2ONL

Crystal Structure of the p38a-MAPKAP kinase 2 Heterodimer


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.00 Å
  • R-Value Free: 0.331 
  • R-Value Work: 0.314 
  • R-Value Observed: 0.315 

Starting Models: experimental
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This is version 1.4 of the entry. See complete history


Literature

Crystal structure of the P38alpha-MAPKAP kinase 2 heterodimer.

ter Haar, E.Prabakhar, P.Liu, X.Lepre, C.

(2007) J Biol Chem 282: 9733-9739

  • DOI: https://doi.org/10.1074/jbc.M611165200
  • Primary Citation of Related Structures:  
    2OKR, 2ONL

  • PubMed Abstract: 

    The p38 signaling pathway is activated in response to cell stress and induces production of proinflammatory cytokines. P38alpha is phosphorylated and activated in response to cell stress by MKK3 and MKK6 and in turn phosphorylates a number of substrates, including MAPKAP kinase 2 (MK2). We have determined the crystal structure of the unphosphorylated p38alpha-MK2 heterodimer. The C-terminal regulatory domain of MK2 binds in the docking groove of p38alpha, and the ATP-binding sites of both kinases are at the heterodimer interface. The conformation suggests an extra mechanism in addition to the regulation of the p38alpha and MK2 phosphorylation states that prevents phosphorylation of substrates in the absence of cell stress. Addition of constitutively active MKK6-DD results in rapid phosphorylation of the p38alpha-MK2 heterodimer.


  • Organizational Affiliation

    Vertex Pharmaceuticals Incorporated, Cambridge, Massachusetts 02139. Electronic address: ernst_terhaar@vrtx.com.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Mitogen-activated protein kinase 14A,
C [auth B]
366Homo sapiensMutation(s): 0 
Gene Names: MAPK14CSBPCSBP1CSBP2MXI2
EC: 2.7.11.24
UniProt & NIH Common Fund Data Resources
Find proteins for Q16539 (Homo sapiens)
Explore Q16539 
Go to UniProtKB:  Q16539
PHAROS:  Q16539
GTEx:  ENSG00000112062 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ16539
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
MAP kinase-activated protein kinase 2B [auth C],
D
406Homo sapiensMutation(s): 0 
Gene Names: MAPKAPK2
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for P49137 (Homo sapiens)
Explore P49137 
Go to UniProtKB:  P49137
PHAROS:  P49137
GTEx:  ENSG00000162889 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP49137
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.00 Å
  • R-Value Free: 0.331 
  • R-Value Work: 0.314 
  • R-Value Observed: 0.315 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 103.15α = 90
b = 103.15β = 90
c = 231.55γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
d*TREKdata reduction
CNXphasing
BUSTER-TNTrefinement

Structure Validation

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Entry History 

Deposition Data

  • Released Date: 2007-02-06 
  • Deposition Author(s): Ter Haar, E.

Revision History  (Full details and data files)

  • Version 1.0: 2007-02-06
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-18
    Changes: Refinement description
  • Version 1.4: 2023-08-30
    Changes: Data collection, Database references, Refinement description