Open Access
Open access
Nature Communications, volume 11, issue 1, publication number 1455

Ca2+-Daptomycin targets cell wall biosynthesis by forming a tripartite complex with undecaprenyl-coupled intermediates and membrane lipids

Grein Fabian 1, 2
Müller Anna 1
Scherer Katharina M. 3
Liu Xinliang 3
Ludwig Kevin C 1
Klöckner Anna 1, 2
Strach Manuel 1
SAHL HANS-GEORG 4
Kubitscheck Ulrich 3
Schneider Tanja 1, 2
1
 
Institute for Pharmaceutical Microbiology, University Hospital Bonn, University of Bonn, Bonn, Germany
2
 
German Center for Infection Research (DZIF), partner site Bonn-Cologne, Bonn, Germany
3
 
Institute for Physical and Theoretical Chemistry, University of Bonn, Bonn, Germany
4
 
Institute of Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, University of Bonn, Bonn, Germany
Publication typeJournal Article
Publication date2020-03-19
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor16.6
ISSN20411723
General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy
Abstract
The lipopeptide daptomycin is used as an antibiotic to treat severe infections with gram-positive pathogens, such as methicillin resistant Staphylococcus aureus (MRSA) and drug-resistant enterococci. Its precise mechanism of action is incompletely understood, and a specific molecular target has not been identified. Here we show that Ca2+-daptomycin specifically interacts with undecaprenyl-coupled cell envelope precursors in the presence of the anionic phospholipid phosphatidylglycerol, forming a tripartite complex. We use microbiological and biochemical assays, in combination with fluorescence and optical sectioning microscopy of intact staphylococcal cells and model membrane systems. Binding primarily occurs at the staphylococcal septum and interrupts cell wall biosynthesis. This is followed by delocalisation of components of the peptidoglycan biosynthesis machinery and massive membrane rearrangements, which may account for the pleiotropic cellular events previously reported. The identification of carrier-bound cell wall precursors as specific targets explains the specificity of daptomycin for bacterial cells. Our work reconciles apparently inconsistent previous results, and supports a concise model for the mode of action of daptomycin. The mechanism of action of daptomycin, a lipopeptidic antibiotic, is unclear. Here, the authors show that Ca2+-daptomycin simultaneously interacts with lipid-coupled precursors of the bacterial cell envelope and with the anionic phospholipid phosphatidylglycerol, forming a tripartite complex.

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GOST Copy
Grein F. et al. Ca2+-Daptomycin targets cell wall biosynthesis by forming a tripartite complex with undecaprenyl-coupled intermediates and membrane lipids // Nature Communications. 2020. Vol. 11. No. 1. 1455
GOST all authors (up to 50) Copy
Grein F., Müller A., Scherer K. M., Liu X., Ludwig K. C., Klöckner A., Strach M., SAHL H., Kubitscheck U., Schneider T. Ca2+-Daptomycin targets cell wall biosynthesis by forming a tripartite complex with undecaprenyl-coupled intermediates and membrane lipids // Nature Communications. 2020. Vol. 11. No. 1. 1455
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RIS Copy
TY - JOUR
DO - 10.1038/s41467-020-15257-1
UR - https://doi.org/10.1038%2Fs41467-020-15257-1
TI - Ca2+-Daptomycin targets cell wall biosynthesis by forming a tripartite complex with undecaprenyl-coupled intermediates and membrane lipids
T2 - Nature Communications
AU - Grein, Fabian
AU - Müller, Anna
AU - Scherer, Katharina M.
AU - Liu, Xinliang
AU - Ludwig, Kevin C
AU - Klöckner, Anna
AU - Strach, Manuel
AU - SAHL, HANS-GEORG
AU - Kubitscheck, Ulrich
AU - Schneider, Tanja
PY - 2020
DA - 2020/03/19 00:00:00
PB - Springer Nature
IS - 1
VL - 11
PMID - 32193379
SN - 2041-1723
ER -
BibTex
Cite this
BibTex Copy
@article{2020_Grein,
author = {Fabian Grein and Anna Müller and Katharina M. Scherer and Xinliang Liu and Kevin C Ludwig and Anna Klöckner and Manuel Strach and HANS-GEORG SAHL and Ulrich Kubitscheck and Tanja Schneider},
title = {Ca2+-Daptomycin targets cell wall biosynthesis by forming a tripartite complex with undecaprenyl-coupled intermediates and membrane lipids},
journal = {Nature Communications},
year = {2020},
volume = {11},
publisher = {Springer Nature},
month = {mar},
url = {https://doi.org/10.1038%2Fs41467-020-15257-1},
number = {1},
doi = {10.1038/s41467-020-15257-1}
}
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