Evidence of non-specificity of the Ca channel in mammalian myocardial fibre membranes. Substitution of Ca by Sr, Ba or Mg as charge carriers.
D000818:Animals; D001464:Barium / Q000494:pharmacology; D001693:Biological Transport, Active; D002118:Calcium / Q000378:metabolism*; D002415:Cats; D002462:Cell Membrane / Q000187:drug effects; D006352:Heart Ventricles; D008274:Magnesium / Q000494:pharmacology; D009206:Myocardium / Q000378:metabolism*; D013324:Strontium / Q000494:pharmacology; D014700:Verapamil / Q000494:pharmacology
D001464:Barium; D014700:Verapamil; D008274:Magnesium; D002118:Calcium; D013324:Strontium