3SR9

Crystal structure of mouse PTPsigma


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.233 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structural insights into the homology and differences between mouse protein tyrosine phosphatase-sigma and human protein tyrosine phosphatase-sigma

Hou, L.Wang, J.Zhou, Y.Li, J.Zang, Y.Li, J.

(2011) Acta Biochim.Biophys.Sin. 43: 977-988

  • DOI: 10.1093/abbs/gmr095

  • PubMed Abstract: 
  • Protein tyrosine phosphatases PTP-sigma (PTPσ) plays an important role in the development of the nervous system and nerve regeneration. Although cumulative studies about the function of PTPσ have been reported, yet limited data have been reported abo ...

    Protein tyrosine phosphatases PTP-sigma (PTPσ) plays an important role in the development of the nervous system and nerve regeneration. Although cumulative studies about the function of PTPσ have been reported, yet limited data have been reported about the crystal structure and in vitro activity of mouse PTPσ. Here we report the crystal structure of mouse PTPσ tandem phosphatase domains at 2.4 Å resolution. Then we compared the crystal structure of mouse PTPσ with human PTPσ and found that they are very similar, superimposing with a root mean square deviation of 0.45 Å for 517 equivalent Cα atoms. But some residues in mouse PTPσ form loops while corresponding residues in human PTPσ form β-sheets or α-helices. Furthermore, we also compared in vitro activities of mouse PTPσ with human PTPσ and found that mouse PTPσ has 25-fold higher specific activity than human PTPσ does toward O-methyl fluorescein phosphate (OMFP) as the substrate. However, there is no significant activity difference between the mouse and the human enzyme detected with p-nitrophenylphosphate (pNPP) as the substrate. Mouse PTPσ and human PTPσ have different substrate specificities toward OMFP and pNPP as substrates. This work gives clues for further study of PTPσ.


    Organizational Affiliation

    School of Life Science, East China Normal University, Shanghai, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Receptor-type tyrosine-protein phosphatase S
A
583Mus musculusMutation(s): 0 
Gene Names: Ptprs
EC: 3.1.3.48
Find proteins for B0V2N1 (Mus musculus)
Go to UniProtKB:  B0V2N1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.233 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 94.653α = 90.00
b = 94.653β = 90.00
c = 124.201γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-05-30
    Type: Initial release