Ubiquitination-IN-2

Ubiquitination-IN-2 is a potent inhibitor of E1-E2 protein−protein interactions (PPI), exhibiting inhibitory activity with a dissociation constant (Kd) of 0.72 μM for the ubiquitin E1 (Uba1) enzyme. By blocking the transfer of ubiquitin from E1 to E2, Ubiquitination-IN-2 serves as a valuable tool in cancer research [1].