2002
Regulation of the voltage-gated K+ channel KCNA10 by KCNA4B, a novel β-subunit
Tian S, Liu W, Wu Y, Rafi H, Segal AS, Desir GV. Regulation of the voltage-gated K+ channel KCNA10 by KCNA4B, a novel β-subunit. American Journal Of Physiology. Renal Physiology 2002, 283: f142-f149. PMID: 12060596, DOI: 10.1152/ajprenal.00258.2001.Peer-Reviewed Original Research
2001
The distal convoluted tubule of rabbit kidney does not express a functional sodium channel
Velázquez H, Silva T, Andújar E, Desir G, Ellison D, Greger R. The distal convoluted tubule of rabbit kidney does not express a functional sodium channel. American Journal Of Physiology. Renal Physiology 2001, 280: f530-f539. PMID: 11181416, DOI: 10.1152/ajprenal.2001.280.3.f530.Peer-Reviewed Original ResearchAnimalsBlotting, NorthernCalcium-Binding ProteinsCloning, MolecularEndosomal Sorting Complexes Required for TransportEpithelial Sodium ChannelsIn Vitro TechniquesKidneyKidney Tubules, DistalLigasesMolecular Sequence DataNedd4 Ubiquitin Protein LigasesNephronsPerfusionRabbitsReverse Transcriptase Polymerase Chain ReactionRNA, MessengerSodium ChannelsTissue DistributionUbiquitin-Protein Ligases
2000
Close Association of the N Terminus of Kv1.3 with the Pore Region*
Yao X, Liu W, Tian S, Rafi H, Segal A, Desir G. Close Association of the N Terminus of Kv1.3 with the Pore Region*. Journal Of Biological Chemistry 2000, 275: 10859-10863. PMID: 10753881, DOI: 10.1074/jbc.275.15.10859.Peer-Reviewed Original ResearchConceptsN-terminusPore regionSteady-state protein levelsLarge single-channel conductanceVoltage-gated potassium channelsWild-type channelsShaker proteinCertain amino acidsChannel assemblyWild typeChannel proteinsChannel functionAmino acidsSingle-channel conductancePore blockersSpeed of inactivationTerminusProtein levelsDomain leadPore selectivityPotassium channelsProteinType channelsKinetic propertiesChannel conductance
1999
The T0 Domain of Rabbit KV1.3 Regulates Steady State Channel Protein Level
Segal A, Yao X, Desir G. The T0 Domain of Rabbit KV1.3 Regulates Steady State Channel Protein Level. Biochemical And Biophysical Research Communications 1999, 254: 54-64. PMID: 9920732, DOI: 10.1006/bbrc.1998.9801.Peer-Reviewed Original ResearchConceptsN-terminal regulatory regionVoltage-gated potassium channelsWild-type channelsRegulatory regionsPlasma membraneAmino terminusChannel assemblyChannel proteinsRecognition domainSingle-channel conductanceKv channelsChannel protein levelsProtein levelsProtein densityPotassium channelsOpen probabilityType channelsChannel conductanceKv1.3Fast inactivationDomainMembraneTerminusProteinInactivation
1998
Characterization of a Regulatory Region in the N-Terminus of Rabbit Kv1.3
Yao X, Huang Y, Kwan HY, Chan P, Segal AS, Desir G. Characterization of a Regulatory Region in the N-Terminus of Rabbit Kv1.3. Biochemical And Biophysical Research Communications 1998, 249: 492-498. PMID: 9712724, DOI: 10.1006/bbrc.1998.9122.Peer-Reviewed Original ResearchAmino Acid SequenceAnimalsChemical PhenomenaChemistry, PhysicalDynaminsElectric ConductivityEndocytosisFemaleGene DeletionGene ExpressionGTP PhosphohydrolasesKv1.3 Potassium ChannelMolecular Sequence DataMutagenesisOocytesPeptide FragmentsPotassium ChannelsPotassium Channels, Voltage-GatedProtein Sorting SignalsRabbitsRNA, ComplementaryStructure-Activity RelationshipTransfectionXenopus laevisRabbit distal convoluted tubule coexpresses NaCl cotransporter and 11β-hydroxysteroid dehydrogenase II mRNA
Velázquez H, Náray-Fejes-Tóth A, Silva T, Andújar E, Reilly RF, Desir GV, Ellison DH. Rabbit distal convoluted tubule coexpresses NaCl cotransporter and 11β-hydroxysteroid dehydrogenase II mRNA. Kidney International 1998, 54: 464-472. PMID: 9690213, DOI: 10.1046/j.1523-1755.1998.00036.x.Peer-Reviewed Original ResearchConceptsProximal tubulesNaCl cotransporterNephron segmentsDissected nephron segmentsTarget tissuesAction of aldosteroneAldosterone target tissuesSame nephron segmentsPolymerase chain reaction techniqueReverse transcriptase/polymerase chain reaction techniqueChain reaction techniqueDietary NaClDistal nephronBeta-HSDCCD samplesMRNA expressionNaCl cotransportRecent evidenceSimilar extentAldosteroneCotransporterHigh ratePrincipal targetTubulesTissue
1997
Cloning and localization of a double-pore K channel, KCNK1: exclusive expression in distal nephron segments
Orias M, Velázquez H, Tung F, Lee G, Desir G. Cloning and localization of a double-pore K channel, KCNK1: exclusive expression in distal nephron segments. American Journal Of Physiology 1997, 273: f663-f666. PMID: 9362344, DOI: 10.1152/ajprenal.1997.273.4.f663.Peer-Reviewed Original ResearchConceptsThick ascending limbAscending limbK channelsCortical thick ascending limbMedullary thick ascending limbDistal nephron segmentsReverse transcription-polymerase chain reactionDistal convoluted tubuleTranscription-polymerase chain reactionDistal tubulesConvoluted tubulesProximal tubulesNephron segmentsHigh expressionNephron segment localizationK homeostasisChain reactionHuman kidney cDNATubulesSegment localizationExclusive expressionKCNK1LimbPore regionKidney cDNAGenomic Localization of the Human Gene for KCNA10, a cGMP-Activated K Channel
Orias M, Bray-Ward P, Curran M, Keating M, Desir G. Genomic Localization of the Human Gene for KCNA10, a cGMP-Activated K Channel. Genomics 1997, 42: 33-37. PMID: 9177773, DOI: 10.1006/geno.1997.4712.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceBase SequenceChromosome MappingChromosomes, Artificial, YeastChromosomes, Human, Pair 1Cloning, MolecularCyclic GMPDNA PrimersHumansIn Situ Hybridization, FluorescenceMicrosatellite RepeatsMolecular Sequence DataPolymerase Chain ReactionPotassium ChannelsPotassium Channels, Voltage-GatedShaker Superfamily of Potassium ChannelsConceptsHuman genesK channel genesCandidate gene analysisGenomic localizationMicrosatellite lociCellular functionsGenetic intervalYAC clonesChromosome 1Channel genesFiner mappingGenesKCNA10Gene analysisSitu hybridizationK channelsCritical rolePotassium channelsIntracellular cGMPP13.1KCNA3CGMPImportant componentLociClones
1996
Genomic structure and regulation of Kcn1, a cGMP-gated potassium channel
Yao X, Liu Y, Tung F, Desir GV. Genomic structure and regulation of Kcn1, a cGMP-gated potassium channel. American Journal Of Physiology 1996, 271: f37-f41. PMID: 8760241, DOI: 10.1152/ajprenal.1996.271.1.f37.Peer-Reviewed Original ResearchConceptsCis-regulatory elementsPromoter regionEnhancer elementsNovel potassium channel geneMajor transcription initiation siteTypical TATA boxTranscription initiation sitePhorbol esterPotassium channel genesLuciferase reporter constructsPotassium channelsGenomic structurePorcine kidney cell lineDeletion analysisRabbit geneTATA boxAcid proteinGene transcriptionKidney cell lineReporter constructsChannel genesSequence analysisPrimer extensionInitiation siteNorthern blotMolecular cloning of a glibenclamide-sensitive, voltage-gated potassium channel expressed in rabbit kidney.
Yao X, Chang AY, Boulpaep EL, Segal AS, Desir GV. Molecular cloning of a glibenclamide-sensitive, voltage-gated potassium channel expressed in rabbit kidney. Journal Of Clinical Investigation 1996, 97: 2525-2533. PMID: 8647945, PMCID: PMC507338, DOI: 10.1172/jci118700.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBase SequenceBrainCloning, MolecularDNA PrimersFemaleGenetic VariationGenomic LibraryGlyburideHumansKidney MedullaKv1.3 Potassium ChannelMiceModels, BiologicalMolecular Sequence DataOocytesPancreatitis-Associated ProteinsPhylogenyPolymerase Chain ReactionPotassium ChannelsPotassium Channels, Voltage-GatedRabbitsRecombinant ProteinsSequence Homology, Amino AcidXenopus laevisConceptsVoltage-gated potassium channelsMolecular cloningFunctional expressionShaker-like potassium channelsPotassium channelsShaker geneGRB-PAP1Novel memberAmino terminusMolecular evidenceShaker channelsAmino acidsXenopus oocytesRabbit kidneyRenal potassium transportCloningGenesPotassium transportChannel clonesFirst reportRabbit brainPotassium conductanceFamilyExpressionKidney
1995
Primary structure and functional expression of a cGMP-gated potassium channel.
Yao X, Segal AS, Welling P, Zhang X, McNicholas CM, Engel D, Boulpaep EL, Desir GV. Primary structure and functional expression of a cGMP-gated potassium channel. Proceedings Of The National Academy Of Sciences Of The United States Of America 1995, 92: 11711-11715. PMID: 8524834, PMCID: PMC40472, DOI: 10.1073/pnas.92.25.11711.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBase SequenceCloning, MolecularCyclic GMPElectric ConductivityGene LibraryIon Channel GatingMolecular Sequence DataOocytesPhylogenyPotassiumPotassium ChannelsProtein BiosynthesisProtein ConformationRabbitsRNA, MessengerSequence Homology, Amino AcidTissue DistributionXenopusConceptsDeduced amino acid sequenceChannel protein phosphorylationCysteine-rich regionAmino acid sequenceNorthern blot analysisPotassium channel activityProtein phosphorylationAcid sequenceGene expressionPrimary structureFunctional expressionK channelsIon channelsChannel activityBlot analysisCyclic nucleotidesShaker K channelsPotassium channelsEffects of substancesKCN1Intracellular cGMPCGMPNitric oxideExpressionImportant role
1993
Identification of a novel K-channel gene (KC22) that is highly expressed in distal tubule of rabbit kidney
Desir GV, Velazquez H. Identification of a novel K-channel gene (KC22) that is highly expressed in distal tubule of rabbit kidney. American Journal Of Physiology 1993, 264: f128-f133. PMID: 7679255, DOI: 10.1152/ajprenal.1993.264.1.f128.Peer-Reviewed Original ResearchConceptsPolymerase chain reactionRabbit kidneyKidney cortexWhole kidney cortexShaker gene familyDistal tubule cellsVoltage-gated K channelsRenal tissueDistal tubulesTubule cellsRibonuclease protectionPrimary culturesKidneyChain reactionExpression levelsK channelsCortexTubulesPartial-length sequencesAbundant isoformIsoformsKidney cDNAK channel genes
1992
Isolation of putative voltage-gated epithelial K-channel isoforms from rabbit kidney and LLC-PK1 cells
Desir GV, Hamlin HA, Puente E, Reilly RF, Hildebrandt F, Igarashi P. Isolation of putative voltage-gated epithelial K-channel isoforms from rabbit kidney and LLC-PK1 cells. American Journal Of Physiology 1992, 262: f151-f157. PMID: 1733291, DOI: 10.1152/ajprenal.1992.262.1.f151.Peer-Reviewed Original ResearchConceptsDeduced amino acid sequenceAmino acid sequenceAcid sequenceVoltage-gated K channelsRabbit genomic DNAPutative transmembrane segmentsShaker-like genesPutative voltage sensorShaker gene familyVoltage-gated potassium channelsGene familyShaker proteinRenal epithelial cellsTransmembrane segmentsSequence similarityRabbit cDNAEpithelial cell lineSouthern analysisProtein sequencesLLC-PK1 cellsDifferent genesGenomic DNAKidney cDNACDNAS4 segment