GTP-Binding Protein alpha Subunits, Gi-GoGTP-Binding Protein alpha Subunits, GsGTP-Binding ProteinsReceptors, G-Protein-CoupledSensitivity and SpecificityGuanosine 5'-O-(3-Thiotriphosphate)Substrate SpecificityMolecular Sequence DataAmino Acid SequenceGTP-Binding Protein alpha SubunitsGTP-Binding Protein alpha Subunits, Gq-G11Receptors, Opioid, muHeterotrimeric GTP-Binding ProteinsPertussis ToxinRadioligand Assay2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepineProtein BindingKineticsSulfur RadioisotopesCHO CellsBenzeneacetamidesSignal TransductionCricetinaeReceptors, Dopamine D1Virulence Factors, BordetellaMutagenesis, Site-DirectedCyclic AMPInositol PhosphatesBinding SitesAdenylate CyclaseCell LineLigandsTransfectionCOS CellsModels, MolecularRecombinant ProteinsArrestinsAntibody SpecificityEnkephalin, Ala(2)-MePhe(4)-Gly(5)-GTP-Binding Protein alpha Subunit, Gi2Cell MembraneStructure-Activity RelationshipReceptors, AngiotensinMutationReceptor, Muscarinic M1Protein ConformationReceptors, MuscarinicEnkephalin, D-Penicillamine (2,5)-Protein Structure, TertiaryProtein Structure, SecondaryBinding, CompetitiveReceptors, Adrenergic, beta-2Receptors, Dopamine D2Receptors, Adrenergic, alpha-2CalciumDopamine AgonistsSequence Homology, Amino AcidReceptors, Serotonin, 5-HT1Receptors, VasopressinReceptors, PeptidePhosphatidylinositolsRecombinant Fusion ProteinsReceptors, Adrenergic, alpha-1Type C PhospholipasesSpecies SpecificityRhodopsinPeptidesCells, CulturedPhosphorylationHEK293 CellsAmino Acid SubstitutionCarbacholDose-Response Relationship, DrugCattleBase SequenceReceptors, SerotoninModels, BiologicalReceptor, Angiotensin, Type 1Enzyme ActivationReceptors, Adrenergic, betaCercopithecus aethiopsExcitation Contraction CouplingCricetulusGuanosine TriphosphateKidney Tubules, ProximalReceptors, Cell SurfacePoint MutationRats, Sprague-DawleyIsoproterenolEndocytosisEscherichia coliGap JunctionsBlotting, WesternAngiotensin IIProtein Kinase COxidative CouplingReproducibility of ResultsROC CurvePredictive Value of TestsCatalysis