Figure 5. Resolution of I_{K, vol} from total currents activated by cell swelling in Ehrlich cells based upon clofilium inhibition.

Currents were measured by the protocol described in the legend to Fig. 1 with the pipette and external solutions described in Table 1 (37 mM Cl⁻). In A, total currents measured in high-Na⁺ or high-K⁺ external solution, or after addition of 100 μM clofilium to the bathing medium are shown. In B, I_{K, vol} was calculated by subtraction on the assumption that all I_{K, vol} was inhibited by 100 μM clofilium (see Results).