preferred_name: cysteine synthase activity, acting on O-succinyl-L-serine
preferred_name_lc: cysteine synthase activity, acting on o-succinyl-l-serine
label: O-succinyl-L-serine + hydrogen sulfide = L-cysteine + succinate
label_lc: o-succinyl-l-serine + hydrogen sulfide = l-cysteine + succinate