MMRi6 is an Mdm2-MdmX RING domain inhibitor that disrupts the RING-RING interaction between Mdm2 and MdmX. This compound effectively inhibits MdmX-stimulated Mdm2 autoubiquitination and Mdm2-MdmX-mediated polyubiquitination of p53 in vitro, while sparing NEDD4-1 autoubiquitination. MMRi6 promotes stabilization and accumulation of p53, leading to PARP cleavage in wild-type p53 Emu-myc lymphoma cells. It demonstrates growth inhibition of wild-type p53 and p53-null Emu-myc lymphoma cells with IC50 values of approximately 0.5 μM and 3 μM, respectively, making it a valuable tool for studying leukemia and lymphoma.
MMRi6 is an Mdm2-MdmX RING domain inhibitor that disrupts the RING-RING interaction between Mdm2 and MdmX. This compound effectively inhibits MdmX-stimulated Mdm2 autoubiquitination and Mdm2-MdmX-mediated polyubiquitination of p53 in vitro, while sparing NEDD4-1 autoubiquitination. MMRi6 promotes stabilization and accumulation of p53, leading to PARP cleavage in wild-type p53 Emu-myc lymphoma cells. It demonstrates growth inhibition of wild-type p53 and p53-null Emu-myc lymphoma cells with IC50 values of approximately 0.5 μM and 3 μM, respectively, making it a valuable tool for studying leukemia and lymphoma.
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