1ERN

NATIVE STRUCTURE OF THE EXTRACELLULAR DOMAIN OF ERYTHROPOIETIN (EPO) RECEPTOR [EBP]


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystallographic evidence for preformed dimers of erythropoietin receptor before ligand activation.

Livnah, O.Stura, E.A.Middleton, S.A.Johnson, D.L.Jolliffe, L.K.Wilson, I.A.

(1999) Science 283: 987-990


  • PubMed Abstract: 
  • Erythropoietin receptor (EPOR) is thought to be activated by ligand-induced homodimerization. However, structures of agonist and antagonist peptide complexes of EPOR, as well as an EPO-EPOR complex, have shown that the actual dimer configuration is c ...

    Erythropoietin receptor (EPOR) is thought to be activated by ligand-induced homodimerization. However, structures of agonist and antagonist peptide complexes of EPOR, as well as an EPO-EPOR complex, have shown that the actual dimer configuration is critical for the biological response and signal efficiency. The crystal structure of the extracellular domain of EPOR in its unliganded form at 2.4 angstrom resolution has revealed a dimer in which the individual membrane-spanning and intracellular domains would be too far apart to permit phosphorylation by JAK2. This unliganded EPOR dimer is formed from self-association of the same key binding site residues that interact with EPO-mimetic peptide and EPO ligands. This model for a preformed dimer on the cell surface provides insights into the organization, activation, and plasticity of recognition of hematopoietic cell surface receptors.


    Related Citations: 
    • Functional Mimicry of a Protein Hormone by a Peptide Agonist: The Epo Receptor Complex at 2.8 A
      Livnah, O.,Stura, E.A.,Johnson, D.L.,Middleton, S.A.,Mulcahy, L.S.,Wrighton, N.C.,Dower, W.J.,Jolliffe, L.K.,Wilson, I.A.
      (1996) Science 273: 464


    Organizational Affiliation

    Department of Molecular Biology and Skaggs Institute of Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (ERYTHROPOIETIN RECEPTOR)
A, B
213Homo sapiensMutation(s): 0 
Gene Names: EPOR
Find proteins for P19235 (Homo sapiens)
Go to Gene View: EPOR
Go to UniProtKB:  P19235
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.216 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 38.760α = 62.65
b = 55.680β = 88.31
c = 58.430γ = 74.97
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling
DENZOdata reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-01-07
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance