Table I.

Steady-state properties of the Samanea K_D channels

Cell Type	Parameter
	γS	Erev	n̄max	E1/2	z
	pS	mV		mV
Extensor	20.9 ± 0.8 (10)	−75 ± 1 (10)	5.3 ± 2 (10)	−24 ± 8 (10)	1.9 ± 0.3 (10)
Flexor	19.6 ± 0.8 (8)	−78 ± 1 (8)	11.2 ± 4 (8)	−14 ± 8 (8)	1.2 ± 0.2 (8)

Extensor and flexor cells compared at a physiological range of free [Ca²⁺]_cyt (20–600 nm). Permeation properties (resulting from fit of Eq. 1 to the steady-state unitary current-voltage relationship, as in “Materials and Methods” and Fig. 1B). Gating properties (resulting from the fit of Eq. 4 to the steady-state voltage dependence of channel opening, as in “Materials and Methods” and Fig. 1C). Data are means ± se (no. of cells).