5BUG

Crystal structure of human phosphatase PTEN oxidized by H2O2

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.177 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Redox Modulation of PTEN Phosphatase Activity by Hydrogen Peroxide and Bisperoxidovanadium Complexes.

Lee, C.U., Hahne, G., Hanske, J., Bange, T., Bier, D., Rademacher, C., Hennig, S., Grossmann, T.N.

(2015) Angew Chem Int Ed Engl 54: 13796-13800

  • DOI: 10.1002/anie.201506338
  • Primary Citation of Related Structures:  
    5BUG, 5BZX, 5BZZ

  • PubMed Abstract: 

    • PTEN is a dual-specificity protein tyrosine phosphatase. As one of the central tumor suppressors, a thorough regulation of its activity is essential for proper cellular homeostasis. The precise implications of PTEN inhibition by reactive oxygen species (e ...

    PTEN is a dual-specificity protein tyrosine phosphatase. As one of the central tumor suppressors, a thorough regulation of its activity is essential for proper cellular homeostasis. The precise implications of PTEN inhibition by reactive oxygen species (e.g. H2 O2 ) and the subsequent structural consequences remain elusive. To study the effects of PTEN inhibition, bisperoxidovanadium (bpV) complexes serve as important tools with the potential for the treatment of nerve injury or cardiac ischemia. However, their mode of action is unknown, hampering further optimization and preventing therapeutic applications. Based on protein crystallography, mass spectrometry, and NMR spectroscopy, we elucidate the molecular basis of PTEN inhibition by H2O2 and bpV complexes. We show that both molecules inhibit PTEN via oxidative mechanisms resulting in the formation of the same intramolecular disulfide, therefore enabling the reactivation of PTEN under reductive conditions.

    Organizational Affiliation: 

    VU University Amsterdam, Department of Chemistry & Pharmaceutical Sciences, De Boelelaan 1083, 1081 HV, Amsterdam (The Netherlands). tom.grossmann@cgc.mpg.de.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTENA, B, C, D314Homo sapiensMutation(s): 0 
Gene Names: PTEN, MMAC1, TEP1
EC: 3.1.3.16 (PDB Primary Data), 3.1.3.48 (PDB Primary Data), 3.1.3.67 (PDB Primary Data)
Find proteins for P60484 (Homo sapiens)
Explore P60484 
Go to UniProtKB:  P60484
NIH Common Fund Data Resources
PHAROS  P60484
GTEx  ENSG00000171862
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.177 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 206.87α = 90
b = 206.83β = 90
c = 87.43γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XSCALEdata scaling
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report


View more in-depth experimental data

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
DFG, Emmy Noether programGermanyGR3592/2-1

Revision History 

  • Version 1.0: 2015-10-07
    Type: Initial release
  • Version 1.1: 2015-11-11
    Changes: Database references