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Default Bacterial cell wall composition and the influence of antibiotics by cell-wall and whole-cell NMR.

Bacterial cell wall composition and the influence of antibiotics by cell-wall and whole-cell NMR.

Related Articles Bacterial cell wall composition and the influence of antibiotics by cell-wall and whole-cell NMR.

Philos Trans R Soc Lond B Biol Sci. 2015 Oct 5;370(1679)

Authors: Romaniuk JA, Cegelski L

Abstract
The ability to characterize bacterial cell-wall composition and structure is crucial to understanding the function of the bacterial cell wall, determining drug modes of action and developing new-generation therapeutics. Solid-state NMR has emerged as a powerful tool to quantify chemical composition and to map cell-wall architecture in bacteria and plants, even in the context of unperturbed intact whole cells. In this review, we discuss solid-state NMR approaches to define peptidoglycan composition and to characterize the modes of action of old and new antibiotics, focusing on examples in Staphylococcus aureus. We provide perspectives regarding the selected NMR strategies as we describe the exciting and still-developing cell-wall and whole-cell NMR toolkit. We also discuss specific discoveries regarding the modes of action of vancomycin analogues, including oritavancin, and briefly address the reconsideration of the killing action of ?-lactam antibiotics. In such chemical genetics approaches, there is still much to be learned from perturbations enacted by cell-wall assembly inhibitors, and solid-state NMR approaches are poised to address questions of cell-wall composition and assembly in S. aureus and other organisms.


PMID: 26370936 [PubMed - indexed for MEDLINE]



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