1NQL

Structure of the extracellular domain of human epidermal growth factor (EGF) receptor in an inactive (low pH) complex with EGF.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.241 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

EGF activates its receptor by removing interactions that auto-inhibit ectodomain dimerization

Ferguson, K.M.Berger, M.B.Mendrola, J.M.Cho, H.Leahy, D.J.Lemmon, M.A.

(2003) Mol.Cell 11: 507-517


  • PubMed Abstract: 
  • Epidermal growth factor (EGF) receptor is the prototype of the ErbB (HER) family receptor tyrosine kinases (RTKs), which regulate cell growth and differentiation and are implicated in many human cancers. EGF activates its receptor by inducing dimeriz ...

    Epidermal growth factor (EGF) receptor is the prototype of the ErbB (HER) family receptor tyrosine kinases (RTKs), which regulate cell growth and differentiation and are implicated in many human cancers. EGF activates its receptor by inducing dimerization of the 621 amino acid EGF receptor extracellular region. We describe the 2.8 A resolution crystal structure of this entire extracellular region (sEGFR) in an unactivated state. The structure reveals an autoinhibited configuration, where the dimerization interface recently identified in activated sEGFR structures is completely occluded by intramolecular interactions. To activate the receptor, EGF binding must promote a large domain rearrangement that exposes this dimerization interface. This contrasts starkly with other RTK activation mechanisms and suggests new approaches for designing ErbB receptor antagonists.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA. fertuso2@mail.med.upenn.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
epidermal growth factor receptor
A
624Homo sapiensMutation(s): 0 
Gene Names: EGFR (ERBB, ERBB1, HER1)
EC: 2.7.10.1
Find proteins for P00533 (Homo sapiens)
Go to Gene View: EGFR
Go to UniProtKB:  P00533
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
epidermal growth factor
B
53Homo sapiensMutation(s): 0 
Gene Names: EGF
Find proteins for P01133 (Homo sapiens)
Go to Gene View: EGF
Go to UniProtKB:  P01133
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BMA
Query on BMA

Download SDF File 
Download CCD File 
A
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.241 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 119.170α = 90.00
b = 103.660β = 119.27
c = 101.490γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
CCP4data scaling
REFMACrefinement
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-03-11
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance