Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 28.64 kDa 
• Atom Count: 1951 
• Residue Count: 222 
• Unique protein chains: 1

2P7G

X-ray Structure of Estrogen Related Receptor g in complex with Bisphenol A.

• DOI: 10.2210/pdb2P7G/pdb

• Classification: HORMONE RECEPTOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2007-03-20 Released: 2008-02-26 
• Deposition Author(s): Abad, M.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.260 
• R-Value Work: 0.215 

Literature

Structural determination of estrogen-related receptor gamma in the presence of phenol derivative compounds.

Abad, M.C., Askari, H., O'Neill, J., Klinger, A.L., Milligan, C., Lewandowski, F., Springer, B., Spurlino, J., Rentzeperis, D.

(2008) J Steroid Biochem Mol Biol 108: 44-54

• PubMed: 17964775 
• DOI: 10.1016/j.jsbmb.2007.06.006
• Primary Citation of Related Structures:  
  2P7G, 2P7A, 2P7Z


• PubMed Abstract: 
  

We screened the ligand-binding domain of estrogen-related receptor (ERR) gamma in ThermoFluor, in an effort to develop chemical tools and decipher the biology of this orphan nuclear receptor. Several ligands were found to stabilize thermodynamically the protein. Amongst the ligands were bisphenol A (BPA) and 4-chloro-3-methyl phenol (ClCH3Ph). These ligands were further characterized and found to be competitive for 4-hydroxytamoxifen (4OHT) binding, a known reported antagonist ligand for ERRgamma, but functionally they did not enhance or disrupt affinity of the receptor for co-activator peptides. The preservation of the constitutive active conformation of the receptor in the presence of these two ligands was confirmed upon the determination of the co-crystal structures. The structures of BPA and ClCH3Ph were determined to a resolution of 2.1 and 2.3A, respectively, and the antagonist 4OHT was refined to 2.5A resolution. In the presence of BPA and ClCH3Ph the receptor maintained the transcriptional active conformation as reported previously for the apo-protein in the presence of a co-activator peptide fragment. In addition the ERRgamma-BPA structure identifies an interaction between the phenolic-OH and the side chain of N346. The preservation of the constitutive active conformation of the receptor in the presence of the small phenol compounds suggest that the biological activity of the receptor might be regulated by a natural occurring ligand.

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Organizational Affiliation: 

Johnson & Johnson Pharmaceuticals Research and Development, 665 Stockton Drive, Exton, PA 19341, USA. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Estrogen-related receptor gamma	A	251	Homo sapiens	Mutation(s): 0  Gene Names: ESRRG, ERR3, ERRG2, KIAA0832, NR3B3
Find proteins for P62508 (Homo sapiens) Explore P62508  Go to UniProtKB:  P62508
NIH Common Fund Data Resources
PHAROS  P62508 GTEx  ENSG00000196482

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
2OH	A	4,4'-PROPANE-2,2-DIYLDIPHENOL C15 H16 O2 IISBACLAFKSPIT-UHFFFAOYSA-N
NA	A	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
2OH	IC50:  13.100000381469727   nM  BindingDB
2OH	Kd:  297   nM  Binding MOAD
2OH	IC50:  4.900000095367432   nM  BindingDB
2OH	Kd :  297   nM  PDBBind

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.260 
• R-Value Work: 0.215 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.063	α = 90
b = 64.063	β = 90
c = 136.484	γ = 90

Software Package:

Software Name	Purpose
PROTEUM PLUS	data collection
CNS	refinement
SAINT	data reduction
SCALA	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2007-03-20 
• Released Date: 2008-02-26 
Deposition Author(s): Abad, M.C.

Revision History 

• Version 1.0: 2008-02-26
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance