1RV1

CRYSTAL STRUCTURE OF HUMAN MDM2 WITH AN IMIDAZOLINE INHIBITOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.256 

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
  • Also Cited By: 4J3E, 4J74, 4J7D, 4J7E

  • 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 interacti ...

    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 Mdm2
A, B, C
85Homo sapiensGene Names: MDM2
EC: 6.3.2.-
Find proteins for Q00987 (Homo sapiens)
Go to Gene View: MDM2
Go to UniProtKB:  Q00987
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IMZ
Query on IMZ

Download SDF File 
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: 100 - 140 nM (98) BINDINGDB
IMZIC50: 140 nM BINDINGMOAD
IMZIC50: 140 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.256 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 122.264α = 90.00
b = 39.727β = 114.29
c = 79.362γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
MOLREPphasing
HKL-2000data collection
CNXrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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