Biological Assembly 1  

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 34.59 kDa 
• Atom Count: 1,813 
• Modelled Residue Count: 181 
• Deposited Residue Count: 246 
• Unique protein chains: 1
• Unique nucleic acid chains: 2

 1R4I

Crystal Structure of Androgen Receptor DNA-Binding Domain Bound to a Direct Repeat Response Element

• PDB DOI:  https://doi.org/10.2210/pdb1R4I/pdb
• NDB: PD0478

• Classification: TRANSCRIPTION/DNA
• Organism(s): Rattus norvegicus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2003-10-06 Released: 2004-06-29 
• Deposition Author(s): Shaffer, P.L., Jivan, A., Dollins, D.E., Claessens, F., Gewirth, D.T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.10 Å
• R-Value Free: 0.264 
• R-Value Work: 0.246 

Literature

Structural basis of androgen receptor binding to selective androgen response elements.

Shaffer, P.L., Jivan, A., Dollins, D.E., Claessens, F., Gewirth, D.T.

(2004) Proc Natl Acad Sci U S A 101: 4758-4763

• PubMed: 15037741 
• DOI: https://doi.org/10.1073/pnas.0401123101
• Primary Citation of Related Structures:  
  1R4I


• PubMed Abstract: 
  

Steroid receptors bind as dimers to a degenerate set of response elements containing inverted repeats of a hexameric half-site separated by 3 bp of spacer (IR3). Naturally occurring selective androgen response elements have recently been identified that resemble direct repeats of the hexameric half-site (ADR3). The 3D crystal structure of the androgen receptor (AR) DNA-binding domain bound to a selective ADR3 reveals an unexpected head-to-head arrangement of the two protomers rather than the expected head-to-tail arrangement seen in nuclear receptors bound to response elements of similar geometry. Compared with the glucocorticoid receptor, the DNA-binding domain dimer interface of the AR has additional interactions that stabilize the AR dimer and increase the affinity for nonconsensus response elements. This increased interfacial stability compared with the other steroid receptors may account for the selective binding of AR to ADR3 response elements.

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Organizational Affiliation: 

Department of Biochemistry, Duke University Medical Center, Durham, NC 27710, USA.

Macromolecules

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Androgen receptor	C [auth A], D [auth B]	105	Rattus norvegicus	Mutation(s): 1  Gene Names: Ar, Nr3c4
UniProt
Find proteins for P15207 (Rattus norvegicus) Explore P15207  Go to UniProtKB:  P15207

Entity ID: 1
Molecule	Chains	Length	Organism	Image
5'-D(*CP*CP*AP*GP*AP*AP*CP*AP*TP*CP*AP*AP*GP*AP*AP*CP*AP*G)-3'	A [auth C]	18	N/A

Entity ID: 2
Molecule	Chains	Length	Organism	Image
5'-D(*CP*TP*GP*TP*TP*CP*TP*TP*GP*AP*TP*GP*TP*TP*CP*TP*GP*G)-3'	B [auth D]	18	N/A

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	E [auth A], F [auth A], G [auth B], H [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.10 Å
• R-Value Free: 0.264 
• R-Value Work: 0.246 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 137.89	α = 90
b = 137.89	β = 90
c = 85.71	γ = 120

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling
SOLVE	phasing
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-06-29 
Deposition Author(s): Shaffer, P.L., Jivan, A., Dollins, D.E., Claessens, F., Gewirth, D.T.

Revision History  

• Version 1.0: 2004-06-29
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-10-27
  Changes: Database references, Derived calculations