Properties of Voltage-gated Calcium Channels

Channel Type L T N P Q R
Conductance (pS) 25 5-9 ~ 20 9-19 16 -
Activation Threshold High Low High High High High
Deactivation Rate Fast Slow Fast Fast Fast Fast
Inactivation Rate Slow Fast Moderate Very Slow Moderate Fast
Permeability Ba2+ > Ca2+ Ba2+ = Ca2+ Ba2+ > Ca2+ Ba2+ > Ca2+ Ba2+ > Ca2+ Ba2+ > Ca2+

References

Perez-Reyes and Schneider (1994) Calcium channels: structure, function, and classification. Drug Dev.Res. 33 295. Catterall (1995) Structure and function of voltage-gated ion channels. Ann.Rev.Biochem. 64 493.