4OAS image
Deposition Date 2014-01-06
Release Date 2014-02-19
Last Version Date 2024-02-28
Entry Detail
PDB ID:
4OAS
Title:
co-crystal structure of MDM2 (17-111) in complex with compound 25
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Method Details:
Experimental Method:
Resolution:
1.70 Å
R-Value Free:
0.23
R-Value Work:
0.21
Space Group:
C 2 2 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:E3 ubiquitin-protein ligase Mdm2
Gene (Uniprot):MDM2
Chain IDs:A, B (auth: C), C (auth: E)
Chain Length:96
Number of Molecules:3
Biological Source:Homo sapiens
Primary Citation

Abstact

We recently reported the discovery of AM-8553 (1), a potent and selective piperidinone inhibitor of the MDM2-p53 interaction. Continued research investigation of the N-alkyl substituent of this series, focused in particular on a previously underutilized interaction in a shallow cleft on the MDM2 surface, led to the discovery of a one-carbon tethered sulfone which gave rise to substantial improvements in biochemical and cellular potency. Further investigation produced AMG 232 (2), which is currently being evaluated in human clinical trials for the treatment of cancer. Compound 2 is an extremely potent MDM2 inhibitor (SPR KD = 0.045 nM, SJSA-1 EdU IC50 = 9.1 nM), with remarkable pharmacokinetic properties and in vivo antitumor activity in the SJSA-1 osteosarcoma xenograft model (ED50 = 9.1 mg/kg).

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Primary Citation of related structures