1XXP

Yersinia YopH (residues 163-468) C403S binds phosphotyrosyl peptide at two sites


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.181 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Two substrate-targeting sites in the Yersinia protein tyrosine phosphatase co-operate to promote bacterial virulence

Ivanov, M.I.Stuckey, J.A.Schubert, H.L.Saper, M.A.Bliska, J.B.

(2005) Mol Microbiol 55: 1346-1356

  • DOI: 10.1111/j.1365-2958.2005.04477.x
  • Primary Citation of Related Structures:  
    1XXP, 1XXV

  • PubMed Abstract: 
  • YopH is a protein tyrosine phosphatase and an essential virulence determinant of the pathogenic bacterium Yersinia. Yersinia delivers YopH into infected host cells using a type III secretion mechanism. YopH dephosphorylates several focal adhesion proteins including p130Cas in human epithelial cells, resulting in disruption of focal adhesions and cell detachment from the extracellular matrix ...

    YopH is a protein tyrosine phosphatase and an essential virulence determinant of the pathogenic bacterium Yersinia. Yersinia delivers YopH into infected host cells using a type III secretion mechanism. YopH dephosphorylates several focal adhesion proteins including p130Cas in human epithelial cells, resulting in disruption of focal adhesions and cell detachment from the extracellular matrix. How the C-terminal protein tyrosine phosphatase domain of YopH targets specific substrates such as p130Cas in the complex milieu of the host cell has not been fully elucidated. An N-terminal non-catalytic domain of YopH binds p130Cas in a phosphotyrosine-dependent manner and functions as a novel substrate-targeting site. The structure of the YopH protein tyrosine phosphatase domain bound to a model phosphopeptide substrate was solved and the resulting structure revealed a second substrate-targeting site ('site 2') within the catalytic domain. Site 2 binds to p130Cas in a phosphotyrosine-dependent manner, and co-operates with the N-terminal domain ('site 1') to promote efficient recognition of p130Cas by YopH in epithelial cells. The identification of two substrate-targeting sites in YopH that co-operate to promote epithelial cell detachment and bacterial virulence reinforces the importance of protein-protein interactions for determining protein tyrosine phosphatase specificity in vivo, and highlights the sophisticated nature of microbial pathogenicity factors.


    Organizational Affiliation

    Department of Molecular Genetics and Microbiology and Center for Infectious Diseases, State University of New York at Stony Brook, Stony Brook, NY 11794-5222, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein-tyrosine phosphatase yopHA, B306Yersinia enterocoliticaMutation(s): 2 
Gene Names: yopHyop51
EC: 3.1.3.48
UniProt
Find proteins for P15273 (Yersinia enterocolitica)
Explore P15273 
Go to UniProtKB:  P15273
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Hexapeptide ASP-ALA-ASP-GLU-PTR-CLEC, D, E, F8N/AMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
C, D, E, FL-PEPTIDE LINKINGC9 H12 N O6 PTYR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.181 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.17α = 111.8
b = 71.09β = 90
c = 47.86γ = 109.7
Software Package:
Software NamePurpose
SDMSdata collection
SDMSdata reduction
X-PLORmodel building
CNSrefinement
SDMSdata scaling
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-03-22
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance