Description
The enzyme requires Fe(II) and ascorbate. It is involved in the pathway by which many flowering plants make anthocyanin (glycosylated anthocyandin) flower pigments. The intermediates are transformed into cis- and trans-dihydroquercetin, which the enzyme can also oxidize to quercetin. Acidification of the products gives anthocyanidin, which, however, may not be a natural precursor of the anthocyanins