7Q6M

Structure of WrbA from Yersinia pseudotuberculosis in P1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.04 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.176 

wwPDB Validation   3D Report Full Report


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Literature

Crystal structures of WrbA, a spurious target of the salicylidene acylhydrazide inhibitors of type III secretion in Gram-negative pathogens, and verification of improved specificity of next-generation compounds.

Zambelloni, R.Beckham, K.S.H.Wu, H.J.Elofsson, M.Marquez, R.Gabrielsen, M.Roe, A.J.

(2022) Microbiology (Reading) 168

  • DOI: 10.1099/mic.0.001211
  • Primary Citation of Related Structures:  
    7Q6M, 7Q6N, 7Q6O

  • PubMed Abstract: 
  • The enterohemorrhagic Escherichia coli pathotype is responsible for severe and dangerous infections in humans. Establishment of the infection requires colonization of the gastro-intestinal tract, which is dependent on the Type III Secretion System ...

    The enterohemorrhagic Escherichia coli pathotype is responsible for severe and dangerous infections in humans. Establishment of the infection requires colonization of the gastro-intestinal tract, which is dependent on the Type III Secretion System. The Type III Secretion System (T3SS) allows attachment of the pathogen to the mammalian host cell and cytoskeletal rearrangements within the host cell. Blocking the functionality of the T3SS is likely to reduce colonization and therefore limit the disease. This route offers an alternative to antibiotics, and problems with the development of antibiotics resistance. Salicylidene acylhydrazides have been shown to have an inhibitory effect on the T3SS in several pathogens. However, the main target of these compounds is still unclear. Past work has identified a number of putative protein targets of these compounds, one of which being WrbA. Whilst WrbA is considered an off-target interaction, this study presents the effect of the salicylidne acylhydrazide compounds on the activity of WrbA, along with crystal structures of WrbA from Yersinia pseudotuberculosis and Salmonella serovar Typhimurium; the latter also containing parts of the compound in the structure. We also present data showing that the original compounds were unstable in acidic conditions, and that later compounds showed improved stability.


    Organizational Affiliation

    Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, Glasgow, G12 8TA, UK.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NAD(P)H dehydrogenase (quinone)A, B, C, D232Yersinia pseudotuberculosisMutation(s): 0 
Gene Names: YPTB1728
EC: 1.6.5.2
UniProt
Find proteins for Q66BP3 (Yersinia pseudotuberculosis serotype I (strain IP32953))
Explore Q66BP3 
Go to UniProtKB:  Q66BP3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ66BP3
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.04 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.176 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.69α = 61.21
b = 63.86β = 77.9
c = 66.36γ = 86.93
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2022-08-03
    Type: Initial release