ID 2.1.1.212 DE 2,7,4'-trihydroxyisoflavanone 4'-O-methyltransferase. CA (2R,3S)-2,4',7-trihydroxyisoflavanone + S-adenosyl-L-methionine = CA (2R,3S)-2,7-dihydroxy-4'-methoxyisoflavanone + H(+) + S-adenosyl-L- CA homocysteine. CC -!- Specifically methylates 2,4',7-trihydroxyisoflavanone on the CC 4'-position. CC -!- No activity with isoflavones. CC -!- The enzyme is involved in formononetin biosynthesis in legumes. CC -!- The protein from pea (Pisum sativum) also methylates (+)- CC 6a-hydroxymaackiain at the 3-position (cf. EC 2.1.1.270). DR Q84KK6, I4OMT_GLYEC; Q84KK4, I4OMT_LOTJA; Q29U70, I4OMT_MEDTR; //