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Your query returned 1 entry. Printable version
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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