Steady-state activation
| Channel | V1/2 | k | n |
| hERG1a | −27.2 ± 0.2 | 8.59 ± 0.15 | 4 |
| hERG1b | −26 ± 0.9 | 10.48 ± 0.8 | 3 |
| hERG1b + 1–135 | −34.84 ± 0.54 | 8.91 ± 0.47 | 3 |
| hERG1b + 1–181 | −49.48 ± 0.49 | 8.04 ± 0.35 | 3 |
| hERG1b + 1–228 | −37.09 ± 1.43 | 10.13 ± 1.31 | 4 |
| hERG1b + 1–319 | −41.69 ± 0.13 | 7.5 ± 0.14 | 5 |
| hERG1b + 1–365 | −43.88 ± 0.32 | 8.02 ± 0.3 | 5 |
| Channel | V1/2 | k | n |
| hERG1a | −27.2 ± 0.2 | 8.59 ± 0.15 | 4 |
| hERG1b | −26 ± 0.9 | 10.48 ± 0.8 | 3 |
| hERG1b + 1–135 | −34.84 ± 0.54 | 8.91 ± 0.47 | 3 |
| hERG1b + 1–181 | −49.48 ± 0.49 | 8.04 ± 0.35 | 3 |
| hERG1b + 1–228 | −37.09 ± 1.43 | 10.13 ± 1.31 | 4 |
| hERG1b + 1–319 | −41.69 ± 0.13 | 7.5 ± 0.14 | 5 |
| hERG1b + 1–365 | −43.88 ± 0.32 | 8.02 ± 0.3 | 5 |
V1/2, voltage at half-maximal activation; k, slope; n, number of oocytes.