ID 2.1.1.231 DE flavonoid 4'-O-methyltransferase. AN 4'-hydroxyisoflavone methyltransferase. AN isoflavone O-methyltransferase. CA a 4'-hydroxyflavanone + S-adenosyl-L-methionine = a 4'-methoxyflavanone + CA H(+) + S-adenosyl-L-homocysteine. CC -!- The enzyme catalyzes the 4'-methylation of naringenin. CC -!- In vitro it catalyzes the 4'-methylation of apigenin, quercetin, CC daidzein and genistein. DR C6TAY1, SOMT2_SOYBN; //