Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 34.29 kDa 
• Atom Count: 2207 
• Modelled Residue Count: 280 
• Deposited Residue Count: 299 
• Unique protein chains: 1

1GWZ

CRYSTAL STRUCTURE OF THE CATALYTIC DOMAIN OF THE PROTEIN TYROSINE PHOSPHATASE SHP-1

• PDB DOI: 10.2210/pdb1GWZ/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1998-08-22 Released: 1999-08-22 
• Deposition Author(s): Yang, J., Liang, X., Niu, T., Meng, W., Zhao, Z., Zhou, G.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.293 
• R-Value Work: 0.209 
• R-Value Observed: 0.209 

Literature

Crystal structure of the catalytic domain of protein-tyrosine phosphatase SHP-1.

Yang, J., Liang, X., Niu, T., Meng, W., Zhao, Z., Zhou, G.W.

(1998) J Biol Chem 273: 28199-28207

• PubMed: 9774441 
• DOI: 10.1074/jbc.273.43.28199
• Primary Citation of Related Structures:  
  1GWZ


• PubMed Abstract: 
  

The crystal structures of the protein-tyrosine phosphatase SHP-1 catalytic domain and the complex it forms with the substrate analogue tungstate have been determined and refined to crystallographic R values of 0.209 at 2.5 A resolution and 0.207 at 2.8 A resolution, respectively. Despite low sequence similarity, the catalytic domain of SHP-1 shows high similarity in secondary and tertiary structures with other protein-tyrosine phosphatases (PTPs). In contrast to the conformational changes observed in the crystal structures of PTP1B and Yersinia PTP, the WPD loop (Trp419-Pro428) in the catalytic domain of SHP-1 moves away from the substrate binding pocket after binding the tungstate ion. Sequence alignment and structural analysis suggest that the residues in the WPD loop, especially the amino acid following Asp421, are critical for the movement of WPD loop on binding substrates and the specific activity of protein-tyrosine phosphatases. Our mutagenesis and kinetic measurements have supported this hypothesis.

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Related Citations: 

• Expression, Purification, and Crystallization of the Catalytic Domain of Protein Tyrosine Phosphatase Shp-1
  Liang, X., Meng, W., Niu, T., Zhao, Z., Zhou, G.W.
  (1997) J Struct Biol 120: 201

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Organizational Affiliation: 

Program in Molecular Medicine, University of Massachusetts Medical Center, Worcester, Massachusetts 01605, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
SHP-1	A	299	Homo sapiens	Mutation(s): 0  Gene Names: PTPN6, HCP, PTP1C EC: 3.1.3.48
UniProt & NIH Common Fund Data Resources
Find proteins for P29350 (Homo sapiens) Explore P29350  Go to UniProtKB:  P29350
PHAROS:  P29350

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.293 
• R-Value Work: 0.209 
• R-Value Observed: 0.209 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 41.82	α = 90
b = 87.78	β = 117.4
c = 43	γ = 90

Software Package:

Software Name	Purpose
AMoRE	phasing
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1998-08-22 
• Released Date: 1999-08-22 
Deposition Author(s): Yang, J., Liang, X., Niu, T., Meng, W., Zhao, Z., Zhou, G.W.

Revision History  

• Version 1.0: 1999-08-22
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance