Bioluminescence Resonance Energy Transfer TechniquesFluorescence Resonance Energy TransferLuminescent MeasurementsLuciferases, RenillaEnergy TransferRenillaLuminescenceLuminescent ProteinsArrestinsLuminescent AgentsDimerizationTacrolimus Binding Protein 1AHEK293 CellsProtein MultimerizationReceptors, G-Protein-CoupledProtein BindingRecombinant Fusion ProteinsBiosensing TechniquesGTP-Binding Protein alpha Subunits, Gi-GoCell LineLuciferasesCOS CellsQuantum DotsReceptors, Adrenergic, beta-2BiopolymersLuciferases, FireflyGreen Fluorescent ProteinsCercopithecus aethiopsMagnetic Resonance ImagingFirefly LuciferinSignal TransductionLigandsProtein Structure, QuaternaryProtein Structure, TertiaryTransfectionEnergy MetabolismProtein TransportImmunoprecipitationCell MembraneProtein ConformationFirefliesRadioligand AssayBacterial ProteinsReceptor, Angiotensin, Type 1Cyclic AMPMolecular Sequence DataCHO CellsEndocytosisAmino Acid SequenceMagnetic Resonance SpectroscopySpectrometry, FluorescenceCricetinaeEnergy IntakeAliivibrio fischeriFluorescent DyesLuciferases, BacterialPhotobacteriumFluorescenceVibrioMolecular ImagingWhole Body ImagingPhotonsGenes, ReporterModels, MolecularMicroscopy, FluorescenceSurface Plasmon ResonanceKineticsPhotobleachingDiagnostic ImagingTime FactorsAdenosine TriphosphateCell TrackingElectron Spin Resonance SpectroscopyAequorinFluorescence PolarizationMagnetic Resonance Angiography