Open AccessProton long-range migration along protein monolayers and its consequences on membrane coupling
Author(s) -
Bruno Gabriel,
Justin Teissié
Publication year - 1996
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.93.25.14521
Subject(s) - delocalized electron , membrane , proton , chemical physics , monolayer , range (aeronautics) , coupling (piping) , biological membrane , biophysics , chemistry , materials science , crystallography , nanotechnology , biology , biochemistry , physics , organic chemistry , quantum mechanics , metallurgy , composite material
It has been shown with lipid layers and more recently with purple membranes that protons have slow surface-to-bulk transfer. This results in long-range proton lateral conduction along membranes. We report here that such lateral transfer can take place along a pure protein film. It is strongly controlled by the packing. Subtle reorganizations of the protein–protein contact can be biological switches between interfacial and delocalized proton pathways between sources and sinks.