ID 2.1.1.339 DE xanthohumol 4-O-methyltransferase. CA xanthohumol + S-adenosyl-L-methionine = 4-O-methylxanthohumol + CA S-adenosyl-L-homocysteine + H(+). CC -!- The enzyme from hops (Humulus lupulus) has a broad substrate CC specificity. CC -!- The best substrates in vitro are resveratrol, desmethylxanthohumol, CC chalconaringenin and isoliquiritigenin. DR B0ZB56, OMT2_HUMLU ; //