Figure 2.

Time-course of Ba²⁺ effect on transporter current and K⁺ current. (A) Bath-applied 200 μ M BaCl₂ produces downward shift in I_hold (black triangles), and increase in transporter current (TC, empty circles) in a single cell. (B) Summary graph of mean normalized transporter current (TC, n = 5) in the presence of Ba²⁺ and after 5 min of washout (wash). (C) Summary graph of normalized K⁺ current (n = 5) in the presence of Ba²⁺ and after 10 min of washout (wash) (D) Summary graph of mean Δ I_hold (n = 5) in the presence of Ba²⁺ and after 10 min of washout (wash). Error bars—SEM; ^**P < 0.01; N.S.—non significant; One-Way ANOVA post-hoc Tukey test.