4IM8

low resolution crystal structure of mouse RAGE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.503 Å
  • R-Value Free: 0.336 
  • R-Value Work: 0.258 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Stable RAGE-Heparan Sulfate Complexes Are Essential for Signal Transduction.

Xu, D.Young, J.H.Krahn, J.M.Song, D.Corbett, K.D.Chazin, W.J.Pedersen, L.C.Esko, J.D.

(2013) Acs Chem.Biol. 8: 1611-1620

  • DOI: 10.1021/cb4001553

  • PubMed Abstract: 
  • RAGE (Receptor for Advanced Glycation End-Products) has emerged as a major receptor that mediates vascular inflammation. Signaling through RAGE by damage-associated molecular pattern molecules often leads to uncontrolled inflammation that exacerbates ...

    RAGE (Receptor for Advanced Glycation End-Products) has emerged as a major receptor that mediates vascular inflammation. Signaling through RAGE by damage-associated molecular pattern molecules often leads to uncontrolled inflammation that exacerbates the impact of the underlying disease. Oligomerization of RAGE is believed to play an essential role in signal transduction, but the molecular mechanism of oligomerization remains elusive. Here we report that RAGE activation of Erk1/2 phosphorylation on endothelial cells in response to a number of ligands depends on a mechanism that involves heparan sulfate-induced hexamerization of the RAGE extracellular domain. Structural studies of the extracellular V-C1 domain-dodecasaccharide complex by X-ray diffraction and small-angle X-ray scattering revealed that the hexamer consists of a trimer of dimers, with a stoichiometry of 2:1 RAGE:dodecasaccharide. Mutagenesis studies mapped the heparan sulfate binding site and the interfacial surface between the monomers and demonstrated that electrostatic interactions with heparan sulfate and intermonomer hydrophobic interactions work in concert to stabilize the dimer. The importance of oligomerization was demonstrated by inhibition of signaling with a new epitope-defined monoclonal antibody that specifically targets oligomerization. These findings indicate that RAGE-heparan sulfate oligomeric complexes are essential for signaling and that interfering with RAGE oligomerization might be of therapeutic value.


    Organizational Affiliation

    Department of Cellular and Molecular Medicine, Glycobiology Research and Training Center, University of California, San Diego , La Jolla, California 92093, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Advanced glycation end-products receptor
A
209Mus musculusMutation(s): 0 
Gene Names: Ager (Rage)
Find proteins for Q62151 (Mus musculus)
Go to UniProtKB:  Q62151
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.503 Å
  • R-Value Free: 0.336 
  • R-Value Work: 0.258 
  • Space Group: P 41 3 2
Unit Cell:
Length (Å)Angle (°)
a = 115.810α = 90.00
b = 115.810β = 90.00
c = 115.810γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
PHASERphasing
PHENIXmodel building
SERGUIdata collection
HKL-2000data scaling
PHENIXrefinement
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-08-14
    Type: Initial release
  • Version 1.1: 2013-11-20
    Type: Database references
  • Version 1.2: 2014-02-26
    Type: Database references