3,7-dimethylquercetin 4'-O-methyltransferase

In enzymology, a 3,7-dimethylquercetin 4'-O-methyltransferase (EC number|2.1.1.83) is an enzyme that catalyzes the chemical reaction

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

Thus, the two substrates of this enzyme are S-adenosyl methionine and 5,3',4'-trihydroxy-3,7-dimethoxyflavone, whereas its two products are S-adenosylhomocysteine and 5,3'-dihydroxy-3,7,4'-trimethoxyflavone.

This enzyme belongs to the family of transferases, specifically those transferring one-carbon group methyltransferases. The systematic name of this enzyme class is S-adenosyl-L-methionine:5,3',4'-trihydroxy-3,7-dimethoxyflavone 4'-O-methyltransferase. Other names in common use include flavonol 4'-O-methyltransferase, flavonol 4'-methyltransferase, 4'-OMT, S-adenosyl-L-methionine:3',4',5-trihydroxy-3,7-dimethoxyflavone, 4'-O-methyltransferase, and 3,7-dimethylquercitin 4'-O-methyltransferase [mis-spelt] .

References

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External links

::"The CAS registry number for this enzyme class is CAS registry|96477-60-0."

Gene Ontology (GO) codes