Demethylspheroidene O-methyltransferase

Demethylspheroidene O-methyltransferase (, "1-hydroxycarotenoid O-methylase", "1-hydroxycarotenoid methylase", "1-HO-carotenoid methylase", "CrtF") is an enzyme with systematic name "S-adenosyl-L-methionine:demethylspheroidene O-methyltransferase". This enzyme catalyses the following chemical reaction
In "Rhodopseudomonas capsulata" and "Rubrivivax gelatinosus" the enzyme is involved in biosynthesis of spheroidene.