Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 30.54 kDa 
• Atom Count: 2090 
• Modelled Residue Count: 247 
• Deposited Residue Count: 260 
• Unique protein chains: 1

1I38

CRYSTAL STRUCTURE OF THE RAT ANDROGEN RECEPTOR LIGAND BINDING DOMAIN T877A MUTANT COMPLEX WITH DIHYDROTESTOSTERONE

• PDB DOI: 10.2210/pdb1I38/pdb

• Classification: HORMONE/GROWTH FACTOR
• Organism(s): Rattus norvegicus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2001-02-13 Released: 2001-03-21 
• Deposition Author(s): Sack, J.S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.345 
• R-Value Work: 0.280 

Literature

Crystallographic structures of the ligand-binding domains of the androgen receptor and its T877A mutant complexed with the natural agonist dihydrotestosterone.

Sack, J.S., Kish, K.F., Wang, C., Attar, R.M., Kiefer, S.E., An, Y., Wu, G.Y., Scheffler, J.E., Salvati, M.E., Krystek Jr., S.R., Weinmann, R., Einspahr, H.M.

(2001) Proc Natl Acad Sci U S A 98: 4904-4909

• PubMed: 11320241 
• DOI: 10.1073/pnas.081565498
• Primary Citation of Related Structures:  
  1I37, 1I38


• PubMed Abstract: 
  

The structures of the ligand-binding domains (LBD) of the wild-type androgen receptor (AR) and the T877A mutant corresponding to that in LNCaP cells, both bound to dihydrotestosterone, have been refined at 2.0 A resolution. In contrast to the homodimer seen in the retinoid-X receptor and estrogen receptor LBD structures, the AR LBD is monomeric, possibly because of the extended C terminus of AR, which lies in a groove at the dimerization interface. Binding of the natural ligand dihydrotestosterone by the mutant LBD involves interactions with the same residues as in the wild-type receptor, with the exception of the side chain of threonine 877, which is an alanine residue in the mutant. This structural difference in the binding pocket can explain the ability of the mutant AR found in LNCaP cells (T877A) to accommodate progesterone and other ligands that the wild-type receptor cannot.

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Organizational Affiliation: 

Bristol-Myers Squibb Pharmaceutical Research Institute, P.O. Box 4000, Princeton, NJ 08543-4000, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ANDROGEN RECEPTOR	A	260	Rattus norvegicus	Mutation(s): 0  Gene Names: Ar, Nr3c4
UniProt
Find proteins for P15207 (Rattus norvegicus) Explore P15207  Go to UniProtKB:  P15207

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
DHT	B [auth A]	5-ALPHA-DIHYDROTESTOSTERONE C19 H30 O2 NVKAWKQGWWIWPM-ABEVXSGRSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
DHT	BindingDB:  1I38	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: 0.345 
• R-Value Work: 0.280 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.01	α = 90
b = 65.71	β = 90
c = 70.77	γ = 90

Software Package:

Software Name	Purpose
AMoRE	phasing
CNX	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2001-02-13 
• Released Date: 2001-03-21 
Deposition Author(s): Sack, J.S.

Revision History  

• Version 1.0: 2001-03-21
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance