And actually, as we'll discuss in much more detail in a future lecture, this essentially is the step, the formation of the alpha ketoglutter rate is the step that actually determines the rate at which the citric acid cycle actually takes place. So this is a very important step. And if we sum up these two steps, these two reactions of step three, this is the net reaction that we're going to get. Notice that the oxylosuxanate molecules don't appear any of the sides because they cancel out. So if we sum up this reaction with this reaction, this cancels out, and so does this, as well as the H plus here and H plus here. So this is the net reaction that we get on the reactant side, the isocytrate that we produce in step two and the NAD plus that acts as the carrier and picks up those two electrons that we abstract from the isocytrate, we form the NADH.