Kaempferol 3-O-galactosyltransferase explained

Kaempferol 3-O-galactosyltransferase
Ec Number:	2.4.1.234

In enzymology, a kaempferol 3-O-galactosyltransferase is an enzyme that catalyzes the chemical reaction

UDP-galactose + kaempferol

\rightleftharpoons UDP + kaempferol 3-O-beta-D-galactoside

Thus, the two substrates of this enzyme are UDP-galactose and kaempferol, whereas its two products are UDP and trifolin.

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.

References

• Miller KD, Guyon V, Evans JN, Shuttleworth WA, Taylor LP . 1999 . Purification, cloning, and heterologous expression of a catalytically efficient flavonol 3-O-galactosyltransferase expressed in the male gametophyte of Petunia hybrida . J. Biol. Chem. . 274 . 34011 - 9 . 10567367 . 10.1074/jbc.274.48.34011 . 48 . free .