Reaction catalyzed by cyanidin-3-O-glucoside 2''-O-glucuronosyltransferase (2.4.1.254)
+
=
+
UDP-beta-D-glucuronate
+
cyanidin 3-O-beta-D-glucoside
=
UDP
+
cyanidin 3-O-beta-(2-O-beta-D-glucuronosyl)-beta-D-glucoside