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ENZYME

ENZYME entry: EC 1.14.15.9

Accepted Name
spheroidene monooxygenase
Alternative Name(s)
2-oxo-spirilloxanthin monooxygenase
acyclic carotenoid 2-ketolase
spirilloxanthin monooxygenase
Reaction catalysed
  • 4 H(+) + 2 O2 + 4 reduced [2Fe-2S]-[ferredoxin] + spheroidene = 3 H2O + 4 oxidized [2Fe-2S]-[ferredoxin] + spheroiden-2-one
  • 4 H(+) + 2 O2 + 4 reduced [2Fe-2S]-[ferredoxin] + spirilloxanthin = 2-oxospirilloxanthin + 3 H2O + 4 oxidized [2Fe-2S]-[ferredoxin]
  • 2-oxospirilloxanthin + 4 H(+) + 2 O2 + 4 reduced [2Fe-2S]-[ferredoxin] = 2,2'-dioxospirilloxanthin + 3 H2O + 4 oxidized [2Fe-2S]-[ferredoxin]
Comment(s)
  • The enzyme is involved in spheroidenone biosynthesis and in 2,2'-dioxospirilloxanthin biosynthesis.
  • The enzyme from Rhodobacter sphaeroides contains heme at its active site.
Cross-references
BRENDA1.14.15.9
EC2PDB1.14.15.9
ExplorEnz1.14.15.9
PRIAM enzyme-specific profiles1.14.15.9
KEGG Ligand Database for Enzyme Nomenclature1.14.15.9
IUBMB Enzyme Nomenclature1.14.15.9
IntEnz1.14.15.9
MEDLINEFind literature relating to 1.14.15.9
MetaCyc1.14.15.9
Rhea expert-curated reactions1.14.15.9
UniProtKB/Swiss-Prot
P17055, CRTA_RHOCB

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