DeuteriumDeuterium OxideDeuterium Exchange MeasurementMass SpectrometryHydrogenSpectrometry, Mass, Electrospray IonizationBody WaterMagnetic Resonance SpectroscopyIndicator Dilution TechniquesIsotope LabelingKineticsBody Mass IndexWaterTandem Mass SpectrometryIsotopesSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationModels, MolecularOxygen IsotopesRadioisotope Dilution TechniqueAmidesMolecular ConformationProtein ConformationGas Chromatography-Mass SpectrometryBody Fluid CompartmentsMethenamineModels, ChemicalAmino Acid SequenceMolecular Sequence DataSolventsStereoisomerismBody CompositionGasesMolecular StructureProtonsLipid BilayersCatalysisDimyristoylphosphatidylcholineThermodynamicsOxidation-ReductionNuclear Magnetic Resonance, BiomolecularGroup IA Phospholipases A2Hydrogen-Ion ConcentrationSpectroscopy, Fourier Transform InfraredPepsin AChromatography, High Pressure LiquidFourier AnalysisProtein Structure, SecondaryTemperaturePeptidesChromatography, LiquidHydrogen BondingElectric ImpedanceProtein BindingSubstrate SpecificityNitrogen Isotopes1,2-DipalmitoylphosphatidylcholineNeutron DiffractionBinding SitesSpectrophotometry, InfraredPhosphatidylcholinesCarbon-Carbon Lyases