3LBJ

Structure of human MDMX protein in complex with a small molecule inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.174 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structures of low molecular weight inhibitors bound to MDMX and MDM2 reveal new approaches for p53-MDMX/MDM2 antagonist drug discovery

Popowicz, G.M.Czarna, A.Wolf, S.Wang, K.Wang, W.Domling, A.Holak, T.A.

(2010) Cell Cycle 9: 1104-1111

  • DOI: 10.4161/cc.9.6.10956
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Intensive anticancer drug discovery efforts have been made to develop small molecule inhibitors of the p53-MDM2 and p53-MDMX interactions. We present here the structures of the most potent inhibitors bound to MDM2 and MDMX that are based on the new i ...

    Intensive anticancer drug discovery efforts have been made to develop small molecule inhibitors of the p53-MDM2 and p53-MDMX interactions. We present here the structures of the most potent inhibitors bound to MDM2 and MDMX that are based on the new imidazo-indole scaffold. In addition, the structure of the recently reported spiro-oxindole inhibitor bound to MDM2 is described. The structures indicate how the substituents of a small molecule that bind to the three subpockets of the MDM2/X-p53 interaction should be optimized for effective binding to MDM2 and/or MDMX. While the spiro-oxindole inhibitor triggers significant ligand-induced changes in MDM2, the imidazo-indoles share similar binding modes for MDMX and MDM2, but cause only minimal induced-fit changes in the structures of both proteins. Our study includes the first structure of the complex between MDMX and a small molecule and should aid in developing efficient scaffolds for binding to MDMX and/or MDM2.


    Organizational Affiliation

    Max-Planck-Institute of Biochemistry, Martinsried, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein Mdm4
E
90Homo sapiensMutation(s): 0 
Gene Names: MDM4 (MDMX)
Find proteins for O15151 (Homo sapiens)
Go to Gene View: MDM4
Go to UniProtKB:  O15151
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
WW8
Query on WW8

Download SDF File 
Download CCD File 
E
N-[(3S)-1-({6-chloro-3-[1-(4-chlorobenzyl)-4-phenyl-1H-imidazol-5-yl]-1H-indol-2-yl}carbonyl)pyrrolidin-3-yl]-N,N',N'-trimethylpropane-1,3-diamine
C35 H38 Cl2 N6 O
LWWQYOWAPGRPRH-NDEPHWFRSA-N
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
E
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
WW8Ki: 11000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.174 
  • Space Group: I 21 3
Unit Cell:
Length (Å)Angle (°)
a = 80.970α = 90.00
b = 80.970β = 90.00
c = 80.970γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
MAR345data collection
REFMACrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-03-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-01
    Type: Refinement description
  • Version 1.3: 2018-10-17
    Type: Data collection, Database references