2002
A Regulatory Locus of Phosphorylation in the N Terminus of the Na-K-Cl Cotransporter, NKCC1*
Darman RB, Forbush B. A Regulatory Locus of Phosphorylation in the N Terminus of the Na-K-Cl Cotransporter, NKCC1*. Journal Of Biological Chemistry 2002, 277: 37542-37550. PMID: 12145304, DOI: 10.1074/jbc.m206293200.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBinding SitesCell LineDogfishHumansIon TransportKineticsModels, MolecularPeptide FragmentsPhosphopeptidesPhosphorylationProtein ConformationRecombinant ProteinsSalt GlandSodium-Potassium-Chloride SymportersSolute Carrier Family 12, Member 2Spectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationTransfectionTrypsinConceptsProtein phosphatase 1 bindsN-terminusSer/ThrPhosphorylation-dependent mechanismN-terminal domainStrong consensus siteNa-K-Cl cotransporter NKCC1Matrix-assisted laser desorption ionization timePhosphoregulatory mechanismsPhosphoacceptor sitesRegulatory lociHEK-293 cellsNa-K-Cl cotransporterLaser desorption ionization timeCalyculin AConsensus sitesPhosphorylation stoichiometryDesorption ionization timeAmino acidsTryptic fragmentsProteinGland tubulesRectal gland tubulesFlight mass spectrometryIonization time
1996
Regulatory phosphorylation of the secretory Na-K-Cl cotransporter: modulation by cytoplasmic Cl
Lytle C, Forbush B. Regulatory phosphorylation of the secretory Na-K-Cl cotransporter: modulation by cytoplasmic Cl. American Journal Of Physiology 1996, 270: c437-c448. PMID: 8779905, DOI: 10.1152/ajpcell.1996.270.2.c437.Peer-Reviewed Original ResearchConceptsNa-K-Cl cotransporterNa-K-ClCotransport activityNa-K-Cl cotransport proteinResponse to cell shrinkageIncreased cotransport activityExtracellular K concentrationBlocking activityRefractory to forskolinPhosphatase inhibitor calyculin AInhibitor calyculin AShark rectal glandCotransporter proteinCytoplasmic Cl-CotransporterCell ClSecretory stimuliCell shrinkageCalyculin APhosphorylationRate of entryRegulatory phosphorylationPhosphorylation stateSecretory tubulesRectal gland
1994
The molecular basis of chloride transport in shark rectal gland.
Riordan J, Forbush B, Hanrahan J. The molecular basis of chloride transport in shark rectal gland. Journal Of Experimental Biology 1994, 196: 405-418. PMID: 7529818, DOI: 10.1242/jeb.196.1.405.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiological Transport, ActiveCarrier ProteinsChloride ChannelsChloridesCystic Fibrosis Transmembrane Conductance RegulatorEpitheliumHomeostasisHumansMembrane ProteinsModels, BiologicalPotassium ChannelsProtein Structure, SecondarySalt GlandSecond Messenger SystemsSharksSodium-Potassium-Chloride SymportersSodium-Potassium-Exchanging ATPaseConceptsApical Cl- channelsCl- channelsProtein kinase ACl- secretionBasolateral transport proteinsTransepithelial Cl- secretionNa+/K(+)-ATPase pumpIntracellular chloride concentrationStimulation of secretionActive Na+ extrusionBasolateral cotransporterShark rectal glandNa+/K+/2Cl- cotransporterCl- movementK+ channelsK+ exitNa+/K(+)-ATPaseApical componentParacellular flowPrimary stimulationEpithelial cellsExcellent experimental modelCotransporterCFTRRectal gland of elasmobranchsAlternatively spliced isoforms of the putative renal Na-K-Cl cotransporter are differentially distributed within the rabbit kidney.
Payne J, Forbush B. Alternatively spliced isoforms of the putative renal Na-K-Cl cotransporter are differentially distributed within the rabbit kidney. Proceedings Of The National Academy Of Sciences Of The United States Of America 1994, 91: 4544-4548. PMID: 7514306, PMCID: PMC43822, DOI: 10.1073/pnas.91.10.4544.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAmino Acid SequenceAnimalsBase SequenceBlotting, NorthernCarrier ProteinsCloning, MolecularColonConserved SequenceDogfishGene LibraryHumansKidneyKidney CortexKidney MedullaMembrane ProteinsMolecular Sequence DataOpen Reading FramesPoly ARabbitsRNARNA, MessengerSalt GlandSequence Homology, Amino AcidSodium-Potassium-Chloride SymportersTranscription, GeneticConceptsNa-K-Cl cotransporterNorthern blot analysisRabbit kidney cDNA libraryRenal Na-K-Cl cotransporterC-terminal cytoplasmic domainC-terminal cytoplasmic regionConsensus splice acceptor siteKidney cDNA libraryAmino acid hydropathySplice acceptor siteBlot analysisN-linked glycosylationRegions of divergenceIntronic DNACDNA clonesCassette exonsCDNA libraryProtein kinase ACytoplasmic domainSpliced isoformsTransmembrane helicesCDNA probeCytoplasmic regionHomologous variantMultiple clonesThe Na, K, C Cotransporter of Shark Rectal Gland
Forbush B, Lytle C, Xu J, Payne J, Biemesderfer D. The Na, K, C Cotransporter of Shark Rectal Gland. Kidney & Blood Pressure Research 1994, 17: 201-204. PMID: 7518959, DOI: 10.1159/000173819.Peer-Reviewed Original Research
1992
The Na-K-Cl cotransporter of avian salt gland. Phosphorylation in response to cAMP-dependent and calcium-dependent secretogogues.
Torchia J, Lytle C, Pon D, Forbush B, Sen A. The Na-K-Cl cotransporter of avian salt gland. Phosphorylation in response to cAMP-dependent and calcium-dependent secretogogues. Journal Of Biological Chemistry 1992, 267: 25444-25450. PMID: 1281159, DOI: 10.1016/s0021-9258(19)74061-7.Peer-Reviewed Original ResearchMeSH Keywords1-Methyl-3-isobutylxanthine8-Bromo Cyclic Adenosine MonophosphateAnimalsBlotting, WesternCalciumCarbacholCarrier ProteinsCell MembraneColforsinCyclic AMPDucksKineticsMembrane ProteinsPhosphatesPhosphorylationSalt GlandSodium-Potassium-Chloride SymportersTime FactorsVasoactive Intestinal PeptideConceptsNa-K-Cl cotransporterPhosphorylation of pp170Avian salt glandMonoclonal antibodiesResponse to carbacholEffect of forskolinNa-K-ClIntact cell preparationsConcentration-dependent increaseStimulation of secretionIncreased approximately 5-foldCAMP accumulationExposure of cellsCAMP-dependent protein kinasePp170Approximately 5-foldCell preparationsCAMP-dependentSalt gland cellsGland membranesWestern blottingForskolinSecretogoguesVIPAntibodiesNa-K-Cl cotransport in the shark rectal gland. II. Regulation in isolated tubules
Lytle C, Forbush B. Na-K-Cl cotransport in the shark rectal gland. II. Regulation in isolated tubules. American Journal Of Physiology 1992, 262: c1009-c1017. PMID: 1314482, DOI: 10.1152/ajpcell.1992.262.4.c1009.Peer-Reviewed Original ResearchConceptsNa-K-Cl cotransporterNa-K-ClShark rectal glandInhibitor of Na-K-Cl cotransportApical Cl- channelsCell shrinkageEffects of secretagoguesOsmotically induced changesSensitivity to cAMPCl- channelsExtracellular sodiumIsolated tubulesCotransporterHormonal modulationSecretory stimuliSignal transduction pathwaysSecretagoguesRectal glandTubulesRectal gland secretionHypertonicityCell volumeTransduction pathwaysGlandCellsNa-K-Cl cotransport in the shark rectal gland. I. Regulation in the intact perfused gland
Forbush B, Haas M, Lytle C. Na-K-Cl cotransport in the shark rectal gland. I. Regulation in the intact perfused gland. American Journal Of Physiology 1992, 262: c1000-c1008. PMID: 1566806, DOI: 10.1152/ajpcell.1992.262.4.c1000.Peer-Reviewed Original ResearchConceptsNa-K-ClNa-K-Cl cotransport systemNa-K-Cl cotransporterVasoactive intestinal peptideCotransport systemVIP-stimulated increasesStimulation of secretionShark rectal glandK exitBasolateral membranePerfused glandShark Squalus acanthiasIntestinal peptideArterial-venous differencesDogfish shark Squalus acanthiasIntact glandsPerfusion solutionPerfusion periodBasal statePerfusionGlandInvestigate regulationRectal glandRinger's solutionTime course