Mass SpectrometryTandem Mass SpectrometrySpectrometry, Mass, Electrospray IonizationSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationGas Chromatography-Mass SpectrometryChromatography, LiquidChromatography, High Pressure LiquidMolecular Sequence DataAmino Acid SequenceProteomicsMolecular WeightElectrophoresis, Polyacrylamide GelChromatography, AffinitySpectrometry, Mass, Secondary IonChromatography, Ion ExchangeProteomeChromatography, GelSpectrometry, Mass, Fast Atom BombardmentElectrophoresis, Gel, Two-DimensionalSubstrate SpecificityKineticsChromatographyPeptidesHydrogen-Ion ConcentrationAmino AcidsPeptide MappingIsotope LabelingDeuterium Exchange MeasurementMolecular StructureEscherichia coliReproducibility of ResultsMagnetic Resonance SpectroscopyProteinsPeptide FragmentsRecombinant ProteinsCarbohydrate SequenceReference StandardsCalibrationCattleChromatography, Thin LayerSolid Phase ExtractionChromatography, DEAE-CelluloseProtein BindingSensitivity and SpecificityIsoelectric FocusingIsoelectric PointDeuteriumCloning, MolecularBacterial ProteinsIonsTrypsinLimit of DetectionBase SequenceIndicators and ReagentsBody Mass IndexChromatography, GasChemical FractionationHydrolysisSequence Homology, Amino AcidMetabolomicsSubstance Abuse DetectionProtein Processing, Post-TranslationalTemperatureGlycosylationPolysaccharidesOxidation-ReductionFourier AnalysisOligosaccharidesCrystallizationCarbohydratesSpectrophotometry, UltravioletAnalytic Sample Preparation MethodsEnzyme StabilityCyclotronsDrug StabilityBinding SitesCarbohydrate ConformationIsotopesSequence Analysis, ProteinProtein ConformationModels, MolecularChemistryMetabolomeChromatography, Reverse-PhaseHydroxyapatitesChemical PhenomenaLiverSolubilityIsomerismBlotting, WesternElectrophoresis, CapillaryCell LineComplex MixturesMacromolecular SubstancesChemical PrecipitationIndicator Dilution TechniquesSequence AnalysisAmmonium SulfateBiotransformationSequence Alignment