2010
Reconstructing a Chloride-binding Site in a Bacterial Neurotransmitter Transporter Homologue*
Tavoulari S, Rizwan AN, Forrest LR, Rudnick G. Reconstructing a Chloride-binding Site in a Bacterial Neurotransmitter Transporter Homologue*. Journal Of Biological Chemistry 2010, 286: 2834-2842. PMID: 21115480, PMCID: PMC3024779, DOI: 10.1074/jbc.m110.186064.Peer-Reviewed Original ResearchConceptsChloride-binding siteConformational changesAdjacent binding sitesSingle point mutationProkaryotic homologuesSubstrate translocationIon-binding sitesTransporter homologueTransport proteinsNeurotransmitter transportersNeurotransmitter transportPoint mutationsBinding sitesHomologuesProteinMutationsCl(-) bindsDirect evidenceTherapeutic drugsSitesDependent formTranslocationTransportersBindsResidues
2000
Permeation and gating residues in serotonin transporter
Chen J, Rudnick G. Permeation and gating residues in serotonin transporter. Proceedings Of The National Academy Of Sciences Of The United States Of America 2000, 97: 1044-1049. PMID: 10655481, PMCID: PMC15515, DOI: 10.1073/pnas.97.3.1044.Peer-Reviewed Original ResearchMeSH KeywordsAllosteric RegulationAmino Acid SubstitutionCarrier ProteinsChloridesCocaineHumansHydrogenIon Channel GatingIon TransportIsoleucineMembrane GlycoproteinsMembrane Transport ProteinsMesylatesMutagenesis, Site-DirectedNerve Tissue ProteinsNorepinephrine Plasma Membrane Transport ProteinsOxidation-ReductionPotassiumProtein BindingProtein ConformationProtein Structure, TertiaryRecombinant Fusion ProteinsReducing AgentsSerotoninSerotonin Plasma Membrane Transport ProteinsSodiumSulfhydryl CompoundsSymportersConceptsSubstrate permeation pathway
1996
Ion Coupling Stoichiometry for the Norepinephrine Transporter in Membrane Vesicles from Stably Transfected Cells (∗)
Gu H, Wall S, Rudnick G. Ion Coupling Stoichiometry for the Norepinephrine Transporter in Membrane Vesicles from Stably Transfected Cells (∗). Journal Of Biological Chemistry 1996, 271: 6911-6916. PMID: 8636118, DOI: 10.1074/jbc.271.12.6911.Peer-Reviewed Original ResearchConceptsMembrane vesiclesTransmembrane ion gradientsLLC-PK1 cellsMajor substrateTransport substratesTransfected CellsStably Transfected CellsIon gradientsCoupling stoichiometryNet positive chargeDA accumulationVesiclesSubstrate moleculesTransportersNorepinephrine transporterAccumulationCellsGamma-aminobutyric acidCotransportDAGradientStoichiometrySubstrateAbsenceTransport processes
1994
Ligand binding to the serotonin transporter: equilibria, kinetics, and ion dependence.
Humphreys C, Wall S, Rudnick G. Ligand binding to the serotonin transporter: equilibria, kinetics, and ion dependence. Biochemistry 1994, 33: 9118-25. PMID: 8049215, DOI: 10.1021/bi00197a014.Peer-Reviewed Original Research
1993
From synapse to vesicle: The reuptake and storage of biogenic amine neurotransmitters
Rudnick G, Clark J. From synapse to vesicle: The reuptake and storage of biogenic amine neurotransmitters. Biochimica Et Biophysica Acta 1993, 1144: 249-263. PMID: 8104483, DOI: 10.1016/0005-2728(93)90109-s.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsPresynaptic plasma membraneBiogenic amine neurotransmittersEndogenous regulatory mechanismsSynaptic transmitter levelsPlasma membraneIndividual proteinsRegulatory mechanismsTransport systemMolecular levelSynaptic vesiclesAmine neurotransmittersIon gradientsTransportersVesiclesCDNARapid progressProteinNeurotransmittersRegulationMechanismMembraneSynapseTransmitter levels
1992
p-Chloroamphetamine induces serotonin release through serotonin transporters.
Rudnick G, Wall S. p-Chloroamphetamine induces serotonin release through serotonin transporters. Biochemistry 1992, 31: 6710-8. PMID: 1322169, DOI: 10.1021/bi00144a010.Peer-Reviewed Original ResearchMeSH KeywordsBinding, CompetitiveBiological TransportBlood PlateletsCarrier ProteinsCell MembraneChloridesHumansHydrogen-Ion ConcentrationImipramineKineticsLithiumLithium ChlorideMembrane GlycoproteinsMembrane Transport ProteinsNerve Tissue ProteinsP-ChloroamphetamineRadioisotope Dilution TechniqueSerotoninSerotonin Plasma Membrane Transport ProteinsTritiumConceptsPlasma membrane vesiclesMembrane vesiclesChromaffin granule membrane vesiclesVesicular amine transporterATP hydrolysisBovine adrenal chromaffin granulesSerotonin transporterAdrenal chromaffin granulesPrevents accumulationAmine transportersPresence of Mg2TransportersVesiclesChromaffin granulesModel systemDelta pHHuman plateletsATPEffluxManner characteristicAccumulationTransmembraneNaCl gradientPCA's abilityP-chloroamphetamineExpression of a cloned gamma-aminobutyric acid transporter in mammalian cells.
Keynan S, Suh Y, Kanner B, Rudnick G. Expression of a cloned gamma-aminobutyric acid transporter in mammalian cells. Biochemistry 1992, 31: 1974-9. PMID: 1536839, DOI: 10.1021/bi00122a011.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiological TransportCarrier ProteinsChloridesCloning, MolecularDNAGABA Plasma Membrane Transport ProteinsGamma-Aminobutyric AcidGene ExpressionGenetic VectorsHeLa CellsHumansKineticsL CellsMembrane ProteinsMembrane Transport ProteinsMiceNerve Tissue ProteinsOrganic Anion TransportersPlasmidsPrecipitin TestsRatsSodiumTransfectionTunicamycinXenopusConceptsMammalian cellsGABA transportMouse Ltk- cellsT7 RNA polymerasePlasma membrane vesiclesL cellsApparent molecular massGABA transporterSynaptic plasma membrane vesiclesGamma-aminobutyric acid transporterPresence of tunicamycinEukaryotic expression vectorRNA polymeraseTransient expressionExpression vectorAcid transportersMembrane vesiclesStable expressionLtk- cellsFunctional expressionGAT-1Molecular massHeLa cellsTransportersTransfection
1991
Binding of the cocaine analog 2 beta-[3H] carboxymethoxy-3 beta-(4-fluorophenyl)tropane to the serotonin transporter.
Rudnick G, Wall S. Binding of the cocaine analog 2 beta-[3H] carboxymethoxy-3 beta-(4-fluorophenyl)tropane to the serotonin transporter. Molecular Pharmacology 1991, 40: 421-6. PMID: 1896028.Peer-Reviewed Original Research
1990
Energetics of reserpine binding and occlusion by the chromaffin granule biogenic amine transporter.
Rudnick G, Steiner-Mordoch S, Fishkes H, Stern-Bach Y, Schuldiner S. Energetics of reserpine binding and occlusion by the chromaffin granule biogenic amine transporter. Biochemistry 1990, 29: 603-8. PMID: 2140052, DOI: 10.1021/bi00455a002.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphatasesAmmonium SulfateBinding SitesBiogenic AminesCarbonyl Cyanide m-Chlorophenyl HydrazoneCarrier ProteinsChloridesChromaffin GranulesChromaffin SystemDetergentsElectrochemistryHydrogen-Ion ConcentrationIonophoresKineticsLigandsMembrane PotentialsReserpineThermodynamicsThiocyanatesTime FactorsUreaConceptsBiogenic amine transportersReserpine bindingChromaffin granule membrane vesiclesAmine transportersAmine transportMembrane vesiclesDead-end complexIon translocationTransportersSubstrate moleculesBindingM ureaDelta pHTranslocationTriton XSodium dodecyl sulfateNeutral substrate moleculesTransmembraneHigh-affinity site
1985
Serotonin Transport by Platelet Plasma and Granule Membranes
RUDNICK G, HUMPHREYS C, DEAN G. Serotonin Transport by Platelet Plasma and Granule Membranes. Annals Of The New York Academy Of Sciences 1985, 456: 277-278. PMID: 2418730, DOI: 10.1111/j.1749-6632.1985.tb14876.x.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus Statements
1982
The role of chloride ion in platelet serotonin transport.
Nelson P, Rudnick G. The role of chloride ion in platelet serotonin transport. Journal Of Biological Chemistry 1982, 257: 6151-6155. PMID: 7076668, DOI: 10.1016/s0021-9258(20)65119-5.Peer-Reviewed Original Research
1981
Anion-dependent sodium ion conductance of platelet plasma membranes.
Nelson P, Rudnick G. Anion-dependent sodium ion conductance of platelet plasma membranes. Biochemistry 1981, 20: 4246-9. PMID: 6269584, DOI: 10.1021/bi00518a002.Peer-Reviewed Original Research