2ESB

Crystal structure of human DUSP18


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.159 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of human DSP18, a member of the dual-specificity protein tyrosine phosphatase family.

Jeong, D.G.Cho, Y.H.Yoon, T.S.Kim, J.H.Son, J.H.Ryu, S.E.Kim, S.J.

(2006) Acta Crystallogr.,Sect.D 62: 582-588

  • DOI: 10.1107/S0907444906010109

  • PubMed Abstract: 
  • The human dual-specificity protein phosphatase 18 (DSP18) gene and its protein product have recently been characterized. Like most DSPs, DSP18 displays dephosphorylating activity towards both phosphotyrosine and phosphothreonine residues. However, DS ...

    The human dual-specificity protein phosphatase 18 (DSP18) gene and its protein product have recently been characterized. Like most DSPs, DSP18 displays dephosphorylating activity towards both phosphotyrosine and phosphothreonine residues. However, DSP18 is distinct from other known DSPs in terms of the existence of approximately 30 residues at the C-terminus of the catalytic domain and an unusual optimum activity profile at 328 K. The crystal structure of human DSP18 has been determined at 2.0 A resolution. The catalytic domain of DSP18 adopts a fold similar to that known for other DSP structures. Although good alignments are found with other DSPs, substantial differences are also found in the regions surrounding the active site, suggesting that DSP18 constitutes a unique structure with a distinct substrate specificity. Furthermore, the residues at the C-terminus fold into two antiparallel beta-strands and participate in extensive interactions with the catalytic domain, explaining the thermostability of DSP18.


    Organizational Affiliation

    Systemic Proteomics Research Center, Korea Research Institute of Bioscience and Biotechnology, 52 Eoeun-Dong, Yuseong-Gu, Daejeon 305-333, South Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Dual specificity protein phosphatase 18
A
188Homo sapiensMutation(s): 0 
Gene Names: DUSP18 (LMWDSP20)
EC: 3.1.3.16, 3.1.3.48
Find proteins for Q8NEJ0 (Homo sapiens)
Go to Gene View: DUSP18
Go to UniProtKB:  Q8NEJ0
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EPE
Query on EPE

Download SDF File 
Download CCD File 
A
4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
HEPES
C8 H18 N2 O4 S
JKMHFZQWWAIEOD-UHFFFAOYSA-N
 Ligand Interaction
ACT
Query on ACT

Download SDF File 
Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.159 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 35.740α = 90.00
b = 96.083β = 90.00
c = 116.654γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
HKL-2000data collection
HKL-2000data reduction
EPMRphasing
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-06-06
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance