1L2I

Human Estrogen Receptor alpha Ligand-binding Domain in Complex with (R,R)-5,11-cis-diethyl-5,6,11,12-tetrahydrochrysene-2,8-diol and a Glucocorticoid Receptor Interacting Protein 1 NR box II Peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural characterization of a subtype-selective ligand reveals a novel mode of estrogen receptor antagonism.

Shiau, A.K.Barstad, D.Radek, J.T.Meyers, M.J.Nettles, K.W.Katzenellenbogen, B.S.Katzenellenbogen, J.A.Agard, D.A.Greene, G.L.

(2002) Nat Struct Biol 9: 359-364

  • DOI: 10.1038/nsb787
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The R,R enantiomer of 5,11-cis-diethyl-5,6,11,12-tetrahydrochrysene-2,8-diol (THC) exerts opposite effects on the transcriptional activity of the two estrogen receptor (ER) subtypes, ER alpha and ER beta. THC acts as an ER alpha agonist and as an ER ...

    The R,R enantiomer of 5,11-cis-diethyl-5,6,11,12-tetrahydrochrysene-2,8-diol (THC) exerts opposite effects on the transcriptional activity of the two estrogen receptor (ER) subtypes, ER alpha and ER beta. THC acts as an ER alpha agonist and as an ER beta antagonist. We have determined the crystal structures of the ER alpha ligand binding domain (LBD) bound to both THC and a fragment of the transcriptional coactivator GRIP1, and the ER beta LBD bound to THC. THC stabilizes a conformation of the ER alpha LBD that permits coactivator association and a conformation of the ER beta LBD that prevents coactivator association. A comparison of the two structures, taken together with functional data, reveals that THC does not act on ER beta through the same mechanisms used by other known ER antagonists. Instead, THC antagonizes ER beta through a novel mechanism we term 'passive antagonism'.


    Related Citations: 
    • The Structural Basis of Estrogen Receptor/Coactivator Recognition and the Antagonism of this Interaction by Tamoxifen
      Shiau, A.K., Barstad, D., Loria, P.M., Cheng, L., Kushner, P.J., Agard, D.A., Greene, G.L.
      (1998) Cell 95: 927
    • Estrogen Receptor Subtype-selective Ligands: Asymmetric Synthesis and Biological Evaluation of cis- and trans-5,11-dialkyl-5,6,11,12-tetrahydrochrysenes
      Meyers, M.J., Sun, J., Carlson, K.E., Katzenellenbogen, B.S., Katzenellenbogen, J.A.
      (1999) J Med Chem 42: 2456

    Organizational Affiliation

    The Howard Hughes Medical Institute and Department of Biochemistry and Biophysics, University of California, San Francisco, California 94143, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ESTROGEN RECEPTOR
A, B
261Homo sapiensMutation(s): 1 
Gene Names: ESR1ESRNR3A1
Find proteins for P03372 (Homo sapiens)
Go to UniProtKB:  P03372
NIH Common Fund Data Resources
PHAROS  P03372
Protein Feature View
  • Reference Sequence
  • Find similar proteins by: Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
GLUCOCORTICOID RECEPTOR-INTERACTING PROTEIN 1
C, D
13N/AMutation(s): 0 
Find proteins for Q61026 (Mus musculus)
Go to UniProtKB:  Q61026
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ETC
Query on ETC

Download CCD File 
A, B
(R,R)-5,11-CIS-DIETHYL-5,6,11,12-TETRAHYDROCHRYSENE-2,8-DIOL
C22 H24 O2
MASYAWHPJCQLSW-ZIAGYGMSSA-N
 Ligand Interaction
CL
Query on CL

Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CCS
Query on CCS
A,BL-PEPTIDE LINKINGC5 H9 N O4 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.203 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.545α = 90
b = 82.6β = 111.53
c = 59.04γ = 90
Software Package:
Software NamePurpose
CNSrefinement
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-05-01
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-07-24
    Changes: Data collection, Derived calculations, Refinement description