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ENZYME entry: EC 1.3.99.39

Accepted Name
Carotenoid phi-ring synthase.
Reaction catalysed
Carotenoid beta-end group + 2 acceptor <=> carotenoid phi-end group + 2 reduced acceptor
Comment(s)
  • The enzyme, found in green sulfur bacteria, some cyanobacteria and some actinobacteria, introduces additional double bonds to the carotenoid beta-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 phi-type aromatic end groups such as chlorobactene, beta-isorenieratene, and isorenieratene.
Cross-references
BRENDA1.3.99.39
EC2PDB1.3.99.39
ExplorEnz1.3.99.39
PRIAM enzyme-specific profiles1.3.99.39
KEGG Ligand Database for Enzyme Nomenclature1.3.99.39
IUBMB Enzyme Nomenclature1.3.99.39
IntEnz1.3.99.39
MEDLINEFind literature relating to 1.3.99.39
MetaCyc1.3.99.39

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