PMID: 9435111Jan 22, 1998Paper

The glycopeptide antibiotic producer Streptomyces toyocaensis NRRL 15009 has both D-alanyl-D-alanine and D-alanyl-D-lactate ligases

FEMS Microbiology Letters
C G Marshall, G D Wright

Abstract

High level resistance to vancomycin and other glycopeptide antibiotics requires the synthesis of peptidoglycan terminating in the depsipeptide D-Ala-D-lactate, rather the usual D-Ala-D-Ala. We report the purification and enzymatic characterization of two D-Ala ligases from Streptomyces toyocaensis NRRL 15009 which produces the glycopeptide antibiotic A47934. One of these enzymes catalyzes only D-Ala-D-Ala peptide formation and is recovered from mid-exponential phase cell cultures. The other enzyme is a D-Ala-D-lactate ligase which can be detected in actively antibiotic producing stationary phase cultures or mid-exponential phase cultures grown in the presence of A47934. These results imply that peptidoglycan components of S. toyocaensis NRRL 15009 change upon induction of antibiotic production and predict the existence of a VanX-like D-Ala-D-Ala DD-dipeptidase activity.

Citations

Jul 18, 2009·Applied Microbiology and Biotechnology·Hyung-Moo JungJung-Kul Lee
May 7, 2010·Journal of Industrial Microbiology & Biotechnology·Eric Cundliffe, Arnold L Demain
Feb 6, 2007·Nature Reviews. Microbiology·Gerard D Wright
Jun 13, 2002·Proceedings of the National Academy of Sciences of the United States of America·Jeff PootoolalGerard D Wright
Sep 29, 1999·Proceedings of the National Academy of Sciences of the United States of America·I A Lessard, C T Walsh
Dec 7, 2007·The Urologic Clinics of North America·F M E WagenlehnerK G Naber
Jan 21, 2015·International Journal of Medical Microbiology : IJMM·Evi StegmannRoberta Pozzi
Nov 29, 2014·The Veterinary Record·Andy Stringer

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