Table 2.

Ramp currents of WT and mutant Nav1.7 channels at multiple depolarizing rates

Nav1.7 ramp current0.2 mV/ms0.24 mV/ms0.3 mV/ms0.4 mV/ms0.6 mV/ms1.2 mV/ms
% of IpeakVpeak (mV)% of IpeakVpeak (mV)% of IpeakVpeak (mV)% of IpeakVpeak (mV)% of IpeakVpeak (mV)% of IpeakVpeak (mV)
WT (n = 7)0.608 ± 0.15−45.3 ± 2.30.843 ± 0.20−44.8 ± 1.81.22 ± 0.28−44.5 ± 1.51.94 ± 0.45−44.0 ± 1.83.46 ± 0.83−41.6 ± 1.89.20 ± 1.7−38.5 ± 1.9
R1279P (n = 25)1.61 ± 0.15**−40.4 ± 0.84*1.96 ± 0.20**−40.0 ± 1.1*2.53 ± 0.24**−39.6 ± 0.96*3.55 ± 0.37*−39.0 ± 0.93*5.82 ± 0.57−37.5 ± 0.88*13.2 ± 1.0−33.8 ± 1.1*
Δ2.65X**4.9 mV*2.33X**4.8 mV*2.07X**4.9 mV*1.83X*5.0 mV*1.68X4.1 mV*1.43X4.7 mV*
  • *p < 0.05 versus WT channels;

  • **p < 0.01 versus WT channels.