3.2.1.33 glucosidase-transferase stable in 0.05 M Tris and 2 M urea, up to 30°C 171369 3.2.1.33 glucosidase-transferase stable in 2 M urea, 2 M urea for prolonged periods of time: no loss in activity 171369 3.2.1.33 glucosidase: rather resistant to proteolytic attack: very little inactivation after prolonged incubation with 1% trypsin or 1% chymotrypsin 171388 3.2.1.33 stable in 2 M urea, irreversible denaturation with higher concentrations, 3 M, of urea 171366, 171368