AdenosineAllosteric RegulationReceptors, Purinergic P1Receptor, Adenosine A2AReceptor, Adenosine A3Receptor, Adenosine A1Purinergic P1 Receptor AgonistsPurinergic P1 Receptor AntagonistsReceptor, Adenosine A2BAllosteric SiteXanthinesAdenosine A2 Receptor AgonistsAdenosine-5'-(N-ethylcarboxamide)Adenosine A2 Receptor AntagonistsReceptors, Adenosine A2Adenosine A1 Receptor AgonistsReceptors, PurinergicAdenosine A1 Receptor AntagonistsAdenosine A3 Receptor AgonistsAdenosine A3 Receptor AntagonistsAdenosine DeaminasePhenethylaminesPhenylisopropyladenosineTheophylline2-ChloroadenosineAdenosine KinaseAdenosine MonophosphateTriazinesRadioligand AssayTheobrominePurinergic AntagonistsCyclic AMPTriazoles5'-NucleotidasePurinesInosineKineticsAminophyllineTubercidinDose-Response Relationship, DrugBinding, CompetitiveNorbornanesModels, MolecularDipyridamoleCaffeineLigandsBinding SitesCHO CellsCricetinaeAdenylate CyclaseStructure-Activity RelationshipProtein BindingAdenine NucleotidesThioinosineVasodilator AgentsSignal TransductionNucleoside Transport ProteinsRats, Sprague-DawleyAdenineCells, CulturedAdenosine TriphosphateGuinea PigsProtein ConformationAdenosine TriphosphatasesCricetulusMyocardiumThionucleosidesDeoxyadenosinesRats, WistarCalciumMolecular Sequence DataColforsinNucleosidesMice, KnockoutCell MembraneAdenosine Deaminase InhibitorsGTP-Binding ProteinsAffinity LabelsMice, Inbred C57BLAmino Acid Sequence4-(3-Butoxy-4-methoxybenzyl)-2-imidazolidinoneTritiumProtein Structure, TertiaryPhosphodiesterase InhibitorsCell LineEnzyme ActivationCyclohexanecarboxylic AcidsHyperemiaIschemic Preconditioning, MyocardialEnzyme InhibitorsAminopyridinesRabbitsEquilibrative Nucleoside Transporter 1Pertussis ToxinVasodilationTime FactorsMolecular StructureCrystallography, X-RayHypoxanthineGTP-Binding Protein alpha Subunits, Gs