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2.1.1.83: 3,7-dimethylquercetin 4'-O-methyltransferase

This is an abbreviated version!
For detailed information about 3,7-dimethylquercetin 4'-O-methyltransferase, go to the full flat file.

Reaction

S-adenosyl-L-methionine
+
5,3',4'-trihydroxy-3,7-dimethoxyflavone
=
S-adenosyl-L-homocysteine
+
5,3'-dihydroxy-3,7,4'-trimethoxyflavone

Synonyms

4'-OMT, flavonol 4'-O-methyltransferase, methyltransferase, flavonol 4'-

ECTree

     2 Transferases
         2.1 Transferring one-carbon groups
             2.1.1 Methyltransferases
                2.1.1.83 3,7-dimethylquercetin 4'-O-methyltransferase

Systematic Name

Systematic Name on EC 2.1.1.83 - 3,7-dimethylquercetin 4'-O-methyltransferase

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SYSTEMATIC NAME
IUBMB Comments
S-adenosyl-L-methionine:5,3',4'-trihydroxy-3,7-dimethoxyflavone 4'-O-methyltransferase
3,7-Dimethylquercetagetin can also act as acceptor. Involved with EC 2.1.1.76 quercetin 3-O-methyltransferase and EC 2.1.1.82 3-methylquercetin 7-O-methyltransferase in the methylation of quercetin to 3,7,4'-trimethylquercetin in Chrysosplenium americanum. Does not act on flavones, dihydroflavonols, or their glucosides.