Receptors, GABACrotonatesgamma-Aminobutyric AcidGABA AntagonistsReceptors, GABA-AGABA AgonistsRecombinant ProteinsGABA-A Receptor AntagonistsXenopus laevisPicrotoxinBicucullineOocytesRadioligand AssayPhosphinic AcidsReceptors, GABA-BDose-Response Relationship, DrugPyridazinesCHO CellsGABA-A Receptor AgonistsPregnanoloneCadmium CompoundsPatch-Clamp TechniquesAzetidinecarboxylic AcidRetinaCricetinaeReceptors, GlycineGABA AgentsOrganophosphorus CompoundsGABA Uptake InhibitorsRetinal Cone Photoreceptor CellsGABA ModulatorsElectrophysiologyIon Channel GatingGABA Plasma Membrane Transport ProteinsMembrane PotentialsMuscimolRecombinant Fusion ProteinsMolecular Sequence DataDNA, RecombinantAmino Acid SequenceIctaluridaeCloning, MolecularBaclofenBase SequenceNipecotic AcidsRetinal Bipolar CellsGenetic VectorsUrodelaNeuronsEscherichia coliVaccines, SyntheticGABA-B Receptor AgonistsCell LineAmbystomaRecombination, Genetic4-Aminobutyrate TransaminaseGABA-B Receptor AntagonistsNeural InhibitionBaculoviridaeGlutamate DecarboxylaseCells, CulturedStructure-Activity RelationshipKineticsPlasmidsInhibitory Postsynaptic PotentialsRats, Sprague-DawleyGene ExpressionChloride ChannelsRetinal Ganglion CellsSynaptic TransmissionDiazepamElectric ConductivitySequence Homology, Amino AcidProtein Binding