SulfurAmino AcidsSulfur CompoundsSequence Homology, Amino AcidAmino Acids, SulfurAmino Acid SequenceSulfur DioxideSulfur IsotopesAmino Acid SubstitutionCloning, MolecularAmino Acids, EssentialAmino Acid Transport SystemsMustard GasSequence AlignmentMolecular Sequence DataBase SequenceSulfidesEscherichia coliAmino Acid MotifsThiosulfatesMutationBinding SitesSulfur OxidesMutagenesis, Site-DirectedKineticsModels, MolecularDNA, ComplementarySequence Homology, Nucleic AcidAmino Acids, AromaticProtein ConformationCysteineBacterial ProteinsMethionineRecombinant ProteinsPeptide FragmentsAmino Acids, Branched-ChainPhylogenyLeucineStructure-Activity RelationshipSubstrate SpecificitySequence Analysis, DNASulfatesProtein Structure, TertiaryProtein BindingMolecular WeightDNAPeptidesGenes, BacterialRestriction MappingChlorobiNitrogenOxidoreductases Acting on Sulfur Group DonorsOxidation-ReductionAlanineCell LineProteinsRecombinant Fusion ProteinsElectrophoresis, Polyacrylamide GelRNA, MessengerSpecies SpecificityPlasmidsProtein Structure, SecondaryConserved SequenceChromatography, High Pressure LiquidSulfur HexafluorideAmino Acid Transport Systems, BasicIsoleucineLysineDNA PrimersCarrier ProteinsChromatiaceaeSulfurtransferasesAmino Acids, BasicCattleChemical Warfare AgentsCystineDNA, BacterialGlycineBiological TransportCodonSaccharomyces cerevisiaeOpen Reading FramesTrypsinCyanogen BromideGlutamineSulfur AcidsGenesProtein BiosynthesisAmino Acids, DiaminoPolymerase Chain ReactionArginineSequence AnalysisGene LibraryTranscription, GeneticValineExcitatory Amino AcidsMutagenesisAspartic AcidPhenylalanineHydrogen Sulfide