Characterization of a Small Proteolytic Enzyme Which Lyses Bacterial Cell Walls

Overview

Journal J Bacteriol

Publisher American Society for Microbiology

Specialty Microbiology

Date 1966 Feb 1

PMID 5935339

Citations 44

Authors

J C Ensign

R S WOLFE

Affiliations

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Abstract

Ensign, J. C. (University of Wisconsin, Madison), and R. S. Wolfe. Characterization of a small proteolytic enzyme which lyses bacterial cell walls. J. Bacteriol. 91:524-534. 1966.-An enzyme isolated from a myxobacter possesses both cell-wall lytic and proteolytic activity. The enzyme has been purified over 600-fold and is electrophoretically homogeneous upon cellulose acetate at several pH values and upon polyacrylamide gel columns. A single peak was obtained upon ultracentrifugation and density gradient centrifugation. Based upon Sephadex gel filtration, a molecular weight of 8,700 was determined for the enzyme. Albumin and casein were extensively degraded by the enzyme, with approximately one-third of the peptide bonds present in these proteins being hydrolyzed. The enzyme lyses cell walls by hydrolyzing peptide bonds in the glycosaminopeptide.

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