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

Experimental Data Snapshot

  • Resolution: 2.02 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.253 

wwPDB Validation   3D Report Full Report

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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 & Pharmacology, University of Melbourne, Melbourne, Victoria 3010, Australia.

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

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
RNA-directed RNA polymerase NS58Tick-borne encephalitis virusMutation(s): 0 
EC: (PDB Primary Data), (PDB Primary Data), (PDB Primary Data)
Find proteins for Q01299 (Tick-borne encephalitis virus (strain Hypr))
Explore Q01299 
Go to UniProtKB:  Q01299
Entity Groups  
UniProt GroupQ01299
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.947α = 90
b = 69.947β = 90
c = 201.608γ = 120
Software Package:
Software NamePurpose
DIALSdata reduction
Aimlessdata scaling

Structure Validation

View Full Validation Report

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