Role of Serine 286 in cosubstrate binding and catalysis of a flavonol O-methyltransferase.

Abstract

O-Methyltransferases catalyze the transfer of the methyl groups of S-adenosyl-L-methionine to specific hydroxyl groups of several classes of flavonoid compounds. Of the several cDNA clones isolated from a Chrysosplenium americanum library, FOMT3' encodes the 3'/5'-O-methylation of partially methylated flavonols. The recombinant protein of another clone… (More)

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