Now, once we form this, by replacing this, the reaction still can't go this way, but luckily, our body has a way to actually eliminate Arginosuxanate. And so ultimately our body will get rid of that extra ammonium by combining the ammonium into this molecule and then continually forming citrulline. And then the second amino group will come from aspartate. And ultimately our body, instead of ridding itself of ammonium via urea, it will rid itself of ammonium by getting rid of the our genosuxinate. Now let's explore anodeficiency and let's focus on step number one and step number two. So let's suppose if we have a problem either in carbon mole phosphate synthetase or ornathine transcarbolus, what would happen now?