Biochemical Reconstitution and Characterization of Multicomponent Drug Efflux Transporters

  • Martin Picard
  • Elena B. Tikhonova
  • Isabelle Broutin
  • Shuo Lu
  • Alice Verchère
  • Helen I. Zgurskaya
Part of the Methods in Molecular Biology book series (MIMB, volume 1700)


Efflux pumps are the major determinants in bacterial multidrug resistance. In Gram-negative bacteria, efflux transporters are organized as macromolecular tripartite machineries that span the two-membrane cell envelope of the bacterium. Biochemical data on purified proteins are essential to draw a mechanistic picture of this highly dynamical, multicomponent, efflux system. We describe protocols for the reconstitution and the in vitro study of transporters belonging to RND and ABC superfamilies: the AcrAB–TolC and MacAB–TolC efflux systems from Escherichia coli and the MexAB–OprM efflux pump from Pseudomonas aeruginosa.

Key words

Membrane protein purification Proteoliposomes Transport kinetics 


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Copyright information

© Springer Science+Business Media LLC 2018

Authors and Affiliations

  • Martin Picard
    • 4
  • Elena B. Tikhonova
    • 3
  • Isabelle Broutin
    • 1
  • Shuo Lu
    • 2
  • Alice Verchère
    • 1
  • Helen I. Zgurskaya
    • 2
  1. 1.Laboratoire de Cristallographie et RMN Biologiques, UMR 8015, CNRSUniversité Paris Descartes, Faculté de Pharmacie de ParisParisFrance
  2. 2.Department of Chemistry and BiochemistryUniversity of OklahomaNormanUSA
  3. 3.Department of Cell Biology and BiochemistryTexas Tech University Health Science CenterLubbockUSA
  4. 4.Laboratoire de Biologie Physico-chimique des ProtÕines MembranairesUMR7099. IBPC, UniversitÕ Paris DiderotParisFrance

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