Studies on glucosaminidase. N-Acetyl-β-glucosaminidase in rat kidney

Abstract
The hydrolysis of phenyl N-acetyl-[beta]-D-glucosaminide by N-acetyl-[beta]-glucosaminidase in a partially purified extract of rat kidney was investigated, and conditions for the estimation of the enzyme were established. In 0.05 [image] citrate buffer, the enzyme shows optimum activity at pH 4.3. The optimum substrate concentration cannot be attained because of the limited solubility of the substrate. N-Acetyl-[beta]-glucosaminidase is inhibited competitively by N-acetylglucosamine, acetamide and acetate.