Table 2. pH dependence of steady state activation and deactivation G-V Boltzmann fit parameters.

WT	Activation G-V V1/2 (mV)	k	Deactivation G-V V1/2 (mV)	k	Mode shift V1/2 (mV)
pH 8.5	−41.8 ± 0.8 (5)	7.5 ± 0.2	−68.1 ± 1.5 (5)	6.6 ± 0.3	−26.2 ± 1.5
pH 7.4	−34.5 ± 1.3 (12)	7.0 ± 0.3	−56.4 ± 1.2 (12)	6.5 ± 0.3	−21.9 ± 1.4
pH 7.0	−27.4 ± 0.9 (5)	8.1 ± 0.6	−41.4 ± 0.6 (5)	5.4 ± 0.5	−13.9 ± 0.5
pH 6.5	−27.3 ± 0.8 (5)	6.3 ± 0.9	−38.8 ± 1.2 (5)	6.2 ± 1.0	−11.5 ± 0.5
pH 6.0	−22.9 ± 1.8 (5)	7.7 ± 0.5	−29.3 ± 1.2 (5)	6.8 ± 0.7	−6.5 ± 0.8
pH 5.5	−11.5 ± 2.4 (4)	11.9 ± 0.5	−17.9 ± 2.2 (4)	6.9 ± 0.3	−6.4 ± 0.6

Data are expressed as mean ± SEM, with the number of cells in parentheses.