Three-dimensional Poisson-Nernst-Planck theory studies: influence of membrane electrostatics on gramicidin A channel conductance.

نویسندگان

  • A E Cárdenas
  • R D Coalson
  • M G Kurnikova
چکیده

A recently introduced real-space lattice methodology for solving the three-dimensional Poisson-Nernst-Planck equations is used to compute current-voltage relations for ion permeation through the gramicidin A ion channel embedded in membranes characterized by surface dipoles and/or surface charge. Comparisons to a variety of experimental results, presented herein, have proven largely successful. Strengths and weaknesses of the method are discussed.

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عنوان ژورنال:
  • Biophysical journal

دوره 79 1  شماره 

صفحات  -

تاریخ انتشار 2000