Permeation of divalent cations through the Ca2+ channel of rabbit portal vein myocytes.

@article{Katzka1992PermeationOD,
  title={Permeation of divalent cations through the Ca2+ channel of rabbit portal vein myocytes.},
  author={D A Katzka and Ray E Cox and Amy J Davidoff and Martin Morad},
  journal={The American journal of physiology},
  year={1992},
  volume={262 2 Pt 2},
  pages={H326-30}
}
The divalent selectivity of the Ca2+ channel in the rabbit portal vein myocyte was examined by the whole cell clamp method. A concentration-dependent selectivity of divalent ion permeation was found such that when Ca2+ was replaced by Ba2+ or Sr2+, the order of maximum current was Ca2+ = Ba2+ greater than Sr2+ at 2 mM and Ba2+ greater than Sr2+ greater than… CONTINUE READING