Skip to main content
. 2008 Jul 18;95(9):4205–4216. doi: 10.1529/biophysj.108.136499

FIGURE 4.

FIGURE 4

The dimensionless coupling of the K+ to the applied transmembrane voltage deduced from three different routes is shown. The W-route: voltage-dependent PMF technique is based on Eq. 33. The Q-route: average of the displacement charge based on Eq. 34; the offset in the displacement charge is caused by the apparent capacitance of the system according to Eq. 20. The G-route: relative charging free energy based on Eq. 35 (squares). The end-point averaging technique based on Eq. 30 is also shown (solid lines). The color legend is 5.0 V (orange), 1.0 V (cyan), 0.5 V (magenta), −0.5 V (blue), −1.0 V (red), and −5.0 V (green).