4GF3

Structure of a SycH-YopH Chaperone-Effector Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.180 

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.,Sect.D 69: 546-554

  • DOI: 10.1107/S0907444912051086

  • 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 orde ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Putative yopH targeting protein
A
141Yersinia pestisMutation(s): 0 
Gene Names: sycH
Find proteins for Q7BTX0 (Yersinia pestis)
Go to UniProtKB:  Q7BTX0
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein phosphatase yopH
B
43Yersinia enterocoliticaMutation(s): 0 
Gene Names: yopH (yop51)
EC: 3.1.3.48
Find proteins for P15273 (Yersinia enterocolitica)
Go to UniProtKB:  P15273
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.180 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 70.525α = 90.00
b = 70.525β = 90.00
c = 71.517γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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