Communications Biology (May 2021)

Engineered MATE multidrug transporters reveal two functionally distinct ion-coupling pathways in NorM from Vibrio cholerae

  • Sagar Raturi,
  • Asha V. Nair,
  • Keiko Shinoda,
  • Himansha Singh,
  • Boyan Bai,
  • Satoshi Murakami,
  • Hideaki Fujitani,
  • Hendrik W. van Veen

DOI
https://doi.org/10.1038/s42003-021-02081-6
Journal volume & issue
Vol. 4, no. 1
pp. 1 – 17

Abstract

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Raturi and Nair et al. describe functional ion pathways within the MATE transporter NorM from Vibrio cholerae (NorM-VC). By creating chimeric proteins and mutants of NorM-VC and NorM-PS, they dissect the localisation of ion-coupling events and roles of conserved catalytic carboxylates in H+ binding and Na+ coordination, with findings useful to the field of transporters and drug resistance pumps.