1T63

Crystal Structure of the Androgen Receptor Ligand Binding Domain with DHT and a peptide derived from its physiological coactivator GRIP1 NR box3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.07 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.200 

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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

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: 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) ...

    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.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Androgen receptorA251Homo sapiensMutation(s): 0 
Gene Names: ARNR3C4DHTR
UniProt & NIH Common Fund Data Resources
Find proteins for P10275 (Homo sapiens)
Explore P10275 
Go to UniProtKB:  P10275
PHAROS:  P10275
Entity Groups  
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UniProt GroupP10275
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Nuclear receptor coactivator 2B14Homo sapiensMutation(s): 0 
Gene Names: NCOA2TIF2BHLHE75SRC2
UniProt & NIH Common Fund Data Resources
Find proteins for Q15596 (Homo sapiens)
Explore Q15596 
Go to UniProtKB:  Q15596
PHAROS:  Q15596
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ15596
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / 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
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
DHT BindingDB:  1T63 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: 2.07 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.200 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.49α = 90
b = 67.37β = 90
c = 70.52γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing

Structure Validation

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Ligand Structure Quality Assessment 



Entry History 

Deposition Data

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