And this is the bond that will be broken in the steps to come as we'll discuss in the next several electrodes. Now, this succinct coenzyme A basically is the product of step four. And the enzyme that catalyzes step four is known as alpha ketoglu rate because this is a substrate molecule that binds into the enzyme dehydrogenase complex. And in fact, this complex is very similar to the complex that catalyze step one of the citric acid cycle. How is it similar? Well, this complex, just like that complex, also consists of three different types of enzymes, and it also uses many different types of Cofactors.