1998
Activation of Shaker Potassium Channels
Schoppa N, Sigworth F. Activation of Shaker Potassium Channels. The Journal Of General Physiology 1998, 111: 295-311. PMID: 9450945, PMCID: PMC2222768, DOI: 10.1085/jgp.111.2.295.Peer-Reviewed Original ResearchActivation of Shaker Potassium Channels
Schoppa N, Sigworth F. Activation of Shaker Potassium Channels. The Journal Of General Physiology 1998, 111: 313-342. PMID: 9450946, PMCID: PMC2222769, DOI: 10.1085/jgp.111.2.313.Peer-Reviewed Original ResearchActivation of Shaker Potassium Channels
Schoppa N, Sigworth F. Activation of Shaker Potassium Channels. The Journal Of General Physiology 1998, 111: 271-294. PMID: 9450944, PMCID: PMC2222764, DOI: 10.1085/jgp.111.2.271.Peer-Reviewed Original Research
1997
Enhanced Closed-state Inactivation in a Mutant Shaker K+ Channel
Ayer, Jr. R, Sigworth F. Enhanced Closed-state Inactivation in a Mutant Shaker K+ Channel. The Journal Of Membrane Biology 1997, 157: 215-230. PMID: 9178609, DOI: 10.1007/s002329900230.Peer-Reviewed Original Research
1994
Oxygen deprivation activates an ATP-inhibitable K+ channel in substantia nigra neurons
Jiang C, Sigworth F, Haddad G. Oxygen deprivation activates an ATP-inhibitable K+ channel in substantia nigra neurons. Journal Of Neuroscience 1994, 14: 5590-5602. PMID: 8083755, PMCID: PMC6577106, DOI: 10.1523/jneurosci.14-09-05590.1994.Peer-Reviewed Original ResearchConceptsSubstantia nigra neuronsRat substantia nigra neuronsEffects of hypoxiaGlibenclamide binding sitesEffect of ATPCell-attached patchesNeuronal survivalKATP channelsResult of Ca2Different subtypesOutward currentsNeuronal structuresFree Ca2HypoxiaMetabolic stressNeuronsDeleterious changesSingle-channel currentsChannel activityO2 deprivationInternal ATPOxygen deprivationActivationHigh Ca2Membrane potential
1993
Substitution of a hydrophobic residue alters the conformational stability of Shaker K+ channels during gating and assembly
McCormack K, Lin L, Sigworth F. Substitution of a hydrophobic residue alters the conformational stability of Shaker K+ channels during gating and assembly. Biophysical Journal 1993, 65: 1740-1748. PMID: 8274662, PMCID: PMC1225901, DOI: 10.1016/s0006-3495(93)81202-5.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBase SequenceBiophysical PhenomenaBiophysicsDNA, ComplementaryDrosophilaDrug StabilityFemaleIon Channel GatingMembrane PotentialsMolecular Sequence DataMutagenesis, Site-DirectedOocytesPeptidesPotassium ChannelsProtein ConformationShaker Superfamily of Potassium ChannelsThermodynamicsXenopus laevisConceptsUncharged amino acid residuesLeucine heptad repeatWild-type subunitsPosition 370Large hydrophobic residuesAmino acid residuesSequence motifsConservative substitutionsHeptad repeatHydrophobic residuesVoltage-gated channelsLeucine residuesAcid residuesTertiary structureS4 segmentSpecific hydrophobic interactionsHydrophilic residuesResidue altersChannel subunitsInactivation gatingChannel complexSubunitsConformational stabilityConformational transitionResidues
1992
Tandem linkage of Shaker K+ channel subunits does not ensure the stoichiometry of expressed channels
McCormack K, Lin L, Iverson L, Tanouye M, Sigworth F. Tandem linkage of Shaker K+ channel subunits does not ensure the stoichiometry of expressed channels. Biophysical Journal 1992, 63: 1406-1411. PMID: 1477286, PMCID: PMC1261445, DOI: 10.1016/s0006-3495(92)81703-4.Peer-Reviewed Original Research
1991
Patch recordings from the electrocytes of Electrophorus electricus. Na currents and PNa/PK variability.
Shenkel S, Sigworth F. Patch recordings from the electrocytes of Electrophorus electricus. Na currents and PNa/PK variability. The Journal Of General Physiology 1991, 97: 1013-1041. PMID: 1650809, PMCID: PMC2216506, DOI: 10.1085/jgp.97.5.1013.Peer-Reviewed Original Research