Table 2.
Trajectory lengths and permeation events for the 500 mM KCl system
| Applied voltage (mVa) |
Number of K+ permeation events | Trajectory length (μs) |
|---|---|---|
| −250 | 0 | 4.71 |
| −500 | 1 | 5.61 |
| −750 | 2 | 3.76b |
a
Applied voltages were modeled as constant electric fields along the transmembrane direction with a magnitude equal to the indicated voltage value divided by the value of the thickness of the dielectric barrier along the VSD axis (23 Å).
b
Total trajectory length was 4.33 μs; VSD swells with water and ions, resulting in non-selective permeation after 3.76 μs.