8-hydroxyquercetin 8-O-methyltransferase

S-adenosyl-L-methionine + 3,5,7,8,3',4'-hexahydroxyflavone $rightleftharpoons$ 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

• Jay M, De Luca V, Ibrahim RK "Purification, properties and kinetic mechanism of flavonol 8-O-methyltransferase from Lotus corniculatus L". Eur. J. Biochem. 153 321–5.

External links

The CAS registry number for this enzyme class is .

Gene Ontology (GO) codes