Mur1, a Streptococcus thermophilus peptidoglycan hydrolase devoid of a specific cell wall binding domain

Abstract The gene encoding Mur1, a Streptococcus thermophilus peptidoglycan hydrolase, was cloned by homology with acmA, the Lactococcus lactis major autolysin gene. Mur1 is a 24.7-kDa protein endowed with a putative signal peptide. Sequence analysis evidenced that Mur1 encompasses exactly the AcmA...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:FEMS microbiology letters 2000-06, Vol.187 (1), p.69-76
Hauptverfasser: Husson-Kao, Clara, Mengaud, Jérôme, Benbadis, Laurent, Chapot-Chartier, Marie-Pierre
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Abstract The gene encoding Mur1, a Streptococcus thermophilus peptidoglycan hydrolase, was cloned by homology with acmA, the Lactococcus lactis major autolysin gene. Mur1 is a 24.7-kDa protein endowed with a putative signal peptide. Sequence analysis evidenced that Mur1 encompasses exactly the AcmA region containing the catalytic domain, but lacks the one containing amino acid repeats involved in cell wall binding. Mur1 appears to be expressed and cell-associated in S. thermophilus, as revealed by immunoblot analysis. These results suggest that the cell wall attachment mode of Mur1 differs from that of most peptidoglycan hydrolases described so far.
ISSN:0378-1097
1574-6968
DOI:10.1111/j.1574-6968.2000.tb09139.x