Allosteric RegulationReceptor, Adenosine A1AdenosineAllosteric SiteReceptor, Adenosine A2AReceptor, Adenosine A3Receptors, Metabotropic GlutamateAlcuroniumAdenosine DeaminaseGABA ModulatorsReceptor, Metabotropic Glutamate 5Adenosine A1 Receptor AntagonistsAdenosine A2 Receptor AntagonistsReceptor, Adenosine A2BPhthalimidesAdenosine KinaseReceptors, Adenosine A2alpha7 Nicotinic Acetylcholine ReceptorRadioligand AssayReceptors, Purinergic P1Adenosine A2 Receptor AgonistsDose-Response Relationship, DrugGallamine TriethiodidePurinergic P1 Receptor AntagonistsN-MethylscopolamineReceptors, GABA-AStructure-Activity RelationshipIsoxazolesAdenosine A1 Receptor AgonistsLigandsReceptors, NicotinicRats, Sprague-DawleyXanthinesAdenosine MonophosphateReceptors, Calcium-SensingCholinergic AgentsReceptor, Muscarinic M4Nicotinic AntagonistsGABA-A Receptor AgonistsReceptor, Muscarinic M1PiperidinesMSH Release-Inhibiting HormoneBinding SitesCHO CellsPurinergic P1 Receptor AgonistsBenzodiazepinesExcitatory Amino Acid AntagonistsHEK293 CellsBenzothiadiazinesCricetinaeCricetulusModels, MolecularProtein Binding