TABLE 1.

Single-channel conductances and average lifetimes

Analog	Conductance* (pS)	Lifetime (ms)
Gramicidin A	15.0 ± 0.3	840
Gramicidin B†	8.7 ± 0.3	2300
Gramicidin C	13.3 ± 0.3	950
Phe15-gA	10.9 ± 0.1	790
Phe13-gA	11.2 ± 0.1	800
Phe9-gA	6.0 ± 0.1	1000

Single-channel conductances and average durations are given as measured in DPhPC/n-decane bilayers under conditions of 1.0 M NaCl, 200 mV, and 25 ± 1°C.

^*Conductance values are given as mean ± SD.

^†Phe₁₁-gA.