
Báo cáo khoa học: Structure–activity relationships of wheat flavone O-methyltransferase – a homodimer of convenience
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Wheat flavoneO-methyltransferase catalyzes three sequential methylations of the flavone tricetin. Like other flavonoidO-methyltransferases, the pro-tein is a homodimer. We demonstrate, using analytical ultracentrifugation, that perchlorate dissociates the dimer into monomers. The resulting mono-mers retain all their catalytic capacity, including the ability to catalyze the three successive methylations.
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