Table 2. Summary of ITC data.
Cell | Kd (nM) | ΔH | ΔS | n value | n |
---|---|---|---|---|---|
Kcal/mol | cal/mol/deg | ||||
NaV1.5 | |||||
WT | 99 ± 4 | −10.5 ± 0.1 | −3.6 ± 0.2 | 0.99 ± 0.02 | 4 |
D1790G | 128 ± 36 | −10.5 ± 0.6 | −2.4 ± 1.1 | 0.25 ± 0.04 | 3 |
Y1795C | 283 ± 8a | −7.43 ± 0.2 | 4.6 ± 0.5 | 0.92 ± 0.02 | 3 |
Y1795H | 103 ± 4 | −10.2 ± 0.2 | −3.0 ± 0.6 | 0.76 ± 0.02 | 3 |
E1901Q | 243 ± 9a | −9.0 ± 0.2 | −0.5 ± 0.6 | 0.85 ± 0.00 | 3 |
Q1909R | 32,600 ± 1,300a | −14.9 ± 3.9 | −37 ± 10 | 0.04 ± 0.02 | 3 |
R1913H | 2,980 ± 570a | −9.0 ± 0.3 | −5.3 ± 1.2 | 0.73 ± 0.03 | 3 |
L1917K | 75 ± 29 | −9.8 ± 1.0 | −3.0 ± 0.6 | 0.98 ± 0.08 | 3 |
IQ/AA | Not detected | - | - | - | 3 |
NaV1.2 | |||||
WT | 36 ± 6 | −4.54 ± 0.1 | 18.6 ± 0.6 | 1.02 ± 0.02 | 3 |
H1853R | 172 ± 20a | −8.3 ± 0.2 | 2.6 ± 1.0 | 0.30 ± 0.05 | 3 |
R1918H | 112 ± 20a | −7.5 ± 0.2 | 6.2 ± 0.9 | 0.90 ± 0.40 | 3 |
NaV1.6 | |||||
WT | 276 ± 63b | −17.5 ± 0.3 | −29.5 ± 1.1 | 0.24 ± 0.01 | 3 |
IQ/AA, IQ1908-1909AA.
P < 0.01 compared with WT.
P < 0.01 compared with NaV1.5 WT.