2018
Nonmuscle myosin II isoforms interact with sodium channel alpha subunits
Dash B, Han C, Waxman S, Dib-Hajj S. Nonmuscle myosin II isoforms interact with sodium channel alpha subunits. Molecular Pain 2018, 14: 1744806918788638. PMID: 29956586, PMCID: PMC6052497, DOI: 10.1177/1744806918788638.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAnimalsAnkyrinsBrainCell Line, TransformedElectric StimulationGanglia, SpinalGene Expression RegulationGreen Fluorescent ProteinsHumansImmunoprecipitationMiceMice, Inbred C57BLMice, TransgenicMolecular Motor ProteinsMyosin Heavy ChainsNAV1.6 Voltage-Gated Sodium ChannelNonmuscle Myosin Type IIBPatch-Clamp TechniquesRatsTransfectionConceptsSodium channel alpha subunitND7/23 cellsChannel alpha subunitDorsal root ganglion tissueAlpha subunitMyosin II motor proteinsNonmuscle myosin II isoformsRodent nervous tissueRodent brain tissueSteady-state fast inactivationVoltage-sensitive channelsFast inactivationVoltage-dependent activationSodium channel alphaGanglion tissueIsoform-dependent mannerMyosin II isoformsNervous tissueRecombinant myosinBrain tissueCommon structural motifRamp currentsMotor proteinsCellular excitabilitySodium channels
2000
A double mutation in families with periodic paralysis defines new aspects of sodium channel slow inactivation
Bendahhou S, Cummins T, Hahn A, Langlois S, Waxman S, Ptácek L. A double mutation in families with periodic paralysis defines new aspects of sodium channel slow inactivation. Journal Of Clinical Investigation 2000, 106: 431-438. PMID: 10930446, PMCID: PMC314328, DOI: 10.1172/jci9654.Peer-Reviewed Original ResearchConceptsChannel slow inactivationPeriodic paralysisSlow inactivationSodium channel slow inactivationMalignant hyperthermia susceptibilitySkeletal muscle disordersHuman skeletal muscleParalytic attacksMuscle disordersHyperkalemic periodic paralysisSkeletal muscleParalysisDisease-causing mutationsNovel mutationsHyperKPPChannel defectsMolecular determinantsAlpha subunitMutant channelsMutationsDouble mutationInactivationPatientsTransmembrane segments S5
1999
Characterization of a new sodium channel mutation at arginine 1448 associated with moderate paramyotonia congenita in humans
Bendahhou S, Cummins T, Kwiecinski H, Waxman S, Ptácek L. Characterization of a new sodium channel mutation at arginine 1448 associated with moderate paramyotonia congenita in humans. The Journal Of Physiology 1999, 518: 337-344. PMID: 10381583, PMCID: PMC2269438, DOI: 10.1111/j.1469-7793.1999.0337p.x.Peer-Reviewed Original ResearchConceptsChannel functionMutant channelsHuman embryonic kidney 293 cellsEmbryonic kidney 293 cellsSodium channel alpha subunitAmino acid changesSingle nucleotide substitutionKidney 293 cellsChannel alpha subunitSkeletal muscle voltage-gated sodium channelPosition 1448Sodium channel mutationsParamyotonia congenitaVoltage-gated sodium channelsSodium channel functionNucleotide substitutionsAlpha subunitSingle-strand conformation polymorphism analysisSegment S4Skeletal muscle disordersDomain IVAcid changesNew genetic mutationsDNA sequencingFast inactivation
1998
Novel splice variants of the voltage-sensitive sodium channel alpha subunit
Oh Y, Waxman S. Novel splice variants of the voltage-sensitive sodium channel alpha subunit. Neuroreport 1998, 9: 1267-1272. PMID: 9631410, DOI: 10.1097/00001756-199805110-00002.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAmino Acid SequenceAnimalsAnimals, NewbornAstrocytesAstrocytomaBrainBucladesineCalcimycinCells, CulturedGenetic VariationMacromolecular SubstancesModels, MolecularMolecular Sequence DataPolymerase Chain ReactionProtein ConformationRatsRats, Sprague-DawleySodium ChannelsSpinal CordUp-RegulationConceptsChannel alpha subunitNeuroblastoma cellsSpinal cord astrocytesB104 neuroblastoma cellsCultured rat astrocytesChannel mRNA expressionNovel splice variantSplice variantsSodium channel alpha subunitAlpha-subunit mRNASpinal cordCerebral astrocytesUnique regulatory pathwaysAlpha subunitRat astrocytesAstrocytesMRNA expressionSubunit mRNAsMicroM A23187Dibutyryl cAMPPremature truncationCellsExpressionRegulatory pathwaysCord