CystathionineCystathionine beta-SynthaseCystathionine gamma-LyaseCysteineMethionineCysteine DioxygenaseSulfurHomocysteineSulfur CompoundsHomocystinuriaCarbon-Oxygen LyasesTaurineGlutathioneHydrogen SulfideS-AdenosylmethionineLyasesCysteine SynthaseDioxygenasesSulfatesCarboxy-LyasesAmino Acids, SulfurVitamin B 6 DeficiencyBetaine-Homocysteine S-MethyltransferasePyridoxal PhosphateMethionine AdenosyltransferaseHyperhomocysteinemiaS-AdenosylhomocysteineGlycine N-MethyltransferaseAlkynesCystineCysteine EndopeptidasesMethylationVitamin B 6Cysteine ProteasesMolecular Sequence DataLiverMethionine Sulfoxide ReductasesAmino Acid SequenceKinetics5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseCysteine Proteinase InhibitorsSulfur RadioisotopesFolic AcidHomocystineOxidation-ReductionSulfhydryl CompoundsCloning, MolecularSerineCarbon IsotopesSulfidesHydro-LyasesSerine O-AcetyltransferaseDisulfidesMutationEscherichia coliEnergy MetabolismLipid MetabolismAmino AcidsBase SequenceDietHomoserinePyridoxineMutagenesis, Site-DirectedRecombinant ProteinsModels, MolecularSulfur IsotopesGlycineVitamin B 12Vitamin URats, Sprague-DawleyBinding SitesSequence Homology, Amino AcidBetaineChromatography, High Pressure LiquidProtein Structure, TertiaryProtein ConformationMethionyl AminopeptidasesProtein BindingCathepsinsSubstrate SpecificityCatalysisCarbon-Sulfur Lyases