Human Progesteron Receptor Ligand Binding Domain in complex with the ligand metribolone (R1881)

Experimental Data Snapshot

  • Resolution: 2.80 Å
  • R-Value Free: 0.343 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.240 

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This is version 1.5 of the entry. See complete history


Structural evidence for ligand specificity in the binding domain of the human androgen receptor. Implications for pathogenic gene mutations.

Matias, P.M.Donner, P.Coelho, R.Thomaz, M.Peixoto, C.Macedo, S.Otto, N.Joschko, S.Scholz, P.Wegg, A.Basler, S.Schafer, M.Egner, U.Carrondo, M.A.

(2000) J Biol Chem 275: 26164-26171

  • DOI: https://doi.org/10.1074/jbc.M004571200
  • Primary Citation of Related Structures:  
    1E3G, 1E3K

  • PubMed Abstract: 

    The crystal structures of the human androgen receptor (hAR) and human progesterone receptor ligand-binding domains in complex with the same ligand metribolone (R1881) have been determined. Both three-dimensional structures show the typical nuclear receptor fold. The change of two residues in the ligand-binding pocket between the human progesterone receptor and hAR is most likely the source for the specificity of R1881 to the hAR. The structural implications of the 14 known mutations in the ligand-binding pocket of the hAR ligand-binding domains associated with either prostate cancer or the partial or complete androgen receptor insensitivity syndrome were analyzed. The effects of most of these mutants could be explained on the basis of the crystal structure.

  • Organizational Affiliation

    Instituto de Tecnologia Quimica e Biológica, Universidade Nova de Lisboa, Apartado 127, 2780 Oeiras, Portugal.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
258Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P06401 (Homo sapiens)
Explore P06401 
Go to UniProtKB:  P06401
PHAROS:  P06401
GTEx:  ENSG00000082175 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP06401
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on R18

Download Ideal Coordinates CCD File 
C [auth A],
D [auth B]
C19 H24 O2
Binding Affinity Annotations 
IDSourceBinding Affinity
R18 BindingDB:  1E3K Ki: 0.49 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.80 Å
  • R-Value Free: 0.343 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.240 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 58.402α = 90
b = 65.011β = 95.65
c = 71.181γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2001-06-14
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-02-28
    Changes: Database references, Source and taxonomy, Structure summary
  • Version 1.4: 2019-05-08
    Changes: Data collection, Experimental preparation
  • Version 1.5: 2023-12-13
    Changes: Data collection, Database references, Other, Refinement description