3,7-dimethylquercetin 4′-O-methyltransferase EC#: 2.1.1.83; ChemWhat Code: 1376254

Product Name 3,7-dimethylquercetin 4′-O-methyltransferase
Example Structure Example Structure of 3,7-dimethylquercetin 4'-O-methyltransferase EC#: 2.1.1.83
Synonyms 4′-OMT, flavonol 4′-O-methyltransferase, methyltransferase, flavonol 4′-
EC Number 2.1.1.83
CAS Registry Number 96477-60-0
Comments 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.
Cofactor
History
Reactions S-adenosyl-L-methionine + 3′,4′,5-trihydroxy-3,7-dimethoxyflavone = S-adenosyl-L-homocysteine + 3′,5-dihydroxy-3,4′,7-trimethoxyflavone.

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