Instead, the carbon is oxidized, and we have this carbon oxygen double bond between this carbon and this oxygen. So ultimately, in this step, we basically want to remove this alpha amino group along with the h ion. So we ultimately want to remove an ammonium. So we want to undergo a deamination step in which we remove this ammonium, and we want to oxidize this carbon. And that's exactly what happens in this step. So this step is catalyzed by glutamate dehydrogenase.