Enzyme-Linked Immunosorbent AssaySubstrate SpecificityKineticsMolecular Sequence DataAmino Acid SequenceAntibodies, BacterialImmunoglobulin GBinding SitesRecombinant ProteinsCatalysisSensitivity and SpecificityModels, MolecularEscherichia coliProtein BindingAntibodies, ViralImmunoglobulin MCross ReactionsHydrolysisSerologic TestsCattleAntibody SpecificityCatalytic DomainAntigens, BacterialBase SequenceHydrogen-Ion ConcentrationAntibodies, MonoclonalBacterial ProteinsProtein ConformationCrystallography, X-RayProtein Structure, TertiaryPhosphorylationSequence Homology, Amino AcidElectrophoresis, Polyacrylamide GelMutagenesis, Site-DirectedImmunosorbent TechniquesMutationCell LineStructure-Activity RelationshipRabbitsMolecular WeightCells, CulturedCloning, MolecularOxidation-ReductionImmunoenzyme TechniquesEvaluation Studies as TopicBlotting, WesternImmunoglobulin APeptidesTime FactorsImmunoblottingEnzyme ActivationAntigens, ViralSwineMolecular StructureEpitopesReagent Kits, DiagnosticChromatography, High Pressure LiquidAdenosine TriphosphateAntibodies, ProtozoanEscherichia coli ProteinsModels, ChemicalRecombinant Fusion ProteinsSequence AlignmentOligopeptidesAntibodiesCattle DiseasesAntibodies, HelminthEndopeptidasesIsoenzymesLiverComplement Fixation TestsStereoisomerismTemperatureCarrier ProteinsFluorescent Antibody TechniqueDNA PrimersPeptide FragmentsAutoantibodiesSeroepidemiologic StudiesAmino AcidsEnzyme InhibitorsBinding, CompetitiveRNA, MessengerSubstrate CyclingMembrane ProteinsSpecies SpecificityModels, BiologicalPolymerase Chain ReactionBiological TransportSaccharomyces cerevisiaeEnzyme StabilityAmino Acid SubstitutionChromatography, GelDNASerine EndopeptidasesAntigens, ProtozoanImmunoassayNeutralization TestsSignal TransductionGlucose