Human androgen receptor in complex with AF2 small molecule inhibitor

Experimental Data Snapshot

  • Resolution: 2.20 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.211 

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This is version 1.2 of the entry. See complete history


Inhibitors of Androgen Receptor Activation Function-2 (Af2) Site Identified Through Virtual Screening.

Axerio-Cilies, P.Lack, N.A.Nayana, M.R.Chan, K.H.Yeung, A.Leblanc, E.Guns, E.S.Rennie, P.S.Cherkasov, A.

(2011) J Med Chem 54: 6197

  • DOI: https://doi.org/10.1021/jm200532b
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The androgen receptor (AR) is one of the most studied drug targets for the treatment of prostate cancer. However, all current anti-androgens directly interact with the AR at the androgen binding site, which is prone to resistant mutations, calling for new strategies of the AR inhibition. The current study represents the first attempt to use virtual screening to identify inhibitors of activation function-2 (AF2) of the human AR. By combining large-scale docking with experimental approaches, we were able to identify several small molecules that interact with the AF2 and effectively prevent the transcriptional activation of the AR. The crystallographic structure of one of these inhibitors in complex with the AR provides critical insight into the corresponding protein-ligand interactions and suitable for future hit optimization. Taken together, our results provide a promising ground for development of novel anti-androgens that can help to address the problem of drug resistance in prostate cancer.

  • Organizational Affiliation

    Vancouver Prostate Centre, University of British Columbia, 2660 Oak Street, Vancouver, British Columbia V6H 3Z6, Canada.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ANDROGEN RECEPTOR249Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P10275 (Homo sapiens)
Explore P10275 
Go to UniProtKB:  P10275
PHAROS:  P10275
GTEx:  ENSG00000169083 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP10275
Sequence Annotations
  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
TES BindingDB:  2YHD Ki: min: 1.4, max: 29 (nM) from 5 assay(s)
IC50: min: 2.7, max: 3090.3 (nM) from 11 assay(s)
EC50: min: 1.1, max: 3.16 (nM) from 3 assay(s)
AV6 PDBBind:  2YHD Ki: 2.30e+4 (nM) from 1 assay(s)
BindingDB:  2YHD IC50: min: 1.86e+4, max: 3.06e+4 (nM) from 2 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.20 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.211 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.53α = 90
b = 66.75β = 90
c = 73.68γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
MOSFLMdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-09-21
    Type: Initial release
  • Version 1.1: 2011-10-19
    Changes: Database references
  • Version 1.2: 2023-12-20
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description