So let's suppose this is the target protein that we actually want to break down into its constituent amino acids. And let's suppose this is the residue of the lysine amino acid that we're about to add that ubiquitous molecule to. So ultimately, this carbon here forms a bond with this nitrogen and we form this final product molecule. At the same time, E Two and enzyme E Three basically depart and we form this final product. Now, this is not actually the final step of this reaction. In order to actually target that particular protein for degradation, we have to actually add many more Ubiquitant molecules.