Well, because normally, every time we for the Ammonium product, that Ammonium is used up in the urea cycle. And so if we continually use up this final product, that will drive this reaction forward. So if we summarize these two reactions, the transamination and the oxidative deamination, we basically form this diagram here. So we begin with the target amino acid, and we have the alpha key to glutrate. As we saw in this particular case, this is catalyzed by aminotransferase. And so we ultimately form a glutamate and the alpha key to acid, in this case, pyruvate, in this case, oxalo acetate.