label: syringetin 7-O-methyltransferase activity
label_lc: syringetin 7-o-methyltransferase activity
description: "Catalysis of the reaction: S-adenosyl-L-methionine + syringetin = 7,3',5'-O-trimethylmyricetin + H+ + S-adenosyl-L-homocysteine."