2OUC

Crystal structure of the MAP kinase binding domain of MKP5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.232 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the MAP kinase binding domain and the catalytic domain of human MKP5.

Tao, X.Tong, L.

(2007) Protein Sci. 16: 880-886

  • DOI: 10.1110/ps.062712807
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • MAP kinase phosphatases (MKPs) have crucial roles in regulating the signaling activity of MAP kinases and are potential targets for drug discovery against human diseases. These enzymes contain a catalytic domain (CD) as well as a binding domain (BD) ...

    MAP kinase phosphatases (MKPs) have crucial roles in regulating the signaling activity of MAP kinases and are potential targets for drug discovery against human diseases. These enzymes contain a catalytic domain (CD) as well as a binding domain (BD) that help recognize the target MAP kinase. We report here the crystal structures at up to 2.2 A resolution of the BD and CD of human MKP5 and compare them to the known structures from other MKPs. Dramatic structural differences are observed between the BD of MKP5 and that of MKP3 determined previously by NMR. In particular, the cluster of positively charged residues that is important for MAP kinase binding is located in completely different positions in the two structures, with a distance of 25 A between them. Moreover, this cluster is alpha-helical in MKP5, while it forms a loop followed by a beta-strand in MKP3. These large structural differences could be associated with the distinct substrate preferences of these phosphatases, but further studies are needed to confirm this. The CD of MKP5 is observed in an active conformation, and two loops in the active site have backbone shifts of up to 5 A relative to the inactive CDs from other MKPs.


    Organizational Affiliation

    Department of Biological Sciences, Columbia University, New York, New York 10027, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Dual specificity protein phosphatase 10
A, B
142Homo sapiensMutation(s): 0 
Gene Names: DUSP10 (MKP5)
EC: 3.1.3.16, 3.1.3.48
Find proteins for Q9Y6W6 (Homo sapiens)
Go to Gene View: DUSP10
Go to UniProtKB:  Q9Y6W6
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.232 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 49.296α = 90.00
b = 52.164β = 89.36
c = 62.267γ = 90.00
Software Package:
Software NamePurpose
SnBphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2007-02-10 
  • Released Date: 2007-08-07 
  • Deposition Author(s): Tao, X., Tong, L.

Revision History 

  • Version 1.0: 2007-08-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-10-18
    Type: Refinement description