Conformational changes in a bacterial multidrug transporter are phosphatidylethanolamine-dependent

  title={Conformational changes in a bacterial multidrug transporter are phosphatidylethanolamine-dependent},
  author={B. Gbaguidi and P. Hakizimana and G. Vandenbussche and J.-M. Ruysschaert},
  journal={Cellular and Molecular Life Sciences},
  • B. Gbaguidi, P. Hakizimana, +1 author J.-M. Ruysschaert
  • Published 2007
  • Chemistry, Medicine
  • Cellular and Molecular Life Sciences
  • Abstract.LmrP is an electrogenic H+/drug antiporter that extrudes a broad spectrum of antibiotics. Five carboxylic residues are implicated in drug binding (Asp142 and Glu327) and proton motive force-mediated restructuring (Asp68, Asp128 and Asp235). ATR-FTIR (Attenuated Total Reflection — Fourier Transform Infrared) and tryptophan quenching experiments revealed that phosphatidylethanolamine (PE) is required to generate the structural intermediates induced by ionization of carboxylic residues… CONTINUE READING
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