4IZ5

Structure of the complex between ERK2 phosphomimetic mutant and PEA-15


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.19 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.243 
  • R-Value Observed: 0.245 

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Ligand Structure Quality Assessment 


This is version 1.2 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: https://doi.org/10.1038/ncomms2687
  • Primary Citation of Related Structures:  
    4IZ5, 4IZ7, 4IZA

  • 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 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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Mitogen-activated protein kinase 1
A, B, C, D
356Homo sapiensMutation(s): 1 
Gene Names: MAPK1ERK2PRKM1PRKM2
EC: 2.7.11.24
UniProt & NIH Common Fund Data Resources
Find proteins for P28482 (Homo sapiens)
Explore P28482 
Go to UniProtKB:  P28482
PHAROS:  P28482
GTEx:  ENSG00000100030 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP28482
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Astrocytic phosphoprotein PEA-15
E, F, G, H
133Homo sapiensMutation(s): 0 
Gene Names: PEA15
UniProt & NIH Common Fund Data Resources
Find proteins for Q15121 (Homo sapiens)
Explore Q15121 
Go to UniProtKB:  Q15121
PHAROS:  Q15121
GTEx:  ENSG00000162734 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ15121
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download Ideal Coordinates CCD File 
I [auth A],
N [auth B],
S [auth C],
X [auth D]
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
AA [auth D]
BA [auth D]
J [auth A]
K [auth A]
L [auth A]
AA [auth D],
BA [auth D],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
O [auth B],
P [auth B],
Q [auth B],
R [auth B],
T [auth C],
U [auth C],
V [auth C],
W [auth C],
Y [auth D],
Z [auth D]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.19 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.243 
  • R-Value Observed: 0.245 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 80.801α = 90
b = 149.129β = 90.41
c = 98.869γ = 90
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-04-10
    Type: Initial release
  • Version 1.1: 2013-04-24
    Changes: Database references
  • Version 1.2: 2024-02-28
    Changes: Data collection, Database references, Derived calculations