PKA can then begin adding the phosphoryl group onto different types of enzymes using those ATP molecules. And PKA is involved for example in synthesizing glucose so that we can use that glucose as an energy source. Now, one example of a protein phosphatase enzyme is pte N which stands for phosphatase and tense and homolog. So it basically removes the phosphoro group via a process of hydrolysis off of a specific type of amino acid on our protein. And this specific type of protein phosphatase plays a role in regulating the growth of our cells. So it basically plays an important role in controlling cancer.