Table 1. Activation and deactivation G-V Boltzmann fit parameters recorded with physiological durations.
| Activation G-V V1/2 (mV) | k | Deactivation G-V V1/2 (mV) | k | Mode shift V1/2 (mV) | |
|---|---|---|---|---|---|
| WT | |||||
| pH 7.4 | −12.4 ± 1.1 (6) | 9.9 ± 0.4 | −66.0 ± 0.9 (6) | 7.3 ± 0.2 | −53.6 ± 1.8 |
| pH 6.5 | −5.9 ± 0.7 (6) | 11.2 ± 0.3 | −43.0 ± 0.7 (6) | 6.4 ± 0.1 | −37.1 ± 1.1 |
| D509A | |||||
| pH 7.4 | +17.1 ± 0.8 (5) | 14.7 ± 0.4 | +1.6 ± 1.1 (5) | 12.0 ± 0.4 | −15.5 ± 1.4 |
| pH 6.5 | +21.6 ± 1.5 (5) | 15.1 ± 0.2 | +4.8 ± 1.2 (5) | 11.6 ± 0.3 | −16.8 ± 1.9 |
Data are expressed as mean ± SEM, with the number of cells in parentheses.