Thermodynamic secrets of multidrug resistance: A new take on transport mechanisms of secondary active antiporters.

Protein Sci

National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Beijing, 100101, China.

Published: March 2018


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Article Abstract

Multidrug resistance (MDR) presents a growing challenge to global public health. Drug extrusion transporters play a critical part in MDR; thus, their mechanisms of substrate recognition are being studied in great detail. In this work, we review common structural features of key transporters involved in MDR. Based on our membrane potential-driving hypothesis, we propose a general energy-coupling mechanism for secondary-active antiporters. This putative mechanism provides a common framework for understanding poly-specificity of most-if not all-MDR transporters.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5818768PMC
http://dx.doi.org/10.1002/pro.3355DOI Listing

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