From: Sodium selectivity of Reissner's membrane epithelial cells
I(-100) [pA] | g(-) [nS] | Vr [mV] | I(+100) [pA] | g(+) [nS] | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Series 1 Physiological | [Pipette]/[Bath] | Benz (-) | Benz (+) | Benz (-) | Benz (+) | Benz (-) | Benz (+) | Benz (-) | Benz (+) | Benz (-) | Benz (+) |
140KCl/150NaCl | -1305 {277 (7)} | -671 ‡ {146 (7)} | 17.2 {2.1 (7)} | 10.2 ‡ {1.1 (7)} | 9.4 {3.7 (7)} | -2.0 ns {5.7 (7)} | 938 {367 (7)} | 708 ns {257 (7)} | 9.9 {3.7 (7)} | 7.2 ns {2.3 (7)} | |
Series 2 Na or K Bath | 150Na-ms/150Na-ms | -2044 {552 (6)} | -255 ‡ {57 (6)} | 25.9 {7.0 (6)} | 2.6 ‡ {0.5 (6)} | 0.5 {0.5 (6)} | -0.9 ns {1.0 (6)} | 1496 {363 (6)} | 769 ‡ {177 (6)} | 16.5 {3.8 (6)} | 13.9 ns {3.2 (6)} |
150K-ms/150K-ms | -476‡ {112 (8)} | -429 ns {130 (8)} | 6.1 ‡ {1.3 (8)} | 4.6 ns {1.3 (8)} | -3.8 ‡ {1.2 (8)} | -3.6 ns {1.2 (8)} | 677 ns {218 (8)} | 625 ns {218 (8)} | 8.0 ns {2.5 (8)} | 6.8 ns {2.4 (8)} | |
Series 3 Benzamil Na/Li | 150Na-ms/150Na-ms | -1922 {96 (5)} | -639 ‡ {151 (5)} | 19.8 {1.1 (5)} | 5.9 ‡ {2.1 (5)} | 0.7 {0.4 (5)} | -0.3 ‡ {0.5 (5)} | 2109 {153 (5)} | 1413 ‡ {165 (5)} | 23.7 {1.6 (5)} | 20.3 ‡ {1.7 (5)} |
150Na-ms/150Li-ms | -1656 {126 (5)} | -682 ‡ {86 (5)} | 15.9 {1.3 (5)} | 6.5 ‡ {0.7 (5)} | 6.3 {1.5 (5)} | 3.1 ‡ {1.5 (5)} | 1619 {224 (5)} | 1203 ‡ {144 (5)} | 18.9 {2.6 (5)} | 16.8 ns {1.8 (5)} | |
Benz (-) | Benz (-) | Benz (-) | Benz (-) | Benz (-) | |||||||
Series 4 Na - Li | 150Na-ms/150Na-ms | -1416 {181 (5)} | 14.1 {1.6 (5)} | 0.1 {0.4 (5)} | 1710 {218 (5)} | 18.3 {2.1 (5)} | |||||
150Na-ms/150Li-ms | -1699 ‡ {149 (5)} | 16.2 ‡ {1.4 (5)} | 7.1 ‡ {1.2 (5)} | 1840 ns {148 (5)} | 21.3 ns {1.5 (5)} | ||||||
Benz (-) | Benz (+) | Benz (-) | Benz (+) | Benz (-) | Benz (+) | Benz (-) | Benz (+) | Benz (-) | Benz (+) | ||
Series 5 All cations - benzamil | 15Na-ms/150Na-ms | -3434 {363 (5)} | -741 ‡ {65 (5)} | 31.2 {3.3 (5)} | 6.1 ‡ {0.9 (5)} | 29.8 {1.0 (5)} | 21.1 ‡ {2.5 (5)} | 1666 {243 (5)} | 1039 ‡ {162 (5)} | 25.7 {3.1 (5)} | 21.1 ‡ {2.4 (5)} |
Benz (-) | Benz (-) | Benz (-) | Benz (-) | Benz (-) | |||||||
15Na-ms/150NMDG-ms | -802 ‡ {118 (5)} | 11.3‡ {1.4 (5)} | -27.8 ‡ {3.6 (5)} | 1834 ns {342 (5)} | 17.0 ‡ {3.0 (5)} |