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Lateral communication by fast proton conduction: a model membrane study

J Teissié1, B Gabriel, M Prats

  • 1Department of Glycoconjugates and Biomembranes, UPR 8221 du CNRS, Toulouse, France.

Trends in Biochemical Sciences
|July 1, 1993
PubMed
Summary
This summary is machine-generated.

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Biological membranes facilitate information transfer via proton conduction along lipid-water interfaces. A 2D hydrogen bond network between lipid headgroups and water molecules explains this efficient lateral communication.

Area of Science:

  • Biophysics
  • Cell Biology
  • Membrane Science

Background:

  • Lateral communication is crucial for cellular functions.
  • Physicochemical studies suggest efficient proton movement along membranes.

Purpose of the Study:

  • To investigate the mechanism of lateral information transfer in biological membranes.
  • To explain the observed facilitated lateral proton conduction.

Main Methods:

  • Physicochemical experiments were conducted.
  • Analysis of proton conduction along lipid-water interfaces.

Main Results:

  • Evidence supports efficient facilitated lateral proton conduction along lipid-water interfaces.
  • A local two-dimensional hydrogen bond network was identified.

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Conclusions:

  • The 2D hydrogen bond network between lipid headgroups and water molecules explains lateral proton conduction.
  • This mechanism is key for cellular information transfer along membranes.