Soyasaponin III rhamnosyltransferase

Soyasaponin III rhamnosyltransferase (, UGT91H4, GmSGT3 (gene)) is an enzyme with systematic name UDP-rhamnose:soyasaponin III rhamnosyltransferase. This enzyme catalyses the following chemical reaction:


 * UDP-rhamnose + soyasaponin III $$\rightleftharpoons$$ UDP + soyasaponin I

Part of the biosynthetic pathway for soyasaponins.