2020
Maturation of Voltage-induced Shifts in SLC26a5 (Prestin) Operating Point during Trafficking and Membrane Insertion
Zhai F, Song L, Bai JP, Dai C, Navaratnam D, Santos-Sacchi J. Maturation of Voltage-induced Shifts in SLC26a5 (Prestin) Operating Point during Trafficking and Membrane Insertion. Neuroscience 2020, 431: 128-133. PMID: 32061780, PMCID: PMC8720582, DOI: 10.1016/j.neuroscience.2020.02.003.Peer-Reviewed Original ResearchConceptsMembrane motor proteinVoltage-dependent proteinsMembrane insertionOuter hair cellsMotor proteinsPrestin densityHEK cell linesConformational changesBiophysical forcesOHC electromotilityProteinCell linesMembrane potentialCooperative interactionsPrestinHair cellsCochlear amplificationTransmembrane voltageNonlinear capacitanceMammalsTraffickingVoltage-induced shiftElectromotilityMaturationMembrane
2017
Prestin: Molecular Mechanisms Underlying Outer Hair Cell Electromotility
Santos-Sacchi J, Navaratnam D, Raphael R, Oliver D. Prestin: Molecular Mechanisms Underlying Outer Hair Cell Electromotility. Springer Handbook Of Auditory Research 2017, 62: 113-145. DOI: 10.1007/978-3-319-52073-5_5.Peer-Reviewed Original ResearchOuter hair cellsMammalian inner earOuter Hair Cell ElectromotilityHair cell electromotilitySLC26 familyMolecular mechanismsMembrane lipidsConformational changesMechanical feedback mechanismMolecular motorsTension sensitivityPrestinHair cellsVoltage-sensor charge movementAnion transportersReceptor potentialProteinMolecular conformational changesInner earStructural determinationIntracellular chlorideCharge movementTraffickingFeedback mechanismMechanism
2011
Chloride Dependent Coupling of Molecular to Cellular Mechanics in the Outer Hair Cell of Corti's Organ
Song L, Santos-Sacchi J, Shera C, Olson E. Chloride Dependent Coupling of Molecular to Cellular Mechanics in the Outer Hair Cell of Corti's Organ. AIP Conference Proceedings 2011, 1403: 179-184. DOI: 10.1063/1.3658083.Peer-Reviewed Original ResearchCellular mechanicsConformational changesMotor protein prestinProtein prestinMolecular eventsLateral membranesOHC lateral membraneCellular expressionWhole cellsElectromotilityOuter Hair CellsPrestinHair cellsReceptor potentialNonlinear capacitanceMolecular conformational changesIntracellular chloride levelsCellsTight couplingOrgansOHC receptor potentialsExpressionMembraneNormal levelsVivo
2003
Cl− flux through a non‐selective, stretch‐sensitive conductance influences the outer hair cell motor of the guinea‐pig
Rybalchenko V, Santos‐Sacchi J. Cl− flux through a non‐selective, stretch‐sensitive conductance influences the outer hair cell motor of the guinea‐pig. The Journal Of Physiology 2003, 547: 873-891. PMID: 12562920, PMCID: PMC2342734, DOI: 10.1111/j.1469-7793.2003.00873.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCarbenoxoloneCell MembraneChloride ChannelsChloridesCyclooxygenase InhibitorsElectric CapacitanceElectric ConductivityGadoliniumGuinea PigsHair Cells, Auditory, OuterIon Channel GatingMechanotransduction, CellularMembrane PotentialsMercuric ChlorideMicrodialysisNiflumic AcidOctanolsProteinsSulfonic AcidsConceptsOuter hair cell motorLateral membranesVoltage-dependent conformational changesLateral plasma membranePlasma membraneMotor proteinsCell motorProtein transitionsConformational changesRecent identificationPrestinSomatic motilityAllosteric modulationCL sensitivityAnion fluxHair cellsCochlear amplificationAcoustic ratesOuter hair cellsAlternative mechanismComplicated roleMembranePronounced shiftCellsAmplification
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
2001
Effects of membrane potential and tension on prestin, the outer hair cell lateral membrane motor protein
Santos‐Sacchi J, Shen W, Zheng J, Dallos P. Effects of membrane potential and tension on prestin, the outer hair cell lateral membrane motor protein. The Journal Of Physiology 2001, 531: 661-666. PMID: 11251048, PMCID: PMC2278494, DOI: 10.1111/j.1469-7793.2001.0661h.x.Peer-Reviewed Original ResearchConceptsMembrane tensionMembrane motor proteinMembrane-bound proteinsHuman embryonic kidney cellsLateral plasma membraneEmbryonic kidney cellsMolecular basisPlasma membraneProtein prestinMotor proteinsConformational changesHigh-resolution analysisPrestin activityPrestinKidney cellsMembrane potential