6S93

Crystal structure of group B of Usutu virus envelope protein domain III


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.67 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.199 

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Literature

Structural and antigenic investigation of Usutu virus envelope protein domain III.

Josephine Schoenenwald, A.K.Pletzer, M.Skern, T.

(2020) Virology 551: 46-57

  • DOI: 10.1016/j.virol.2020.09.002
  • Primary Citation of Related Structures:  
    6S95, 6S94, 6S93, 6S92

  • PubMed Abstract: 
  • The mosquito-borne flavivirus Usutu virus (USUV) has recently emerged in birds and humans in Europe. Symptoms of a USUV infection resemble those of West Nile virus (WNV); further, the close antigenic relationship of domain III (DIII) of the USUV and WNV envelope (E) proteins has prevented the development of a reliable serological test to distinguish USUV from WNV ...

    The mosquito-borne flavivirus Usutu virus (USUV) has recently emerged in birds and humans in Europe. Symptoms of a USUV infection resemble those of West Nile virus (WNV); further, the close antigenic relationship of domain III (DIII) of the USUV and WNV envelope (E) proteins has prevented the development of a reliable serological test to distinguish USUV from WNV. To begin to address this deficiency, we identified ten different sequence groups of DIII from 253 complete and 80 partial USUV genome sequences. We solved the DIII structures of four groups, including that of the outlying CAR-1969 strain, which shows an atypical DIII structure. Structural comparisons of the USUV DIII groups and the DIII of WNV bound to the neutralizing antibody E16 revealed why the E16 failed to neutralize all USUV strains tested except for USUV CAR-1969. The analyses allowed predictions to be made to engineer an antibody specific for USUV CAR-1969.


    Organizational Affiliation

    Max Perutz Labs, Medical University of Vienna, Vienna Biocenter, Dr. Bohr-Gasse 9/3, 1030, Vienna, Austria. Electronic address: timothy.skern@muv.ac.at.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Genome polyproteinA, B, C103Usutu virusMutation(s): 0 
EC: 3.4.21.91 (UniProt), 3.6.1.15 (UniProt), 3.6.4.13 (UniProt), 2.1.1.56 (UniProt), 2.1.1.57 (UniProt), 2.7.7.48 (UniProt)
UniProt
Find proteins for Q5WPU5 (Usutu virus)
Explore Q5WPU5 
Go to UniProtKB:  Q5WPU5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.67 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.199 
  • Space Group: P 2 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.06α = 90
b = 55.53β = 90
c = 128.47γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Austrian Science FundAustriaW1258

Revision History  (Full details and data files)

  • Version 1.0: 2020-08-26
    Type: Initial release
  • Version 1.1: 2020-10-14
    Changes: Database references