2020
Complex nonlinear capacitance in outer hair cell macro-patches: effects of membrane tension
Santos-Sacchi J, Tan W. Complex nonlinear capacitance in outer hair cell macro-patches: effects of membrane tension. Scientific Reports 2020, 10: 6222. PMID: 32277153, PMCID: PMC7148382, DOI: 10.1038/s41598-020-63201-6.Peer-Reviewed Original Research
2014
Chloride and Salicylate Influence Prestin-dependent Specific Membrane Capacitance SUPPORT FOR THE AREA MOTOR MODEL* * This work was supported, in whole or in part, by National Institutes of Health Grant NIDCD DC00273 (to J. S. S.).
Santos-Sacchi J, Song L. Chloride and Salicylate Influence Prestin-dependent Specific Membrane Capacitance SUPPORT FOR THE AREA MOTOR MODEL* * This work was supported, in whole or in part, by National Institutes of Health Grant NIDCD DC00273 (to J. S. S.). Journal Of Biological Chemistry 2014, 289: 10823-10830. PMID: 24554714, PMCID: PMC4036195, DOI: 10.1074/jbc.m114.549329.Peer-Reviewed Original Research
2010
Conformational State-Dependent Anion Binding in Prestin: Evidence for Allosteric Modulation
Song L, Santos-Sacchi J. Conformational State-Dependent Anion Binding in Prestin: Evidence for Allosteric Modulation. Biophysical Journal 2010, 98: 371-376. PMID: 20141749, PMCID: PMC2814207, DOI: 10.1016/j.bpj.2009.10.027.Peer-Reviewed Original ResearchAllosteric RegulationAnimalsAnionsCell MembraneCells, CulturedCentral Nervous System AgentsChloridesElectric CapacitanceGuinea PigsHair Cells, Auditory, OuterInhibitory Concentration 50Membrane PotentialsModels, NeurologicalNonlinear DynamicsPatch-Clamp TechniquesProtein ConformationProteinsSalicylatesTemperature
2009
Prestin's Anion Transport and Voltage-Sensing Capabilities Are Independent
Bai JP, Surguchev A, Montoya S, Aronson PS, Santos-Sacchi J, Navaratnam D. Prestin's Anion Transport and Voltage-Sensing Capabilities Are Independent. Biophysical Journal 2009, 96: 3179-3186. PMID: 19383462, PMCID: PMC2718310, DOI: 10.1016/j.bpj.2008.12.3948.Peer-Reviewed Original ResearchMeSH Keywords4,4'-Diisothiocyanostilbene-2,2'-Disulfonic AcidAnalysis of VarianceAnimalsAnion Transport ProteinsAntiportersCarbon RadioisotopesChloridesCHO CellsCricetinaeCricetulusElectric CapacitanceFormatesGerbillinaeIon TransportMiceMutation, MissenseOxalatesPatch-Clamp TechniquesSalicylatesSulfate TransportersConceptsClosest phylogenetic relativesTransmembrane regionSLC26 anion transporter familyMammalian outer hair cellsMembrane protein prestinPrestin's motor functionAnion transportPhylogenetic relativesAnion transporter familyTransporter familyProtein prestinChloride-binding siteGating charge movementPrestinCharge movementHair cellsOuter hair cellsResiduesMechanistic conceptsVoltage sensingTransport capabilityCellsVoltage sensorPrevious observationsUptake studies
2002
Voltage-dependent changes in specific membrane capacitance caused by prestin, the outer hair cell lateral membrane motor
Santos-Sacchi J, Navarrete E. Voltage-dependent changes in specific membrane capacitance caused by prestin, the outer hair cell lateral membrane motor. Pflügers Archiv - European Journal Of Physiology 2002, 444: 99-106. PMID: 11976921, DOI: 10.1007/s00424-002-0804-2.Peer-Reviewed Original ResearchConceptsMembrane motorHEK cellsOuter hair cellsArea motor modelLateral membrane areaLateral plasma membranePlasma membraneProtein prestinConstant membrane thicknessConformational changesCharge movementMembrane capacitanceMolecular motorsPrestinMembrane surface areaVoltage sensorDeiters' cellsHair cellsCellsExtreme hyperpolarizationMembrane voltageVoltage-dependent changesMembrane area
1996
Effects of Salicylate and Lanthanides on Outer Hair Cell Motility and Associated Gating Charge
Kakehata S, Santos-Sacchi J. Effects of Salicylate and Lanthanides on Outer Hair Cell Motility and Associated Gating Charge. Journal Of Neuroscience 1996, 16: 4881-4889. PMID: 8756420, PMCID: PMC6579298, DOI: 10.1523/jneurosci.16-16-04881.1996.Peer-Reviewed Original ResearchConceptsOuter hair cellsEffects of salicylateConcentration-response curvesGuinea pig outer hair cellsOHC motilityAuditory frequency selectivityForm of salicylateHalf-maximal concentrationReversible tinnitusHearing lossDepolarized levelsHair cell motilityComparable groupsHair cellsOuter Hair Cell MotilityInner aspectOuter aspectSubsurface cisternaeTrypsin treatmentMotilityPressure changesHill coefficientSalicylatePresent experimentsVoltage-induced movement