Description General description Recombinant, Bacteroides fragilis endo-β-galactosidase expressed in E. coli. Endo-β-Galactosidase is an enzyme that hydrolyzes internal β-galactosidic linkages of oligosaccharides in poly-N-acetyl-lactosamine structures. This enzyme resembles the Escherichia freundii enzyme due to its specificity towards bovine corneal keratan sulphate, milk oligosaccharides and the glycolipids lacto-N-neotetraosylceramide and lacto-N-tetraosylceramide. Recombinant, Bacteroides fragilis endo-β-galactosidase expressed in E. coli. Endo-β-Galactosidase is an enzyme that hydrolyzes internal β-galactosidic linkages of oligosaccharides in poly-N-acetyl-lactosamine structures. This enzyme resembles the Escherichia freundii enzyme due to its specificity towards bovine corneal keratan sulphate, milk oligosaccharides and the glycolipids lacto-N-neotetraosylceramide and lacto-N-tetraosylceramide. Optimum pH: 5.8. Packaging 50 μL in Plastic ampoule Warning Toxicity: Standard Handling (A) Unit Definition One unit is defined as the amount of enzyme that will liberate one µmol reducing sugar from bovine corneal keratan sulfate per min at 37°C, pH 5.8. Physical form Sterile-filtered in 20 mM Tris-HCl, pH 7.5. Reconstitution There is no significant loss of activity if left at ambient temperature for several days. The enzyme is active for at least 5 days under the Recommended Reaction Conditions above. Other Notes Murata, T., et al. 2003. Eur. J. Biochem.270, 3709. Scudder, P., et al. 1986. Eur. J. Biochem.157, 365. Scudder, P., et al. 1984. J. Biol. Chem.259, 6586. Scudder, P., et al. 1983. Biochem. J.213, 485.; Description