1RV1

CRYSTAL STRUCTURE OF HUMAN MDM2 WITH AN IMIDAZOLINE INHIBITOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.266 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

In vivo activation of the p53 pathway by small-molecule antagonists of MDM2.

Vassilev, L.T.Vu, B.T.Graves, B.Carvajal, D.Podlaski, F.Filipovic, Z.Kong, N.Kammlott, U.Lukacs, C.Klein, C.Fotouhi, N.Liu, E.A.

(2004) Science 303: 844-848

  • DOI: 10.1126/science.1092472
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • MDM2 binds the p53 tumor suppressor protein with high affinity and negatively modulates its transcriptional activity and stability. Overexpression of MDM2, found in many human tumors, effectively impairs p53 function. Inhibition of MDM2-p53 interaction can stabilize p53 and may offer a novel strategy for cancer therapy ...

    MDM2 binds the p53 tumor suppressor protein with high affinity and negatively modulates its transcriptional activity and stability. Overexpression of MDM2, found in many human tumors, effectively impairs p53 function. Inhibition of MDM2-p53 interaction can stabilize p53 and may offer a novel strategy for cancer therapy. Here, we identify potent and selective small-molecule antagonists of MDM2 and confirm their mode of action through the crystal structures of complexes. These compounds bind MDM2 in the p53-binding pocket and activate the p53 pathway in cancer cells, leading to cell cycle arrest, apoptosis, and growth inhibition of human tumor xenografts in nude mice.


    Organizational Affiliation

    Department of Discovery Oncology, Roche Research Center, Hoffmann-La Roche, Inc., Nutley, NJ 07110, USA. lyubomir.vassilev@roche.com



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin-protein ligase E3 Mdm2A, B, C85Homo sapiensMutation(s): 1 
Gene Names: MDM2
EC: 6.3.2 (PDB Primary Data), 2.3.2.27 (UniProt)
Find proteins for Q00987 (Homo sapiens)
Explore Q00987 
Go to UniProtKB:  Q00987
NIH Common Fund Data Resources
PHAROS  Q00987
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IMZ
Query on IMZ

Download CCD File 
A, B, C
CIS-[4,5-BIS-(4-BROMOPHENYL)-2-(2-ETHOXY-4-METHOXYPHENYL)-4,5-DIHYDROIMIDAZOL-1-YL]-[4-(2-HYDROXYETHYL)PIPERAZIN-1-YL]METHANONE
C31 H34 Br2 N4 O4
PVRYEWOXWGDQHA-URLMMPGGSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
IMZIC50:  140   nM  Binding MOAD
IMZIC50:  140   nM  BindingDB
IMZIC50 :  140   nM  PDBBind
IMZIC50:  100   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.266 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 122.264α = 90
b = 39.727β = 114.29
c = 79.362γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
MOLREPphasing
CNXrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-01-20
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance