DeuteriumDeuterium OxideDeuterium Exchange MeasurementHydrogenMass SpectrometryBody WaterMagnetic Resonance SpectroscopyIsotope LabelingIndicator Dilution TechniquesKineticsSpectrometry, Mass, Electrospray IonizationWaterOxygen IsotopesIsotopesRadioisotope Dilution TechniqueModels, MolecularAmidesMolecular ConformationMethenamineProtein ConformationGas Chromatography-Mass SpectrometryMolecular Sequence DataBody Fluid CompartmentsNitrogen IsotopesOxidation-ReductionModels, ChemicalStereoisomerismSolventsLipid BilayersDimyristoylphosphatidylcholineAmino Acid SequenceTemperatureCarbon IsotopesProtonsHydrogen-Ion ConcentrationCatalysisGasesNuclear Magnetic Resonance, BiomolecularThermodynamicsMolecular StructureGroup IA Phospholipases A2Pepsin ACulture MediaSpectroscopy, Fourier Transform InfraredPeptidesProtein Structure, SecondaryHydrogen BondingBinding SitesBiodegradation, EnvironmentalProtein BindingHousing, AnimalFourier AnalysisPhosphatidylcholinesBody CompositionChromatography, LiquidTandem Mass Spectrometry1,2-DipalmitoylphosphatidylcholineChromatography, High Pressure LiquidNeutron DiffractionSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationGene Expression ProfilingSubstrate SpecificityElectric Impedance