Table 1. Boltzmann fit parameters for Cd... | Rockefeller University Press

Table 1.

Boltzmann fit parameters for Cd²⁺ experiments

Channel	[Cd²⁺]^a	V₅₀^b	s^c	n^d
WT	0	−103.2 ± 1.8	22.3 ± 0.4	10
	300	46.5 ± 2.3	21.4 ± 0.3	10
	0 (pH 5)	−95.2 ± 2.3	20.4 ± 0.2	8
	300 (pH 5)	−106.1 ± 2.0	20.0 ± 0.2	8
D95N	0	0.2 ± 2.8	11.6 ± 0.6	8
D95N	300	−3.6 ± 1.5	13.6 ± 0.6	8
N99D	0	−111.8 ± 2.6	18.8 ± 0.5	8
N99D	300	−80.3 ± 3.3	22.0 ± 1.1	8
Q149E	0	−77.1 ± 1.5	18.7 ± 0.4	8
Q149E	300	12.7 ± 1.9	18.0 ± 0.6	8

Channel	[Cd²⁺]^a	V₅₀^b	s^c	n^d
WT	0	−103.2 ± 1.8	22.3 ± 0.4	10
	300	46.5 ± 2.3	21.4 ± 0.3	10
	0 (pH 5)	−95.2 ± 2.3	20.4 ± 0.2	8
	300 (pH 5)	−106.1 ± 2.0	20.0 ± 0.2	8
D95N	0	0.2 ± 2.8	11.6 ± 0.6	8
D95N	300	−3.6 ± 1.5	13.6 ± 0.6	8
N99D	0	−111.8 ± 2.6	18.8 ± 0.5	8
N99D	300	−80.3 ± 3.3	22.0 ± 1.1	8
Q149E	0	−77.1 ± 1.5	18.7 ± 0.4	8
Q149E	300	12.7 ± 1.9	18.0 ± 0.6	8

External [Cd²⁺] in μM. Recorded in 20 mM external K⁺; pH 7.0 unless otherwise noted.

Midpoint of single Boltzmann fit, mV (mean ± SEM).

Slope factor, mV (mean ± SEM).

Number of measurements.