产品内容
本酶催化的反应为2 S-Adenosyl-L-Methionine + Myricetin = 2 S-Adenosyl-L-Homocysteine + Syringetin (Overall Reaction);;(1a) S-Adenosyl-L-Methionine + Myricetin = S-Adenosyl-L-Homocysteine + Laricitrin;;(1b) S-Adenosyl-L-Methionine + Laricitrin = S-Adenosyl-L-Homocysteine + Syringetin，系统名称为S-Adenosyl-L-Methionine:myricetin O-Methyltransferase，来自马达加斯加长春花（Catharanthus roseus）的酶很特殊，因为它对同一底物进行两次甲基化。也催化二氢杨梅素（dihydromyricetin）的甲基化。
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