Table 1. Effects of external [Ca 2 ] on... | Rockefeller University Press

Table 1.

Effects of external [Ca²⁺] on single-channel kinetics

[Ca²⁺]	P_o		P_o (1 − P_closed)	MCT	MOT		Events
	O_P	O_S			O_P	O_S
mM				ms	ms	ms
0 (n = 7)	0.38 ± 0.08	-	0.38 ± 0.08	12 ± 4	5.0 ± 0.6	-	1.6 × 10⁶
1.8 (n = 5)	0.26 ± 0.04	0.006 ± 0.001	0.27 ± 0.03	16 ± 4	4.9 ± 0.6	2.6 ± 0.4	1.9 × 10⁶
5 (n = 6)	0.13 ± 0.06^a	0.007 ± 0.003	0.14 ± 0.06^a	70 ± 30^a	4.0 ± 0.7	2.8 ± 0.7	3.4 × 10⁵
75 (n = 7)	0.18 ± 0.06^a	0.02 ± 0.01^a	0.20 ± 0.07	200 ± 100^a	6.4 ± 0.7	3.5 ± 0.3^a	2.3 × 10⁵

[Ca²⁺]	P_o		P_o (1 − P_closed)	MCT	MOT		Events
	O_P	O_S			O_P	O_S
mM				ms	ms	ms
0 (n = 7)	0.38 ± 0.08	-	0.38 ± 0.08	12 ± 4	5.0 ± 0.6	-	1.6 × 10⁶
1.8 (n = 5)	0.26 ± 0.04	0.006 ± 0.001	0.27 ± 0.03	16 ± 4	4.9 ± 0.6	2.6 ± 0.4	1.9 × 10⁶
5 (n = 6)	0.13 ± 0.06^a	0.007 ± 0.003	0.14 ± 0.06^a	70 ± 30^a	4.0 ± 0.7	2.8 ± 0.7	3.4 × 10⁵
75 (n = 7)	0.18 ± 0.06^a	0.02 ± 0.01^a	0.20 ± 0.07	200 ± 100^a	6.4 ± 0.7	3.5 ± 0.3^a	2.3 × 10⁵

P < 0.05 relative to 0 mM Ca²⁺ for O_P and relative to 1.8 mM Ca²⁺ for O_S (unpaired t test).