3SP9

Structural basis for iloprost as a dual PPARalpha/delta agonist


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for iloprost as a dual peroxisome proliferator-activated receptor alpha/delta agonist.

Jin, L.Lin, S.Rong, H.Zheng, S.Jin, S.Wang, R.Li, Y.

(2011) J.Biol.Chem. 286: 31473-31479

  • DOI: 10.1074/jbc.M111.266023
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Iloprost is a prostacyclin analog that has been used to treat many vascular conditions. Peroxisome proliferator-activated receptors (PPARs) are ligand-regulated transcription factors with various important biological effects such as metabolic and car ...

    Iloprost is a prostacyclin analog that has been used to treat many vascular conditions. Peroxisome proliferator-activated receptors (PPARs) are ligand-regulated transcription factors with various important biological effects such as metabolic and cardiovascular physiology. Here, we report the crystal structures of the PPARα ligand-binding domain and PPARδ ligand-binding domain bound to iloprost, thus providing unambiguous evidence for the direct interaction between iloprost and PPARs and a structural basis for the recognition of PPARα/δ by this prostacyclin analog. In addition to conserved contacts for all PPARα ligands, iloprost also initiates several specific interactions with PPARs using its unique structural groups. Structural and functional studies of receptor-ligand interactions reveal strong functional correlations of the iloprost-PPARα/δ interactions as well as the molecular basis of PPAR subtype selectivity toward iloprost ligand. As such, the structural mechanism may provide a more rational template for designing novel compounds targeting PPARs with more favorable pharmacologic impact based on existing iloprost drugs.


    Organizational Affiliation

    State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Fujian 361005, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Peroxisome proliferator-activated receptor delta
A, B
281Homo sapiensMutation(s): 0 
Gene Names: PPARD (NR1C2, PPARB)
Find proteins for Q03181 (Homo sapiens)
Go to Gene View: PPARD
Go to UniProtKB:  Q03181
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IL2
Query on IL2

Download SDF File 
Download CCD File 
A, B
(5E)-5-[(3aS,4R,5R,6aS)-5-hydroxy-4-[(1E,3S,4R)-3-hydroxy-4-methyloct-1-en-6-yn-1-yl]hexahydropentalen-2(1H)-ylidene]pentanoic acid
C22 H32 O4
HIFJCPQKFCZDDL-GBSCXWAGSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.195 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 49.124α = 90.00
b = 111.905β = 93.15
c = 55.012γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data collection
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2011-07-01 
  • Released Date: 2011-07-20 
  • Deposition Author(s): Rong, H., Li, Y.

Revision History 

  • Version 1.0: 2011-07-20
    Type: Initial release
  • Version 1.1: 2012-06-20
    Type: Database references
  • Version 1.2: 2014-04-16
    Type: Other