CatalysisAlkadienesHydrogen-Ion ConcentrationKineticsModels, MolecularProtonsBinding SitesSubstrate SpecificityMolecular Sequence DataAcid-Base EquilibriumAcid-Base ImbalanceBase PairingBase SequenceCytosineNucleic AcidsGuanineBiocatalysisCatalytic DomainCarbocysteineHydrogen BondingCrystallography, X-RayAlkalosisPurinesAmino Acid SequenceMutagenesis, Site-DirectedAlkaliesAdenineAcidosisModels, ChemicalBicarbonatesDNA, B-FormEscherichia coliHistidineAlkalosis, RespiratoryNucleic Acid ConformationMolecular StructureXanthopterinProtein ConformationEducation, VeterinaryDNASodium BicarbonateUracilSchiff BasesHypermediaAcidsThermodynamicsSkull BaseBase CompositionMolecular ConformationMagnetic Resonance SpectroscopyThymineStructure-Activity RelationshipStereoisomerismXylosidasesMutationbeta-GlucosidaseGasesProtein BindingNucleic Acid DenaturationSpectrophotometry, UltravioletPhysiologyWaterProtein Structure, TertiarySequence Homology, Amino AcidElectronsSequence AlignmentAmmonium ChlorideHydrogen