Mass SpectrometryTandem Mass SpectrometrySpectrometry, Mass, Electrospray IonizationSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationGas Chromatography-Mass SpectrometryChromatography, High Pressure LiquidChromatography, LiquidProteomicsSpectrometry, Mass, Secondary IonMolecular Sequence DataProteomeAmino Acid SequenceSpectrometry, Mass, Fast Atom BombardmentElectrophoresis, Gel, Two-DimensionalPeptidesDeuterium Exchange MeasurementMolecular StructureReproducibility of ResultsIsotope LabelingCalibrationReference StandardsPeptide MappingMagnetic Resonance SpectroscopySensitivity and SpecificityCarbohydrate SequenceSolid Phase ExtractionLimit of DetectionDeuteriumProteinsChromatography, Thin LayerIonsBody Mass IndexPeptide FragmentsSubstance Abuse DetectionChromatography, GasIndicators and ReagentsMetabolomicsFourier AnalysisTrypsinAnalytic Sample Preparation MethodsProtein Processing, Post-TranslationalCyclotronsElectrophoresis, Polyacrylamide GelProtein BindingIsotopesOligosaccharidesChromatography, Reverse-PhaseSpectrophotometry, UltravioletPolysaccharidesGlycosylationMetabolomeMolecular WeightCarbohydrate ConformationIsomerismOxidation-ReductionBiotransformationCattleElectrophoresis, CapillaryChemical FractionationIndicator Dilution TechniquesSequence Analysis, ProteinHydrolysisComplex MixturesModels, MolecularRecombinant ProteinsOxygen IsotopesBiological MarkersMicrochemistryBacterial ProteinsDrug StabilitySpectrophotometry, AtomicGasesTime FactorsAcetonitrilesChromatography, Ion ExchangeStereoisomerismKineticsForensic MedicineChromatography, AffinityAtmospheric PressureProtein Array AnalysisHydrogenNanotechnologyBinding SitesAlgorithmsSpectroscopy, Fourier Transform InfraredEscherichia coliProtein ConformationCysteineChemistry Techniques, AnalyticalMethylationGlycosphingolipidsSequence Homology, Amino AcidPhosphorylationSubstrate SpecificityAmino AcidsModels, ChemicalDatabases, ProteinGlycomicsCross-Linking Reagents