2015
Dual pulse-chase microscopy reveals early divergence in the biosynthetic trafficking of the Na,K-ATPase and E-cadherin
Farr GA, Hull M, Stoops EH, Bateson R, Caplan MJ. Dual pulse-chase microscopy reveals early divergence in the biosynthetic trafficking of the Na,K-ATPase and E-cadherin. Molecular Biology Of The Cell 2015, 26: 4401-4411. PMID: 26424804, PMCID: PMC4666135, DOI: 10.1091/mbc.e14-09-1385.Peer-Reviewed Original ResearchConceptsTrans-Golgi networkPlasma membraneE-cadherinK-ATPasePolarized MDCK epithelial cellsPost-Golgi traffickingCell surfacePolarized epithelial cellsEpithelial cellsMDCK epithelial cellsDistinct trafficking routesBiosynthetic traffickingCarrier vesiclesSecretory pathwayMembrane proteinsSurface deliveryBasolateral domainMost proteinsTrafficking routesGolgi complexTemperature blockTraffickingProteinMembraneCellsAkt Substrate of 160 kD Regulates Na+,K+-ATPase Trafficking in Response to Energy Depletion and Renal Ischemia
Alves DS, Thulin G, Loffing J, Kashgarian M, Caplan MJ. Akt Substrate of 160 kD Regulates Na+,K+-ATPase Trafficking in Response to Energy Depletion and Renal Ischemia. Journal Of The American Society Of Nephrology 2015, 26: 2765-2776. PMID: 25788531, PMCID: PMC4625659, DOI: 10.1681/asn.2013101040.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiotinylationCell LineCytoplasmDogsDynaminsEndocytosisEpithelial CellsGTPase-Activating ProteinsHumansIschemiaKidneyKidney DiseasesMadin Darby Canine Kidney CellsMaleMiceMice, KnockoutMicroscopy, FluorescencePhosphorylationProtein TransportReperfusion InjuryRNA, Small InterferingSignal TransductionSodium-Potassium-Exchanging ATPaseConceptsRenal epithelial cellsATPase traffickingIntracellular compartmentsEpithelial cell polarityEpithelial cellsBasolateral plasma membraneGlucose transporter 4Cultured epithelial cellsCell polarityRab GTPaseAkt substratePlasma membraneSubcellular distributionAS160Energy depletionDirect bindingTransporter 4TraffickingDirect roleK-ATPaseATPaseTubular soluteIntracellular accumulationCellsCompartments
2011
Protein Phosphatase 2A Interacts with the Na+,K+-ATPase and Modulates Its Trafficking by Inhibition of Its Association with Arrestin
Kimura T, Han W, Pagel P, Nairn AC, Caplan MJ. Protein Phosphatase 2A Interacts with the Na+,K+-ATPase and Modulates Its Trafficking by Inhibition of Its Association with Arrestin. PLOS ONE 2011, 6: e29269. PMID: 22242112, PMCID: PMC3248462, DOI: 10.1371/journal.pone.0029269.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsArrestinBinding, CompetitiveChlorocebus aethiopsCOS CellsGene DeletionG-Protein-Coupled Receptor KinasesHumansImmunoprecipitationKidneyMicePhosphorylationProtein BindingProtein BiosynthesisProtein Phosphatase 2Protein Structure, SecondaryProtein SubunitsProtein TransportRatsSodium-Potassium-Exchanging ATPaseConceptsC subunitATPase traffickingCatalytic subunitP-type ATPase familyG proteinsCatalytic C subunitTwo-hybrid systemIon transport proteinsEffect of arrestinNative rat kidneyATPase interactsProtein phosphataseATPase familyReceptor kinaseHomologous sequencesTransport proteinsFunctional domainsTrafficking propertiesImportant regulatorArrestinReceptor signalingIon pumpsTraffickingDirect interactionPP2APreactivation of AMPK by metformin may ameliorate the epithelial cell damage caused by renal ischemia
Seo-Mayer PW, Thulin G, Zhang L, Alves DS, Ardito T, Kashgarian M, Caplan MJ. Preactivation of AMPK by metformin may ameliorate the epithelial cell damage caused by renal ischemia. American Journal Of Physiology. Renal Physiology 2011, 301: f1346-f1357. PMID: 21849490, PMCID: PMC3233870, DOI: 10.1152/ajprenal.00420.2010.Peer-Reviewed Original ResearchMeSH KeywordsAcute Kidney InjuryAMP-Activated Protein KinasesAnimalsAntimetabolitesAntimycin ACell LineCell PolarityDeoxyglucoseDogsEnzyme ActivationEpithelial CellsKidneyMetforminReperfusion InjurySodium-Potassium-Exchanging ATPaseConceptsEpithelial cell polarityMDCK cellsPlasma membrane domainsIon transport proteinsEpithelial cell organizationCellular energy sensorAMPK activator metforminMadin-Darby canine kidney cellsBasolateral plasma membraneShort hairpin RNACanine kidney cellsCell polarityImmunofluoresence localizationRenal epithelial cellsMembrane domainsNa-K-ATPaseProtein kinaseAMPK activatorPlasma membraneVesicular compartmentsAMPK activityTransport proteinsEnergy sensorMolecular consequencesBasolateral localization
2010
AS160 Associates with the Na+,K+-ATPase and Mediates the Adenosine Monophosphate-stimulated Protein Kinase-dependent Regulation of Sodium Pump Surface Expression
Alves DS, Farr GA, Seo-Mayer P, Caplan MJ. AS160 Associates with the Na+,K+-ATPase and Mediates the Adenosine Monophosphate-stimulated Protein Kinase-dependent Regulation of Sodium Pump Surface Expression. Molecular Biology Of The Cell 2010, 21: 4400-4408. PMID: 20943949, PMCID: PMC3002392, DOI: 10.1091/mbc.e10-06-0507.Peer-Reviewed Original ResearchMeSH KeywordsAMP-Activated Protein KinasesAnimalsBiological TransportCell LineChlorocebus aethiopsCOS CellsDogsDose-Response Relationship, DrugEndocytosisEpithelial CellsGene ExpressionGene Knockdown TechniquesGTPase-Activating ProteinsHumansImmunoprecipitationPhosphorylationPyrazolesPyrimidinesSignal TransductionSodium-Potassium-Exchanging ATPaseConceptsRab-GTPase-activating proteinMost epithelial cell typesCompound CProtein kinase‐dependent regulationKinase-dependent regulationActive transport proteinsMadin-Darby canine kidneyEpithelial cell typesRegulated endocytosisShort hairpin RNASurface expressionATPase endocytosisCell surface expressionProtein kinasePlasma membraneCOS cellsTransport proteinsΑ-subunitHairpin RNAAS160Cell typesIntracellular retentionVariety of mechanismsATPaseATPase activityAssociation with β-COP Regulates the Trafficking of the Newly Synthesized Na,K-ATPase*
Morton MJ, Farr GA, Hull M, Capendeguy O, Horisberger JD, Caplan MJ. Association with β-COP Regulates the Trafficking of the Newly Synthesized Na,K-ATPase*. Journal Of Biological Chemistry 2010, 285: 33737-33746. PMID: 20801885, PMCID: PMC2962472, DOI: 10.1074/jbc.m110.141119.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell MembraneChlorocebus aethiopsCoatomer ProteinCOS CellsDogsEndoplasmic ReticulumEpitopesGene Expression Regulation, EnzymologicGolgi ApparatusMutationProtein BindingRatsSodium-Potassium-Exchanging ATPaseConceptsK-ATPase αK-ATPase β-subunitΒ-COPΒ-subunitΑ-subunitPlasma membraneEndoplasmic reticulumK-ATPase α-subunitMutant α-subunitsIon-transporting ATPasePlasma membrane expressionK-ATPasePulse-chase experimentsPartner proteinsNovel labeling techniqueCoat proteinDibasic motifCell surfaceMembrane expressionObligate intermediateΒ subunit expressionProteinReticulum
2009
Membrane proteins follow multiple pathways to the basolateral cell surface in polarized epithelial cells
Farr GA, Hull M, Mellman I, Caplan MJ. Membrane proteins follow multiple pathways to the basolateral cell surface in polarized epithelial cells. Journal Of Cell Biology 2009, 186: 269-282. PMID: 19620635, PMCID: PMC2717640, DOI: 10.1083/jcb.200901021.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiological TransportCadherinsCell LineCell MembraneCell PolarityDogsEndosomesEpithelial CellsExocytosisGolgi ApparatusHumansMembrane GlycoproteinsMembrane ProteinsModels, MolecularProtein Structure, SecondaryProtein TransportReceptors, TransferrinRecombinant Fusion ProteinsSodium-Potassium-Exchanging ATPaseStaining and LabelingTrans-Golgi NetworkViral Envelope ProteinsConceptsBasolateral proteinsMembrane proteinsSurface deliveryK-ATPaseVesicular stomatitis virus G proteinPolarized epithelial cellsBasolateral membrane proteinsEpithelial cellsVirus G proteinBasolateral cell surfaceBasolateral deliveryTransport intermediatesGolgi networkSmall GTPasesPlasma membraneG proteinsCell surfaceProteinMultiple pathwaysBasolateral membraneGolgiPathwayCellsMembraneGTPases
2007
Arrestins and Spinophilin Competitively Regulate Na+,K+-ATPase Trafficking through Association with a Large Cytoplasmic Loop of the Na+,K+-ATPase
Kimura T, Allen PB, Nairn AC, Caplan MJ. Arrestins and Spinophilin Competitively Regulate Na+,K+-ATPase Trafficking through Association with a Large Cytoplasmic Loop of the Na+,K+-ATPase. Molecular Biology Of The Cell 2007, 18: 4508-4518. PMID: 17804821, PMCID: PMC2043564, DOI: 10.1091/mbc.e06-08-0711.Peer-Reviewed Original ResearchMeSH Keywords14-3-3 ProteinsAnimalsArrestinBinding, CompetitiveCell LineChlorocebus aethiopsChoroid PlexusCytoplasmG-Protein-Coupled Receptor KinasesKidneyMiceMicrofilament ProteinsNerve Tissue ProteinsPhosphorylationProtein BindingProtein SubunitsProtein TransportRabbitsSodium-Potassium-Exchanging ATPaseConceptsG protein-coupled receptorsLarge cytoplasmic loopExpression of spinophilinCytoplasmic loopMock-transfected cellsGRK-2Adrenergic hormonesReceptor signalingImportant modulatorSpinophilinATPase endocytosisATPase traffickingArrestin-2COS cellsArrestinHormoneAssociationATPaseGRKsCellsTraffickingEpsilonVasopressinReceptorsThe Future of the Pump
Caplan MJ. The Future of the Pump. Journal Of Clinical Gastroenterology 2007, 41: s217-s222. PMID: 17575526, DOI: 10.1097/mcg.0b013e31803233da.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnkyrinsEnzyme ActivationGastric AcidGastric MucosaH(+)-K(+)-Exchanging ATPaseHumansMultiprotein ComplexesParietal Cells, GastricProtein BindingProtein ConformationProtein TransportSodium-Potassium-Exchanging ATPaseConceptsIon transport proteinsLarge macromolecular complexesMacromolecular complexesGastric parietal cellsTransport proteinsSecond messengerMacromolecular interactionsIon translocationRegulatory processesK-ATPaseCritical roleTight controlX-ray crystallographic techniquesParietal cellsCrystallographic techniquesCellsKinasePharmacologic suppressionTraffickingProteinTranslocationMessengerMolecular structureRegulationSecretion
2005
The C-Terminal Tail of the Polycystin-1 Protein Interacts with the Na,K-ATPase α-Subunit
Zatti A, Chauvet V, Rajendran V, Kimura T, Pagel P, Caplan MJ. The C-Terminal Tail of the Polycystin-1 Protein Interacts with the Na,K-ATPase α-Subunit. Molecular Biology Of The Cell 2005, 16: 5087-5093. PMID: 16107561, PMCID: PMC1266409, DOI: 10.1091/mbc.e05-03-0200.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell LineCHO CellsCricetinaeCricetulusDogsEnzyme InhibitorsEscherichiaMutationOuabainPolycystic Kidney DiseasesProteinsRecombinant ProteinsSodiumSodium-Potassium-Exchanging ATPaseTransfectionTRPP Cation ChannelsConceptsC-terminal tailPolycystin-1Cytoplasmic C-terminal tailK-ATPase α-subunitPolycystin-1 proteinK-ATPase activityRegulation of NaChinese hamster ovary cellsProtein interactsHamster ovary cellsProtein exhibitΑ-subunitFunctional studiesAmino acidsPKD1 geneOvary cellsAutosomal dominant polycystic kidney diseaseDominant polycystic kidney diseasePolycystic kidney diseaseInteractsKinetic propertiesRegulationGenesTailProtein
2004
Gastric parietal cell acid secretion in mice can be regulated independently of H+/K+ ATPase endocytosis
Nguyen NV, Gleeson PA, Courtois-Coutry N, Caplan MJ, van Driel IR. Gastric parietal cell acid secretion in mice can be regulated independently of H+/K+ ATPase endocytosis. Gastroenterology 2004, 127: 145-154. PMID: 15236181, DOI: 10.1053/j.gastro.2004.04.016.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphatasesAnimalsBiological TransportCell MembraneEndocytosisGastric AcidGene ExpressionMiceMice, TransgenicParietal Cells, GastricSodium-Potassium-Exchanging ATPaseConceptsApical plasma membranePlasma membraneIntracellular traffickingTyrosine-based endocytosis motifATPase activityATPase beta subunitMembrane traffickingATPase endocytosisTrafficking eventsEndocytosis motifParietal cell ultrastructureTubulovesicular compartmentCytoplasmic tailIntracytoplasmic compartmentCl- conductanceParietal cell acid secretionBeta subunitParietal cellsDirect regulationProton pumpCell ultrastructureTraffickingATPaseCellsRegulation
2003
Ion Pump‐Interacting Proteins: Promising New Partners
PAGEL P, ZATTI A, KIMURA T, DUFFIELD A, CHAUVET V, RAJENDRAN V, CAPLAN MJ. Ion Pump‐Interacting Proteins: Promising New Partners. Annals Of The New York Academy Of Sciences 2003, 986: 360-368. PMID: 12763851, DOI: 10.1111/j.1749-6632.2003.tb07215.x.Peer-Reviewed Original Research
2002
Extracellular Domains, Transmembrane Segments, and Intracellular Domains Interact To Determine the Cation Selectivity of Na,K- and Gastric H,K-ATPase †
Mense M, Rajendran V, Blostein R, Caplan MJ. Extracellular Domains, Transmembrane Segments, and Intracellular Domains Interact To Determine the Cation Selectivity of Na,K- and Gastric H,K-ATPase †. Biochemistry 2002, 41: 9803-9812. PMID: 12146946, DOI: 10.1021/bi025819z.Peer-Reviewed Original Research
2001
Ion Pumps in Polarized Cells: Sorting and Regulation of the Na+,K+- and H+,K+-ATPases*
Dunbar L, Caplan M. Ion Pumps in Polarized Cells: Sorting and Regulation of the Na+,K+- and H+,K+-ATPases*. Journal Of Biological Chemistry 2001, 276: 29617-29620. PMID: 11404365, DOI: 10.1074/jbc.r100023200.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsGene Expression Regulation, EnzymologicH(+)-K(+)-Exchanging ATPaseHumansIonsModels, MolecularProtein BindingSignal TransductionSodium-Potassium-Exchanging ATPaseConceptsP-type familyIon transport proteinsDistinct regulatory pathwaysSubcellular localizationPolarized cellsRelated membersRegulatory pathwaysTransport proteinsMolecular signalsATPasesCellular mechanismsIon pumpsEnzymatic activityEpithelial cellsProteinComplex arrayCatalytic capacityPhysiologic functionIntramolecular interactionsCellsHomologyTraffickingATPasePathwayRegulation
2000
The cell biology of ion pumps: sorting and regulation
Dunbar L, Caplan M. The cell biology of ion pumps: sorting and regulation. European Journal Of Cell Biology 2000, 79: 557-563. PMID: 11001492, DOI: 10.1078/0171-9335-00079.Peer-Reviewed Original ResearchConceptsPolarized epithelial cellsP-type familyIon pumpsK-ATPaseDistinct regulatory pathwaysProtein traffickingSubcellular localizationCell biologyRelated membersRegulatory pathwaysMolecular signalsCellular mechanismsEnzymatic activityIntra-molecular interactionsEpithelial cellsTraffickingComplex arrayCatalytic capacityPhysiologic functionATPasesHomologyBiologyPathwayRegulationSortingA Transmembrane Segment Determines the Steady-State Localization of an Ion-Transporting Adenosine Triphosphatase
Dunbar L, Aronson P, Caplan M. A Transmembrane Segment Determines the Steady-State Localization of an Ion-Transporting Adenosine Triphosphatase. Journal Of Cell Biology 2000, 148: 769-778. PMID: 10684257, PMCID: PMC2169368, DOI: 10.1083/jcb.148.4.769.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBiological TransportCationsCell LineCell MembraneCell PolarityGlycosphingolipidsGlycosylphosphatidylinositolsH(+)-K(+)-Exchanging ATPaseHydrogen-Ion ConcentrationMembrane ProteinsMolecular Sequence DataOuabainParietal Cells, GastricProtein Sorting SignalsRecombinant Fusion ProteinsSequence AlignmentSequence DeletionSodium-Potassium-Exchanging ATPaseSolubilityTransfectionConceptsK-ATPase alpha subunitAlpha subunitTransmembrane domainPolytopic membrane transport proteinK-ATPaseApical distributionGlycosphingolipid-rich membrane domainsDetergent-insoluble complexesMembrane transport proteinsApical membrane proteinsApical plasma membraneK-ATPase alphaFourth transmembrane domainLocalization signalChimeric pumpsFourth transmembraneTransmembrane segmentsK-ATPase sequencesMembrane compartmentsMembrane domainsMembrane proteinsSequence domainsPlasma membraneGastric parietal cellsTransport proteinsResidues of the Fourth Transmembrane Segments of the Na,K-ATPase and the Gastric H,K-ATPase Contribute to Cation Selectivity*
Mense M, Dunbar L, Blostein R, Caplan M. Residues of the Fourth Transmembrane Segments of the Na,K-ATPase and the Gastric H,K-ATPase Contribute to Cation Selectivity*. Journal Of Biological Chemistry 2000, 275: 1749-1756. PMID: 10636871, DOI: 10.1074/jbc.275.3.1749.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphatasesAmino Acid SequenceAnimalsCationsElectrophysiologyH(+)-K(+)-Exchanging ATPaseHydrogen-Ion ConcentrationInhibitory Concentration 50KineticsMolecular Sequence DataMutationOuabainPotassiumRecombinant Fusion ProteinsSequence Homology, Amino AcidSodiumSodium-Potassium-Exchanging ATPaseStomachVanadatesXenopus laevisConceptsFourth transmembrane segmentTransmembrane segmentsATPase assaysK-ATPaseHelical wheel analysisTwo-electrode voltage-clamp experimentsCation selectivityProtein chimerasXenopus laevis oocytesVanadate sensitivityWild-type NaGastric HK-ATPasesXenopus oocytesLaevis oocytesATPase activityAbsence of sodiumResiduesTM4K counterpartsControl constructsOocytesConformational equilibriumAssaysImportant role
1999
Cation Selectivity of Gastric H,K-ATPase and Na,K-ATPase Chimeras*
Blostein R, Dunbar L, Mense M, Scanzano R, Wilczynska A, Caplan M. Cation Selectivity of Gastric H,K-ATPase and Na,K-ATPase Chimeras*. Journal Of Biological Chemistry 1999, 274: 18374-18381. PMID: 10373442, DOI: 10.1074/jbc.274.26.18374.Peer-Reviewed Original Research
1998
Effects of okadaic acid, calyculin A, and PDBu on state of phosphorylation of rat renal Na+-K+-ATPase
Li D, Cheng S, Fisone G, Caplan M, Ohtomo Y, Aperia A. Effects of okadaic acid, calyculin A, and PDBu on state of phosphorylation of rat renal Na+-K+-ATPase. American Journal Of Physiology 1998, 275: f863-f869. PMID: 9843902, DOI: 10.1152/ajprenal.1998.275.6.f863.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsDopamine and cAMP-Regulated Phosphoprotein 32Dose-Response Relationship, DrugEnzyme ActivationEnzyme InhibitorsIn Vitro TechniquesKidneyMaleMarine ToxinsNerve Tissue ProteinsOkadaic AcidOxazolesPhorbol 12,13-DibutyratePhosphoprotein PhosphatasesPhosphoproteinsPhosphorylationProtein Kinase CRatsRats, Sprague-DawleySodium-Potassium-Exchanging ATPaseConceptsState of phosphorylationOkadaic acidPP-2ACalyculin AProtein kinasePP-1PP-1 activityATPase alpha subunitProtein kinase C activatorProtein phosphatasePresence of PDBuAlpha subunitATPase phosphorylationPhosphorylationC activatorProtein 1Anti-alpha antibodyATPaseATPase activityKinaseSuch regulationPDBu inhibitionPDBuPhosphataseFK-506Tyrosine-based Membrane Protein Sorting Signals Are Differentially Interpreted by Polarized Madin-Darby Canine Kidney and LLC-PK1 Epithelial Cells*
Roush D, Gottardi C, Naim H, Roth M, Caplan M. Tyrosine-based Membrane Protein Sorting Signals Are Differentially Interpreted by Polarized Madin-Darby Canine Kidney and LLC-PK1 Epithelial Cells*. Journal Of Biological Chemistry 1998, 273: 26862-26869. PMID: 9756932, DOI: 10.1074/jbc.273.41.26862.Peer-Reviewed Original ResearchConceptsProtein sorting signalsTyrosine-based motifLLC-PK1 cellsCytoplasmic tailSorting signalsMDCK cellsApical membraneBeta-subunit polypeptidesBasolateral membraneK-ATPase beta subunitDi-leucine motifBeta subunit proteinLLC-PK1 epithelial cellsMadin-Darby canine kidney cellsMadin-Darby canine kidneyEpithelial cell typesCanine kidney cellsK-ATPase betaHA-Y543Cytoplasmic sequencesSequence motifsSubunit polypeptidesMembrane proteinsBasolateral domainPolarized epithelium