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Structural basis for the blockade of MATE multidrug efflux pumps

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms8995· OSTI ID:1214707
 [1];  [1];  [1];  [1]
  1. Rosalind Franklin Univ. of Medicine and Sciences, North Chicago, IL (United States). Dept. of Biochemistry and Molecular Biology.
Multidrug and toxic compound extrusion (MATE) transporters underpin multidrug resistance by using the H+ or Na+ electrochemical gradient to extrude different drugs across cell membranes. MATE transporters can be further parsed into the DinF, NorM and eukaryotic subfamilies based on their amino-acid sequence similarity. Here we report the 3.0 Å resolution X-ray structures of a protonation-mimetic mutant of an H+-coupled DinF transporter, as well as of an H+-coupled DinF and a Na+-coupled NorM transporters in complexes with verapamil, a small-molecule pharmaceutical that inhibits MATE-mediated multidrug extrusion. Combining structure-inspired mutational and functional studies, we confirm the biological relevance of our crystal structures, reveal the mechanistic differences among MATE transporters, and suggest how verapamil inhibits MATE-mediated multidrug efflux. Our findings offer insights into how MATE transporters extrude chemically and structurally dissimilar drugs and could inform the design of new strategies for tackling multidrug resistance.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1214707
Alternate ID(s):
OSTI ID: 1245872
Journal Information:
Nature Communications, Journal Name: Nature Communications Vol. 6; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (18)

Pacing across the membrane: the novel PACE family of efflux pumps is widespread in Gram-negative pathogens journal September 2018
Structural basis for xenobiotic extrusion by eukaryotic MATE transporter journal November 2017
Structure of an engineered multidrug transporter MdfA reveals the molecular basis for substrate recognition journal June 2019
Structures of multidrug and toxic compound extrusion transporters and their mechanistic implications journal January 2016
The putative drug efflux systems of the Bacillus cereus group journal May 2017
Genomic and phenotypic characterisation of fluoroquinolone resistance mechanisms in Enterobacteriaceae in Durban, South Africa journal June 2017
Carbonyl Cyanide m-Chlorophenylhydrazine (CCCP) Reverses Resistance to Colistin, but Not to Carbapenems and Tigecycline in Multidrug-Resistant Enterobacteriaceae journal February 2017
Efflux pump inhibitors for bacterial pathogens: From bench to bedside journal January 2019
Lipid Flippases for Bacterial Peptidoglycan Biosynthesis journal January 2015
Multidrug efflux pumps: structure, function and regulation journal July 2018
Functional characterization and discovery of modulators of SbMATE, the agronomically important aluminium tolerance transporter from Sorghum bicolor journal December 2017
Broadly conserved Na + -binding site in the N-lobe of prokaryotic multidrug MATE transporters journal June 2018
Sodium and proton coupling in the conformational cycle of a MATE antiporter from Vibrio cholerae journal June 2018
Inward-facing conformation of a multidrug resistance MATE family transporter journal June 2019
The N-terminal domain of an archaeal multidrug and toxin extrusion (MATE) transporter mediates proton coupling required for prokaryotic drug resistance journal July 2019
Tackling drug resistance with efflux pump inhibitors: from bacteria to cancerous cells journal April 2019
The multitasking abilities of MATE transporters in plants journal May 2019
Functional characterization and discovery of modulators of SbMATE, the agronomically important aluminium tolerance transporter from Sorghum bicolor journal August 2017

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