HaptensPurine-Nucleoside PhosphorylasePurine NucleosidesAntibodies, CatalyticThionucleosidesPyrimidinonesModels, MolecularAntibodiesCatalysisKineticsSugar AlcoholsArginine KinaseSaponariaPyrrolidinesBinding SitesMagnesium CompoundsProtein ConformationCrystallography, X-RayPentosephosphatesSubstrate SpecificityDeoxyadenosinesMethylthioinosineAluminum CompoundsN-Glycosyl HydrolasesChorismate MutaseAntibody SpecificityCatalytic DomainGuanine DeaminaseCoformycinProtein BindingFluoridesModels, ChemicalMolecular StructureStructure-Activity RelationshipProtocatechuate-3,4-DioxygenaseMolecular Sequence DataRibosome Inactivating ProteinsAntibodies, ViralRibulose-Bisphosphate CarboxylaseAmino Acid SequenceEnzyme InhibitorsHydrolysisAntibodies, MonoclonalHydrogen BondingRhodospirillumMolecular ConformationEscherichia coliAntibodies, BacterialHypoxanthinePepstatinsAdenosine DiphosphateThermodynamicsEntropyAdenineAntibody FormationCrystallographyPurinesCrystallizationEnzymesLigandsPyrrolesProtein Structure, TertiaryOrganophosphorus CompoundsAntibodies, NeutralizingProtein FoldingAspartic Acid EndopeptidasesMathematicsHydrogen-Ion ConcentrationX-Ray DiffractionBinding Sites, AntibodyAntibody AffinityDrug DesignMutationAdenosine TriphosphateRecombinant ProteinsMagnetic Resonance SpectroscopyFluorescent Antibody TechniqueDimerizationEpitopesBiocatalysisQuantum TheoryProtein Structure, SecondaryAntibodies, Anti-IdiotypicPhase TransitionArginineRabbitsCloning, MolecularStereoisomerismCross ReactionsStatic ElectricityProtein DenaturationAntigen-Antibody ReactionsHIV AntibodiesMutagenesis, Site-DirectedAntibodies, BispecificTemperatureAntibodies, NeoplasmAntibodies, ProtozoanImmunoglobulin Fab FragmentsMice, Inbred BALB C