2OZA

Structure of p38alpha complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.239 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Molecular basis of MAPK-activated protein kinase 2:p38 assembly

White, A.Pargellis, C.A.Studts, J.M.Werneburg, B.G.Farmer II, B.T.

(2007) Proc.Natl.Acad.Sci.Usa 104: 6353-6358

  • DOI: 10.1073/pnas.0701679104

  • PubMed Abstract: 
  • p38 MAPK and MAPK-activated protein kinase 2 (MK2) are key components of signaling pathways leading to many cellular responses, notably the proinflammatory cytokine production. The physical association of p38alpha isoform and MK2 is believed to be ph ...

    p38 MAPK and MAPK-activated protein kinase 2 (MK2) are key components of signaling pathways leading to many cellular responses, notably the proinflammatory cytokine production. The physical association of p38alpha isoform and MK2 is believed to be physiologically important for this signaling. We report the 2.7-A resolution crystal structure of the unphosphorylated complex between p38alpha and MK2. These protein kinases bind "head-to-head," present their respective active sites on approximately the same side of the heterodimer, and form extensive intermolecular interactions. Among these interactions, the MK2 Ile-366-Ala-390, which includes the bipartite nuclear localization signal, binds to the p38alpha-docking region. This binding supports the involvement of noncatalytic regions to the tight binding of the MK2:p38alpha binary assembly. The MK2 residues 345-365, containing the nuclear export signal, block access to the p38alpha active site. Some regulatory phosphorylation regions of both protein kinases engage in multiple interactions with one another in this complex. This structure gives new insights into the regulation of the protein kinases p38alpha and MK2, aids in the better understanding of their known cellular and biochemical studies, and provides a basis for understanding other regulatory protein-protein interactions involving signal transduction proteins.


    Organizational Affiliation

    Department of Medicinal Chemistry, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT 06877, USA. awhite@rdg.hoehringer-ingelheim.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MAP kinase-activated protein kinase 2
A
356Homo sapiensMutation(s): 0 
Gene Names: MAPKAPK2
EC: 2.7.11.1
Find proteins for P49137 (Homo sapiens)
Go to Gene View: MAPKAPK2
Go to UniProtKB:  P49137
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Mitogen-activated protein kinase 14
B
366Mus musculusMutation(s): 0 
Gene Names: Mapk14 (Crk1, Csbp1, Csbp2)
EC: 2.7.11.24
Find proteins for P47811 (Mus musculus)
Go to UniProtKB:  P47811
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.239 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 83.310α = 90.00
b = 83.310β = 90.00
c = 231.490γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
PDB_EXTRACTdata extraction
CNXrefinement
d*TREKdata reduction
d*TREKdata processing
d*TREKdata scaling
SGX-CATdata collection
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-04-03
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance