Evidence for two alpha-adrenergic binding sites in liver plasma membranes. Studies with [3H]epinephrine and [3H]dihydroergocryptine.

Adrenergic alpha-Antagonists/pharmacology Adrenergic beta-Antagonists/pharmacology Animals Binding, Competitive Calcium/metabolism Cell Membrane/drug effects,metabolism Dihydroergotoxine/metabolism Epinephrine/metabolism In Vitro Techniques Kinetics Liver/metabolism Norepinephrine/metabolism Phosphorylases/metabolism Rats Receptors, Adrenergic/metabolism Receptors, Adrenergic, alpha/metabolism

Adrenergic alpha-Antagonists Adrenergic beta-Antagonists Receptors, Adrenergic Receptors, Adrenergic, alpha Dihydroergotoxine Phosphorylases Calcium Norepinephrine Epinephrine