So regardless of whether or not we have that proton electrochemical gradient, dehexemur can bind the ATP and orthophosphates and can actually convert them into ATP. But for the ATP synthase to actually be able to release the synthesized ATP molecule there has to be a proton electrochemical gradient that must exist between the two sides of the inner membrane of the mitochondria. Because only when the F Naught structure actually rotates when the C ring rotates will the gamma structure rotate and only then will that structure be able to actually release the ATP molecule. And we'll talk about that in much more detail in the next lecture. So let's take a look at the following structure. So this is our alpha three, beta three hexamarin.