Structure-Activity RelationshipMolecular StructureKineticsStereoisomerismNucleosidesMolecular Sequence DataModels, MolecularOctreotideDose-Response Relationship, DrugSomatostatinAmino Acid SequenceSubstrate SpecificityRNA Cap AnalogsMagnetic Resonance SpectroscopyMolecular ConformationDrug DesignBinding, CompetitiveAffinity LabelsProtein BindingAdenosine TriphosphateProstaglandins, SyntheticAntineoplastic AgentsPain MeasurementInhibitory Concentration 50Computers, AnalogPeptidesReceptors, SomatostatinProtein ConformationCell LineDrug Screening Assays, AntitumorEnzyme InhibitorsCyclic AMPOligopeptidesEscherichia coliThionucleotidesAzidesAdenosineOrganophosphonatesCells, CulturedTime FactorsCrystallography, X-RayPurine NucleosidesIndicators and ReagentsAdenineNucleotidesChromatography, High Pressure LiquidAntiviral AgentsHydrolysisIloprostCatalysisPeptides, CyclicTumor Cells, CulturedCell Line, TumorLigandsModels, ChemicalGuanosine TriphosphateCalcitriolCattleFluorineOrganophosphorus CompoundsRabbitsFluorescent DyesPhotoaffinity LabelsBase SequenceSpectrometry, FluorescenceGonadotropin-Releasing HormonePeptide FragmentsRecombinant ProteinsBenztropineCell MembraneCricetinaeBiological TransportHydrogen-Ion ConcentrationAmidesPyrimidine NucleosidesCircular DichroismCalciumChemistry4-Chloro-7-nitrobenzofurazanAdenosine DiphosphateDrug Evaluation, PreclinicalMutationChemical PhenomenaDNAPolyaminesEnzyme ActivationPurinesSpectrophotometry, UltravioletPhotochemistryFuransCell Division8-Bromo Cyclic Adenosine MonophosphateRats, Sprague-DawleyVisual Analog ScaleAdenylyl ImidodiphosphateChemistry Techniques, SyntheticHydrogen BondingDeoxyadenosinesCyclizationSpermine