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J Bacteriol. 2007 May;189(10):3927-31. Epub 2007 Mar 16.

Identification of the L,D-transpeptidases responsible for attachment of the Braun lipoprotein to Escherichia coli peptidoglycan.

Author information

  • 1INSERM, U655-LRMA, Université Pierre et Marie Curie, Centre de Recherches Biomédicales des Cordeliers, Paris, France. sophie.magnet@bhdc.jussieu.fr

Abstract

The L,D-transpeptidase Ldt(fm) catalyzes peptidoglycan cross-linking in beta-lactam-resistant mutant strains of Enterococcus faecium. Here, we show that in Escherichia coli Ldt(fm) homologues are responsible for the attachment of the Braun lipoprotein to murein, indicating that evolutionarily related domains have been tailored to use muropeptides or proteins as acyl acceptors in the L,D-transpeptidation reaction.

PMID:
17369299
PMCID:
PMC1913343
DOI:
10.1128/JB.00084-07
[PubMed - indexed for MEDLINE]
Free PMC Article
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