Receptors, Invertebrate PeptideInvertebratesPeptidesPeptide FragmentsPeptide LibraryAntimicrobial Cationic PeptidesAmino Acid SequencePeptides, CyclicMolecular Sequence DataVertebratesOligopeptidesPeptide MappingMolluscaSequence Homology, Amino AcidNatriuretic Peptide, BrainBase SequenceEchinodermataProtein BindingCrustaceaUrochordataPhylogenyAquatic OrganismsVasoactive Intestinal PeptideChordata, NonvertebrateCalcitonin Gene-Related PeptideCell-Penetrating PeptidesPolychaetaSequence AlignmentModels, MolecularBivalviaPeptide BiosynthesisProtein ConformationAnnelidaCloning, MolecularBinding SitesPeptide YYInvertebrate HormonesCnidariaPeptide Nucleic AcidsArthropodsProtein Structure, SecondarySpecies SpecificityNatriuretic Peptide, C-Type