PeptidesAlanineAmino Acid SequenceProtein Structure, SecondaryMolecular Sequence DataModels, MolecularProtein ConformationBinding SitesPeptide FragmentsProtein Structure, TertiaryProtein BindingKineticsCrystallography, X-RayBase SequenceSequence Homology, Amino AcidStructure-Activity RelationshipHelix (Snails)Mutagenesis, Site-DirectedMagnetic Resonance SpectroscopyEscherichia coliRecombinant ProteinsProtein FoldingAmino AcidsMutationSubstrate SpecificityHydrogen BondingAlanine TransaminaseSequence AlignmentDisulfidesPeptide LibraryOligopeptidesHydrolysisCircular DichroismAlanine RacemaseProlinePeptides, CyclicCatalysisPeptide BiosynthesisNuclear Magnetic Resonance, BiomolecularAmino Acid SubstitutionTrypsinCloning, MolecularDimerizationInterleukin-1betaCell LineProteinsPeptide MappingAntimicrobial Cationic PeptidesBacterial ProteinsModels, Chemicalalpha 1-AntitrypsinHydrogen-Ion ConcentrationCattleThermodynamicsChromatography, High Pressure LiquidAmino Acid MotifsRecombinant Fusion ProteinsCysteineElectrophoresis, Polyacrylamide GelMolecular WeightEndopeptidasesCatalytic DomainMolecular Structurebeta 2-MicroglobulinMembrane ProteinsDNAHydrophobic and Hydrophilic InteractionsCell MembranePeptide HydrolasesStatic ElectricityProtein Structure, QuaternaryTemperatureMolecular ConformationDipeptidesSerine EndopeptidasesRibosomesSignal TransductionMacromolecular SubstancesLigandsSolutionsNucleic Acid ConformationTransfectionIsomerismMass SpectrometryConserved SequenceIntegrin alpha5beta1Protein SplicingMutagenesisPuromycinCarrier ProteinsEpitopesProtein SubunitsIntegrin alpha4beta1Cells, CulturedDNA PrimersReceptors, Adrenergic, alphaAlanine DehydrogenaseIntegrin alpha2beta1Integrin beta3Escherichia coli Proteins