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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Cell Calcium. 2011 Feb 23;49(3):162–173. doi: 10.1016/j.ceca.2011.01.008

Figure 5. ICa suppression depends on the ionic properties of the extracellular monovalent cation.

Figure 5

A–C) I-V relation of ICa in external solutions containing 145mM (◇) and 10 mM (▽) NaCl using 140 mM of LiCl, CsCl or TEACl to replace the remaining NaCl. D) Representative traces of ICa suppression in 10 mM Na+ replacing the extracellular cation with Li+, Cs+ and TEA+. E) Quantitative representation of relative peak current suppression from baseline when extracellular monovalents were varied between Na+, Li+, Cs+ and TEA+ in 10 mM Na+ (N=6–15, p<0.01 for all three conditions).