Radii of the anions and relative permeability of PorACj from C. jeikeium in different salt solutions.

The data for the limiting conductivities of the different ions were taken from ref. [66]. The radii of the hydrated anions were calculated using the Stokes equation [67]. The single channel conductance of PorACj for the different salts at 0.1 M was taken from Table 3. The relative permeability of the single anions was calculated by dividing the single-channel conductance of the individual anion by that of 0.1 M KBr. The relative permeability for 0.1 M KBr was set to unity.