Jump to main content
Jump to site search

Issue 2, 2017
Previous Article Next Article

Engineering monolayer poration for rapid exfoliation of microbial membranes

Author affiliations

Abstract

The spread of bacterial resistance to traditional antibiotics continues to stimulate the search for alternative antimicrobial strategies. All forms of life, from bacteria to humans, are postulated to rely on a fundamental host defense mechanism, which exploits the formation of open pores in microbial phospholipid bilayers. Here we predict that transmembrane poration is not necessary for antimicrobial activity and reveal a distinct poration mechanism that targets the outer leaflet of phospholipid bilayers. Using a combination of molecular-scale and real-time imaging, spectroscopy and spectrometry approaches, we introduce a structural motif with a universal insertion mode in reconstituted membranes and live bacteria. We demonstrate that this motif rapidly assembles into monolayer pits that coalesce during progressive membrane exfoliation, leading to bacterial cell death within minutes. The findings offer a new physical basis for designing effective antibiotics.

Graphical abstract: Engineering monolayer poration for rapid exfoliation of microbial membranes

Back to tab navigation

Supplementary files

Article information


Submitted
03 Jul 2016
Accepted
25 Sep 2016
First published
26 Sep 2016

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2017,8, 1105-1115
Article type
Edge Article
Author version available

Engineering monolayer poration for rapid exfoliation of microbial membranes

A. Pyne, M. Pfeil, I. Bennett, J. Ravi, P. Iavicoli, B. Lamarre, A. Roethke, S. Ray, H. Jiang, A. Bella, B. Reisinger, D. Yin, B. Little, J. C. Muñoz-García, E. Cerasoli, P. J. Judge, N. Faruqui, L. Calzolai, A. Henrion, G. J. Martyna, C. R. M. Grovenor, J. Crain, B. W. Hoogenboom, A. Watts and M. G. Ryadnov, Chem. Sci., 2017, 8, 1105 DOI: 10.1039/C6SC02925F

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements