Divalent Metal Ion Transport across Large Biological Ion Channels and Their Effect on Conductance and Selectivity
Figure 5
(a) Theoretical predictions of 1D PNP model for the electrostatic exclusion using 2OMF and 2ZFG effective charge profiles from Figure 4 and for the diffusion potential of MgCl2. (b) OmpF channel reversal potential measurements in KCl and MgCl2 versus concentration ratio (). In all experiments the concentration on trans side is kept constant at 0.1 M and the concentration on cis side is varied. Measurements were done at pH 6.
