Sesp_00994 K00651 metA R01777Succinyl-CoA + L-Homoserine <=> CoA + O-Succinyl-L-homoserine
succinyl-CoA:L-homoserine O-succinyltransferase Sesp_00995 K01740 metY R01287O-Acetyl-L-homoserine + Hydrogen sulfide <=> L-Homocysteine + Acetate
O-acetyl-L-homoserine:hydrogen sulfide S-(3-amino-3-carboxypropyl)transferase; O-acetyl-L-homoserine acetate-lyase (adding hydrogen sulfide) Sesp_00995 K01740 metY R04859O-Acetyl-L-serine + Thiosulfate + Thioredoxin + H+ <=> L-Cysteine + Sulfite + Thioredoxin disulfide + Acetate
O3-acetyl-L-serine:thiosulfate 2-amino-2-carboxyethyltransferase (reducing, L-cysteine-forming); O3-acetyl-L-serine acetate-lyase (thiosulfate-reducing, L-cysteine-forming)