Table 2.

Descriptive statistics of parameters obtained from fitting voltage dependence of activation and SSFI with the Boltzmann equation

Voltage dependence of activationVoltage dependence of SSFIIntersection of activation and SSFI Boltzmann fit curves (mV)Window current (AUC in mV)n
V50act (mV)kact (1/mv)nV50inact (mV)kinact (1/mV)Fraction of channels remaining open after SSFI (%)n
Nav1.1 −28.9 ± 4.3 8.3 ± 1.1 27 −74.3 ± 5.0 −5.6 ± 1.1 4.3 ± 5.5 27 −56.1 ± 4.6 1.398 ± 1.054 27 
Nav1.2 −29.2 ± 5.6 8.0 ± 1.0 27 −77.9 ± 6.0 −5.8 ± 0.9 3.3 ± 4.5 27 −57.7 ± 5.6 1.073 ± 0.861 27 
Nav1.3 −29.5 ± 4.9 7.8 ± 0.9 27 −76.2 ± 5.9 −6.7 ± 0.7 2.1 ± 3.5 27 −54.7 ± 4.3 0.989 ± 0.661 27 
Nav1.5 −53.3 ± 3.5 7.8 ± 0.7 27 −104.5 ± 5.7 −5.6 ± 0.7 5.9 ± 5.7 27 −83.1 ± 4.6 1.484 ± 1.156 27 
Nav1.6 −33.8 ± 4.2 7.3 ± 0.5 27 −77.9 ± 5.2 −6.9 ± 1.4 5.0 ± 3.3 27 −56.6 ± 4.7 1.598 ± 0.608 27 
Nav1.7 −33.3 ± 5.6 7.9 ± 0.8 27 −84.9 ± 6.3 −6.6 ± 1.3 5.5 ± 6.2 27 −61.6 ± 5.6 1.533 ± 1.195 27 
Nav1.8 −3.1 ± 4.5 11.8 ± 0.9 25 −66.6 ± 5.4 −9.3 ± 1.4 7.1 ± 5.5 26 −38.9 ± 5.1 2.401 ± 1.079 25 
Nav1.9a −52.3 ± 9.8 11.0 ± 3.2 24 −68.9 ± 10.3 −12.2 ± 4.9 22.4 ± 9.8 17 −61.0 ± 6.3 12.952 ± 4.114 15 
Voltage dependence of activationVoltage dependence of SSFIIntersection of activation and SSFI Boltzmann fit curves (mV)Window current (AUC in mV)n
V50act (mV)kact (1/mv)nV50inact (mV)kinact (1/mV)Fraction of channels remaining open after SSFI (%)n
Nav1.1 −28.9 ± 4.3 8.3 ± 1.1 27 −74.3 ± 5.0 −5.6 ± 1.1 4.3 ± 5.5 27 −56.1 ± 4.6 1.398 ± 1.054 27 
Nav1.2 −29.2 ± 5.6 8.0 ± 1.0 27 −77.9 ± 6.0 −5.8 ± 0.9 3.3 ± 4.5 27 −57.7 ± 5.6 1.073 ± 0.861 27 
Nav1.3 −29.5 ± 4.9 7.8 ± 0.9 27 −76.2 ± 5.9 −6.7 ± 0.7 2.1 ± 3.5 27 −54.7 ± 4.3 0.989 ± 0.661 27 
Nav1.5 −53.3 ± 3.5 7.8 ± 0.7 27 −104.5 ± 5.7 −5.6 ± 0.7 5.9 ± 5.7 27 −83.1 ± 4.6 1.484 ± 1.156 27 
Nav1.6 −33.8 ± 4.2 7.3 ± 0.5 27 −77.9 ± 5.2 −6.9 ± 1.4 5.0 ± 3.3 27 −56.6 ± 4.7 1.598 ± 0.608 27 
Nav1.7 −33.3 ± 5.6 7.9 ± 0.8 27 −84.9 ± 6.3 −6.6 ± 1.3 5.5 ± 6.2 27 −61.6 ± 5.6 1.533 ± 1.195 27 
Nav1.8 −3.1 ± 4.5 11.8 ± 0.9 25 −66.6 ± 5.4 −9.3 ± 1.4 7.1 ± 5.5 26 −38.9 ± 5.1 2.401 ± 1.079 25 
Nav1.9a −52.3 ± 9.8 11.0 ± 3.2 24 −68.9 ± 10.3 −12.2 ± 4.9 22.4 ± 9.8 17 −61.0 ± 6.3 12.952 ± 4.114 15 

Data are shown as mean ± SD.

a

Nav1.9 Boltzmann values were derived from pooled previously published data from Leipold et al. (2013) and Leipold et al. (2015).

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