5OOO

Structure of the Rift Valley fever virus NSs protein core domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.202 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Rift Valley fever phlebovirus NSs protein core domain structure suggests molecular basis for nuclear filaments.

Barski, M.Brennan, B.Miller, O.K.Potter, J.A.Vijayakrishnan, S.Bhella, D.Naismith, J.H.Elliott, R.M.Schwarz-Linek, U.

(2017) Elife 6

  • DOI: 10.7554/eLife.29236
  • Primary Citation of Related Structures:  
    5OOO

  • PubMed Abstract: 
  • Rift Valley fever phlebovirus (RVFV) is a clinically and economically important pathogen increasingly likely to cause widespread epidemics. RVFV virulence depends on the interferon antagonist non-structural protein (NSs), which remains poorly characterized ...

    Rift Valley fever phlebovirus (RVFV) is a clinically and economically important pathogen increasingly likely to cause widespread epidemics. RVFV virulence depends on the interferon antagonist non-structural protein (NSs), which remains poorly characterized. We identified a stable core domain of RVFV NSs (residues 83-248), and solved its crystal structure, a novel all-helical fold organized into highly ordered fibrils. A hallmark of RVFV pathology is NSs filament formation in infected cell nuclei. Recombinant virus encoding the NSs core domain induced intranuclear filaments, suggesting it contains all essential determinants for nuclear translocation and filament formation. Mutations of key crystal fibril interface residues in viruses encoding full-length NSs completely abrogated intranuclear filament formation in infected cells. We propose the fibrillar arrangement of the NSs core domain in crystals reveals the molecular basis of assembly of this key virulence factor in cell nuclei. Our findings have important implications for fundamental understanding of RVFV virulence.


    Organizational Affiliation

    Biomedical Sciences Research Complex, University of St Andrews, St Andrews, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Non-structural protein NS-SA, B170Rift Valley fever virusMutation(s): 0 
Gene Names: NSS
UniProt
Find proteins for P21698 (Rift valley fever virus (strain ZH-548 M12))
Explore P21698 
Go to UniProtKB:  P21698
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.201 
  • R-Value Observed: 0.202 
  • Space Group: P 64 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 124.5α = 90
b = 124.5β = 90
c = 174.26γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
xia2data reduction
xia2data scaling
SHELXCDphasing

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomMDTG10 - G1000407/1

Revision History  (Full details and data files)

  • Version 1.0: 2017-08-16
    Type: Initial release
  • Version 1.1: 2017-09-13
    Changes: Author supporting evidence
  • Version 1.2: 2017-09-27
    Changes: Database references