2020
Cumulative hydropathic topology of a voltage‐gated sodium channel at atomic resolution
Xenakis M, Kapetis D, Yang Y, Heijman J, Waxman S, Lauria G, Faber C, Smeets H, Westra R, Lindsey P. Cumulative hydropathic topology of a voltage‐gated sodium channel at atomic resolution. Proteins Structure Function And Bioinformatics 2020, 88: 1319-1328. PMID: 32447794, DOI: 10.1002/prot.25951.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceArcobacterBacterial ProteinsBinding SitesHydrophobic and Hydrophilic InteractionsIon Channel GatingModels, MolecularProtein BindingProtein Conformation, alpha-HelicalProtein Conformation, beta-StrandProtein Interaction Domains and MotifsSodiumThermodynamicsVoltage-Gated Sodium ChannelsConceptsVoltage-gated sodium channelsBacterial channelsPhysiological cellular activitySodium channelsCellular activitiesCell membraneBiological poresPore stabilityAtomic resolutionBiophysical significanceMembrane surfaceHydropathicityGenesProteinMutationsWide spectrumMembraneFunctional architectureAccumulationComputational frameworkSodium ionsPores
2018
Nav1.7 is phosphorylated by Fyn tyrosine kinase which modulates channel expression and gating in a cell type-dependent manner
Li Y, Zhu T, Yang H, Dib-Hajj S, Waxman S, Yu Y, Xu TL, Cheng X. Nav1.7 is phosphorylated by Fyn tyrosine kinase which modulates channel expression and gating in a cell type-dependent manner. Molecular Pain 2018, 14: 1744806918782229. PMID: 29790812, PMCID: PMC6024516, DOI: 10.1177/1744806918782229.Peer-Reviewed Original ResearchConceptsND7/23 cellsDRG neuron excitabilityModulation of Nav1.7New pain therapeuticsVoltage-gated sodium channel Nav1.7Fyn kinaseWhole-cell recordingsSodium channel Nav1.7Elevated protein expressionCell type-specific modulationHuman embryonic kidney 293 cellsTyrosine kinasePain disordersEmbryonic kidney 293 cellsPain therapeuticsNeuron excitabilityPain perceptionMutant channelsChannel Nav1.7Kidney 293 cellsNav1.7HEK-293 cellsNav1.7 channelsCell type-dependent mannerType-dependent manner
2001
Direct Interaction with Contactin Targets Voltage-gated Sodium Channel Nav1.9/NaN to the Cell Membrane*
Liu C, Dib-Hajj S, Black J, Greenwood J, Lian Z, Waxman S. Direct Interaction with Contactin Targets Voltage-gated Sodium Channel Nav1.9/NaN to the Cell Membrane*. Journal Of Biological Chemistry 2001, 276: 46553-46561. PMID: 11581273, DOI: 10.1074/jbc.m108699200.Peer-Reviewed Original ResearchConceptsDorsal root gangliaRoot gangliaSodium channelsSmall sensory neuronsVoltage-gated sodium channelsTrigeminal ganglionNerve endingsC-fibersSensory neuronsNeuron somataChinese hamster ovary cell lineDifferent physiological propertiesGangliaHamster ovary cell lineNeuronal membranesChinese hamster ovary cellsOvary cell lineProtein complexesSurface expressionHamster ovary cellsCell linesAxonsSurface localizationCell membraneOvary cellsFibroblast Growth Factor Homologous Factor 1B Binds to the C Terminus of the Tetrodotoxin-resistant Sodium Channel rNav1.9a (NaN)*
Liu C, Dib-Hajj S, Waxman S. Fibroblast Growth Factor Homologous Factor 1B Binds to the C Terminus of the Tetrodotoxin-resistant Sodium Channel rNav1.9a (NaN)*. Journal Of Biological Chemistry 2001, 276: 18925-18933. PMID: 11376006, DOI: 10.1074/jbc.m101606200.Peer-Reviewed Original ResearchMeSH Keywords3T3 CellsAmino Acid SequenceAnimalsBlotting, WesternCell LineConserved SequenceCytoplasmDNA, ComplementaryDrug ResistanceFibroblast Growth FactorsGene LibraryGlutathione TransferaseGrowth SubstancesHumansMiceModels, BiologicalMolecular Sequence DataNAV1.9 Voltage-Gated Sodium ChannelNeuropeptidesPlasmidsProtein BindingProtein Structure, TertiaryRatsReverse Transcriptase Polymerase Chain ReactionRNASequence Analysis, DNASequence Homology, Amino AcidSodium ChannelsTetrodotoxinTissue DistributionTwo-Hybrid System TechniquesConceptsC-terminusTerminal polypeptideTwo-hybrid screenMammalian cell linesC-terminal regionN-terminal 5Fibroblast growth factor family membersFibroblast growth factor (FGF) familySodium channelsAmino acid residuesFactor family membersGrowth factor family membersCytoplasmic domainFirst growth factorGrowth factor familyFactor familyIntracellular segmentAcid residuesCell membraneFunctional significanceChannel complexDirect interactionCell linesTerminusPolypeptide