NicotineSmall Molecule LibrariesProtein BindingBinding SitesModels, MolecularMolecular Sequence DataNicotinic AgonistsAmino Acid SequenceCrystallography, X-RayLigandsKineticsProtein ConformationTobacco Use DisorderProtein Structure, TertiaryGanglionic StimulantsCell LineStructure-Activity RelationshipBase SequenceNucleic Acid ConformationReceptors, NicotinicBinding, CompetitivePeptidesMacromolecular SubstancesDimerizationDNAMecamylamineEscherichia coliRecombinant ProteinsCotinineMagnetic Resonance SpectroscopyHydrogen BondingCell Adhesion MoleculesPeptide FragmentsModels, BiologicalSpectrometry, FluorescenceHistocompatibility Antigens Class IIModels, ChemicalCattleNicotinic AntagonistsMolecular StructureChewing GumHistocompatibility Antigens Class IDrug Evaluation, PreclinicalHigh-Throughput Screening AssaysSubstance Withdrawal SyndromeSignal TransductionTobacco Use Cessation ProductsSmoking CessationSmokingDose-Response Relationship, DrugDrug DesignDrug DiscoveryAdministration, CutaneousCell Line, TumorCells, CulturedDihydro-beta-ErythroidineMutationCombinatorial Chemistry TechniquesTarsalpha7 Nicotinic Acetylcholine ReceptorMice, Inbred C57BLSelf AdministrationEnzyme InhibitorsTime FactorsRats, Sprague-DawleyAntibodies, MonoclonalProteinsInhibitory Concentration 50TransfectionRecombinant Fusion ProteinsRNA, MessengerDNA-Binding ProteinsPhosphorylationPyridinesAntineoplastic AgentsAzocinesMolecular ConformationMembrane ProteinsSequence Homology, Amino AcidCarrier ProteinsProtein Kinase InhibitorsCell ProliferationBicyclo Compounds, HeterocyclicBacterial ProteinsCell MembraneMolecular WeightHeLa CellsApoptosisTranscription FactorsGene Expression RegulationMolecular Docking SimulationBlotting, WesternSubstrate SpecificityCell AdhesionCloning, MolecularBrainAconitineCell SurvivalFluorescent DyesElectrophoresis, Polyacrylamide Gel