3B3K

Crystal structure of the complex between PPARgamma and the full agonist LT175


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.316 
  • R-Value Work: 0.237 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal Structure of the Peroxisome Proliferator-Activated Receptor gamma (PPARgamma) Ligand Binding Domain Complexed with a Novel Partial Agonist: A New Region of the Hydrophobic Pocket Could Be Exploited for Drug Design

Montanari, R.Saccoccia, F.Scotti, E.Crestani, M.Godio, C.Gilardi, F.Loiodice, F.Fracchiolla, G.Laghezza, A.Tortorella, P.Lavecchia, A.Novellino, E.Mazza, F.Aschi, M.Pochetti, G.

(2008) J.Med.Chem. 51: 7768-7776

  • DOI: 10.1021/jm800733h
  • Primary Citation of Related Structures:  
  • Also Cited By: 6F2L, 4O8F, 4L98, 4L96, 4E4Q, 4E4K, 3HOD, 3HO0

  • PubMed Abstract: 
  • The peroxisome proliferator-activated receptors (PPARs) are ligand-dependent transcription factors regulating glucose and lipid metabolism. The search for new PPAR ligands with reduced adverse effects with respect to the marketed antidiabetic agents ...

    The peroxisome proliferator-activated receptors (PPARs) are ligand-dependent transcription factors regulating glucose and lipid metabolism. The search for new PPAR ligands with reduced adverse effects with respect to the marketed antidiabetic agents thiazolidinediones (TZDs) and the dual-agonists glitazars is highly desired. We report the crystal structure and activity of the two enantiomeric forms of a clofibric acid analogue, respectively complexed with the ligand-binding domain (LBD) of PPARgamma, and provide an explanation on a molecular basis for their different potency and efficacy against PPARgamma. The more potent S-enantiomer is a dual PPARalpha/PPARgamma agonist which presents a partial agonism profile against PPARgamma. Docking of the S-enantiomer in the PPARalpha-LBD has been performed to explain its different subtype pharmacological profile. The hypothesis that partial agonists show differential stabilization of helix 3, when compared to full agonists, is also discussed. Moreover, the structure of the complex with the S-enantiomer reveals a new region of the PPARgamma-LBD never sampled before by other ligands.


    Related Citations: 
    • Structural determinants of ligand binding selectivity between the peroxisome proliferator-activated receptors
      Xu, H.E.,Lambert, M.H.,Montana, V.G.,Plunket, K.D.,Moore, L.B.,Collins, J.L.,Oplinger, J.A.,Kliewer, S.A.,Gampe, R.T.,McKee, D.D.,Moore, J.T.,Willson, T.M.
      (2001) Proc.Natl.Acad.Sci.Usa 98: 13919
    • Asymmetry in the PPARgamma/RXRalpha crystal structure reveals the molecular basis of heterodimerization among nuclear receptors
      Gampe, R.T.,Montana, V.G.,Lambert, M.H.,Miller, A.B.,Bledsoe, R.K.,Milburn, M.V.,Kliewer, S.A.,Willson, T.M.,Xu, H.E.
      (2000) Mol.Cell 5: 545
    • Ligand binding and co-activator assembly of the peroxisome proliferator-activated receptor-gamma
      Nolte, R.T.,Wisely, G.B.,Westin, S.,Cobb, J.E.,Lambert, M.H.,Kurokawa, R.,Rosenfeld, M.G.,Willson, T.M.,Glass, C.K.,Milburn, M.V.
      (1998) Nature 395: 137


    Organizational Affiliation

    Consiglio Nazionale delle Ricerche, Roma 00016, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Peroxisome proliferator-activated receptor gamma
A, B
286Homo sapiensMutation(s): 0 
Gene Names: PPARG (NR1C3)
Find proteins for P37231 (Homo sapiens)
Go to Gene View: PPARG
Go to UniProtKB:  P37231
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
LRG
Query on LRG

Download SDF File 
Download CCD File 
A
(2S)-2-(biphenyl-4-yloxy)-3-phenylpropanoic acid
C21 H18 O3
TZTPJJNNACUQQR-FQEVSTJZSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
LRGEC50: 480 - 560 nM (99) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.316 
  • R-Value Work: 0.237 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 93.144α = 90.00
b = 61.569β = 103.40
c = 118.797γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
MAR345dtbdata collection
SCALEPACKdata scaling
DENZOdata reduction
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-10-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance