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. 2003 Jan 24;547(Pt 3):691–698. doi: 10.1113/jphysiol.2002.033928

Table 1.

The midpoint of steady-state of fast inactivation (Inactivation V0.5(mV))and steady-state activation curves (Activation V0.5(mV)), time course of fast inactivation (τh1(ms)) and recovery from inactivation (τrec (ms))

35°C 25°C 15°C
Inactivation V0.5 (mV)
  WT −51.4 ± 0.6 −51.5 ± 0.4 −50.7 ± 1.5
  MV −61.8 ± 3.0 −63.6 ± 3.4 −61.8 ± 1.3
  RH −64.5 ± 2.9 −62.3 ± 5.9 −62.4 ± 1.2
Activation V0.5 (mV)
  WT −15.0 ± 1.8 −13.9 ± 0.6 −15.1 ± 2.8
  MV −14.8 ± 1.9 −13.8 ± 0.5 −15.0 ± 3.4
  RH −18.2 ± 1.5 −21.7 ± 0.9 −36.3 ± 0.7
τh1 (ms)
  WT 0.17 ± 0.01 0.22 ± 0.01 0.66 ± 0.03
  MV 0.25 ± 0.03 0.55 ± 0.01 0.87 ± 0.05
  RH 0.8 ± 0.2 1.32 ± 0.11 3.44 ± 1.15
τrec (ms)
  WT 1.06 ± 0.53 1.6 ± 0.59 6.45 ± 0.53
  MV 0.72 ± 0.26 1.50 ± 0.33 3.45 ± 0.46
  RH 0.57 ± 0.3 1.19 ± 0.2 2.91 ± 0.3

The data are means ±s.e.m. for all three channel types and at three temperatures (15,25 and 35 °C).