MethioninePeptidesMethionine Sulfoxide ReductasesPeptide FragmentsMethionine AdenosyltransferasePeptide LibraryAntimicrobial Cationic Peptides5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseAmino Acid SequencePeptides, CyclicS-AdenosylmethioninePeptide MappingMethionyl AminopeptidasesMolecular Sequence DataAmino AcidsOligopeptidesHomocysteineNatriuretic Peptide, BrainKineticsBase SequenceProtein BindingAmino Acids, SulfurEscherichia coliCystathionineModels, MolecularPeptide BiosynthesisVasoactive Intestinal PeptideEnkephalin, MethionineBinding SitesProtein ConformationAminopeptidasesChromatography, High Pressure LiquidCalcitonin Gene-Related PeptideCysteineCell-Penetrating PeptidesMethionine SulfoximineCystineMass SpectrometryPeptide YYProtein Structure, SecondaryStructure-Activity RelationshipMolecular WeightCloning, MolecularPeptide Nucleic AcidsSequence Homology, Amino AcidPeptide PHINatriuretic Peptide, C-TypeRecombinant ProteinsElectrophoresis, Polyacrylamide GelCell LineS-AdenosylhomocysteineProtein PrecursorsTrypsinNatriuretic PeptidesPeptide SynthasesMutationPeptide HydrolasesSubstrate SpecificityEthionineVitamin B 12Gastrin-Releasing PeptideEpitopesReceptors, Formyl PeptideMethionine-tRNA LigaseProtein Structure, TertiaryReceptors, PeptideOxidation-ReductionAtrial Natriuretic FactorBacterial ProteinsCattleProteinsCells, CulturedSulfur RadioisotopesCyanogen BromideMethylationSulfurOxidoreductasesProtein Processing, Post-TranslationalMagnetic Resonance SpectroscopyProtein BiosynthesisLiverBetaine-Homocysteine S-MethyltransferaseSequence AlignmentSpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationRNA, MessengerLysineNorleucineCystathionine beta-SynthaseOpioid PeptidesThionucleosidesIntracellular Signaling Peptides and ProteinsPeptide HormonesFolic AcidGlycine N-MethyltransferaseLeucineDose-Response Relationship, DrugIsoleucineGlycineSelenomethionineHydrogen-Ion Concentration