RMP, mV | R_{i}, MΩ | Threshold, mV | Amplitude, mV | APD_{50}, ms | APD_{90}, ms | Upstroke velocity, mV/ms | Downstroke velocity, mV/ms | n | |
---|---|---|---|---|---|---|---|---|---|

1^{st} AP | |||||||||

WT | −65.8 ± 1.1 | 111.8 ± 10.9 | −40.4 ± 1.4 | 42.1 ± 1.7 | 0.8 ± 0.1 | 2.5 ± 0.1 | 268.0 ± 9.1 | −77.5 ± 3.5 | 20 |

D/+ | −66.1 ± 1.2 | 112.6 ± 11.2 | −41.3 ± 4.2 | 47.3 ± 1.4^{a} | 2.5 ± 0.2^{a} | 7.1 ± 0.7^{a} | 190.2 ± 19.4^{a} | −34.6 ± 2.2^{a} | 20 |

D/D | −65.7 ± 2.1 | 110.7 ± 13.2 | −41.6 ± 1.2 | 46.4 ± 1.3^{a} | 3.3 ± 0.2^{a,b} | 9.6 ± 1.2^{a} | 168.6 ± 5.8^{a,b} | −21.4 ± 2.7^{a,b} | 21 |

2^{nd} AP | |||||||||

WT | −37.4 ± 0.9 | 40.9 ± 0.9 | 1.4 ± 0.1 | 2.9 ± 0.1 | 218.0 ± 10.2^{c} | −48.6 ± 2.5^{c} | 20 | ||

D/+ | −36.5 ± 1.1^{c} | 33.6 ± 2.9^{a,c} | 4.8 ± 0.8^{a,c} | 8.7 ± 0.7^{a,c} | 100.2 ± 22.0^{a,c} | −19.2 ± 2.9^{a,c} | 20 | ||

D/D | −32.8 ± 1.8^{a,c} | 25.4 ± 0.9^{a,b,c} | 7.7 ± 0.5^{a,b,c} | 14.4 ± 1.2^{a,b,c} | 55.6 ± 7.1^{a,b,c} | −12.8 ± 2.6^{a,b,c} | 21 | ||

3^{rd} AP | |||||||||

WT | −37.9 ± 0.9 | 41.4 ± 2.7 | 1.3 ± 0.8 | 2.9 ± 0.2 | 229.7 ± 11.8^{c} | −59.3 ± 1.2^{c} | 20 | ||

D/+ | −35.9 ± 1.7^{c} | 38.3 ± 1.8^{c,d} | 5.2 ± 0.6^{a,c} | 9.7 ± 1.7^{a,c} | 98.5 ± 17.9^{a,c} | −19.0 ± 1.9^{a,c} | 20 | ||

D/D | −31.1 ± 1.1^{a,b,c} | 32.9 ± 1.1^{a,b,c,d} | 8.2 ± 1.7^{a,b,c} | 14.1 ± 1.8^{a,b,c} | 53.7 ± 7.1^{a,b,c} | −13.0 ± 3.5^{a,b,c} | 21 |