O-acetyl-L-homoserine + hydrogen sulfide => L-homocysteine + acetate
o-acetyl-l-homoserine + hydrogen sulfide => l-homocysteine + acetate
O-acetyl-L-homoserine + hydrogen sulfide => L-homocysteine + acetate
o-acetyl-l-homoserine + hydrogen sulfide => l-homocysteine + acetate