Summary of electrophysiological parameters determined for Nav1.3, Nav1.5, Nav1.6, and Nav1.7
| . | Nav1.3 . | Nav1.5 . | Nav1.6 . | Nav1.7 . | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15°C | 25°C | 35°C | 15°C | 25°C | 35°C | 15°C | 25°C | 35°C | 15°C | 25°C | 35°C | |
| Activation parameter | ||||||||||||
| V1/2 (mV) | −18.8 ± 0.5 | −25.0 ± 0.6 | −28.3 ± 0.6 | −42.5 ± 0.7 | −48.9 ± 0.4 | −51.2 ± 0.6 | −28.9 ± 0.6 | −33.5 ± 0.5 | −34.3 ± 0.8 | −27.5 ± 0.7 | −32.0 ± 0.5 | −- 35.4 ± 0.5 |
| k | 8.2 ± 0.1 | 6.0 0.2 | 4.7 ± 0.2 | 6.6 ± 0.2 | 4.7 ± 0.2 | 4.5 ± 0.2 | 5.3 ± 0.2 | 3.9 ± 0.2 | 4.6 ± 0.2 | 6.3 ± 0.2 | 4.5 ± 0.2 | 4.2 ± 0.2 |
| Time-to-peak (ms) (0 mV) | 1.36 ± 0.05 | 0.53 ± 0.02 | n.a. | 0.78 ± 0.02 | 0.47 ± 0.01 | n.a. | 0.68 ± 0.01 | 0.45 ± 0.01 | n.a. | 0.64 ± 0.01 | 0.38 ± 0.005 | n.a. |
| n | 90 | 84 | 64 | 80 | 77 | 50 | 71 | 36 | 38 | 94 | 80 | 85 |
| Inactivation parameter | ||||||||||||
| V1/2(mV) | −68.6 ± 0.5 | −69.5 ± 0.7 | −67.4 ± 0.6 | −82.7 ± 0.6 | −82.4 ± 0.4 | −84.1 ± 0.8 | −65.9 ± 0.6 | −62.0 ± 0.5 | −64.2 ± 0.8 | −76.2 ± 0,9 | −75.4 ± 0.5 | −76.1 ± 0.7 |
| k | −11.5 ± 0.2 | −9.2 ± 0.1 | −8.0 ± 0.1 | −8.3 ± 0.1 | −6.1 ± 0.1 | −5.6 ± 0.1 | −7.55 ± 0.1 | −6.0 ± 0.1 | −6.3 ± 0.1 | −10.3 ± 0.3 | −7.0 ± 0.1 | −7.3 ± 0.1 |
| n | 93 | 102 | 99 | 94 | 128 | 96 | 71 | 78 | 74 | 138 | 135 | 121 |
| Inactivation kinetics | ||||||||||||
| τ (ms) (0 mV) | 4.80 | 1.20 | 0.54 | 1.72 | 0.70 | 0.42 | 1.49 | 0.69 | 0.38 | 1.13 | 0.53 | 0.28 |
| n | 90 | 78 | 59 | 80 | 76 | 48 | 71 | 35 | 36 | 93 | 76 | 79 |
| Max Ipers(% from Imax) | 21.0 ± 0.6 | 5.2 ± 0.2 | 1.1 ± 0.1 | 6.4 ± 0.3 | 2.0 ± 0.1 | 0.9 ± 0.1 | 3.6 ± 0.2 | 1.2 ± 0.1 | n.a. | 2.5 ± 0.3 | 0.7 ± 0.1 | n.a. |
| n | 90 | 79 | 64 | 80 | 77 | 50 | 71 | 36 | n.a. | 94 | 76 | 81 |
| Recovery from fast inactivation | ||||||||||||
| % τ fast | 76.3 | 69.9 | 37.1 | 71.0 | 70.1 | 62.3 | 81 | 75.3 | 39.5 | 87.0 | 81.4 | 51.0 |
| τ fast (ms) | 19.7 | 7.6 | 3.5 | 93.1 | 34.0 | 23.5 | 10.2 | 2.7 | 2.7 | 49.2 | 13.3 | 8.5 |
| τ slow (ms) | 250.9 | 285.5 | 193.4 | 570.0 | 287.4 | 246.8 | 398.6 | 303.9 | 252.3 | 447.8 | 428.8 | 621.9 |
| n | 58 | 75 | 64 | 48 | 101 | 66 | 47 | 70 | 25 | 74 | 87 | 61 |
| . | Nav1.3 . | Nav1.5 . | Nav1.6 . | Nav1.7 . | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15°C | 25°C | 35°C | 15°C | 25°C | 35°C | 15°C | 25°C | 35°C | 15°C | 25°C | 35°C | |
| Activation parameter | ||||||||||||
| V1/2 (mV) | −18.8 ± 0.5 | −25.0 ± 0.6 | −28.3 ± 0.6 | −42.5 ± 0.7 | −48.9 ± 0.4 | −51.2 ± 0.6 | −28.9 ± 0.6 | −33.5 ± 0.5 | −34.3 ± 0.8 | −27.5 ± 0.7 | −32.0 ± 0.5 | −- 35.4 ± 0.5 |
| k | 8.2 ± 0.1 | 6.0 0.2 | 4.7 ± 0.2 | 6.6 ± 0.2 | 4.7 ± 0.2 | 4.5 ± 0.2 | 5.3 ± 0.2 | 3.9 ± 0.2 | 4.6 ± 0.2 | 6.3 ± 0.2 | 4.5 ± 0.2 | 4.2 ± 0.2 |
| Time-to-peak (ms) (0 mV) | 1.36 ± 0.05 | 0.53 ± 0.02 | n.a. | 0.78 ± 0.02 | 0.47 ± 0.01 | n.a. | 0.68 ± 0.01 | 0.45 ± 0.01 | n.a. | 0.64 ± 0.01 | 0.38 ± 0.005 | n.a. |
| n | 90 | 84 | 64 | 80 | 77 | 50 | 71 | 36 | 38 | 94 | 80 | 85 |
| Inactivation parameter | ||||||||||||
| V1/2(mV) | −68.6 ± 0.5 | −69.5 ± 0.7 | −67.4 ± 0.6 | −82.7 ± 0.6 | −82.4 ± 0.4 | −84.1 ± 0.8 | −65.9 ± 0.6 | −62.0 ± 0.5 | −64.2 ± 0.8 | −76.2 ± 0,9 | −75.4 ± 0.5 | −76.1 ± 0.7 |
| k | −11.5 ± 0.2 | −9.2 ± 0.1 | −8.0 ± 0.1 | −8.3 ± 0.1 | −6.1 ± 0.1 | −5.6 ± 0.1 | −7.55 ± 0.1 | −6.0 ± 0.1 | −6.3 ± 0.1 | −10.3 ± 0.3 | −7.0 ± 0.1 | −7.3 ± 0.1 |
| n | 93 | 102 | 99 | 94 | 128 | 96 | 71 | 78 | 74 | 138 | 135 | 121 |
| Inactivation kinetics | ||||||||||||
| τ (ms) (0 mV) | 4.80 | 1.20 | 0.54 | 1.72 | 0.70 | 0.42 | 1.49 | 0.69 | 0.38 | 1.13 | 0.53 | 0.28 |
| n | 90 | 78 | 59 | 80 | 76 | 48 | 71 | 35 | 36 | 93 | 76 | 79 |
| Max Ipers(% from Imax) | 21.0 ± 0.6 | 5.2 ± 0.2 | 1.1 ± 0.1 | 6.4 ± 0.3 | 2.0 ± 0.1 | 0.9 ± 0.1 | 3.6 ± 0.2 | 1.2 ± 0.1 | n.a. | 2.5 ± 0.3 | 0.7 ± 0.1 | n.a. |
| n | 90 | 79 | 64 | 80 | 77 | 50 | 71 | 36 | n.a. | 94 | 76 | 81 |
| Recovery from fast inactivation | ||||||||||||
| % τ fast | 76.3 | 69.9 | 37.1 | 71.0 | 70.1 | 62.3 | 81 | 75.3 | 39.5 | 87.0 | 81.4 | 51.0 |
| τ fast (ms) | 19.7 | 7.6 | 3.5 | 93.1 | 34.0 | 23.5 | 10.2 | 2.7 | 2.7 | 49.2 | 13.3 | 8.5 |
| τ slow (ms) | 250.9 | 285.5 | 193.4 | 570.0 | 287.4 | 246.8 | 398.6 | 303.9 | 252.3 | 447.8 | 428.8 | 621.9 |
| n | 58 | 75 | 64 | 48 | 101 | 66 | 47 | 70 | 25 | 74 | 87 | 61 |
n.a., not available.