4HBM

Ordering of the N Terminus of Human MDM2 by Small Molecule Inhibitors

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Ordering of the N-terminus of human MDM2 by small molecule inhibitors.

Michelsen, K., Jordan, J.B., Lewis, J., Long, A.M., Yang, E., Rew, Y., Zhou, J., Yakowec, P., Schnier, P.D., Huang, X., Poppe, L.

(2012) J.Am.Chem.Soc. 134: 17059-17067

  • DOI: 10.1021/ja305839b
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • Restoration of p53 function through the disruption of the MDM2-p53 protein complex is a promising strategy for the treatment of various types of cancer. Here, we present kinetic, thermodynamic, and structural rationale for the remarkable potency of a ...

    Restoration of p53 function through the disruption of the MDM2-p53 protein complex is a promising strategy for the treatment of various types of cancer. Here, we present kinetic, thermodynamic, and structural rationale for the remarkable potency of a new class of MDM2 inhibitors, the piperidinones. While these compounds bind to the same site as previously reported for small molecule inhibitors, such as the Nutlins, data presented here demonstrate that the piperidinones also engage the N-terminal region (residues 10-16) of human MDM2, in particular, Val14 and Thr16. This portion of MDM2 is unstructured in both the apo form of the protein and in MDM2 complexes with p53 or Nutlin, but adopts a novel β-strand structure when complexed with the piperidinones. The ordering of the N-terminus upon binding of the piperidinones extends the current model of MDM2-p53 interaction and provides a new route to rational design of superior inhibitors.

    Organizational Affiliation: 

    Molecular Structure & Characterization, Amgen, Inc., Thousand Oaks, California 91320, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
E3 ubiquitin-protein ligase Mdm2
A, B, C, D, E, F, G, H
120Homo sapiensMutation(s): 0 
Gene Names: MDM2
EC: 2.3.2.27
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
0Y7
Query on 0Y7
Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H
{(3R,5R,6S)-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-[(2S)-1-hydroxybutan-2-yl]-2-oxopiperidin-3-yl}acetic acid
C23 H25 Cl2 N O4
MUYVUHCWOCMQPD-CJXUKZFBSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
0Y7Kd: 8.2 nM BINDINGMOAD
0Y7Kd: 12 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.220 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 185.350α = 90.00
b = 73.950β = 121.60
c = 123.090γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNSrefinement
HKL-2000data collection
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

  • Deposited Date: 2012-09-28 
  • Released Date: 2012-10-17 
  • Deposition Author(s): Huang, X.

Revision History 

  • Version 1.0: 2012-10-17
    Type: Initial release
  • Version 1.1: 2013-01-02
    Type: Database references