Peptide Biosynthesis, Nucleic Acid-IndependentPeptide BiosynthesisPeptide SynthasesPeptidesPeptide FragmentsAmino Acid SequencePeptide Nucleic AcidsMolecular Sequence DataPeptide LibraryOligopeptidesAntimicrobial Cationic PeptidesPeptides, CyclicBase SequencePeptide MappingEpitopesKineticsBinding SitesProtein BindingModels, MolecularProtein ConformationSubstrate SpecificityEscherichia coliChromatography, High Pressure LiquidNucleic Acid ConformationSequence Homology, Amino AcidCell LineDNACloning, MolecularRecombinant ProteinsStructure-Activity RelationshipProtein Structure, SecondaryNucleic Acid ProbesNatriuretic Peptide, BrainBacterial ProteinsMutationMass SpectrometryNucleic Acid HybridizationAmino AcidsCell-Penetrating PeptidesCattleProtein Structure, TertiaryProtein PrecursorsNucleic Acid Amplification TechniquesRNAMolecular WeightVasoactive Intestinal PeptideBinding, CompetitiveCells, CulturedElectrophoresis, Polyacrylamide GelMagnetic Resonance Spectroscopy