Endopeptidase and Glycosidase Activities of the Bacteriophage B30 Lysin

Author:

Baker John R.1,Liu Chengbao1,Dong Shengli1,Pritchard David G.1

Affiliation:

1. Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, Alabama

Abstract

ABSTRACT Synthetic peptides corresponding to portions of group B streptococcal peptidoglycan were used to show that the endopeptidase activity of bacteriophage B30 lysin cleaves between d -Ala in the stem peptide and l -Ala in the cross bridge and that the minimal peptide sequence cleaved is dl -γ-Glu-Lys- d -Ala-Ala-Ala. The only glycosidase activity present is that of N -acetyl-β- d -muramidase.

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

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