ID 2.1.1.42 DE flavone 3'-O-methyltransferase. AN o-dihydric phenol methyltransferase. AN quercetin 3'-O-methyltransferase. CA a 3'-hydroxyflavone + S-adenosyl-L-methionine = a 3'-methoxyflavone + CA H(+) + S-adenosyl-L-homocysteine. CC -!- The enzyme prefers flavones with vicinal 3',4'-dihydroxyl groups. DR Q9FK25, OMT1_ARATH ; P59049, OMT1_CHRAE ; Q6ZD89, OMT1_ORYSJ ; DR Q42653, OMT2_CHRAE ; Q6VMV9, OMT3_MENPI ; //