Complex Androgen Receptor LBD and RAC3 peptide

Experimental Data Snapshot

  • Resolution: 2.70 Å
  • R-Value Free: 0.320 
  • R-Value Work: 0.234 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history


The Molecular Mechanisms of Coactivator Utilization in Ligand-dependent Transactivation by the Androgen Receptor

Estebanez-Perpina, E.Moore, J.M.R.Mar, E.Delgado-Rodrigues, E.Nguyen, P.Baxter, J.D.Buehrer, B.M.Webb, P.Fletterick, R.J.Guy, R.K.

(2005) J Biol Chem 280: 8060-8068

  • DOI: https://doi.org/10.1074/jbc.M407046200
  • Primary Citation of Related Structures:  
    1T5Z, 1T63, 1T65, 1XJ7

  • PubMed Abstract: 

    Androgens drive sex differentiation, bone and muscle development, and promote growth of hormone-dependent cancers by binding the nuclear androgen receptor (AR), which recruits coactivators to responsive genes. Most nuclear receptors recruit steroid receptor coactivators (SRCs) to their ligand binding domain (LBD) using a leucine-rich motif (LXXLL). AR is believed to recruit unique coactivators to its LBD using an aromatic-rich motif (FXXLF) while recruiting SRCs to its N-terminal domain (NTD) through an alternate mechanism. Here, we report that the AR-LBD interacts with both FXXLF motifs and a subset of LXXLL motifs and that contacts with these LXXLL motifs are both necessary and sufficient for SRC-mediated AR regulation of transcription. Crystal structures of the activated AR in complex with both recruitment motifs reveal that side chains unique to the AR-LBD rearrange to bind either the bulky FXXLF motifs or the more compact LXXLL motifs and that AR utilizes subsidiary contacts with LXXLL flanking sequences to discriminate between LXXLL motifs.

  • Organizational Affiliation

    Department of Biochemistry and Biophysics, University of California, San Francisco, California 94143, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Androgen receptor257Homo 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

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
RAC3 derived peptide9N/AMutation(s): 0 
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on DHT

Download Ideal Coordinates CCD File 
C19 H30 O2
Binding Affinity Annotations 
IDSourceBinding Affinity
DHT BindingDB:  1XJ7 Ki: min: 0.2, max: 10 (nM) from 12 assay(s)
IC50: min: 0.05, max: 18.5 (nM) from 14 assay(s)
EC50: min: 0.05, max: 20 (nM) from 14 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.70 Å
  • R-Value Free: 0.320 
  • R-Value Work: 0.234 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.058α = 90
b = 66.831β = 90
c = 71.077γ = 90
Software Package:
Software NamePurpose
ELVESdata reduction
ELVESdata scaling

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2005-01-25
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description
  • Version 1.4: 2024-03-13
    Changes: Data collection, Database references, Derived calculations