Sulfhydryl ReagentsSulfhydryl CompoundsEthylmaleimideCysteineDithionitrobenzoic AcidChloromercuribenzoatesMesylatesHydroxymercuribenzoatesMercaptoethanol4-ChloromercuribenzenesulfonateDithiothreitolSubstance Pp-Chloromercuribenzoic AcidKineticsIndicators and ReagentsIodoacetatesAmino Acid SequenceIodoacetamideMolecular Sequence DataThimerosalIodobenzoatesEscherichia coliMolecular WeightHydrogen-Ion ConcentrationIodoacetic AcidDisulfidesMutagenesis, Site-DirectedEthyl MethanesulfonateMersalylProtein ConformationBinding SitesMaleimidesSubstrate SpecificityRecombinant ProteinsOxidation-ReductionElectrophoresis, Polyacrylamide GelCross-Linking ReagentsGABA Plasma Membrane Transport ProteinsDiamidePhenanthrolinesAmino AcidsChromatography, GelProtein BindingCell MembraneSubstance-Related DisordersStructure-Activity RelationshipChromatography, Ion ExchangeMacromolecular SubstancesBase SequenceCattleMutationTemperatureRabbitsCarrier ProteinsBiological TransportGlutathioneChromatographySequence Homology, Amino AcidModels, MolecularCalciumCloning, MolecularProtein Structure, TertiaryBiological Transport, ActiveProtein Structure, SecondaryBacterial ProteinsMercuribenzoatesMembrane ProteinsTrypsinSpectrophotometryCations, DivalentAdenosine TriphosphateHydrolysisChemistryLiverPeptide FragmentsChemical PhenomenaCyanidesManganeseAmino Acid SubstitutionMagnesiumProtein FoldingAntiportersMembrane Transport ProteinsCell Membrane PermeabilityReceptors, Neurokinin-1Substance Abuse Treatment CentersXenopus laevisCell LineHot TemperatureErythrocytesProtein S DeficiencyChromatography, Thin LayerRecombinant Fusion ProteinsNADH, NADPH OxidoreductasesChromatography, High Pressure LiquidProteinsCarbon RadioisotopesThioredoxinsEscherichia coli ProteinsCatalysis