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Endopeptidase and Glycosidase Activities of the Bacteriophage B30 Lysin

Authors
Journal
Applied and Environmental Microbiology
0099-2240
Publisher
American Society for Microbiology
Publication Date
Volume
72
Issue
10
Identifiers
DOI: 10.1128/aem.00829-06
Keywords
  • Enzymology And Protein Engineering

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.

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