4IZ7

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

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.187 

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:  
    4IZA, 4IZ5, 4IZ7

  • 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
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Mitogen-activated protein kinase 1A, C356Homo sapiensMutation(s): 0 
Gene Names: MAPK1, ERK2, PRKM1, PRKM2
EC: 2.7.11.24
Find proteins for P28482 (Homo sapiens)
Explore P28482 
Go to UniProtKB:  P28482
NIH Common Fund Data Resources
PHAROS  P28482
GTEx  ENSG00000100030
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Astrocytic phosphoprotein PEA-15B97Cricetulus griseusMutation(s): 0 
Gene Names: PEA15
Find proteins for Q9Z297 (Cricetulus griseus)
Explore Q9Z297 
Go to UniProtKB:  Q9Z297
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.187 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.478α = 90
b = 205.334β = 90
c = 57.746γ = 90
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

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