title: Ligand specificity of state transitions in the cholinergic receptor: behavior of agonists and antagonists.
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D004557:Electric Organ / Q000187:drug effects; D066298:In Vitro Techniques; D007700:Kinetics; D008024:Ligands; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology; D011950:Receptors, Cholinergic / Q000187:drug effects* / Q000378:metabolism; D014118:Toxins, Biological / Q000378:metabolism
chemical_list: D008024:Ligands; D000644:Quaternary Ammonium Compounds; D011950:Receptors, Cholinergic; D014118:Toxins, Biological