ID 2.4.1.392 DE 3-O-beta-D-glucopyranosyl-beta-D-glucuronide phosphorylase. CA a 3-O-beta-D-glucosyl-beta-D-glucuronoside + phosphate = a beta-D- CA glucuronoside + alpha-D-glucopyranose 1-phosphate. CC -!- The enzyme, characterized from the bacterium Paenibacillus borealis, CC catalyzes a reversible reaction, transferring a glucosyl residue CC attached by a beta(1,3) linkage to a D-glucuronate residue (either CC free or as a part of a beta-D-glucuronide) to a free phosphate, CC generating alpha-D-glucopyranose 1-phosphate. //