So if we fast, the same exact thing actually happens. And when we have a low blood glucose level, that stimulates a different type of hormone known as glucagon. And glucagon also creates some type of signal transduction pathway. More specifically, it creates a cyclic Amp signal transduction pathway. And this secondary messenger molecule goes on to activate PKA protein kinase A. And as we know from this particular discussion, protein kinase A transforms this state into this state.