label: 3',4',5'-trimethylmyricetin 7-O-methyltransferase activity
label_lc: 3',4',5'-trimethylmyricetin 7-o-methyltransferase activity
description: "Catalysis of the reaction: 3',4',5'-O-trimethylmyricetin + S-adenosyl-L-methionine = 7,3',4',5'-O-tetramethylmyricetin + S-adenosyl-L-homocysteine."