carbamoyl phosphate + L-lysine => L-homocitrulline + phosphate + H(+)
carbamoyl phosphate + l-lysine => l-homocitrulline + phosphate + h(+)
carbamoyl phosphate + L-lysine => L-homocitrulline + phosphate + H(+)
carbamoyl phosphate + l-lysine => l-homocitrulline + phosphate + h(+)