OligopeptidesDipeptidesMembrane Transport ProteinsSymportersCephalexinMolecular Sequence DataAmino Acid SequenceGlycylglycineBacterial ProteinsCarrier ProteinsKineticsCefadroxilEscherichia coliBiological TransportPeptidesBase SequenceProtein BiosynthesisStereoisomerismSubstrate SpecificityLactococcus lactisRNA, MessengerMutationLipoproteinsStreptococcus thermophilusAmino AcidsPeptoidsCloning, MolecularLeucineAdministration, MucosalCells, CulturedGene Expression Regulation, BacterialProtein Synthesis InhibitorsStructure-Activity RelationshipCell LineCarnosineDNAMicrocystisPlasmidsPeptide Termination FactorsOperonHydrogen-Ion ConcentrationMolecular StructureEnkephalin, Leucine-2-AlanineTranscription, GeneticProtein BindingMolecular WeightXenorhabdusApiaceaeNetropsinMycoplasma hominisCycloheximideBiological Transport, ActiveGenes, BacterialCaco-2 CellsRecombinant ProteinsGenetic Complementation TestRepetitive Sequences, Amino AcidRabbitsDNA ReplicationHydrolysisCyclizationElectrophoresis, Polyacrylamide GelSaccharomyces cerevisiaeViral ProteinsBinding SitesIntestinal AbsorptionCulture MediaSequence Homology, Amino AcidTime FactorsBacillus subtilisTritiumProtein ConformationSequence AlignmentEndopeptidasesMicrovilliFungal ProteinsPeptide FragmentsPheromonesAnti-Bacterial AgentsModels, MolecularChromatography, High Pressure LiquidDose-Response Relationship, DrugGene DeletionCarbon IsotopesBinding, CompetitiveTemperatureRNAValineEscherichia coli ProteinsSelectinsMembrane ProteinsGene Expression RegulationLiverDactinomycinRecombinant Fusion ProteinsCell-Free SystemIntestinesATP-Binding Cassette TransportersBlotting, WesternChemistry Techniques, Synthetic