Overview of Flavonoid Biosynthesis

There are many branches to the flavonoid biosynthetic pathways, with the best characterized being those leading to the colored anthocyanins and proanthocyanidins (PAs) and the generally colorless flavones, flavonols, and isoflavonoids. Genes or cDNAs have now been identified for all the core steps leading to anthocyanin, flavone, and flavonol formation, as well as many steps of the isoflavonoid branch, allowing extensive analysis of the encoded enzymes (Table 3.1). In addition, several DNA sequences are available for the modification enzymes that produce the variety of structures known within each class of compound. [Pg.145]

Flavonoid Biosynthetic Enzymes for which DNA Sequences Have Been Obtained — continued [Pg.148]

UDP-Glc aureusidin 7-O-glucosyltransferase Isoflavonoids AU7GT 2.4.1.- UGT Patent app WOOO/4 [Pg.148]

2-Flydroxyisoflavanone synthase (isoflavone synthase) 2HIS (IFS) 5.4.99.- CytP450 (CYP93C) 180-182 [Pg.148]

Pterocarpan 6a-hydroxylase (3,9-dihydroxypterocarpan 6a-hydroxylase) P6aH (DH6aH) 1.14.13.28 CytP450 (CYP93A) 202 [Pg.148]

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