ID 2.1.1.267 DE flavonoid 3',5'-methyltransferase. CA (1) S-adenosyl-L-methionine + a 3'-hydroxyflavonoid = S-adenosyl-L- CA homocysteine + a 3'-methoxyflavonoid. CA (2) S-adenosyl-L-methionine + a 5'-hydroxy-3'-methoxyflavonoid = CA S-adenosyl-L-homocysteine + a 3',5'-dimethoxyflavonoid. CC -!- Isolated from Vitis vinifera (grape). CC -!- Most active with delphinidin 3-glucoside but also acts on cyanidin CC 3-glucoside, cyanidin, myricetin, quercetin and quercetin CC 3-glucoside. CC -!- The enzyme from Catharanthus roseus was most active with myricetin. CC -!- Formerly EC 2.1.1.149. DR C7AE94, FAOMT_VITVI; F2YTN4, MOMT1_SOLHA; A0A088MF62, MOMT4_SOLLC; DR Q8GSN1, MOMT_CATRO ; //