4IZA

Structure of Dually Phosphorylated ERK2 bound to the PEA-15 Death Effector Domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.93 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of ERK2 bound to PEA-15 reveals a mechanism for rapid release of activated MAPK.

Mace, P.D.Wallez, Y.Egger, M.F.Dobaczewska, M.K.Robinson, H.Pasquale, E.B.Riedl, S.J.

(2013) Nat Commun 4: 1681-1681

  • DOI: 10.1038/ncomms2687
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • ERK1/2 kinases are the principal effectors of a central signalling cascade that converts extracellular stimuli into cell proliferation and migration responses and, when deregulated, can promote cell oncogenic transformation. The scaffolding protein P ...

    ERK1/2 kinases are the principal effectors of a central signalling cascade that converts extracellular stimuli into cell proliferation and migration responses and, when deregulated, can promote cell oncogenic transformation. The scaffolding protein PEA-15 is a death effector domain protein that directly interacts with ERK1/2 and affects ERK1/2 subcellular localization and phosphorylation. Here, to understand this ERK1/2 signalling complex, we have solved the crystal structures of PEA-15 bound to three different ERK2 phospho-conformers. The structures reveal that PEA-15 uses a bipartite binding mode, occupying two key docking sites of ERK2. Remarkably, PEA-15 can efficiently bind the ERK2 activation loop in the critical Thr-X-Tyr region in different phosphorylation states. PEA-15 binding triggers an extended allosteric conduit in dually phosphorylated ERK2, disrupting key features of active ERK2. At the same time PEA-15 binding protects ERK2 from dephosphorylation, thus setting the stage for immediate ERK activity upon its release from the PEA-15 inhibitory complex.


    Organizational Affiliation

    Program in Apoptosis and Cell Death Research, Cancer Center, Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, California 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mitogen-activated protein kinase 1
A, C
356Homo sapiensMutation(s): 0 
Gene Names: MAPK1 (ERK2, PRKM1, PRKM2)
EC: 2.7.11.24
Find proteins for P28482 (Homo sapiens)
Go to Gene View: MAPK1
Go to UniProtKB:  P28482
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Astrocytic phosphoprotein PEA-15
B
97Homo sapiensMutation(s): 0 
Gene Names: PEA15
Find proteins for Q15121 (Homo sapiens)
Go to Gene View: PEA15
Go to UniProtKB:  Q15121
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
A, C
L-PEPTIDE LINKINGC9 H12 N O6 PTYR
TPO
Query on TPO
A, C
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.93 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.197 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 73.758α = 90.00
b = 204.024β = 90.00
c = 61.135γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-04-10
    Type: Initial release
  • Version 1.1: 2013-04-24
    Type: Database references