2021
The NaVy paradox: reducing sodium currents increases excitability
Kaczmarek LK. The NaVy paradox: reducing sodium currents increases excitability. Trends In Neurosciences 2021, 44: 767-768. PMID: 34373125, PMCID: PMC8813127, DOI: 10.1016/j.tins.2021.07.008.Peer-Reviewed Original Research
2017
An ALS-Associated Mutant SOD1 Rapidly Suppresses KCNT1 (Slack) Na+-Activated K+ Channels in Aplysia Neurons
Zhang Y, Ni W, Horwich AL, Kaczmarek LK. An ALS-Associated Mutant SOD1 Rapidly Suppresses KCNT1 (Slack) Na+-Activated K+ Channels in Aplysia Neurons. Journal Of Neuroscience 2017, 37: 2258-2265. PMID: 28119399, PMCID: PMC5338764, DOI: 10.1523/jneurosci.3102-16.2017.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAplysiaBiophysicsCells, CulturedElectric StimulationEnzyme InhibitorsGanglia, InvertebrateHumansLuminescent ProteinsMembrane PotentialsMicroinjectionsMorpholinosMutationNerve Tissue ProteinsNeuronsPatch-Clamp TechniquesPotassium ChannelsPotassium Channels, Sodium-ActivatedRNA, Small InterferingSodiumSuperoxide Dismutase-1ConceptsAmyotrophic lateral sclerosisSuperoxide dismutase 1Mutant superoxide dismutase 1Potassium currentC-Jun N-terminal kinaseNeuronal excitabilityLateral sclerosisFatal adult-onset neurodegenerative diseaseN-terminal kinaseMutant human Cu/ZnNeuronal developmentDismutase 1Adult-onset neurodegenerative diseaseCurrent-clamp recordingsMotor neuron toxicityOutward potassium currentHuman Cu/ZnWild-type superoxide dismutase 1Neuron toxicityActivity of NaBag cell neuronsClamp recordingsNeuronal functionCell neuronsAction potentials
2016
International Union of Basic and Clinical Pharmacology. C. Nomenclature and Properties of Calcium-Activated and Sodium-Activated Potassium Channels
Kaczmarek LK, Aldrich RW, Chandy KG, Grissmer S, Wei AD, Wulff H. International Union of Basic and Clinical Pharmacology. C. Nomenclature and Properties of Calcium-Activated and Sodium-Activated Potassium Channels. Pharmacological Reviews 2016, 69: 1-11. PMID: 28267675, PMCID: PMC11060434, DOI: 10.1124/pr.116.012864.Peer-Reviewed Original Research
2013
A sodium-activated potassium channel supports high-frequency firing and reduces energetic costs during rapid modulations of action potential amplitude
Markham MR, Kaczmarek LK, Zakon HH. A sodium-activated potassium channel supports high-frequency firing and reduces energetic costs during rapid modulations of action potential amplitude. Journal Of Neurophysiology 2013, 109: 1713-1723. PMID: 23324315, PMCID: PMC3628015, DOI: 10.1152/jn.00875.2012.Peer-Reviewed Original Research
2012
Regulation of Neuronal Excitability by Interaction of Fragile X Mental Retardation Protein with Slack Potassium Channels
Zhang Y, Brown MR, Hyland C, Chen Y, Kronengold J, Fleming MR, Kohn AB, Moroz LL, Kaczmarek LK. Regulation of Neuronal Excitability by Interaction of Fragile X Mental Retardation Protein with Slack Potassium Channels. Journal Of Neuroscience 2012, 32: 15318-15327. PMID: 23115170, PMCID: PMC3518385, DOI: 10.1523/jneurosci.2162-12.2012.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnisomycinAplysiaCHO CellsCloning, MolecularCricetinaeCricetulusElectrophysiological PhenomenaFragile X Mental Retardation ProteinImmunohistochemistryImmunoprecipitationNeuronsPatch-Clamp TechniquesPotassium ChannelsProtein Synthesis InhibitorsRNA InterferenceRNA, Small InterferingSodiumSynapsesConceptsNeuronal excitabilitySlack potassium channelsTetrodotoxin-sensitive componentCurrent-clamp recordingsSlack channelsMental retardation proteinBag cell neuronsSustained componentIntracellular injectionNeuronal firingInhibitory periodSynaptic stimulationPotassium currentCell neuronsAction potentialsOutward currentsPotassium channelsProlonged changesNeuronsAplysia bag cell neuronsProtein synthesis inhibitor anisomycinExcitabilityFragile X Mental Retardation ProteinCommon formIntellectual disability
2011
Potassium channel modulation and auditory processing
Brown MR, Kaczmarek LK. Potassium channel modulation and auditory processing. Hearing Research 2011, 279: 32-42. PMID: 21414395, PMCID: PMC3137660, DOI: 10.1016/j.heares.2011.03.004.Peer-Reviewed Original ResearchConceptsAuditory brainstem nucleiBrainstem nucleiPotassium channelsPotassium channel modulationSynaptic stimulationFiring patternsOverall sensitivityChannel modulationNeuronsAuditory environmentAuditory processingAuditory systemHigh rateAuditory informationIntrinsic electrical propertiesKey proteinsReview article
2007
Sodium‐dependent potassium channels of a Slack‐like subtype contribute to the slow afterhyperpolarization in lamprey spinal neurons
Wallén P, Robertson B, Cangiano L, Löw P, Bhattacharjee A, Kaczmarek LK, Grillner S. Sodium‐dependent potassium channels of a Slack‐like subtype contribute to the slow afterhyperpolarization in lamprey spinal neurons. The Journal Of Physiology 2007, 585: 75-90. PMID: 17884929, PMCID: PMC2375474, DOI: 10.1113/jphysiol.2007.138156.Peer-Reviewed Original ResearchConceptsSodium-dependent potassium channelSlow afterhyperpolarizationAction potentialsPotassium channelsSingle action potentialLamprey spinal neuronsLamprey spinal cordLamprey locomotor networkSlow AHPLarge neuronsSpinal neuronsSpinal cordLocomotor networksBurst activityKNa channelsDistinct immunoreactivityGray matterReversal potentialNeuronsChloride injectionAfterhyperpolarizationRapid activationFunctional roleHigh-level activitiesSlack geneSlack and Slick KNa Channels Regulate the Accuracy of Timing of Auditory Neurons
Yang B, Desai R, Kaczmarek LK. Slack and Slick KNa Channels Regulate the Accuracy of Timing of Auditory Neurons. Journal Of Neuroscience 2007, 27: 2617-2627. PMID: 17344399, PMCID: PMC6672517, DOI: 10.1523/jneurosci.5308-06.2007.Peer-Reviewed Original ResearchMeSH KeywordsAction PotentialsAnimalsAnimals, NewbornAuditory PathwaysBithionolBrain StemComputer SimulationElectric ConductivityElectric StimulationElectrophysiologyIn Vitro TechniquesMiceModels, NeurologicalNerve Tissue ProteinsNeuronsNeurons, AfferentPotassium ChannelsPotassium Channels, Sodium-ActivatedReaction TimeSodium
2005
For K+ channels, Na+ is the new Ca2+
Bhattacharjee A, Kaczmarek LK. For K+ channels, Na+ is the new Ca2+. Trends In Neurosciences 2005, 28: 422-428. PMID: 15979166, DOI: 10.1016/j.tins.2005.06.003.Peer-Reviewed Original Research
2003
Slick (Slo2.1), a Rapidly-Gating Sodium-Activated Potassium Channel Inhibited by ATP
Bhattacharjee A, Joiner WJ, Wu M, Yang Y, Sigworth FJ, Kaczmarek LK. Slick (Slo2.1), a Rapidly-Gating Sodium-Activated Potassium Channel Inhibited by ATP. Journal Of Neuroscience 2003, 23: 11681-11691. PMID: 14684870, PMCID: PMC6740956, DOI: 10.1523/jneurosci.23-37-11681.2003.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphateAmino Acid SequenceAnimalsCells, CulturedChloridesCHO CellsCloning, MolecularCricetinaeElectric ConductivityHumansIon Channel GatingKineticsMolecular Sequence DataPotassium ChannelsPotassium Channels, Sodium-ActivatedRatsSequence AlignmentSodiumTissue DistributionXenopusThe Sodium-Activated Potassium Channel Is Encoded by a Member of the Slo Gene Family
Yuan A, Santi CM, Wei A, Wang Z, Pollak K, Nonet M, Kaczmarek L, Crowder CM, Salkoff L. The Sodium-Activated Potassium Channel Is Encoded by a Member of the Slo Gene Family. Neuron 2003, 37: 765-773. PMID: 12628167, DOI: 10.1016/s0896-6273(03)00096-5.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsCaenorhabditis elegansCells, CulturedFemaleLarge-Conductance Calcium-Activated Potassium ChannelsMembrane PotentialsMolecular Sequence DataMultigene FamilyMutationNerve Tissue ProteinsOocytesPotassium ChannelsPotassium Channels, Calcium-ActivatedPotassium Channels, Sodium-ActivatedSequence Homology, Amino AcidSodiumXenopus
1995
A new family of outwardly rectifying potassium channel proteins with two pore domains in tandem
Ketchum K, Joiner W, Sellers A, Kaczmarek L, Goldstein S. A new family of outwardly rectifying potassium channel proteins with two pore domains in tandem. Nature 1995, 376: 690-695. PMID: 7651518, DOI: 10.1038/376690a0.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBase SequenceCaenorhabditis elegansCells, CulturedDNA PrimersDrosophilaMolecular Sequence DataOocytesPatch-Clamp TechniquesPotassiumPotassium ChannelsProtein ConformationRecombinant ProteinsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSequence Homology, Amino AcidSodiumXenopus laevisConceptsP domainPotassium channel proteinCaenorhabditis elegansCommon structural motifChannel proteinsPore domainCellular membranesPrimary structureExcised membrane patchesSignature sequencesFlow of ionsAmino acidsXenopus laevisSelective currentMembrane potentialStructural motifsMembrane patchesPotassium channelsExternal divalent cationsDivalent cationsFunctional propertiesElegansVoltage-dependent mannerGenomeDomain
1994
Autoactive peptides act at three distinct receptors to depolarize the bag cell neurons of Aplysia
Loechner K, Kaczmarek L. Autoactive peptides act at three distinct receptors to depolarize the bag cell neurons of Aplysia. Journal Of Neurophysiology 1994, 71: 195-203. PMID: 8158229, DOI: 10.1152/jn.1994.71.1.195.Peer-Reviewed Original Research
1990
Transfection of activated ras into an excitable cell line (AtT-20) alters tetrodotoxin sensitivity of voltage-dependent sodium current
Flamm R, Birnberg N, Kaczmarek L. Transfection of activated ras into an excitable cell line (AtT-20) alters tetrodotoxin sensitivity of voltage-dependent sodium current. Pflügers Archiv - European Journal Of Physiology 1990, 416: 120-125. PMID: 2191273, DOI: 10.1007/bf00370232.Peer-Reviewed Original ResearchConceptsTTX-sensitive currentsResistant currentSodium currentTTX-resistant sodium currentsVoltage-dependent sodium currentsSodium channel blocker tetrodotoxinTTX-resistant currentChannel blocker tetrodotoxinAnterior pituitary tumorsVoltage-dependent sodiumCell linesC-Ha-ras geneTTX-sensitiveBlocker tetrodotoxinPituitary tumorsExcitable cell lineC-Ha-ras oncogeneTetrodotoxin sensitivityTetrodotoxinAtT-20 cellsControl cellsCellsRate of inactivationTransfectionTumors
1983
Calcium entry causes a prolonged refractory period in peptidergic neurons of Aplysia
Kaczmarek L, Kauer J. Calcium entry causes a prolonged refractory period in peptidergic neurons of Aplysia. Journal Of Neuroscience 1983, 3: 2230-2239. PMID: 6631477, PMCID: PMC6564640, DOI: 10.1523/jneurosci.03-11-02230.1983.Peer-Reviewed Original ResearchConceptsOnset of afterdischargeProlonged refractory periodBag cell clustersBag cell neuronsCumulative depolarizationRefractory periodNatural refractorinessCell neuronsCalcium entryAction potentialsConcentration of ionophoreExtracellular tetraethylammonium ionsRepetitive intracellular stimulationPeptidergic bag cell neuronsPleuroabdominal connectivesCell clustersCalcium-deficient mediumAdenylate cyclase activatorCalcium-containing mediumMean durationPeptidergic neuronsAbdominal ganglionAfterdischargesBrief trainsIntracellular stimulation
1982
An early sodium and a late calcium phase in the afterdischarge of peptide-secreting neurons ofAplysia
Kaczmarek L, Jennings K, Strumwasser F. An early sodium and a late calcium phase in the afterdischarge of peptide-secreting neurons ofAplysia. Brain Research 1982, 238: 105-115. PMID: 6282390, DOI: 10.1016/0006-8993(82)90774-0.Peer-Reviewed Original Research