GuanosineGuanosine 5'-O-(3-Thiotriphosphate)Guanosine TriphosphateReceptors, SomatostatinGuanosine MonophosphateGuanosine TetraphosphateGuanosine DiphosphateReceptors, MuscarinicGuanine NucleotidesRadioligand AssayCyclic GMPReceptor, Muscarinic M3Receptors, SerotoninGTP-Binding ProteinsReceptors, Prostaglandin EReceptor, Muscarinic M1Molecular Sequence DataReceptor, Muscarinic M2PirenzepineDose-Response Relationship, DrugRats, Sprague-DawleyReceptors, AngiotensinMuscarinic AntagonistsBinding, CompetitiveReceptors, Neuropeptide YReceptors, Prostaglandin E, EP4 SubtypeGuanosine PentaphosphateReceptors, Prostaglandin E, EP1 SubtypeThionucleotidesReceptor, Muscarinic M4Cyclic AMPRNA, MessengerReceptors, Prostaglandin E, EP2 SubtypeSomatostatinReceptors, Adrenergic, alpha-1KineticsSerotonin Receptor AgonistsReceptors, Prostaglandin E, EP3 SubtypeReceptors, EndothelinReceptor, Muscarinic M5Amino Acid SequenceSerotonin AntagonistsMuscarinic AgonistsPiperidinesReceptors, Dopamine D2PyridinesCells, CulturedReceptors, Purinergic P2Receptors, Adrenergic, alpha-2Base SequenceCalciumCHO CellsAutoradiographySignal TransductionCricetinaeReceptors, Purinergic P1Receptor, Metabotropic Glutamate 5Receptors, DopamineCell LineReceptors, NicotinicAdenosineReceptors, GABA-ACarbacholPertussis ToxinGuanylyl ImidodiphosphateReceptor, Endothelin BRats, WistarReceptors, Metabotropic GlutamateDiaminesSerotoninReceptor, Serotonin, 5-HT2AVirulence Factors, BordetellaDioxanesBrainReceptors, BombesinNeuronsLigandsReverse Transcriptase Polymerase Chain ReactionReceptor, Serotonin, 5-HT2BPeptides, CyclicCell MembraneOxotremorineOctreotideAdenosine TriphosphateN-MethylscopolamineAdrenergic alpha-AntagonistsBinding SitesParasympatholyticsReceptors, Dopamine D3Bicyclo Compounds, HeterocyclicQuinuclidinyl BenzilateReceptors, Dopamine D1Nicotinic AntagonistsReceptor, Angiotensin, Type 2Guinea PigsEndothelinsAdrenergic alpha-AgonistsMuscle ContractionViper VenomsMuscle, Smooth