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. 1997 Oct 1;110(4):379–389. doi: 10.1085/jgp.110.4.379

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CSk2 retains Ca-dependent inactivation, but Ba current inactivation is dramatically slowed. (A) Representative Ca and Ba currents mediated by CSk2. Test pulses from −10 to +60 mV (Ca) and −10 to +50 mV (Ba). Files 97428010, 97428014. C = 17 pF. R_S = 2.2 MΩ. (B) Representative Ca and Ba currents mediated by α_1C. Test pulses from −10 to +40 mV (Ca) and −10 to +50 mV (Ba). Files 97502005, 97502012. C = 31 pF. R_S = 2.3 MΩ. (C) I–V relations for CSk2 currents. Plotted points represent the mean (±SEM) of 4–10 different cells. (D) Voltage dependence of fast time constants for inactivation of CSk2. Plotted points represent mean (±SEM) of four to five different cells. Experiments summarized in this figure were done using the NaCl-based external solution.