ID 2.1.1.42 DE Flavone 3'-O-methyltransferase. AN o-dihydric phenol methyltransferase. AN Quercetin 3'-O-methyltransferase. CA S-adenosyl-L-methionine + 3'-hydroxyflavone = S-adenosyl-L-homocysteine + CA 3'-methoxyflavone. CC -!- The enzyme prefers flavones with vicinal 3',4'-dihydroxyl groups. DR Q9FK25, OMT1_ARATH ; Q6ZD89, OMT1_ORYSJ ; //