Table 5.

Generalized regioselectivity of UGT1A1, 1A3, 1A9 or 1A10 towards four flavonoid subclasses: flavonols, flavones, flavanones, and isoflavones.

Backbone structure	Supporting compounds
	Flavones		Chrysin [30,51]	Flavones		3,7-dihydroxyflavone [52,53]
			6,7-dihydroxyflavone*			Galangin [52]
			Apigenin [51]			Resokaempferol [52]
			Baicalein [57]			Kaempferol [52]
			Wogonin [54]			3,3',4'-trihydroxyflavone*
			Oroxylin A [54]			Fisetin*
			6,3’,4’-trihydroxyflavone*			Quercetin*[56]
			Luteolin* [55]			Myricetin* [50]
	Flavanone		Hesperetin [33]
	Isoflavone		Daidzein [1,59]
			Genistein [1,59]
			Formononetin [1,59]
			Biochanin A [1,59]
			Prunetin [1,58,59]
			Glycitein [1,59]

^*Please refer to Table 4 for kinetic parameters.