8-hydroxyquercetin 8-O-methyltransferase

In enzymology, a 8-hydroxyquercetin 8-O-methyltransferase (EC number|2.1.1.88) is an enzyme that catalyzes the chemical reaction

:S-adenosyl-L-methionine + 3,5,7,8,3',4'-hexahydroxyflavone $ightleftharpoons$ S-adenosyl-L-homocysteine + 3,5,7,3',4'-pentahydroxy-8-methoxyflavone

Thus, the two substrates of this enzyme are S-adenosyl methionine and 3,5,7,8,3',4'-hexahydroxyflavone, whereas its two products are S-adenosylhomocysteine and 3,5,7,3',4'-pentahydroxy-8-methoxyflavone.

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:3,5,7,8,3',4'-hexahydroxyflavone 8-O-methyltransferase. Other names in common use include flavonol 8-O-methyltransferase, flavonol 8-methyltransferase, S-adenosyl-L-methionine:3,3',4',5,7,8-hexahydroxyflavone, 8-O-methyltransferase, and 8-hydroxyquercitin 8-O-methyltransferase [mis-spelt] .

References

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External links

::"The CAS registry number for this enzyme class is CAS registry|99775-17-4."

Gene Ontology (GO) codes