Structure of MATE multidrug transporter DinF-BH

Experimental Data Snapshot

  • Resolution: 3.20 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.290 
  • R-Value Observed: 0.300 

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This is version 1.2 of the entry. See complete history


Structural insights into H(+)-coupled multidrug extrusion by a MATE transporter

Lu, M.Radchenko, M.Symersky, J.Nie, R.Guo, Y.

(2013) Nat Struct Mol Biol 20: 1310-1317

  • DOI: https://doi.org/10.1038/nsmb.2687
  • Primary Citation of Related Structures:  
    4LZ6, 4LZ9

  • PubMed Abstract: 

    Multidrug and toxic compound extrusion (MATE) transporters contribute to multidrug resistance by coupling the efflux of drugs to the influx of Na(+) or H(+). Known structures of Na(+)-coupled, extracellular-facing MATE transporters from the NorM subfamily revealed 12 membrane-spanning segments related by a quasi-two-fold rotational symmetry and a multidrug-binding cavity situated near the membrane surface. Here we report the crystal structure of an H(+)-coupled MATE transporter from Bacillus halodurans and the DinF subfamily at 3.2-Å resolution, unveiling a surprisingly asymmetric arrangement of 12 transmembrane helices. We also identified a membrane-embedded substrate-binding chamber by combining crystallographic and biochemical analyses. Our studies further suggested a direct competition between H(+) and substrate during DinF-mediated transport and implied how a MATE transporter alternates between its extracellular- and intracellular-facing conformations to propel multidrug extrusion. Collectively, our results demonstrated heretofore-unrecognized mechanistic diversity among MATE transporters.

  • Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
BH2163 protein446Halalkalibacterium halodurans C-125Mutation(s): 0 
Gene Names: BH2163
Membrane Entity: Yes 
Find proteins for Q9KAX3 (Halalkalibacterium halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125))
Explore Q9KAX3 
Go to UniProtKB:  Q9KAX3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9KAX3
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 3.20 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.290 
  • R-Value Observed: 0.300 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.759α = 90
b = 95.073β = 90
c = 101.652γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-10-23
    Type: Initial release
  • Version 1.1: 2013-11-20
    Changes: Database references
  • Version 1.2: 2024-03-20
    Changes: Data collection, Database references