4BPC

Structure of the Catalytic Domain of Protein Tyrosine Phosphatase Sigma in the Sulfenic Acid Form


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.178 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the Catalytic Domain of Protein Tyrosine Phosphatase Sigma in the Sulfenic Acid Form

Jeon, T.J.Chien, P.N.Chun, H.J.Ryu, S.E.

(2013) Mol.Cells 36: 55

  • DOI: 10.1007/s10059-013-0033-x

  • PubMed Abstract: 
  • Protein tyrosine phosphatase sigma (PTPσ) plays a vital role in neural development. The extracellular domain of PTPσ binds to various proteoglycans, which control the activity of 2 intracellular PTP domains (D1 and D2). To understand the regulatory m ...

    Protein tyrosine phosphatase sigma (PTPσ) plays a vital role in neural development. The extracellular domain of PTPσ binds to various proteoglycans, which control the activity of 2 intracellular PTP domains (D1 and D2). To understand the regulatory mechanism of PTPσ, we carried out structural and biochemical analyses of PTPσ D1D2. In the crystal structure analysis of a mutant form of D1D2 of PTPσ, we unexpectedly found that the catalytic cysteine of D1 is oxidized to cysteine sulfenic acid, while that of D2 remained in its reduced form, suggesting that D1 is more sensitive to oxidation than D2. This finding contrasts previous observations on PTPα. The cysteine sulfenic acid of D1 was further confirmed by immunoblot and mass spectrometric analyses. The stabilization of the cysteine sulfenic acid in the active site of PTP suggests that the formation of cysteine sulfenic acid may function as a stable intermediate during the redox-regulation of PTPs.


    Organizational Affiliation

    Department of Bioengineering, College of Engineering, Hanyang University, Seoul, 133-070, Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RECEPTOR-TYPE TYROSINE-PROTEIN PHOSPHATASE S
A
582Homo sapiensGene Names: PTPRS
EC: 3.1.3.48
Find proteins for Q13332 (Homo sapiens)
Go to Gene View: PTPRS
Go to UniProtKB:  Q13332
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CSO
Query on CSO
A
L-PEPTIDE LINKINGC3 H7 N O3 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.178 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 94.672α = 90.00
b = 94.672β = 90.00
c = 123.423γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
REFMACrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-07-17
    Type: Initial release
  • Version 1.1: 2013-08-07
    Type: Database references
  • Version 1.2: 2015-09-23
    Type: Data collection