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Effect of anionic lipid on current-voltage curves. (A) Current-voltage curves for open KcsA channels are shown at POPG contents of 25 mol % (□, solid line); 50 mol % (♢, broken line); and 100 mol % (○, dotted line). (B) Current (pA) plotted as a function of mole fraction of POPG, at 100 mV and 150 mM KCl.
