1PRG

LIGAND BINDING DOMAIN OF THE HUMAN PEROXISOME PROLIFERATOR ACTIVATED RECEPTOR GAMMA

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.318 
  • R-Value Work: 0.246 
  • R-Value Observed: 0.246 

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This is version 1.2 of the entry. See complete history. 


Literature

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: 137-143

  • DOI: 10.1038/25931
  • Primary Citation of Related Structures:  
    2PRG, 1PRG

  • PubMed Abstract: 

    • The peroxisome proliferator-activated receptor-gamma (PPAR-gamma) is a ligand-dependent transcription factor that is important in adipocyte differentiation and glucose homeostasis and which depends on interactions with co-activators, including steroid receptor co-activating factor-1 (SRC-1) ...

    The peroxisome proliferator-activated receptor-gamma (PPAR-gamma) is a ligand-dependent transcription factor that is important in adipocyte differentiation and glucose homeostasis and which depends on interactions with co-activators, including steroid receptor co-activating factor-1 (SRC-1). Here we present the X-ray crystal structure of the human apo-PPAR-gamma ligand-binding domain (LBD), at 2.2 A resolution; this structure reveals a large binding pocket, which may explain the diversity of ligands for PPAR-gamma. We also describe the ternary complex containing the PPAR-gamma LBD, the antidiabetic ligand rosiglitazone (BRL49653), and 88 amino acids of human SRC-1 at 2.3 A resolution. Glutamate and lysine residues that are highly conserved in LBDs of nuclear receptors form a 'charge clamp' that contacts backbone atoms of the LXXLL helices of SRC-1. These results, together with the observation that two consecutive LXXLL motifs of SRC-1 make identical contacts with both subunits of a PPAR-gamma homodimer, suggest a general mechanism for the assembly of nuclear receptors with co-activators.

    Organizational Affiliation: 

    Department of Structural Chemistry, Glaxo Wellcome Research and Development, Research Triangle Park, North Carolina 27709, USA.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (PEROXISOME PROLIFERATOR ACTIVATED RECEPTOR GAMMA) A, B270Homo sapiensMutation(s): 0 
Gene Names: HUMAN PPAR GAMMA CDNA, PPARG, NR1C3
Find proteins for P37231 (Homo sapiens)
Explore P37231 
Go to UniProtKB:  P37231
NIH Common Fund Data Resources
PHAROS:  P37231
GTEx:  ENSG00000132170
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.318 
  • R-Value Work: 0.246 
  • R-Value Observed: 0.246 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.87α = 90
b = 62β = 102.66
c = 118.34γ = 90
Software Package:
Software NamePurpose
PHASESphasing
CCP4model building
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CCP4phasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-01-13
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance