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Activation time constants (τ act ) and p-values for the HCN4 channels. N.D.; not determined.
| τ act (ms) | P (vs. 4) | P (vs. 4L) | |
|---|---|---|---|
| HsHCN4 | 957 ± 52 | < 0.001 | < 0.001 |
| DrHCN4 | 521 ± 27 | — | 0.003 |
| DrHCN4L | 272 ± 11 | 0.003 | — |
| DrHCN4-4L | 357 ± 29 | 0.070 | 0.587 |
| DrHCN4L-4 | 478 ± 63 | 0.942 | 0.015 |
| DrHCN4 EA | 2117 ± 657 | 0.072 | N.D. |
| DrHCN4L EA | 668 ± 44 | N.D. | < 0.001 |
