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Your query returned 2 entries. Printable version
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 | 1.13.11.59 | ||||||
Accepted name: | torulene dioxygenase | ||||||
Reaction: | torulene + O2 = 4′-apo-β,ψ-caroten-4′-al + 3-methylbut-2-enal | ||||||
Glossary: | torulene = 3′,4′-didehydro-β,ψ-carotene | ||||||
Other name(s): | CAO-2; CarT | ||||||
Systematic name: | torulene:oxygen oxidoreductase | ||||||
Comments: | It is assumed that 3-methylbut-2-enal is formed. The enzyme cannot cleave the saturated 3′,4′-bond of γ-carotene which implies that a 3′,4′-double bond is neccessary for this reaction. | ||||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||||
References: |
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