And so now we have this slight interaction between the nitrogen and the hydrogen and we still have the interaction between the oxygen and this hydrogen. So this oscillates the therine and forms an amide molecule that deprotonates the histidine nitrogen shown here. And once we form this amide product, in the next step, the amide basically moves away. And when the amide moves away, we basically make room in the active side for a water molecule to actually enter because remember, it's the water molecule that will ultimately also act as a nuclear phile to basically help hydrolyze that peptide bond. So in the next step, once the amide product departs, we have the water molecule that comes into place. And so this water molecule, it basically positions itself into the same position that we had this amide in this step.