Amino Acids, Peptides, and ProteinsAmino AcidsAmino Acid SequenceAmino Acid SubstitutionMolecular Sequence DataAnhydridesSequence Homology, Amino AcidMutationProteinsBase SequenceMutagenesis, Site-DirectedCloning, MolecularPoint MutationSequence AlignmentStructure-Activity RelationshipModels, MolecularBinding SitesEscherichia coliProtein ConformationProtein Structure, TertiaryMutation, MissenseSequence Analysis, DNAKineticsRecombinant ProteinsPhylogenyCell LineDNA Mutational AnalysisEvolution, MolecularProtein BindingMutagenesisGenetic VariationBacterial ProteinsCodonAmino Acid Motifs