1EBA

COMPLEX BETWEEN THE EXTRACELLULAR DOMAIN OF ERYTHROPOIETIN (EPO) RECEPTOR [EBP] AND AN INACTIVE PEPTIDE [EMP33] CONTAINS 3,5-DIBROMOTYROSINE IN POSITION 4 (DENOTED DBY)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.299 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

An antagonist peptide-EPO receptor complex suggests that receptor dimerization is not sufficient for activation.

Livnah, O.Johnson, D.L.Stura, E.A.Farrell, F.X.Barbone, F.P.You, Y.Liu, K.D.Goldsmith, M.A.He, W.Krause, C.D.Pestka, S.Jolliffe, L.K.Wilson, I.A.

(1998) Nat.Struct.Mol.Biol. 5: 993-1004

  • DOI: 10.1038/2965

  • PubMed Abstract: 
  • Dimerization of the erythropoietin (EPO) receptor (EPOR), in the presence of either natural (EPO) or synthetic (EPO-mimetic peptides, EMPs) ligands is the principal extracellular event that leads to receptor activation. The crystal structure of the e ...

    Dimerization of the erythropoietin (EPO) receptor (EPOR), in the presence of either natural (EPO) or synthetic (EPO-mimetic peptides, EMPs) ligands is the principal extracellular event that leads to receptor activation. The crystal structure of the extracellular domain of EPOR bound to an inactive (antagonist) peptide at 2.7 A resolution has unexpectedly revealed that dimerization still occurs, but the orientation between receptor molecules is altered relative to active (agonist) peptide complexes. Comparison of the biological properties of agonist and antagonist EMPs with EPO suggests that the extracellular domain orientation is tightly coupled to the cytoplasmic signaling events and, hence, provides valuable new insights into the design of synthetic ligands for EPOR and other cytokine 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 the Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, California 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (ERYTHROPOIETIN RECEPTOR)
A, B
215Homo sapiensMutation(s): 0 
Gene Names: EPOR
Find proteins for P19235 (Homo sapiens)
Go to Gene View: EPOR
Go to UniProtKB:  P19235
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (EPO MIMETICS PEPTIDE 33)
C, D
20N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
DBY
Query on DBY
C, D
L-PEPTIDE LINKINGC9 H9 Br2 N O3TYR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.299 
  • R-Value Work: 0.200 
  • Space Group: P 2 21 21
Unit Cell:
Length (Å)Angle (°)
a = 58.890α = 90.00
b = 75.009β = 90.00
c = 130.527γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
DENZOdata reduction
X-PLORrefinement
SCALEPACKdata scaling
CCP4phasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-11-11
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance