But as soon as we inactivate it now there's nothing that actually transforms the glycogen synthase A into the glycogen synthase B. But we still need that molecule, the protein phosphatase One, to stimulate the conversion of this inactive glycogen synthase into the active form for us to actually form the glycogen molecules. And so this is what happens here. We have the phosphorylase A in the r state that is bound to this protein phosphatase One. And because of that association, this molecule is not active. Now, phosphorylase A in the art state acts as a glucose sensor.