| UPA00142 | glutathione biosynthesis~Biosynthesis of glutathione (GSH; L-{gamma}-glutamyl-L-cysteinylglycine), a predominant low molecular weight peptide thiol present in many Gram- negative bacteria and in virtually all eukaryotes, except those that lack mitochondria. | None - {{∅}} | None - {{∅},{t}} | Unexplained |  | 
                
                    | UER00209 | glutathione from L-cysteine and L-glutamate: step 1/2~1 ATP + 1 L-cysteine + 1 L-glutamate => 1 ADP + 1 L-gamma-glutamyl-L-cysteine + 1 phosphate. | None - {{∅}} | None - {{∅}} | Unexplained |  | 
                
                    | ULS00089 | glutathione from L-cysteine and L-glutamate | None - {{∅}} | None - {{∅},{t}} | Unexplained |  | 
                
                    | UER00210 | glutathione from L-cysteine and L-glutamate: step 2/2~1 ATP + 1 L-gamma-glutamyl-L-cysteine + 1 glycine => 1 ADP + 1 glutathione + 1 phosphate. | None - {{∅}} | True - {{t}} | Unconfirmed presence |  |