NicotineReceptors, NicotinicNicotinic AgonistsNicotinic Antagonistsalpha7 Nicotinic Acetylcholine ReceptorAconitineDihydro-beta-ErythroidineMecamylamineAzocinesBungarotoxinsGanglionic StimulantsDimethylphenylpiperazinium IodideBicyclo Compounds, HeterocyclicQuinolizinesTobacco Use DisorderAcetylcholineBinding SitesHexamethoniumProtein BindingMolecular Sequence DataBinding, CompetitiveAnabasineLigandsCholinergic AgentsConotoxinsAmino Acid SequenceCotininePyridinesGalantamineKineticsCell LineDose-Response Relationship, DrugReceptors, Cell SurfaceAlkaloidsNeuronsSubstance Withdrawal SyndromeBase SequencePicolinesRats, Sprague-DawleyHexamethonium CompoundsLobelineBenzylidene CompoundsGanglia, ParasympatheticCholinesterase InhibitorsSmokingReceptors, CholinergicTubocurarineChewing GumProtein SubunitsSmoking CessationDopamineProtein Structure, TertiaryIbogaineReceptors, GlucocorticoidModels, MolecularAzetidinesTransfectionRecombinant ProteinsAtropineHabenulaMuscarinic AntagonistsTobacco Use Cessation ProductsSelf AdministrationSignal TransductionProtein ConformationPatch-Clamp TechniquesReceptors, ImmunologicDNAParasympathomimeticsPyrantelMannosephosphatesReceptors, Thyroid HormoneChickensXenopus laevisCells, CulturedReceptor, IGF Type 2SynaptosomesReceptors, MuscarinicSynaptic TransmissionCholineCell MembraneCholinergic AgonistsQuinoxalinesMutationRadioligand AssayTorpedoRecombinant Fusion ProteinsOocytesMutagenesis, Site-DirectedAdministration, CutaneousCorpus StriatumBrainReceptors, SteroidReceptors, sigmaChromaffin CellsChlorisondamineTacrineMembrane PotentialsStructure-Activity RelationshipDextrorphan