title: Purification and specificity of carboxypeptidase from Streptomyces griseus K-1.
abstract: A carboxypeptidase of St. griseus K-1 (CPase S) was found to possess the specificities of both mammalian pancreatic CPase A and B. Three adsorbents for affinity chromatography were prepared by coupling l-Leu, d-Leu, and d-Arg with CH-Sepharose 4B. d-Arg-CH-Sepharose and l-Leu-CH-Sepharose retained the purified CPase S but d-Leu-CH-Sepharose did not. The activities of CPase S toward CGL and BGA were eluted in the same position. CPase S migrated as a single band on polyacrylamide gel electrophoresis and the two activities were both extracted from this band on the gel.
mesh_terms: D002268:Carboxypeptidases / Q000302:isolation & purification* / Q000378:metabolism; D013305:Streptomyces griseus / Q000201:enzymology*; D013379:Substrate Specificity
chemical_list: D002268:Carboxypeptidases