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. 2005 Sep;126(3):213–226. doi: 10.1085/jgp.200509287

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Copyright © 2005, The Rockefeller University Press

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Figure 5. — The G466A/V467G mutations have no effect on Rb⁺/K⁺ selectivity. (A) Currents shown from either an outside-out patch (WT on left) or whole cell recording (G466A/V467G on the right). Voltage protocols described in the text. (B) Reversal potentials of isochronal I-V plots were obtained by linear interpolation. Rb⁺ solutions caused a −6.9 ± 0.7 mV shift in WT (n = 4 cells) and a −4.7 ± 0.9 mV shift in mutant (n = 6) channels.