Allosteric SiteReceptor, Muscarinic M1Receptor, Muscarinic M3Allosteric RegulationReceptors, MuscarinicReceptor, Muscarinic M2Muscarinic AntagonistsMuscarinic AgonistsReceptor, Muscarinic M4N-MethylscopolamineGallamine TriethiodideReceptor, Muscarinic M5PhthalimidesDiaminesObidoxime ChlorideCarbacholParasympatholyticsPirenzepineRadioligand AssayIsoindolesTacrineAcetylcholineAtropineDiphenylacetic AcidsCholinergic AgentsPhosphofructokinasesCHO CellsCholinergic AgonistsThiadiazolesKineticsPiperidinesModels, MolecularMuscarineLigandsBinding SitesCricetinaeDioxolanesScopolamine DerivativesProtein BindingScopolamine HydrobromideBinding, CompetitiveCricetulusGlycogen Phosphorylase, Muscle FormParasympathomimeticsProtein ConformationDicyclomineBethanecholCatalytic DomainAdenosine MonophosphateDose-Response Relationship, DrugBiperidenFructose-BisphosphataseOxotremorineFructosediphosphatesMuscle, SmoothPilocarpineMethacholine ChlorideCrystallography, X-RayGuinea PigsMaltaMolecular StructureProtein Structure, TertiaryProtein Structure, QuaternaryAmino Acid SequenceMutagenesis, Site-DirectedStructure-Activity RelationshipTracheaRibonucleotide ReductasesGTP-Binding ProteinsCyclic Nucleotide Phosphodiesterases, Type 5Adenosine TriphosphateMolecular Sequence DataHexosediphosphatesSmall Molecule LibrariesTropicamideDrug AgonismCalciumEnzyme ActivationIleumCytidine DiphosphateGTP-Binding Protein alpha Subunits, Gq-G11Muscle ContractionGTP-Binding Protein alpha Subunits, Gi-GoDrug DiscoveryDrug InteractionsReceptors, Metabotropic GlutamateBenztropinePhosphatidylinositolsIsatinGuanosine 5'-O-(3-Thiotriphosphate)Pertussis ToxinRecombinant ProteinsReceptors, G-Protein-CoupledAffinity LabelsSignal TransductionGlucose-6-PhosphateMutationInositol PhosphatesType C PhospholipasesTransfection