And we also produce the GTP. So step five is the only step of the citric acid cycle that actually generates this high energy purine nucleuside triphosphate molecule, the GTP. Now, the GTP can either be transformed into ATP or it can actually be used by, for instance, a g protein to carry out some type of specific process in the cell, for instance, a signal transduction pathway. Now, the product molecule of step five is succinate. And notice that even though we had all these color coded atoms in these steps here, we don't have the color coded atoms in this step. And that's because now this molecule is symmetric.