Kaempferol 3-O-galactosyltransferase (EC 2.4.1.234) is an enzyme that catalyzes the chemical reaction
The two substrates of this enzyme characterised from Petunia hybrida and seedlings of Vigna mungo are the flavonol, kaempferol, and UDP-galactose. Its products are trifolin and uridine diphosphate (UDP).. This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-galactose:kaempferol 3-O-beta-D-galactosyltransferase. This enzyme is also called F3GalTase. It can act on other flavonols including quercetin, myricetin, and fisetin. It can also convert the galactoside derivatives back to their parent compounds.
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