Figure 3

Summary of current-voltage relationships of amiloride-sensitive currents on permeable and impermeable supports. Summary of current-voltage relationships in terms of amiloride-sensitive currents measured in Na⁺-rich bath solution and K⁺-rich bath solution from SCCD epithelial cells grown on (A) permeable supports and (B) impermeable supports. Voltages are corrected for the liquid junction potentials (see Methods). I, amil-sens, amiloride-sensitive currents (pA/pF).