The binding ability of NVP-CGM097 to MDM2 varies among different species. The selectivity of it for p53:MDM2 interaction is 1176-fold for p53:MDM4 interaction, 3000-fold for Ras:Raf interaction, and 1176-fold for Bcl-2:Bak, Bcl-2:Bad, Mcl- The interaction of 1:Bak, Mcl-1:NOXA, XIAP:BIR3, c-IAP:BIR3 is inactive, therefore, it is highly selective for p53:MDM2. It can significantly promote the entry of wild-type p53 into the nucleus with IC50 of 0.224 μM, indicating that it can inhibit the p53:MDM2 interaction in living cells. It promotes p53 as nucleus, resulting in cellular p53-dependent growth inhibition.
