4J26

Estrogen Receptor in complex with proline-flanked LXXLL peptides


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Proline primed helix length as a modulator of the nuclear receptor-coactivator interaction

Fuchs, S.Nguyen, H.D.Phan, T.T.Burton, M.F.Nieto, L.de Vries-van Leeuwen, I.J.Schmidt, A.Goodarzifard, M.Agten, S.M.Rose, R.Ottmann, C.Milroy, L.G.Brunsveld, L.

(2013) J.Am.Chem.Soc. 135: 4364-4371

  • DOI: 10.1021/ja311748r
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Nuclear receptor binding to coactivator proteins is an obligate first step in the regulation of gene transcription. Nuclear receptors preferentially bind to an LXXLL peptide motif which is highly conserved throughout the 300 or so natural coactivator ...

    Nuclear receptor binding to coactivator proteins is an obligate first step in the regulation of gene transcription. Nuclear receptors preferentially bind to an LXXLL peptide motif which is highly conserved throughout the 300 or so natural coactivator proteins. This knowledge has shaped current understanding of this fundamental protein-protein interaction, and continues to inspire the search for new drug therapies. However, sequence specificity beyond the LXXLL motif and the molecular functioning of flanking residues still requires urgent addressing. Here, ribosome display has been used to reassess the estrogen receptor for new and enlarged peptide recognition motifs, leading to the discovery of a potent and highly evolved PXLXXLLXXP binding consensus. Molecular modeling and X-ray crystallography studies have provided the molecular insights on the role of the flanking prolines in priming the length of the α-helix and enabling optimal interactions of the α-helix dipole and its surrounding amino acids with the surface charge clamp and the receptor activation function 2. These findings represent new structural parameters for modulating the nuclear receptor-coactivator interaction based on linear sequences of proteinogenic amino acids and for the design of chemically modified inhibitors.


    Organizational Affiliation

    Laboratory of Chemical Biology, Department of Biomedical Engineering, Technische Universiteit Eindhoven, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Estrogen receptor beta
A, B
240Homo sapiensMutation(s): 0 
Gene Names: ESR2 (ESTRB, NR3A2)
Find proteins for Q92731 (Homo sapiens)
Go to Gene View: ESR2
Go to UniProtKB:  Q92731
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
12-mer Peptide
I, J
12N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EST
Query on EST

Download SDF File 
Download CCD File 
A, B
ESTRADIOL
C18 H24 O2
VOXZDWNPVJITMN-ZBRFXRBCSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ESTIC50: 1.7 - 2.3 nM (92) BINDINGDB
ESTEC50: 0.1 nM (92) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.203 
  • Space Group: P 32
Unit Cell:
Length (Å)Angle (°)
a = 62.630α = 90.00
b = 62.630β = 90.00
c = 125.670γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
MAR345dtbdata collection
REFMACrefinement
XSCALEdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-03-13
    Type: Initial release
  • Version 1.1: 2013-07-10
    Type: Database references