IC50, ΔG, and ΔΔG for binding of external TEA to L70A/N8 and L70A/tL70Y tetramers at −60 mV
| Homo- or heterotetramers | IC50 | ΔG | ΔΔGa |
| mM | kJ·mol−1 | kJ·mol−1 | |
| L70A/N8 | |||
| L70A4 | 45 ± 7 | 7.60 | NA |
| L70A3N81 | 8.5 ± 1.2 | 11.7 | 4.1 |
| L70A2N82 | 1.3 ± 0.2 | 16.3 | 4.6 |
| L70A1N83 | 0.34 ± 0.02 | 19.6 | 3.3 |
| N84 | 0.11 ± 0.02 | 22.4 | 2.8 |
| L70A/tL70Y | |||
| L70A4 | 44 ± 6 | 7.66 | NA |
| L70A3tL70Y1 | 16 ± 3 | 10.1 | 2.5 |
| L70A2tL70Y2 | 5.9 ± 0.4 | 12.6 | 2.4 |
| L70A1tL70Y3 | 1.8 ± 0.2 | 15.5 | 2.9 |
| tL70Y4 | 0.83 ± 0.17 | 17.4 | 1.9 |
| Homo- or heterotetramers | IC50 | ΔG | ΔΔGa |
| mM | kJ·mol−1 | kJ·mol−1 | |
| L70A/N8 | |||
| L70A4 | 45 ± 7 | 7.60 | NA |
| L70A3N81 | 8.5 ± 1.2 | 11.7 | 4.1 |
| L70A2N82 | 1.3 ± 0.2 | 16.3 | 4.6 |
| L70A1N83 | 0.34 ± 0.02 | 19.6 | 3.3 |
| N84 | 0.11 ± 0.02 | 22.4 | 2.8 |
| L70A/tL70Y | |||
| L70A4 | 44 ± 6 | 7.66 | NA |
| L70A3tL70Y1 | 16 ± 3 | 10.1 | 2.5 |
| L70A2tL70Y2 | 5.9 ± 0.4 | 12.6 | 2.4 |
| L70A1tL70Y3 | 1.8 ± 0.2 | 15.5 | 2.9 |
| tL70Y4 | 0.83 ± 0.17 | 17.4 | 1.9 |
The mean value of ΔΔG was 3.7 ± 0.8 kJ·mol−1 for the L70A/N8 tetramers and 2.4 ± 0.4 kJ·mol−1 for the L70A/tL70Y tetramers.