1N83

Crystal Structure of the complex between the Orphan Nuclear Hormone Receptor ROR(alpha)-LBD and Cholesterol


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.63 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

X-ray Structure of hROR(alpha) LBD at 1.63A: Structural and Functional data that Cholesterol or a Cholesterol derivative is the natural ligand of ROR(alpha)

Kallen, J.A.Schlaeppi, J.M.Bitsch, F.Geisse, S.Geiser, M.Delhon, I.Fournier, B.

(2002) Structure 10: 1697-1702


  • PubMed Abstract: 
  • The retinoic acid-related orphan receptor alpha (RORalpha) is an orphan member of the subfamily 1 of nuclear hormone receptors. No X-ray structure of RORalpha has been described so far, and no ligand has been identified. We describe the first crystal ...

    The retinoic acid-related orphan receptor alpha (RORalpha) is an orphan member of the subfamily 1 of nuclear hormone receptors. No X-ray structure of RORalpha has been described so far, and no ligand has been identified. We describe the first crystal structure of the ligand binding domain (LBD) of RORalpha, at 1.63 A resolution. This structure revealed a ligand present in the ligand binding pocket (LBP), which was identified by X-ray crystallography as cholest-5-en-3beta-ol (cholesterol). Moreover, RORalpha transcriptional activity could be modulated by changes in intracellular cholesterol level or mutation of residues involved in cholesterol binding. These findings suggest that RORalpha could play a key role in the regulation of cholesterol homeostasis and thus represents an important drug target in cholesterol-related diseases.


    Organizational Affiliation

    Central Technologies, Protein Structure Unit, Novartis Pharma AG, CH-4002 Basel, Switzerland. joerg.kallen@pharma.novartis.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nuclear receptor ROR-alpha
A
270Homo sapiensMutation(s): 0 
Gene Names: RORA (NR1F1, RZRA)
Find proteins for P35398 (Homo sapiens)
Go to Gene View: RORA
Go to UniProtKB:  P35398
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CLR
Query on CLR

Download SDF File 
Download CCD File 
A
CHOLESTEROL
C27 H46 O
HVYWMOMLDIMFJA-DPAQBDIFSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.63 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.201 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 54.800α = 90.00
b = 49.700β = 98.40
c = 60.500γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MLPHAREphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-12-11
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance