Mass SpectrometryTandem Mass SpectrometrySpectrometry, Mass, Electrospray IonizationSmall Molecule LibrariesSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationGas Chromatography-Mass SpectrometryChromatography, LiquidChromatography, High Pressure LiquidMolecular Sequence DataProteomicsAmino Acid SequenceMolecular StructureSpectrometry, Mass, Secondary IonProteomePeptidesProtein BindingSpectrometry, Mass, Fast Atom BombardmentModels, MolecularElectrophoresis, Gel, Two-DimensionalCell Adhesion MoleculesProteinsBinding SitesMagnetic Resonance SpectroscopyHigh-Throughput Screening AssaysDeuterium Exchange MeasurementIsotope LabelingReproducibility of ResultsDrug Evaluation, PreclinicalPeptide FragmentsPeptide MappingCell LineProtein ConformationLigandsSignal TransductionKineticsCalibrationCell Line, TumorDrug DesignReference StandardsMetabolomicsIonsProtein Structure, TertiarySensitivity and SpecificityMolecular WeightRecombinant ProteinsStructure-Activity RelationshipCarbohydrate SequenceDrug DiscoveryBase SequenceDeuteriumElectrophoresis, Polyacrylamide GelSolid Phase ExtractionCells, CulturedLimit of DetectionBacterial ProteinsMutationCombinatorial Chemistry TechniquesEscherichia coliBody Mass IndexPhosphorylationModels, BiologicalIndicators and ReagentsCattleChromatography, Thin LayerTime FactorsCrystallography, X-RayProtein Processing, Post-TranslationalTrypsinMetabolomeSubstance Abuse DetectionChromatography, GasMolecular ConformationFourier AnalysisGlycosylationEnzyme InhibitorsOxidation-ReductionSubstrate SpecificitySequence Homology, Amino AcidPolysaccharidesBlotting, WesternAnalytic Sample Preparation MethodsStereoisomerismOligosaccharidesNanotechnologySequence Analysis, ProteinDNACyclotronsHydrolysisPharmaceutical PreparationsIsomerismIsotopesMembrane ProteinsInhibitory Concentration 50Mice, Inbred C57BLModels, ChemicalAlgorithmsAntineoplastic AgentsBiological MarkersCarbohydrate ConformationProtein Array Analysis