7QSB

Structural basis on the interaction of Scribble PDZ domains with the Tick Born encephalitis virus (TBEV) NS5 protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.84 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.250 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Molecular basis of Tick Born encephalitis virus NS5 mediated subversion of apico-basal cell polarity signalling.

Javorsky, A.Humbert, P.O.Kvansakul, M.

(2022) Biochem J 479: 1303-1315

  • DOI: https://doi.org/10.1042/BCJ20220037
  • Primary Citation of Related Structures:  
    7QS9, 7QSA, 7QSB

  • PubMed Abstract: 

    The Scribble (Scrib) protein is a conserved cell polarity regulator with anti-tumorigenic properties. Viruses like the Tick-born encephalitis virus (TBEV) target Scribble to establish a cellular environment supporting viral replication, which is ultimately associated with poor prognosis upon infection. The TBEV NS5 protein has been reported to harbour both an internal as well as a C-terminal PDZ binding motif (PBM), however only the internal PBM was shown to be an interactor with Scribble, with the interaction being mediated via the Scribble PDZ4 domain to antagonize host interferon responses. We examined the NS5 PBM motif interactions with all Scribble PDZ domains using isothermal titration calorimetry, which revealed that the proposed internal PBM did not interact with any Scribble PDZ domains. Instead, the C-terminal PBM of NS5 interacted with Scrib PDZ3. We then established the structural basis of these interactions by determining crystal structures of Scrib PDZ3 bound to the NS5 C-terminal PBM. Our findings provide a structural basis for Scribble PDZ domain and TBEV NS5 interactions and provide a platform to dissect the pathogenesis of TBEV and the role of cell polarity signalling using structure guided approaches.


  • Organizational Affiliation

    Department of Biochemistry & Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein scribble homolog
A, B
92Homo sapiensMutation(s): 0 
Gene Names: SCRIBCRIB1KIAA0147LAP4SCRB1VARTUL
UniProt & NIH Common Fund Data Resources
Find proteins for Q14160 (Homo sapiens)
Explore Q14160 
Go to UniProtKB:  Q14160
PHAROS:  Q14160
GTEx:  ENSG00000180900 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ14160
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.84 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.250 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 36.882α = 90
b = 60.885β = 90
c = 64.902γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
DIALSdata 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: 2022-08-31
    Type: Initial release
  • Version 1.1: 2024-01-31
    Changes: Data collection, Refinement description