Table 1.

GV Curve, Ion Selectivity, and Unitary Conductance Properties of WT and Mutant Channels, with n the Number of Cells Analyzed

	GV Curve		Selectivity	n	γ (pS)	n
	V1/2 (mV)	Slope k	Ratio Na+/K+
WT Kv2.1	12.2 ± 1.4	9.5 ± 0.6	0.015 ± 0.004	7	10.3 ± 0.4	3
T377A	−45.8 ± 2.4	9.9 ± 0.6	0.010 ± 0.002	6	4.9 ± 0.3	3
WT Kv3.1	23.5 ± 1.0	5.6 ± 0.3	0.014 ± 0.003	6	24.1 ± 3.1	3
T400A	−62.2 ± 2.9	11.9 ± 1.1	0.013 ± 0.002	5	5.6 ± 0.6	3