Differential modification of the interaction of cardiac muscarinic cholinergic and beta-adrenergic receptors with a guanine nucleotide binding component(s).

Adenylyl Cyclases/metabolism Animals Ethylmaleimide/metabolism Female Guanine Nucleotides/metabolism In Vitro Techniques Magnesium/metabolism Male Membranes/metabolism Myocardium/metabolism Protein Binding Rats Rats, Inbred Strains Receptors, Adrenergic/drug effects Receptors, Adrenergic, beta/drug effects Receptors, Cholinergic/drug effects Receptors, Muscarinic/drug effects

Guanine Nucleotides Receptors, Adrenergic Receptors, Adrenergic, beta Receptors, Cholinergic Receptors, Muscarinic Adenylyl Cyclases Magnesium Ethylmaleimide