3JZK image
Entry Detail
PDB ID:
3JZK
Keywords:
Title:
crystal structure of MDM2 with chromenotriazolopyrimidine 1
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2009-09-23
Release Date:
2009-11-17
Method Details:
Experimental Method:
Resolution:
2.10 Å
R-Value Free:
0.32
R-Value Work:
0.30
Space Group:
P 41 21 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:E3 ubiquitin-protein ligase Mdm2
Chain IDs:A
Chain Length:96
Number of Molecules:1
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
Discovery and optimization of chromenotriazolopyrimidines as potent inhibitors of the mouse double minute 2-tumor protein 53 protein-protein interaction.
J.Med.Chem. 52 7044 7053 (2009)
PMID: 19856920 DOI: 10.1021/jm900681h

Abstact

Tumor protein 53 (p53) is a critical regulator of cell cycle and apoptosis that is frequently disabled in human tumors. In many tumor types, p53 is deleted or mutated, but in others p53 is inactivated by overexpression or amplification of its negative regulator mouse double minute 2 (MDM2). A high-throughput screening effort identified 6,7-bis(4-bromophenyl)-7,12-dihydro-6H-chromeno[4,3-d][1,2,4]triazolo[1,5-a]pyrimidine as a potent inhibitor of the MDM2-p53 protein-protein interaction. This screening hit was found to be chemically unstable and difficult to handle due to poor DMSO solubility. Co-crystallization with the target protein helped to direct further optimization and provided a tractable lead series of novel MDM2-p53 inhibitors. In cellular assays, these compounds were shown to upregulate p53 protein levels and p53 signaling and to cause p53-dependent inhibition of proliferation and apoptosis.

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Primary Citation of related structures