ID 2.1.1.46 DE isoflavone 4'-O-methyltransferase. CA a 4'-hydroxyisoflavone + S-adenosyl-L-methionine = a 4'-methoxyisoflavone CA + H(+) + S-adenosyl-L-homocysteine. CC -!- The enzyme catalyzes the methylation of daidzein and genistein. CC -!- It does not methylate naringenin, apigenin, luteolin or kaempferol. DR Q84KK6, I4OMT_GLYEC; Q84KK4, I4OMT_LOTJA; Q29U70, I4OMT_MEDTR; DR O24305, M3OM1_PEA ; //