4GF3

Structure of a SycH-YopH Chaperone-Effector Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.183 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Context-dependent protein folding of a virulence peptide in the bacterial and host environments: structure of an SycH-YopH chaperone-effector complex.

Vujanac, M.Stebbins, C.E.

(2013) Acta Crystallogr D Biol Crystallogr 69: 546-554

  • DOI: 10.1107/S0907444912051086
  • Primary Citation of Related Structures:  
    4GF3

  • PubMed Abstract: 
  • Yersinia pestis injects numerous bacterial proteins into host cells through an organic nanomachine called the type 3 secretion system. One such substrate is the tyrosine phosphatase YopH, which requires an interaction with a cognate chaperone in order to ...

    Yersinia pestis injects numerous bacterial proteins into host cells through an organic nanomachine called the type 3 secretion system. One such substrate is the tyrosine phosphatase YopH, which requires an interaction with a cognate chaperone in order to be effectively injected. Here, the first crystal structure of a SycH-YopH complex is reported, determined to 1.9 Å resolution. The structure reveals the presence of (i) a nonglobular polypeptide in YopH, (ii) a so-called β-motif in YopH and (iii) a conserved hydrophobic patch in SycH that recognizes the β-motif. Biochemical studies establish that the β-motif is critical to the stability of this complex. Finally, since previous work has shown that the N-terminal portion of YopH adopts a globular fold that is functional in the host cell, aspects of how this polypeptide adopts radically different folds in the host and in the bacterial environments are analysed.


    Organizational Affiliation

    Laboratory of Structural Microbiology, The Rockefeller University, New York, NY 10065, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Putative yopH targeting protein A141Yersinia pestisMutation(s): 0 
Gene Names: sycHYP_pCD87YPCD1.95cY0082G4D65_18630G4D67_19450GD372_22600
Find proteins for Q7BTX0 (Yersinia pestis)
Explore Q7BTX0 
Go to UniProtKB:  Q7BTX0
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Tyrosine-protein phosphatase yopH B43Yersinia enterocoliticaMutation(s): 0 
Gene Names: yopHyop51
EC: 3.1.3.48
Find proteins for P15273 (Yersinia enterocolitica)
Explore P15273 
Go to UniProtKB:  P15273
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.183 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.525α = 90
b = 70.525β = 90
c = 71.517γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-03-27
    Type: Initial release
  • Version 1.1: 2013-06-19
    Changes: Database references