PeptidesGastrointestinal HormonesCorticotrophsThyrotrophsNeurotensinSecretogranin IIGlucagon-Like PeptidesNeuropeptidesPeptide PHIVasoactive Intestinal PeptideAntimicrobial Cationic PeptidesBombesinCholecystokininSomatostatinEnteroendocrine CellsHepcidinsPeptide FragmentsGastric Inhibitory PolypeptideNeuropeptide YChromogranin AReceptors, SomatostatinGastrinsAmino Acid SequenceAdrenomedullinMolecular Sequence DataProtein PrecursorsPeptide LibraryRNA, MessengerIntestinal MucosaPeptides, CyclicPeptide MappingOligopeptidesCells, CulturedImmunohistochemistryNatriuretic Peptide, BrainCalcitonin Gene-Related PeptideCell-Penetrating PeptidesProtein BindingPeptide BiosynthesisPeptide YYPeptide Nucleic AcidsNatriuretic Peptide, C-TypeNatriuretic PeptidesProtein ConformationModels, MolecularBinding SitesGastrin-Releasing PeptideProtein Structure, SecondaryReceptors, Formyl PeptidePeptide SynthasesPeptide HydrolasesReceptors, PeptideChromatography, High Pressure LiquidAtrial Natriuretic FactorEpitopesKineticsBase SequenceMass SpectrometryStructure-Activity RelationshipTrypsinSequence Homology, Amino AcidCell LineAmino AcidsOpioid PeptidesIntracellular Signaling Peptides and ProteinsPeptide HormonesProtein Structure, TertiaryRecombinant ProteinsCloning, MolecularSubstrate SpecificitySpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationMolecular MimicryGlucagon-Like Peptide 1Escherichia coliAptamers, PeptideProteinsMolecular WeightMagnetic Resonance SpectroscopyCattleReceptors, Vasoactive Intestinal PeptideElectrophoresis, Polyacrylamide GelBinding, CompetitiveReceptors, Atrial Natriuretic FactorAmphibian ProteinsEpitopes, T-LymphocyteSalivary Proteins and PeptidesAmyloid beta-PeptidesRecombinant Fusion ProteinsAntigen PresentationMelittenSequence AlignmentProtein Processing, Post-TranslationalCell MembraneEpitope MappingHydrophobic and Hydrophilic InteractionsDefensinsCyanogen BromideDipeptidesMagaininsT-Lymphocytes, Cytotoxic