And the two HS go onto this nitrogen here. So we formed this glutamate semiaaldehyde. Now, the glutamate semi aldehyde is actually important, as we'll see in just a moment when we'll discuss Arginine, because Arginine also goes through this intermediate glutamate semi aldehyde. Now, in the final step, we have an oxidation reduction reaction in which we essentially remove this H, attach an oxygen to form our glutamate. So once we form the glutamate. Again, the glutamate is then transformed into alpha keysagutrate.