1ERE

HUMAN ESTROGEN RECEPTOR LIGAND-BINDING DOMAIN IN COMPLEX WITH 17BETA-ESTRADIOL


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Molecular basis of agonism and antagonism in the oestrogen receptor.

Brzozowski, A.M.Pike, A.C.Dauter, Z.Hubbard, R.E.Bonn, T.Engstrom, O.Ohman, L.Greene, G.L.Gustafsson, J.A.Carlquist, M.

(1997) Nature 389: 753-758

  • DOI: 10.1038/39645
  • Primary Citation of Related Structures:  
  • Also Cited By: 1QKN, 1QKM, 1GWR, 1GWQ

  • PubMed Abstract: 
  • Oestrogens are involved in the growth, development and homeostasis of a number of tissues. The physiological effects of these steroids are mediated by a ligand-inducible nuclear transcription factor, the oestrogen receptor (ER). Hormone binding to th ...

    Oestrogens are involved in the growth, development and homeostasis of a number of tissues. The physiological effects of these steroids are mediated by a ligand-inducible nuclear transcription factor, the oestrogen receptor (ER). Hormone binding to the ligand-binding domain (LBD) of the ER initiates a series of molecular events culminating in the activation or repression of target genes. Transcriptional regulation arises from the direct interaction of the ER with components of the cellular transcription machinery. Here we report the crystal structures of the LBD of ER in complex with the endogenous oestrogen, 17beta-oestradiol, and the selective antagonist raloxifene, at resolutions of 3.1 and 2.6 A, respectively. The structures provide a molecular basis for the distinctive pharmacophore of the ER and its catholic binding properties. Agonist and antagonist bind at the same site within the core of the LBD but demonstrate different binding modes. In addition, each class of ligand induces a distinct conformation in the transactivation domain of the LBD, providing structural evidence of the mechanism of antagonism.


    Organizational Affiliation

    Protein Structure Group, Chemistry Department, University of York, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ESTROGEN RECEPTOR
A, B, C, D, E, F
253Homo sapiensMutation(s): 0 
Gene Names: ESR1 (ESR, NR3A1)
Find proteins for P03372 (Homo sapiens)
Go to Gene View: ESR1
Go to UniProtKB:  P03372
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EST
Query on EST

Download SDF File 
Download CCD File 
A, B, C, D, E, F
ESTRADIOL
C18 H24 O2
VOXZDWNPVJITMN-ZBRFXRBCSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ESTIC50: 1.9 - 2.2 nM (95) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.218 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 61.480α = 90.00
b = 115.160β = 98.80
c = 137.380γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
REFMACrefinement
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-09-16
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance