Crystal Structure of the Antagonist Form of Glucocorticoid Receptor

Experimental Data Snapshot

  • Resolution: 2.30 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.208 

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The Three-dimensional Structures of Antagonistic and Agonistic Forms of the Glucocorticoid Receptor Ligand-binding Domain: RU-486 INDUCES A TRANSCONFORMATION THAT LEADS TO ACTIVE ANTAGONISM.

Kauppi, B.Jakob, C.Farnegardh, M.Yang, J.Ahola, H.Alarcon, M.Calles, K.Engstrom, O.Harlan, J.Muchmore, S.Ramqvist, A.-K.Thorell, S.Ohman, L.Greer, J.Gustafsson, J.-A.Carlstedt-Duke, J.Carlquist, M.

(2003) J Biol Chem 278: 22748-22754

  • DOI: https://doi.org/10.1074/jbc.M212711200
  • Primary Citation of Related Structures:  
    1NHZ, 1P93

  • PubMed Abstract: 

    Here we describe the three-dimensional crystal structures of human glucocorticoid receptor ligand-binding domain (GR-LBD) in complex with the antagonist RU-486 at 2.3 A resolution and with the agonist dexamethasone ligand together with a coactivator peptide at 2.8 A. The RU-486 structure was solved in several different crystal forms, two with helix 12 intact (GR1 and GR3) and one with a protease-digested C terminus (GR2). In GR1, part of helix 12 is in a position that covers the co-activator pocket, whereas in the GR3, domain swapping is seen between the crystallographically identical subunits in the GR dimer. An arm consisting of the end of helix 11 and beyond stretches out from one molecule, and helix 12 binds to the other LBD, partly blocking the coactivator pocket of that molecule. This type of GR-LBD dimer has not been described before but might be an artifact from crystallization. Furthermore, the subunits of the GR3 dimers are covalently connected via a disulfide bond between the Cys-736 residues in the two molecules. All three RU-486 GR-LBD structures show that GR has a very flexible region between the end of helix 11 and the end of helix 12.

  • Organizational Affiliation

    Structure Biology, Karo Bio AB, Novum, SE-141 57 Huddinge, Sweden. kauppi@karobio.se

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GLUCOCORTICOID RECEPTOR280Homo sapiensMutation(s): 3 
UniProt & NIH Common Fund Data Resources
Find proteins for P04150 (Homo sapiens)
Explore P04150 
Go to UniProtKB:  P04150
PHAROS:  P04150
GTEx:  ENSG00000113580 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04150
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on 486

Download Ideal Coordinates CCD File 
C29 H35 N O2
Query on HEZ

Download Ideal Coordinates CCD File 
C [auth A],
D [auth A],
E [auth A]
C6 H14 O2
Binding Affinity Annotations 
IDSourceBinding Affinity
486 BindingDB:  1NHZ Ki: min: 0.09, max: 169 (nM) from 18 assay(s)
Kd: 15 (nM) from 1 assay(s)
IC50: min: 8.00e-3, max: 33 (nM) from 31 assay(s)
EC50: min: 0.6, max: 2500 (nM) from 6 assay(s)
PDBBind:  1NHZ Ki: 840 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.30 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.208 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.859α = 90
b = 109.764β = 90
c = 39.261γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
CCP4data scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2003-05-06
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2020-09-02
    Changes: Database references, Derived calculations, Structure summary
  • Version 1.4: 2021-10-27
    Changes: Database references
  • Version 1.5: 2024-02-14
    Changes: Data collection