Now, the final step in this process is these two ATP molecules are actually hydrolyzed by using two water molecules. So we have two water molecules, not one. We basically use two water molecules to hydrolyze each one of these ATP molecules and that produces and releases two ATP molecules and two phosphate molecules as shown here. And the important part here is the hydrolysis of these ATP molecules and the removal of these ATP molecules basically resets the entire confirmation, the entire structure of that protein so that now we go back to that closed state and this cycle can basically repeat itself. So we see that ptype ATPases and ABC transporters both carry out the same exact function. They transport these molecules against the electrochemical gradient and they basically use ATP energy molecules.