Table 1.
Parameters of Boltzmann fit to G-V, SSI, and F-V curves for WT NaV1.5 or VCF constructs expressed with or without WT β1 or β3
ParameterDIDI + β1DI + β3DIIDII + β1DII + β3
G-V       
V1/2 −42.3 ± 1.7 −50.2 ± 1.0 −37.1 ± 1.8 −33.9 ± 2.2 −38.9 ± 3.0 −43.5 ± 2.2 
k [n] 8.16 ± 0.7 [5] 8.3 ± 0.6 [4] 9.7 ± 0.5 [4] 9.5 ± 0.2 [4] 8.5 ± 1.2 [9] −7.0 ± 0.5 [4] 
SSI       
V1/2 −96.3 ± 4.55 −78.6 ± 2.1 −79.6 ± 2.4 −88.8 ± 1.3 −79.2 ± 4.5 −86.4 ± 0.7 
k [n] −11.0 ± 1.1 [4] −6.4 ± 0.2 [8] −7.0 ± 0.4 [4] −8.2 ± 0.4 [4] −6.5 ± 0.9 [7] −6.1 ± 0.1 [4] 
F-V       
V1/2 −111.5 ± 1.0 −92.1 ± 11.4 −75.7 ± 4.6 −48.4 ± 2.7 −51.1 ± 3.5 −45.5 ± 5.0 
k [n] 21.3 ± 2.4 [4] 18.6 ± 2.3 [4] 15.3 ± 2.5 [4] 19.4 ± 0.7 [4] 23.1 ± 2.2 [6] 19.3 ± 0.8 [4] 
 DIII DIII + β1 DIII + β3 DIV DIV + β1 DIV + β3 
G-V       
V1/2 −43.7 ± 1.9 −40.0 ± 4.4 −39.2 ± 1.4 −36.8 ± 1.6 −34.6 ± 3.4 −38.2 ± 1.3 
k [n] 7.8 ± 0.6 [5] 9.4 ± 0.7 [13] 7.4 ± 0.5 [6] 8.9 ± 0.9 [4] 9.2 ± 0.6 [19] 7.2 ± 0.5 [5] 
SSI       
V1/2 −94.7 ± 1.9 −76.2 ± 2.5 −86.0 ± 1.6 −91.7 ± 3.4 −74.2 ± 3.1 −78.0 ± 1.6 
k [n] −9.8 ± 0.7 [4] −6.7 ± 0.4 [7] −7.6 ± 0.4 [4] −12.6 ± 0.9 [5] −10.3 ± 0.9 [13] −9.2 ± 0.5 [5] 
F-V       
V1/2 −120.7 ± 4.8 −122.1 ± 1.4 −98.0 ± 2.6 −88.2 ± 5.3 −56.8 ± 6.6 −63.2 ± 4 
k [n] 25.6 ± 0.7 [4] 24.3 ± 1.3 [5] 26.4 ± 2.0 [5] 23.6 ± 3.1 [4] 14.5 ± 2.5 [6] 14.4 ± 0.3 [4] 
 WT α WT α + β1 WT α + β3    
G-V       
V1/2 −35.8 ± 1.4 −34.6 ± 1.9 −30.4 ± 1.9    
k [n] 6.8 ± 0.2 [4] 7.2 ± 0.7 [5] 7.4 ± 0.3 [3]    
SSI       
V1/2 −84.8 ± 2.5 −74.0 ± 2.4 −75.2 ± 1.9    
k [n] −8.9 ± 0.7 [5] −5.7 ± 0.3 [4] −6.2 ± 0.3 [3]    
 WT LFS α WT LFS α + β1 WT LFS α + β3    
Q-V       
V1/2 −60.7 ± 6.9 −49.8 ± 3.1 −55.1 ± 2.3    
k [n] 25.9 ± 2.8 [4] 17.3 ± 1.2 [3] 17.3 ± 2.5 [8]    
ParameterDIDI + β1DI + β3DIIDII + β1DII + β3
G-V       
V1/2 −42.3 ± 1.7 −50.2 ± 1.0 −37.1 ± 1.8 −33.9 ± 2.2 −38.9 ± 3.0 −43.5 ± 2.2 
k [n] 8.16 ± 0.7 [5] 8.3 ± 0.6 [4] 9.7 ± 0.5 [4] 9.5 ± 0.2 [4] 8.5 ± 1.2 [9] −7.0 ± 0.5 [4] 
SSI       
V1/2 −96.3 ± 4.55 −78.6 ± 2.1 −79.6 ± 2.4 −88.8 ± 1.3 −79.2 ± 4.5 −86.4 ± 0.7 
k [n] −11.0 ± 1.1 [4] −6.4 ± 0.2 [8] −7.0 ± 0.4 [4] −8.2 ± 0.4 [4] −6.5 ± 0.9 [7] −6.1 ± 0.1 [4] 
F-V       
V1/2 −111.5 ± 1.0 −92.1 ± 11.4 −75.7 ± 4.6 −48.4 ± 2.7 −51.1 ± 3.5 −45.5 ± 5.0 
k [n] 21.3 ± 2.4 [4] 18.6 ± 2.3 [4] 15.3 ± 2.5 [4] 19.4 ± 0.7 [4] 23.1 ± 2.2 [6] 19.3 ± 0.8 [4] 
 DIII DIII + β1 DIII + β3 DIV DIV + β1 DIV + β3 
G-V       
V1/2 −43.7 ± 1.9 −40.0 ± 4.4 −39.2 ± 1.4 −36.8 ± 1.6 −34.6 ± 3.4 −38.2 ± 1.3 
k [n] 7.8 ± 0.6 [5] 9.4 ± 0.7 [13] 7.4 ± 0.5 [6] 8.9 ± 0.9 [4] 9.2 ± 0.6 [19] 7.2 ± 0.5 [5] 
SSI       
V1/2 −94.7 ± 1.9 −76.2 ± 2.5 −86.0 ± 1.6 −91.7 ± 3.4 −74.2 ± 3.1 −78.0 ± 1.6 
k [n] −9.8 ± 0.7 [4] −6.7 ± 0.4 [7] −7.6 ± 0.4 [4] −12.6 ± 0.9 [5] −10.3 ± 0.9 [13] −9.2 ± 0.5 [5] 
F-V       
V1/2 −120.7 ± 4.8 −122.1 ± 1.4 −98.0 ± 2.6 −88.2 ± 5.3 −56.8 ± 6.6 −63.2 ± 4 
k [n] 25.6 ± 0.7 [4] 24.3 ± 1.3 [5] 26.4 ± 2.0 [5] 23.6 ± 3.1 [4] 14.5 ± 2.5 [6] 14.4 ± 0.3 [4] 
 WT α WT α + β1 WT α + β3    
G-V       
V1/2 −35.8 ± 1.4 −34.6 ± 1.9 −30.4 ± 1.9    
k [n] 6.8 ± 0.2 [4] 7.2 ± 0.7 [5] 7.4 ± 0.3 [3]    
SSI       
V1/2 −84.8 ± 2.5 −74.0 ± 2.4 −75.2 ± 1.9    
k [n] −8.9 ± 0.7 [5] −5.7 ± 0.3 [4] −6.2 ± 0.3 [3]    
 WT LFS α WT LFS α + β1 WT LFS α + β3    
Q-V       
V1/2 −60.7 ± 6.9 −49.8 ± 3.1 −55.1 ± 2.3    
k [n] 25.9 ± 2.8 [4] 17.3 ± 1.2 [3] 17.3 ± 2.5 [8]    

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