1M2Z

Crystal structure of a dimer complex of the human glucocorticoid receptor ligand-binding domain bound to dexamethasone and a TIF2 coactivator motif


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.237 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal Structure of the Glucocorticoid Receptor Ligand Binding Domain Reveals a Novel Mode of Receptor Dimerization and Coactivator Recognition

Bledsoe, R.B.Montana, V.G.Stanley, T.B.Delves, C.J.Apolito, C.J.Mckee, D.D.Consler, T.G.Parks, D.J.Stewart, E.L.Willson, T.M.Lambert, M.H.Moore, J.T.Pearce, K.H.Xu, H.E.

(2002) Cell 110: 93-105


  • PubMed Abstract: 
  • Transcriptional regulation by the glucocorticoid receptor (GR) is mediated by hormone binding, receptor dimerization, and coactivator recruitment. Here, we report the crystal structure of the human GR ligand binding domain (LBD) bound to dexamethason ...

    Transcriptional regulation by the glucocorticoid receptor (GR) is mediated by hormone binding, receptor dimerization, and coactivator recruitment. Here, we report the crystal structure of the human GR ligand binding domain (LBD) bound to dexamethasone and a coactivator motif derived from the transcriptional intermediary factor 2. Despite structural similarity to other steroid receptors, the GR LBD adopts a surprising dimer configuration involving formation of an intermolecular beta sheet. Functional studies demonstrate that the novel dimer interface is important for GR-mediated activation. The structure also reveals an additional charge clamp that determines the binding selectivity of a coactivator and a distinct ligand binding pocket that explains its selectivity for endogenous steroid hormones. These results establish a framework for understanding the roles of protein-hormone and protein-protein interactions in GR signaling pathways.


    Organizational Affiliation

    Gene Expression and Protein Biochemistry, Research Triangle Park, NC 27709, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
glucocorticoid receptor
A, D
257Homo sapiensGene Names: NR3C1 (GRL)
Find proteins for P04150 (Homo sapiens)
Go to Gene View: NR3C1
Go to UniProtKB:  P04150
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
nuclear receptor coactivator 2
B, E
21Homo sapiensGene Names: NCOA2 (BHLHE75, SRC2, TIF2)
Find proteins for Q15596 (Homo sapiens)
Go to Gene View: NCOA2
Go to UniProtKB:  Q15596
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DEX
Query on DEX

Download SDF File 
Download CCD File 
A, D
DEXAMETHASONE
9A-FLUORO-16BETA-METHYLPREDNISOLONE
C22 H29 F O5
UREBDLICKHMUKA-CXSFZGCWSA-N
 Ligand Interaction
BOG
Query on BOG

Download SDF File 
Download CCD File 
A
B-OCTYLGLUCOSIDE
C14 H28 O6
HEGSGKPQLMEBJL-RKQHYHRCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.237 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 125.843α = 90.00
b = 125.843β = 90.00
c = 85.976γ = 120.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
HKL-2000data collection
AMoREphasing
CNXrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-07-15
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Data collection