Fig. 4

V370G mutant channels were permeable to Rb⁺, Cs⁺ but not Li⁺. a Tail currents of 3 different V370G channel-expressing cells exposed to bath solution containing 140 mM Rb⁺, 140 mM Cs⁺ or 140 mM Li⁺. b Instantaneous I–V relationships of the tail currents of V370G in bath solutions containing different cations. c Reversal potentials of the tail currents of V370G in bath solutions containing different cations. Results are mean ± SEM from 3 cells of each group