Allelic variants from Dahlia variabilis encode flavonoid 3'-hydroxylases with functional differences in chalcone 3-hydroxylase activity.

Abstract excerpt

In the petals of Dahlia variabilis, hydroxylation of chalcones at position 3 can be detected, except the well-known flavonoid 3'-hydroxylation. Although the reaction is well characterized at the enzymatic level, it remained unclear whether it is catalyzed by a flavonoid 3'-hydroxylase (F3'H, EC1.14.13.21, CYP75B) with broad substrate specificity. Two novel allelic variants of F3'H were cloned from D. variabilis,...

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