CystathionineCystathionine beta-SynthaseCystathionine gamma-LyaseCysteineCysteine DioxygenaseSulfurHomocystinuriaMethionineHomocysteineCarbon-Oxygen LyasesSulfur CompoundsHydrogen SulfideTaurineGlutathioneLyasesS-AdenosylmethionineCysteine SynthaseDioxygenasesSulfatesCarboxy-LyasesVitamin B 6 DeficiencyPyridoxal PhosphateHyperhomocysteinemiaAmino Acids, SulfurBetaine-Homocysteine S-MethyltransferaseAlkynesS-AdenosylhomocysteineGlycine N-MethyltransferaseVitamin B 6CystineCysteine EndopeptidasesMethylationMolecular Sequence DataCysteine ProteasesHomocystineMethionine AdenosyltransferaseHydro-LyasesLiverSulfidesAmino Acid SequenceKineticsPyridoxineSerine O-AcetyltransferaseHomoserineSerineFolic AcidSulfhydryl CompoundsCysteine Proteinase InhibitorsCloning, MolecularSulfur IsotopesMutationSulfur RadioisotopesOxidation-ReductionCarbon IsotopesVitamin U5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseEscherichia coliBetaineGlycineReflex, AbdominalBase SequenceEnergy MetabolismDietLipid MetabolismDisulfidesHemeRecombinant ProteinsModels, MolecularAmino Acid Metabolism, Inborn ErrorsAmino AcidsRats, Sprague-DawleyVitamin B 12Protein Structure, Tertiary