Interchange of adenyl and guanyl cyclases as an explanation for transformation of Beta- to alpha-adrenergic responses in the rat atrium.

Adenylyl Cyclases/metabolism Adrenergic alpha-Agonists/metabolism Adrenergic alpha-Antagonists/metabolism Adrenergic beta-Agonists/metabolism Adrenergic beta-Antagonists/metabolism Animals Epinephrine/pharmacology Guanylate Cyclase/metabolism Heart Atria/drug effects In Vitro Techniques Isoproterenol/pharmacology Myocardium/metabolism Norepinephrine/pharmacology Phentolamine/pharmacology Propranolol/pharmacology Rats Receptors, Adrenergic Temperature

Adrenergic alpha-Agonists Adrenergic alpha-Antagonists Adrenergic beta-Agonists Adrenergic beta-Antagonists Receptors, Adrenergic Propranolol Adenylyl Cyclases Guanylate Cyclase Isoproterenol Norepinephrine Epinephrine Phentolamine