. 2005 Nov;126(5):515–527. doi: 10.1085/jgp.200509328

TABLE I.

The Parameters and Goodness of Fit of Model Gating Schemes

Parameter	HM	aHM	SBS	aSBS	EMG	aEMG	JBS	AG
K_Ca ^WT (μM)	0.29 ± 0.03	0.39 ± 0.04	0.30 ± 0.03	0.66 ± 0.13	1.36 ± 0.08	0.60 ± 0.09	1.18 ± 0.16	0.50 ± 0.15
K_Ca ^QM(μM)							21.2 ± 4.3
K_Ca ^SM (μM)			39.8 ± 4.0	89 ± 14			670 ± 99
K_Ca ^M(μM)	112 ± 12	215 ± 40	15000^a	15000^a	1423 ± 135	471 ± 125		1379 ± 235
f		0.12 ± 0.02		0.27 ± 0.03		0.046 ± 0.020
K_O0		851^b		33.21^b		10800^b	100^a
K_O1							0.176^b
K_O4	0.176^b	0.176^b	0.176^b	0.176^b	0.00219^b	0.048^b
K_OL					0.5^a	0.5 ^a
K_CL					0.0333^a	0.89 ± 0.52
K_CI					3^a	3^a
K_Ca ^I(μM)							0.1^a
K_A								0.47 ± 0.13
Variable	HM	aHM	SBS	aSBS	EMG	aEMG	JBS	AG
P_O ^min	0	0.0011	0	0.029	0	0.0001	0	0
χ²	160.9	94.7	196.0	113.6	132.6	82.0	97.5	170.6
df	74	72	74	73	74	71	73	73
P	2.2 × 10⁻⁸	0.038	5.7 × 10⁻¹³	0.0017	3.4 × 10⁻⁵	0.17	0.029	8.7 × 10⁻¹⁰

Errors are shown as standard error of the fit. P_O ^min, open probability in the absence of Ca²⁺; χ², chi-square value; df, degrees of freedom; P, probability that the differences between data and model are due to random deviations.

Constant parameters.

Parameters calculated from the remaining parameters and from the value of P_O ^max = 0.85.