4KA3

Structure of MAP kinase in complex with a docking peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.227 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Crystal structure of the p38 alpha MAP kinase in complex with a docking peptide from TAB1

Xin, F.J.Wu, J.W.

(2013) Sci China Life Sci 56: 653-660

  • DOI: 10.1007/s11427-013-4494-0
  • Primary Citation of Related Structures:  
    4KA3

  • PubMed Abstract: 
  • The mitogen-activated protein kinase (MAPK) p38α is a key regulator in many cellular processes, whose activity is tightly regulated by upstream kinases, phosphatases and other regulators. Transforming growth factor-β activated kinase 1 (TAK1) is an upstream kinase in p38α signaling, and its full activation requires a specific activator, the TAK1-binding protein (TAB1) ...

    The mitogen-activated protein kinase (MAPK) p38α is a key regulator in many cellular processes, whose activity is tightly regulated by upstream kinases, phosphatases and other regulators. Transforming growth factor-β activated kinase 1 (TAK1) is an upstream kinase in p38α signaling, and its full activation requires a specific activator, the TAK1-binding protein (TAB1). TAB1 was also shown to be an inducer of p38α's autophosphorylation and/or a substrate driving the feedback control of p38α signaling. Here we determined the complex structure of the unphosphorylated p38α and a docking peptide of TAB1, which shows that the TAB1 peptide binds to the classical MAPK docking groove and induces long-range conformational changes on p38α. Our structural and biochemical analyses suggest that TAB1 is a reasonable substrate of p38α, yet the interaction between the docking peptide and p38α may not be sufficient to trigger trans-autophosphorylation of p38α.


    Organizational Affiliation

    Tsinghua-Peking Center for Life Sciences and MOE Key Laboratory of Protein Science, School of Life Sciences, Tsinghua University, Beijing 100084, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Mitogen-activated protein kinase 14 A360Mus musculusMutation(s): 0 
Gene Names: Mapk14Crk1Csbp1Csbp2
EC: 2.7.11.24
Find proteins for P47811 (Mus musculus)
Explore P47811 
Go to UniProtKB:  P47811
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
TGF-beta-activated kinase 1 and MAP3K7-binding protein 1 B29Homo sapiensMutation(s): 0 
Gene Names: TAB1MAP3K7IP1
Find proteins for Q15750 (Homo sapiens)
Explore Q15750 
Go to UniProtKB:  Q15750
NIH Common Fund Data Resources
PHAROS:  Q15750
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.227 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.148α = 90
b = 82.148β = 90
c = 122.556γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2013-04-22 
  • Released Date: 2013-06-26 
  • Deposition Author(s): Xin, F.J., Wu, J.W.

Revision History  (Full details and data files)

  • Version 1.0: 2013-06-26
    Type: Initial release
  • Version 1.1: 2013-12-18
    Changes: Database references