title: Cardiac muscarinic cholinergic receptor sites: opposing regulation by divalent cations and guanine nucleotides of receptor-agonist interaction.
mesh_terms: D000818:Animals; D001285:Atropine / Q000378:metabolism; D001665:Binding Sites / Q000187:drug effects; D002118:Calcium / Q000494:pharmacology*; D002217:Carbachol / Q000378:metabolism; D004305:Dose-Response Relationship, Drug; D006160:Guanosine Triphosphate / Q000494:pharmacology*; D066298:In Vitro Techniques; D008274:Magnesium / Q000494:pharmacology*; D009206:Myocardium / Q000378:metabolism*; D051381:Rats; D011950:Receptors, Cholinergic / Q000187:drug effects*; D011976:Receptors, Muscarinic / Q000187:drug effects* / Q000378:metabolism
chemical_list: D011950:Receptors, Cholinergic; D011976:Receptors, Muscarinic; D001285:Atropine; D006160:Guanosine Triphosphate; D002217:Carbachol; D008274:Magnesium; D002118:Calcium