Beta-glucogallin O-galloyltransferase explained

beta-glucogallin O-galloyltransferase
Ec Number:	2.3.1.90
Cas Number:	87502-55-4
Go Code:	0047201

In enzymology, a beta-glucogallin O-galloyltransferase is an enzyme that catalyzes the chemical reaction

2 1-O-galloyl-beta-D-glucose

\rightleftharpoons D-glucose + 1-O,6-O-digalloyl-beta-D-glucose

Hence, this enzyme has one substrate, 1-O-galloyl-beta-D-glucose, and two products, D-glucose and 1-O,6-O-digalloyl-beta-D-glucose.

This enzyme belongs to the family of transferases, specifically those acyltransferases transferring groups other than aminoacyl groups. The systematic name of this enzyme class is 1-O-galloyl-beta-D-glucose:1-O-galloyl-beta-D-glucose O-galloyltransferase.

References

• Denzel K, Schilling G, Gross GG . 1988 . Biosynthesis of gallotannins - enzymatic conversion of 1,6-digalloylglucose to 1,2,6-trigalloylglucose . Planta . 176 . 135 - 137 . 10.1007/BF00392489 . 24220744.
• Gross, GG . 1983 . Synthesis of mono-galloyl-beta-D-glucose di-galloyl-beta-D-glucose and trigalloyl-beta-D-glucose by beta-glucogallin-dependent galloyltransferases from oak leaves . Z. Naturforsch. C . 38 . 519 - 523 .