carbamoyl phosphate + L-ornithine = L-citrulline + phosphate + H(+)
carbamoyl phosphate + l-ornithine = l-citrulline + phosphate + h(+)
carbamoyl phosphate + L-ornithine = L-citrulline + phosphate + H(+)
carbamoyl phosphate + l-ornithine = l-citrulline + phosphate + h(+)