Chromatography, AffinityInteinsChromatography, Ion ExchangeChromatography, GelNitrilotriacetic AcidChromatography, High Pressure LiquidElectrophoresis, Polyacrylamide GelMolecular Sequence DataPolyhydroxyalkanoatesMolecular WeightIndicators and ReagentsAmino Acid SequenceChromatographyEnteropeptidaseEscherichia coliProtein RefoldingCloning, MolecularRecombinant Fusion ProteinsRecombinant ProteinsStreptavidinKineticsAffinity LabelsChromatography, GasHistidineMass SpectrometryMaltose-Binding ProteinsBacterial ProteinsChromatography, LiquidProteinsChromatography, Thin LayerProtein EngineeringBase SequenceSolubilityChromatography, DEAE-CelluloseProtein BindingSulfhydryl ReagentsGenetic VectorsSubstrate SpecificitySequence Homology, Amino AcidHydrogen-Ion ConcentrationAmino AcidsProteomicsPeptidesCrystallography, X-RayCarrier ProteinsDNA, ComplementaryPlasmidsModels, MolecularChromatography, AgaroseCell LineIsoelectric PointGene ExpressionIsoelectric FocusingProtein Structure, TertiaryCattleChemistryChemical PhenomenaSepharoseHydroxyapatitesTemperatureCross-Linking ReagentsMacromolecular SubstancesImmunodiffusionSpectrophotometry, UltravioletCarbohydratesAmmonium SulfateCrystallizationGas Chromatography-Mass SpectrometryMethodsEnzyme StabilityChemical PrecipitationRabbitsChromatography, Reverse-PhaseChromatography, PaperPeptide FragmentsDrug StabilityCentrifugation, Density GradientLiverDurapatiteHydrolysisChemical FractionationSpectrophotometryTrypsinBinding SitesHot TemperatureSulfhydryl CompoundsCations, DivalentReagent StripsDetergentsTandem Mass SpectrometryElectrophoresis, DiscIsoenzymesSpectrometry, Mass, Electrospray IonizationMagnetic Resonance SpectroscopyGlycoproteinsEthylmaleimideAntibodies, MonoclonalCountercurrent DistributionCysteineGlycoside Hydrolases