | |||||||
| Other name(s): | CrtIa; 2-step phytoene desaturase (ambiguous); two-step phytoene desaturase (ambiguous) | ||||||
| Systematic name: | 15-cis-phytoene:acceptor oxidoreductase (ζ-carotene-forming) | ||||||
| Comments: | The enzyme is involved in carotenoid biosynthesis and catalyses up to two desaturation steps (cf. EC 1.3.99.28 [phytoene desaturase (neurosporene-forming)], EC 1.3.99.30 [phytoene desaturase (3,4-didehydrolycopene-forming)] and EC 1.3.99.31 [phytoene desaturase (lycopene-forming)]). | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||
| References: |
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