Table 2.
Quantitative parameters of scaling relationships for cloned and native T-type Ca2+ channels
| a | b | |||
|---|---|---|---|---|
| Cav3.1 | −25 mV | τfast | 0.011 | 0.330 |
| τslow | 0.162 | 0.368 | ||
| −55 mV | τfast | 0.093 | 0.114 | |
| τslow | 0.366 | 0.288 | ||
| Cav3.2 | −25 mV | τfast | 0.377 | 0.214 |
| τslow | 1.460 | 0.313 | ||
| −55 mV | τfast | 0.601 | 0.123 | |
| τslow | 3.036 | 0.202 | ||
| Cav3.3 | −65 mV | τfast | 0.173 | 0.147 |
| τslow | 0.531 | 0.316 | ||
| LGN neurones | −70 mV | τfast | 0.137 | 0.117 |
| τslow | 0.217 | 0.404 |
The relation between the time constants of recovery from inactivation τ and the duration of conditioning prepulses (tpre) is given by the power law relation τ(tpre) =a(tpre/a)b. Values for the constant kinetic setpoint a and the scaling power b are given for both τfast and τslow. Voltage values in leftmost column refer to the voltage of the conditioning prepulses.