O-succinyl-L-homoserine + hydrogen sulfide => L-homocysteine + succinate
o-succinyl-l-homoserine + hydrogen sulfide => l-homocysteine + succinate
O-succinyl-L-homoserine + hydrogen sulfide => L-homocysteine + succinate
o-succinyl-l-homoserine + hydrogen sulfide => l-homocysteine + succinate