Figure 4. Voltage dependence of inactivation of Na_V1.7, Na_V1.3, Na_V1.6 and Na_V1.5 currents in Ins1 cells compared to HEK cells.

A, voltage dependence of Na_V1.7 current inactivation (h _∞) when the α‐subunit is co‐expressed with β₁‐ and β₂‐subunits in Ins1 (same data as in Fig. 3 A: dashed curve) and HEK cells (red; n = 9). The curve represents a single Boltzmann fit to the data. B, as in A but for Na_V1.3 (dashed curve same data as in Fig. 3 A; red, n = 7). C, as in A but for Na_V1.6 (black, n = 35; red, n = 10). D, as in A but for Na_V1.5 (black, n = 9; red, n = 10). See also Table 1. [Color figure can be viewed at http://wileyonlinelibrary.com]