And what that means is the ATP can go ahead and transfer the enzyme can go ahead and transfer that phosphoryl group from the ATP onto this glucose molecule into producing that ADP. So the movement of the glucose into the active side of hexokinase causes the two domains, these two domains to basically rotate about twelve degrees. So they actually move about ten angstroms and that rotates these sections and closes that glucose molecule inside this active site, creating an induced fist and this seals off the glucose. So removes all the water molecules and positions the fixed carbon right next to that ATP. And that also prevents the ATP from actually being hydrolyzed prematurely by that water molecule. Because if the ATP is hydrolyzed by water before that phosphoryl group is actually transferred onto the glucose, then we form the ADP.