ENZYME entry: EC 1.13.11.71

Accepted Name
Carotenoid-9',10'-cleaving dioxygenase.
Alternative Name(s)
Beta-carotene 9',10'-monooxygenase.
Reaction catalysed
All-trans-beta-carotene + O(2) <=> all-trans-10'-apo-beta-carotenal + beta-ionone
Cofactor(s)
Fe cation.
Comment(s)
  • The enzyme catalyzes the asymmetric oxidative cleavage of carotenoids.
  • The mammalian enzyme can also cleave all-trans-lycopene.
  • Formerly EC 1.14.99.n2.
Cross-references
BRENDA1.13.11.71
EC2PDB1.13.11.71
ExplorEnz1.13.11.71
PRIAM enzyme-specific profiles1.13.11.71
KEGG Ligand Database for Enzyme Nomenclature1.13.11.71
IUBMB Enzyme Nomenclature1.13.11.71
IntEnz1.13.11.71
MEDLINEFind literature relating to 1.13.11.71
MetaCyc1.13.11.71
UniProtKB/Swiss-Prot
Q9BYV7, BCDO2_HUMAN;  Q8HXG8, BCDO2_MACFA;  Q99NF1, BCDO2_MOUSE;  
Q5RF16, BCDO2_PONAB;  

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