Crystal structure of the core domain of Yersinia pestis virulence factor YopR

Experimental Data Snapshot

  • Resolution: 1.50 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.205 

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Crystal structure of the protease-resistant core domain of Yersinia pestis virulence factor YopR.

Schubot, F.D.Cherry, S.Austin, B.P.Tropea, J.E.Waugh, D.S.

(2005) Protein Sci 14: 1679-1683

  • DOI: https://doi.org/10.1110/ps.051446405
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Yersinia pestis, the causative agent of the plague, employs a type III secretion system (T3SS) to secrete and translocate virulence factors into to the cytoplasm of mammalian host cells. One of the secreted virulence factors is YopR. Little is known about the function of YopR other than that it is secreted into the extracellular milieu during the early stages of infection and that it contributes to virulence. Hoping to gain some insight into the function of YopR, we determined the crystal structure of its protease-resistant core domain, which consists of residues 38-149 out of 165 amino acids. The core domain is composed of five alpha-helices that display unexpected structural similarity with one domain of YopN, a central regulator of type III secretion in Y. pestis. This finding raises the possibility that YopR may play a role in the regulation of type III secretion.

  • Organizational Affiliation

    Macromolecular Crystallography Laboratory, Center for Cancer Research, National Cancer Institute at Frederick, P.O. Box B, Frederick, MD 21702-1201, USA. waughd@ncifcrf.gov

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Yop proteins translocation protein H112Yersinia pestisMutation(s): 0 
Gene Names: yscHlcrPYPCD1.57y5021y0024YP_pCD26
Find proteins for P68590 (Yersinia pestis)
Explore P68590 
Go to UniProtKB:  P68590
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP68590
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.50 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.205 
  • Space Group: P 41 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.662α = 90
b = 85.662β = 90
c = 85.662γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-06-07
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance