Protein ConformationCrystallography, X-RayCrystallographyModels, MolecularMolecular ConformationProtein Structure, SecondaryBinding SitesAmino Acid SequenceMolecular Sequence DataProtein BindingProtein Structure, TertiaryProtein FoldingCircular DichroismThermodynamicsHydrogen BondingProteinsMagnetic Resonance SpectroscopyDeuterium Exchange MeasurementCrystallizationNuclear Magnetic Resonance, BiomolecularKineticsMolecular StructureSolutionsSpectrometry, FluorescenceStructure-Activity RelationshipLigandsProtein Structure, QuaternaryModels, ChemicalProtein DenaturationX-Ray DiffractionMyoglobinMolecular Dynamics SimulationTemperatureOptical Rotatory DispersionCryoelectron MicroscopyHydrogen-Ion ConcentrationMutagenesis, Site-DirectedMutationComputer SimulationRecombinant ProteinsMuramidaseSpectrum Analysis, RamanWaterSynchrotronsSilica GelEscherichia coliCatalysisAmino Acid SubstitutionBacterial ProteinsStatic ElectricityTryptophanDimerizationProtein StabilityPeptidesCatalytic DomainSpectroscopy, Fourier Transform InfraredElectronsSolventsHydrogenMacromolecular SubstancesHydrophobic and Hydrophilic InteractionsSpectrophotometry, UltravioletBacteriorhodopsinsApoproteinsSpectrophotometry, InfraredSubstrate SpecificityAnilino NaphthalenesulfonatesSpectrum AnalysisScattering, Small AngleMass SpectrometryProtonsBiophysicsSequence Homology, Amino AcidNeutron DiffractionAlgorithmsDNAEnzyme StabilityDeuteriumPeptide FragmentsPrionsOxidation-ReductionElectron Spin Resonance SpectroscopyFourier AnalysisBiophysical PhenomenaGuanidineCattlePhotochemistrySequence AlignmentMutant ProteinsProtein MultimerizationHemeSchiff BasesHydrolysisCysteineHorsesPhotoreceptors, MicrobialAmidesSpectrophotometryChemistry, PhysicalAmyloid