Molecular weight and amino acid composition of the exocellular <scp>dd</scp>-carboxypeptidase–transpeptidase of <i>Streptomyces</i> R61

Abstract

A procedure allowing the purification of milligram amounts of the exocellular dd-carboxypeptidase-transpeptidase from Streptomyces R61 to protein homogeneity (95% purity) is described. The isolated protein has a molecular weight of about 38000 and consists of one polypeptide chain. Its amino acid composition is presented.