DI-591 is an effective, high-affinity and cell-permeability inhibitor for DCN1-UBC12interaction. DI-591 binds to DCN1 and DCN2 with Ki values of 12 and nM and 10.4 nM, respectively, and has no obvious binding to DCN3, DCN4 and DCN5 proteins.
DI-404 is a high-Affinity Peptidomimetic the DCN1-UBC12 Protein-Protein Interaction inhibitor (Kd= 6.9 nM). DI-404 effectively and selectively inhibits the neddylation of cullin 3 over other cullin members.