8ATZ

Crystal structure of PPAR gamma (PPARG) in complex with SA112 (compound 2).


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.199 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Targeting the Alternative Vitamin E Metabolite Binding Site Enables Noncanonical PPAR gamma Modulation.

Arifi, S.Marschner, J.A.Pollinger, J.Isigkeit, L.Heitel, P.Kaiser, A.Obeser, L.Hofner, G.Proschak, E.Knapp, S.Chaikuad, A.Heering, J.Merk, D.

(2023) J Am Chem Soc 145: 14802-14810

  • DOI: https://doi.org/10.1021/jacs.3c03417
  • Primary Citation of Related Structures:  
    8ATY, 8ATZ, 8CPH, 8CPI, 8CPJ

  • PubMed Abstract: 

    The lipid-sensing transcription factor PPARγ is the target of antidiabetic thiazolidinediones (TZD). At two sites within its ligand binding domain, it also binds oxidized vitamin E metabolites and the vitamin E mimetic garcinoic acid. While the canonical interaction within the TZD binding site mediates classical PPARγ activation, the effects of the second binding on PPARγ activity remain elusive. Here, we identified an agonist mimicking dual binding of vitamin E metabolites and developed a selective ligand of the second site, unveiling potential noncanonical regulation of PPARγ activities. We found that this alternative binding event can simultaneously occur with orthosteric ligands and it exerted different effects on PPARγ-cofactor interactions compared to both orthosteric PPARγ agonists and antagonists, indicating the diverse roles of the two binding sites. Alternative site binding lacked the pro-adipogenic effect of TZD and mediated no classical PPAR signaling in differential gene expression analysis but markedly diminished FOXO signaling, suggesting potential therapeutic applications.


  • Organizational Affiliation

    Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, D-60438 Frankfurt, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Peroxisome proliferator-activated receptor gamma277Homo sapiensMutation(s): 0 
Gene Names: PPARGNR1C3
UniProt & NIH Common Fund Data Resources
Find proteins for P37231 (Homo sapiens)
Explore P37231 
Go to UniProtKB:  P37231
PHAROS:  P37231
GTEx:  ENSG00000132170 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP37231
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
O86 (Subject of Investigation/LOI)
Query on O86

Download Ideal Coordinates CCD File 
C [auth A]2-[4-chloranyl-6-[[3-(2-phenylethoxy)phenyl]amino]pyrimidin-2-yl]sulfanylethanoic acid
C20 H18 Cl N3 O3 S
SWNYGRWXDONBNB-UHFFFAOYSA-N
GOL
Query on GOL

Download Ideal Coordinates CCD File 
B [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.199 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.515α = 90
b = 65.515β = 90
c = 157.373γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2023-07-12
    Type: Initial release
  • Version 1.1: 2023-07-19
    Changes: Database references
  • Version 1.2: 2024-02-07
    Changes: Data collection, Refinement description