2Z4J

Crystal structure of AR LBD with SHP peptide NR Box 2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.207 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Interaction between the androgen receptor and a segment of its corepressor SHP

Jouravel, N.Sablin, E.Arnold, L.A.Guy, R.K.Fletterick, R.J.

(2007) Acta Crystallogr.,Sect.D 63: 1198-1200

  • DOI: 10.1107/S0907444907045702

  • PubMed Abstract: 
  • The mechanisms of functional repression of the androgen receptor (AR) are crucial for the regulation of genes involved in physiological development as well as for the progression of prostate cancer. To date, only two in vivo inhibitors of AR-mediated ...

    The mechanisms of functional repression of the androgen receptor (AR) are crucial for the regulation of genes involved in physiological development as well as for the progression of prostate cancer. To date, only two in vivo inhibitors of AR-mediated transcription have been identified: DAX-1 and SHP (small heterodimer partner). SHP is a regulatory nuclear receptor (NR) that lacks DNA-binding and activation domains. Using X-ray crystallography, the interaction between peptide segments of the SHP repressor containing LxxLL-like motifs and the ligand-binding domain of AR have been investigated. Under the crystallization conditions used, it was found that of the three NR Boxes present in the SHP protein sequence, only NR Box 2 (LKKIL motif) formed a complex with AR. Determination of the crystal structure revealed that ten amino acids of the SHP peptide (14-mer) are ordered through interactions with AR. Two side chains make unique interactions that were not reported for other AR-peptide complexes. The NR Box 2 of SHP binds to an adaptable hydrophobic groove on the surface of AR in a fashion observed for other NR-LxxLL-like complexes. Comparisons of AR structures bound to coactivator peptides and the SHP peptide revealed structural similarity of their binding sites, suggesting that transcriptional AR activity may be inhibited by SHP by competing with AR coactivators.


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Androgen receptor
A
248Homo sapiensMutation(s): 0 
Gene Names: AR (DHTR, NR3C4)
Find proteins for P10275 (Homo sapiens)
Go to Gene View: AR
Go to UniProtKB:  P10275
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Nuclear receptor 0B2
B
10Homo sapiensMutation(s): 0 
Gene Names: NR0B2 (SHP)
Find proteins for Q15466 (Homo sapiens)
Go to Gene View: NR0B2
Go to UniProtKB:  Q15466
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DHT
Query on DHT

Download SDF File 
Download CCD File 
A
5-ALPHA-DIHYDROTESTOSTERONE
C19 H30 O2
NVKAWKQGWWIWPM-ABEVXSGRSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
DHTKi: 0.2 - 10 nM (100) BINDINGDB
DHTEC50: 0.1 - 20 nM (100) BINDINGDB
DHTIC50: 0 nM (100) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.207 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 55.979α = 90.00
b = 66.542β = 90.00
c = 71.842γ = 90.00
Software Package:
Software NamePurpose
ADSCdata collection
CNSrefinement
DENZOdata reduction
CNSphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-12-04
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance