Lipid BilayersCell MembraneMembrane LipidsMembranes, ArtificialMembrane FluidityMembranesPhosphatidylcholinesIntracellular MembranesErythrocyte MembraneMembrane PotentialsLiposomesPhosphatidylethanolaminesPhospholipidsMolecular ConformationCell Membrane PermeabilityPhosphatidylserinesModels, BiologicalModels, MolecularElectric ConductivityTemperatureCholesterolMicroscopy, ElectronProtein Structure, TertiaryProtein ConformationIon ChannelsGramicidinAlamethicinFluorescent DyesSpectrometry, FluorescenceProtein Structure, SecondaryAmino Acid SequenceBasement MembraneCalorimetry, Differential ScanningMolecular Sequence DataDimyristoylphosphatidylcholine1,2-DipalmitoylphosphatidylcholineProtein BindingHydrophobic and Hydrophilic InteractionsKineticsPermeabilityFluorescence PolarizationMembrane ProteinsBiophysicsLipidsX-Ray DiffractionTetraphenylborateWaterThermodynamicsBiophysical PhenomenaErythrocytesPhase TransitionPorinsDiffusionSphingomyelinsEscherichia coliPhenylhydrazinesMembrane Transport ProteinsMathematicsModels, ChemicalHydrogen-Ion ConcentrationMembrane GlycoproteinsBinding SitesPhosphatidylglycerolsElectrochemistryCalciumProtein TransportFreeze FracturingCell LineMitochondrial MembranesSurface PropertiesBiological TransportMagnetic Resonance SpectroscopySynaptic MembranesMicroscopy, FluorescenceSolubilityBacterial ProteinsPeptidesDetergentsPotassiumElectrophoresis, Polyacrylamide GelCationsMelittenIonsMolecular StructureCarrier ProteinsTime FactorsCells, CulturedCell FractionationAnionsErgosterolPhospholipid Transfer ProteinsCattleStructure-Activity RelationshipMicellesMutationSpin LabelsValinomycinCell Membrane StructuresStatic ElectricityEndoplasmic Reticulum