Table 2. Estimated half-maximal inhibitory concentrations (IC50) of TTX for each Nav1.6 construct.
IC50 values are shown as the concentration (mean ± SEM) of TTX (µM) that blocked half of the channels, estimated from the dose-response curve. The IC50 ratio was taken as the fold increase in TTX resistance.
Construct | N | IC50 | IC50 Ratio |
---|---|---|---|
Mouse Nav1.6 | 21 | 1.25 ± 0.09 | 1 |
DI (Y371A) | 17 | 763.7 ± 284 | 609 |
DIII (V1407I) | 13 | 2.34 ± 0.23 | 1.2 |
DIV (I1699V) | 15 | 4.73 ± 0.42 | 2.0 |
Triple mutant | 20 | 3551 ± 469 | 2832.4 |