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Your query returned 11 entries. 
Printable version
| EC | 1.3.99.3 | ||||||
| Transferred entry: | acyl-CoA dehydrogenase, now EC 1.3.8.7, medium-chain acyl-CoA dehydrogenase, EC 1.3.8.8, long-chain acyl-CoA dehydrogenase and EC 1.3.8.9, very-long-chain acyl-CoA dehydrogenase | ||||||
| EC | 1.3.99.30 | ||||||
| Accepted name: | phytoene desaturase (3,4-didehydrolycopene-forming) | ||||||
| Reaction: | 15-cis-phytoene + 5 acceptor = all-trans-3,4-didehydrolycopene + 5 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 (1d) all-trans-neurosporene + acceptor = all-trans-lycopene + reduced acceptor (1e) all-trans-lycopene + acceptor = all-trans-3,4-didehydrolycopene + reduced acceptor |
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| For diagram of carotenoid biosynthesis, click here | |||||||
| Other name(s): | 5-step phytoene desaturase; five-step phytoene desaturase; phytoene desaturase (ambiguous); Al-1 | ||||||
| Systematic name: | 15-cis-phytoene:acceptor oxidoreductase (3,4-didehydrolycopene-forming) | ||||||
| Comments: | This enzyme is involved in carotenoid biosynthesis and catalyses up to five desaturation steps (cf. EC 1.3.99.28 [phytoene desaturase (neurosporene-forming)], EC 1.3.99.29 [phytoene desaturase (ζ-carotene-forming)] and EC 1.3.99.31 [phytoene desaturase (lycopene-forming)]). | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||
| References: |
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| EC | 1.3.99.31 | ||||||
| Accepted name: | phytoene desaturase (lycopene-forming) | ||||||
| Reaction: | 15-cis-phytoene + 4 acceptor = all-trans-lycopene + 4 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 (1d) all-trans-neurosporene + acceptor = all-trans-lycopene + reduced acceptor |
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| For diagram of carotenoid biosynthesis, click here | |||||||
| Other name(s): | 4-step phytoene desaturase; four-step phytoene desaturase; phytoene desaturase (ambiguous); CrtI (ambiguous) | ||||||
| Systematic name: | 15-cis-phytoene:acceptor oxidoreductase (lycopene-forming) | ||||||
| Comments: | Requires FAD. The enzyme is involved in carotenoid biosynthesis and catalyses up to four desaturation steps (cf. EC 1.3.99.28 [phytoene desaturase (neurosporene-forming)], EC 1.3.99.29 [phytoene desaturase (ζ-carotene-forming)] and EC 1.3.99.30 [phytoene desaturase (3,4-didehydrolycopene-forming)]). | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB | ||||||
| References: |
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| EC | 1.3.99.32 | ||||||
| Accepted name: | glutaryl-CoA dehydrogenase (acceptor) | ||||||
| Reaction: | glutaryl-CoA + acceptor = (E)-glutaconyl-CoA + reduced acceptor | ||||||
| Glossary: | (E)-glutaconyl-CoA = (2E)-4-carboxybut-2-enoyl-CoA | ||||||
| Other name(s): | GDHDes; nondecarboxylating glutaryl-coenzyme A dehydrogenase; nondecarboxylating glutaconyl-coenzyme A-forming GDH; glutaryl-CoA dehydrogenase (non-decarboxylating) | ||||||
| Systematic name: | glutaryl-CoA:acceptor 2,3-oxidoreductase (non-decarboxylating) | ||||||
| Comments: | The enzyme contains FAD. The anaerobic, sulfate-reducing bacterium Desulfococcus multivorans contains two glutaryl-CoA dehydrogenases: a decarboxylating enzyme (EC 1.3.8.6), and a nondecarboxylating enzyme (this entry). The two enzymes cause different structural changes around the glutaconyl carboxylate group, primarily due to the presence of either a tyrosine or a valine residue, respectively, at the active site. | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB | ||||||
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| EC | 1.3.99.33 | ||||||
| Accepted name: | urocanate reductase | ||||||
| Reaction: | dihydrourocanate + acceptor = urocanate + reduced acceptor | ||||||
| For diagram of histidine catabolism, click here | |||||||
| Glossary: | urocanate = 3-(1H-imidazol-4-yl)prop-2-enoate dihydrourocanate = 3-(1H-imidazol-4-yl)propanoate |
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| Other name(s): | urdA (gene name) | ||||||
| Systematic name: | dihydrourocanate:acceptor oxidoreductase | ||||||
| Comments: | The enzyme from the bacterium Shewanella oneidensis MR-1 contains a noncovalently-bound FAD and a covalently-bound FMN. It functions as part of an anaerobic electron transfer chain that utilizes urocanate as the terminal electron acceptor. The activity has been demonstrated with the artificial donor reduced methyl viologen. | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB | ||||||
| References: |
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| EC | 1.3.99.34 | ||||||
| Transferred entry: | 2,3-bis-O-geranylgeranyl-sn-glycerol 1-phosphate reductase (donor). Now classified as EC 1.3.7.11, 2,3-bis-O-geranylgeranyl-sn-glycero-phospholipid reductase. | ||||||
| EC | 1.3.99.35 | ||||||
| Transferred entry: | chlorophyllide a reductase. Now EC 1.3.7.15, chlorophyllide a reductase | ||||||
| EC | 1.3.99.36 | ||||||
| Accepted name: | cypemycin cysteine dehydrogenase (decarboxylating) | ||||||
| Reaction: | cypemycin(1-18)-L-Cys-L-Leu-L-Val-L-Cys + acceptor = C3.19,S21-cyclocypemycin(1-18)-L-Ala-L-Leu-N-thioethenyl-L-valinamide + CO2 + H2S + reduced acceptor | ||||||
| For diagram of reaction, click here | |||||||
| Other name(s): | cypemycin decarboxylase; CypD | ||||||
| Systematic name: | cypemycin(1-18)-L-Cys-L-Leu-L-Val-L-Cys:acceptor oxidoreductase (decarboxylating, cyclizing) | ||||||
| Comments: | Cypemycin, isolated from the bacterium Streptomyces sp. OH-4156, is a peptide antibiotic, member of the linaridins, a class of posttranslationally modified ribosomally synthesized peptides. The enzyme decarboxylates and reduces the C-terminal L-cysteine residue, producing a reactive ethenethiol group that reacts with a dethiolated cysteine upstream to form an aminovinyl-methyl-cysteine loop that is important for the antibiotic activity of the mature peptide. | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc, PDB | ||||||
| References: |
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| EC | 1.3.99.37 | ||||||
| Accepted name: | 1-hydroxy-2-isopentenylcarotenoid 3,4-desaturase | ||||||
| Reaction: | (1) dihydroisopentenyldehydrorhodopin + acceptor = isopentenyldehydrorhodopin + reduced acceptor (2) dihydrobisanhydrobacterioruberin + acceptor = bisanhydrobacterioruberin + reduced acceptor |
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| For diagram of bacterioruberin biosynthesis, click here | |||||||
| Glossary: | bisanhydrobacterioruberin = (2S,2S′)-2,2′-bis(3-methylbut-2-en-1-yl)-3,4-didehydro-1,1′,2,2′-tetrahydro-ψ,ψ-carotene-1,1′-diol dihydrobisanhydrobacterioruberin = (2S,2S′)-2,2′-bis(3-methylbut-2-en-1-yl)-3,3′,4,4′-tetradehydro-1,1′,2,2′-tetrahydro-ψ,ψ-carotene-1,1′-diol dihydroisopentenyldehydrorhodopin = (2S)-2-(3-methylbut-2-en-1-yl)-3,4-didehydro-1,2-dihydro-ψ,ψ-caroten-1-ol isopentenyldehydrorhodopin = (2S)-2-(3-methylbut-2-en-1-yl)-1,2-dihydro-ψ,ψ-caroten-1-ol |
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| Other name(s): | crtD (gene name) | ||||||
| Systematic name: | dihydroisopentenyldehydrorhodopin:acceptor 3,4-oxidoreductase | ||||||
| Comments: | The enzyme, isolated from the archaeon Haloarcula japonica, is involved in the biosynthesis of the C50 carotenoid bacterioruberin. In this pathway it catalyses the desaturation of the C-3,4 double bond in dihydroisopentenyldehydrorhodopin and the desaturation of the C-3′,4′ double bond in dihydrobisanhydrobacterioruberin. | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||
| References: |
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| EC | 1.3.99.38 | ||||||
| Accepted name: | menaquinone-9 β-reductase | ||||||
| Reaction: | menaquinone-9 + reduced acceptor = β-dihydromenaquinone-9 + acceptor | ||||||
| For diagram of vitamin K biosynthesis, click here | |||||||
| Glossary: | β-dihydromenaquinone-9 = MK-9(II-H2) = 2-methyl-3-[(2E,10E,14E,18E,22E,26E,30E,33E)-3,7,11,15,19,23,27,31,35-nonamethylhexatriaconta-2,10,14,18,22,26,30,33-octaen-1-yl]naphthalene-1,4-dione | ||||||
| Other name(s): | MenJ | ||||||
| Systematic name: | menaquinone-9 oxidoreductase (β-dihydromenaquinone-9-forming) | ||||||
| Comments: | The enzyme from the bacterium Mycobacterium tuberculosis reduces the β-isoprene unit of menaquinone-9, forming the predominant form of menaquinone found in mycobacteria. Contains FAD. | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||
| References: |
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| EC | 1.3.99.39 | ||||||
| Accepted name: | carotenoid φ-ring synthase | ||||||
| Reaction: | carotenoid β-end group + 2 acceptor = carotenoid φ-end group + 2 reduced acceptor | ||||||
| For diagram of aromatic carotenoid biosynthesis, click here | |||||||
| Glossary: | chlorobactene = φ,ψ-carotene β-isorenieratene = φ,β-carotene isorenieratene = φ,φ-carotene |
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| Other name(s): | crtU (gene name) (ambiguous) | ||||||
| Systematic name: | carotenoid β-ring:acceptor oxidoreductase/methyltranferase (φ-ring-forming) | ||||||
| Comments: | The enzyme, found in green sulfur bacteria, some cyanobacteria and some actinobacteria, introduces additional double bonds to the carotenoid β-end group, leading to aromatization of the ionone ring. As a result, one of the methyl groups at C-1 is transferred to position C-2. It is involved in the biosynthesis of carotenoids with φ-type aromatic end groups such as chlorobactene, β-isorenieratene, and isorenieratene. | ||||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||
| References: |
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