Sulfur IsotopesChemical FractionationOxygen IsotopesCarbon IsotopesCell FractionationMass SpectrometryFractionation, Field FlowMolecular Sequence DataSubcellular FractionsAmino Acid SequenceBody Mass IndexTandem Mass SpectrometryMolecular WeightSpectrometry, Mass, Electrospray IonizationCell LineKineticsCells, CulturedElectrophoresis, Polyacrylamide GelSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationCell MembraneBase SequenceSignal TransductionChromatography, GelProtein BindingHydrogen-Ion ConcentrationCalciumTime FactorsMembrane ProteinsMutationChromatography, Ion ExchangePhosphorylationChromatographyChromatography, High Pressure LiquidCell NucleusRNA, MessengerChromatography, LiquidCarrier ProteinsBlotting, WesternProteinsRecombinant ProteinsMice, Inbred C57BLBiological TransportCytosolSubstrate SpecificityModels, BiologicalCattleLiverChemistry Techniques, AnalyticalHeLa CellsCloning, MolecularTransfectionTemperatureCytoplasmEnzyme ActivationProteomicsBacterial ProteinsPeptidesEscherichia coliRecombinant Fusion ProteinsProtein TransportAmino AcidsBinding SitesTranscription, GeneticDNA-Binding Proteins