Figure 1. Permeation properties of Tl+ ions. (A) Whole-cell current-voltage relations of Kir2.1 channels recorded by TEVC with either K+ or Tl+ as the external permeant ion. (B) Close-up of A to show the outward current and reversal potential. (C) Relative whole-cell current recorded at −100 mV by TEVC in external solutions containing different concentrations of K+ and Tl+. The total concentration of both ions is 100 mM. Each data point is the average of four to eight measurements. Error bars are SD.
Image published in: Lu T et al. (2001)
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