DipeptidesCarnosineDipeptidasesAmino Acid SequenceMolecular Sequence DataNod2 Signaling Adaptor ProteinGlycylglycineBase SequenceDiketopiperazinesStructure-Activity RelationshipOligopeptidesSymportersAmino AcidsAnserineKineticsPeptidesGlycopeptidesSubstrate SpecificityGlycineCloning, MolecularBiological TransportHydrolysisBinding SitesAlanineHydrogen-Ion ConcentrationCathepsin CEscherichia coliCefadroxilDipeptidyl-Peptidases and Tripeptidyl-PeptidasesCephalexinProtein ConformationSequence Homology, Amino AcidLeucineMutationRecombinant Fusion ProteinsCarrier ProteinsPeptide SynthasesModels, MolecularAdjuvants, ImmunologicProlineCell LineAminopeptidasesProtein Structure, TertiaryRecombinant ProteinsBacterial ProteinsProtein BindingIntestinal AbsorptionEndopeptidasesMutagenesis, Site-DirectedStereoisomerismPeptidoglycanPeptides, CyclicPeptide FragmentsRabbitsIntestine, SmallSequence AlignmentDipeptidyl Peptidase 4Molecular StructureReceptor-Interacting Protein Serine-Threonine Kinase 2IsomerismChromatography, High Pressure LiquidProtein Processing, Post-TranslationalViral ProteinsPlasmidsCord FactorsJejunumCarboxypeptidasesPeptide HydrolasesArginineMembrane Transport ProteinsSequence DeletionModels, ChemicalHistidineMolecular WeightPhenylalanineHartnup DiseaseCells, CulturedMagnetic Resonance SpectroscopyLeucyl Aminopeptidase