TABLE I.

Comparing G–V Parameters

	BKa			BKα+β1
[Ca]	V 1/2	Q(e)	n	V 1/2	Q(e)	n
μM	mV	e		mV	e
0.003	203 ± 5.3	0.95 ± 0.03	4	215 ± 3.4	0.66 ± 0.03	16
1	125 ± 4.7	1.35 ± 0.12	7	82 ± 3.4	0.99 ± 0.02	20
10	37 ± 5.6	1.26 ± 0.07	8	−60 ± 1.6	1.05 ± 0.05	7
100	1 ± 2.4	1.17 ± 0.03	22	−100 ± 3.5	1 ± 0.06	10

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