Table 1. Rate constants for Models FR and FRT with and without GxTx.

Model	Condition	Rate constant	k0mV/s−1	z/e0
FR	Control	α	240	0.65
		β	110	0.17
	GxTx	α	17	0.73
		β	10	0.50
FRT	GxTx	ktr	38	0.93
		kre	8.7	1.0
FR, FRT	Control, GxTx	kopen	160	0
		kclose	38	0

Best fit of voltage-dependent rate constants to the simulations presented in Figs. 11 and 12. Values of α, β, k_trap, and k_release are from fits of Eq. 8 shown in Fig. 11, D and E; and Fig. 12 C. Values of k_open, and k_close were chosen as described in Results. The k_0mV column gives the rate at 0 mV for each rate constant, and the z column indicates the equivalent electronic charge assigned to the rate constant.