Table 2.
Baseline gating parameters of NaChBac single-cysteine mutants
NaChBac mutantActivationInactivation
V1/2ZV1/2Z
 mV e0  mV e0 
WT −33.93 ± 1.26 3.34 ± 0.19  −54.08 ± 0.53 6.73 ± 0.28 
V40C −28.15 ± 1.62 3.29 ± 0.38  −47.34 ± 1.96*** 6.19 ± 0.32 
S129C −41.68 ± 2.64 1.66 ± 0.17*  −77.84 ± 0.65*** 3.66 ± 0.33* 
T189C −40.48 ± 1.09 4.23 ± 0.82  −58.04 ± 1.22 7.01 ± 0.33 
F227C −32.56 ± 4.36 2.18 ± 0.21  −60.84 ± 1.73** 5.07 ± 0.57* 
NaChBac mutantActivationInactivation
V1/2ZV1/2Z
 mV e0  mV e0 
WT −33.93 ± 1.26 3.34 ± 0.19  −54.08 ± 0.53 6.73 ± 0.28 
V40C −28.15 ± 1.62 3.29 ± 0.38  −47.34 ± 1.96*** 6.19 ± 0.32 
S129C −41.68 ± 2.64 1.66 ± 0.17*  −77.84 ± 0.65*** 3.66 ± 0.33* 
T189C −40.48 ± 1.09 4.23 ± 0.82  −58.04 ± 1.22 7.01 ± 0.33 
F227C −32.56 ± 4.36 2.18 ± 0.21  −60.84 ± 1.73** 5.07 ± 0.57* 

Values are given as mean ± SEM (n = 4–12). Gating parameters of NaChBac WT versus each mutant, evaluated by one-way ANOVA with Bonferroni post hoc correction: *, P < 0.05; **, P < 0.01; ***, P < 0.0001.

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