Reaction catalyzed by glucuronate-1-phosphate uridylyltransferase (2.7.7.44), UTP-monosaccharide-1-phosphate uridylyltransferase (2.7.7.64)
+
=
+
UTP
+
D-glucuronic acid 1-phosphate
=
diphosphate
+
UDP-D-glucuronic acid