2P7Z

Estrogen Related Receptor Gamma in complex with 4-hydroxy-tamoxifen


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

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

  • DOI: 10.1016/j.jsbmb.2007.06.006
  • Primary Citation of Related Structures:  

  • 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 ...

    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.


    Organizational Affiliation

    Johnson & Johnson Pharmaceuticals Research and Development, 665 Stockton Drive, Exton, PA 19341, USA. mabad@prdus.jnj.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Estrogen-related receptor gamma
A
251Homo sapiensMutation(s): 0 
Gene Names: ESRRG (ERR3, ERRG2, KIAA0832, NR3B3)
Find proteins for P62508 (Homo sapiens)
Go to Gene View: ESRRG
Go to UniProtKB:  P62508
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OHT
Query on OHT

Download SDF File 
Download CCD File 
A
4-HYDROXYTAMOXIFEN
C26 H29 N O2
TXUZVZSFRXZGTL-QPLCGJKRSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
OHTEC50: 15 nM (100) BINDINGDB
OHTIC50: 10.3 - 1350 nM (100) BINDINGDB
OHTKd: 262 nM BINDINGMOAD
OHTKd: 262 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.213 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 63.990α = 90.00
b = 63.990β = 90.00
c = 137.952γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
PROTEUM PLUSdata collection
CNSrefinement
SCALAdata scaling
CNSphasing
SAINTdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2007-03-21 
  • 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
    Type: Version format compliance