It contains these six carbon atoms. Now, like all protein kinases, hexokinase requires a diveant metal atom to actually function effectively. And that's because the divalent metal atom such as magnesium two plus or magnesium two plus, interacts with the ATP molecules. So when the diveant ion interacts with that ATP molecule, it changes the confirmation of that ATP molecules and makes it perfect to undergo this reaction in the active side of the hexokinase. So this is hexokinase before the binding of the glucose. This is our glucose, and this is hexokinase after that glucose has balanced the active side.