Table 3. Average single channel conductance, G, of the BesC channels in different salt solutions.
Salt | Concentration, M | Average single channel conductance, pS |
LiCl | 1 | 250 |
KCl | 0.1 | 30 |
KCl | 0.3 | 90 |
KCl | 1 | 300 |
KCl | 3 | 900 |
KCH3COO, pH 7 | 1 | 150 |
The membranes were formed from 1% diphytanoylphoshatidylcholine dissolved in n-decane. The pH of the aqueous salt solutions was 6 if not indicated otherwise. The single-channel conductance is given as the mean of at least 100 single events. The applied voltage was 20 mV and the temperature was 20°C.