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. 2009 Mar;133(3):283–294. doi: 10.1085/jgp.200810141

TABLE II.

G-V Parameters

Ca²⁺ (μM)	α_WT			α_D369G			α_WTβ4			α_D369Gβ4
Ca²⁺ (μM)	V_1/2 (mV)	Q (e₀)	n	V_1/2 (mV)	Q (e₀)	n	V_1/2 (mV)	Q (e₀)	n	V_1/2 (mV)	Q (e₀)	n
0.006	177.6 ± 4.0	1.30 ± 0.06	12	161.5 ± 2.5	1.23 ± 0.05	14	246.1 ± 3.8	0.81 ± 0.23	4	237.2 ± 12.2	0.66 ± 0.05	9
0.073	162.5 ± 5.2	1.53 ± 0.12	13	126.2 ± 3.0	1.63 ± 0.11	9	206.4 ± 9.7	1.16 ± 0.16	6	150.9 ± 3.74	1.34 ± 0.13	9
0.363	130.2 ± 3.8	1.63 ± 0.11	15	85.6 ± 4.3	1.77 ± 0.14	16	155.8 ± 6.2	1.33 ± 0.10	19	111.0 ± 3.8	1.84 ± 0.12	10
2.1	57.3 ± 3.1	1.93 ± 0.08	26	16.2 ± 3.1	2.06 ± 0.09	22	74.5 ± 5.6	1.54 ± 0.06	19	40.2 ± 3.6	1.62 ± 0.05	32
41	−15.7 ± 2.5	1.85 ± 0.09	19	−34.3 ± 3.6	1.63 ± 0.08	18	−36.9 ± 2.8	1.88 ± 0.04	38	−65.6 ± 2.7	1.77 ± 0.13	15

The values shown are Boltzmann-fit parameters. They indicate mean ± sem.