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. 1998 Oct 1;112(4):423–432. doi: 10.1085/jgp.112.4.423

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Plot of channel open probability (P_o) against pipette holding potential (−Vp) for αβ (▪) and αβ_T (•). Pipette solution contained 1 μM amiloride. Channel P _o was measured from single channel patches recorded at each of the indicated voltages for several minutes. Each point is the mean ± SEM of three experiments.