ENTRY       EC 2.1.1.82
NAME        3-Methylquercetin 7-O-methyltransferase
            Flavonol 7-O-methyltransferase
CLASS       Transferases
            Transferring one-carbon groups
            Methyltransferases
SYSNAME     S-Adenosyl-L-methionine:3',4',5,7-tetrahydroxy-3-methoxyflavone
            $ 7-O-methyltransferase
REACTION    S-Adenosyl-L-methionine + 3',4',5,7-Tetrahydroxy-3-methoxyflavone
            S-Adenosyl-L-homocysteine +
            3',4',5-Trihydroxy-3,7-dimethoxyflavone
SUBSTRATE   S-Adenosyl-L-methionine
            3',4',5,7-Tetrahydroxy-3-methoxyflavone
PRODUCT     S-Adenosyl-L-homocysteine
            3',4',5-Trihydroxy-3,7-dimethoxyflavone
COMMENT     Involved with EC 2.1.1.76 and 2.1.1.83 in the methylation of
            quercitin to 3,7,4'-trimethylquercitin in Chrysosplenium
            americanum.  Does not act on flavones, dihydroflavonols, or their
            glucosides.
DBLINKS     University of Geneva ENZYME DATA BANK: 2.1.1.82
            WIT (What Is There) Metabolic Reconstruction: 2.1.1.82
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