3U7U

Crystal structure of extracellular region of human epidermal growth factor receptor 4 in complex with neuregulin-1 beta


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.03 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

A single ligand is sufficient to activate EGFR dimers.

Liu, P.Cleveland, T.E.Bouyain, S.Byrne, P.O.Longo, P.A.Leahy, D.J.

(2012) Proc.Natl.Acad.Sci.USA 109: 10861-10866

  • DOI: 10.1073/pnas.1201114109

  • PubMed Abstract: 
  • Crystal structures of human epidermal growth factor receptor (EGFR) with bound ligand revealed symmetric, doubly ligated receptor dimers thought to represent physiologically active states. Such complexes fail to rationalize negative cooperativity of ...

    Crystal structures of human epidermal growth factor receptor (EGFR) with bound ligand revealed symmetric, doubly ligated receptor dimers thought to represent physiologically active states. Such complexes fail to rationalize negative cooperativity of epidermal growth factor (EGF) binding to EGFR and the behavior of the ligandless EGFR homolog ErbB2/HER2, however. We report cell-based assays that provide evidence for active, singly ligated dimers of human EGFR and its homolog, ErbB4/HER4. We also report crystal structures of the ErbB4/HER4 extracellular region complexed with its ligand Neuregulin-1β that resolve two types of ErbB dimer when compared to EGFR:Ligand complexes. One type resembles the recently reported asymmetric dimer of Drosophila EGFR with a single high-affinity ligand bound and provides a model for singly ligated human ErbB dimers. These results unify models of vertebrate and invertebrate EGFR/ErbB signaling, imply that the tethered conformation of unliganded ErbBs evolved to prevent crosstalk among ErbBs, and establish a molecular basis for both negative cooperativity of ligand binding to vertebrate ErbBs and the absence of active ErbB2/HER2 homodimers in normal conditions.


    Organizational Affiliation

    Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, 725 N. Wolfe Street, Baltimore, MD 21205, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Receptor tyrosine-protein kinase erbB-4
A, B, C, D, E, F
615Homo sapiensMutation(s): 0 
Gene Names: ERBB4 (HER4)
EC: 2.7.10.1
Find proteins for Q15303 (Homo sapiens)
Go to Gene View: ERBB4
Go to UniProtKB:  Q15303
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Neuregulin 1
G, H, I, J, K, L
55Homo sapiensMutation(s): 0 
Gene Names: NRG1 (GGF, HGL, HRGA, NDF, SMDF)
Find proteins for Q02297 (Homo sapiens)
Go to Gene View: NRG1
Go to UniProtKB:  Q02297
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.03 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.190 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 85.730α = 90.00
b = 223.510β = 99.72
c = 146.920γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
JBluIce-EPICSdata collection
MOLREPphasing
BUSTER-TNTrefinement
DENZOdata reduction
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-08-29
    Type: Initial release
  • Version 1.1: 2017-11-08
    Type: Refinement description