3L3Z

Crystal structure of DHT-bound androgen receptor in complex with the third motif of steroid receptor coactivator 3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.196 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Identification of SRC3/AIB1 as a Preferred Coactivator for Hormone-activated Androgen Receptor.

Zhou, X.E.Suino-Powell, K.M.Li, J.He, Y.Mackeigan, J.P.Melcher, K.Yong, E.L.Xu, H.E.

(2010) J Biol Chem 285: 9161-9171

  • DOI: https://doi.org/10.1074/jbc.M109.085779
  • Primary Citation of Related Structures:  
    3L3X, 3L3Z

  • PubMed Abstract: 

    Transcription activation by androgen receptor (AR), which depends on recruitment of coactivators, is required for the initiation and progression of prostate cancer, yet the mechanisms of how hormone-activated AR interacts with coactivators remain unclear. This is because AR, unlike any other nuclear receptor, prefers its own N-terminal FXXLF motif to the canonical LXXLL motifs of coactivators. Through biochemical and crystallographic studies, we identify that steroid receptor coactivator-3 (SRC3) (also named as amplified in breast cancer-1 or AIB1) interacts strongly with AR via synergistic binding of its first and third LXXLL motifs. Mutagenesis and functional studies confirm that SRC3 is a preferred coactivator for hormone-activated AR. Importantly, AR mutations found in prostate cancer patients correlate with their binding potency to SRC3, corroborating with the emerging role of SRC3 as a prostate cancer oncogene. These results provide a molecular mechanism for the selective utilization of SRC3 by hormone-activated AR, and they link the functional relationship between AR and SRC3 to the development and growth of prostate cancer.


  • Organizational Affiliation

    Laboratory of Structural Sciences, Van Andel Research Institute, Grand Rapids, Michigan 49503, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Androgen receptor250Homo sapiensMutation(s): 0 
Gene Names: ARDHTRNR3C4
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
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Nuclear receptor coactivator 312Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y6Q9 (Homo sapiens)
Explore Q9Y6Q9 
Go to UniProtKB:  Q9Y6Q9
PHAROS:  Q9Y6Q9
GTEx:  ENSG00000124151 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9Y6Q9
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
DHT
Query on DHT

Download Ideal Coordinates CCD File 
C [auth A]5-ALPHA-DIHYDROTESTOSTERONE
C19 H30 O2
NVKAWKQGWWIWPM-ABEVXSGRSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
DHT BindingDB:  3L3Z 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

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.196 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.427α = 90
b = 66.83β = 90
c = 72.494γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
DENZOdata reduction
SCALEPACKdata 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: 2010-01-12
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-01
    Changes: Refinement description