EC 3.2.1.52 CAZY Family: GH3 Recombinant. From microbial source. In 3.2 M ammonium sulphate. Hydrolysis of terminal non-reducing N-acetyl-D-hexosamine residues in N-acetyl-β-D-hexosaminides from glycoproteins and oligosaccharides. Specific activity: ~ 2 U/mg (37oC, pH 7.5 on pNP-β-D-N-acetylglucosamine) Store at 4oC.