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. 2014 Sep;144(3):245–255. doi: 10.1085/jgp.201411220

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© 2014 Yang and Palmer

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Figure 2. — Effects of replacement of bath Na⁺ with K⁺. (A) Replacement of NaCl with KCl in the presence of 2 mM Ca²⁺. (B) Replacement of NaCl with KCl in the absence of Ca²⁺. (C) Replacement of NaMeSO₄ with K MeSO₄ in the presence of 2 mM Ca²⁺. (D) Replacement of NaCl with 20 mM Ca (MeSO₄)₂. (E) Replacement of NaCl with 75 mM MgCl₂. In all cases, currents were normalized to values obtained at V_m = −100 mV with 110 mM NaCl (I₀). Data represent means ± SEM for four to seven measurements.