2N0Y

NMR structure of the complex between the C-terminal domain of the Rift Valley fever virus protein NSs and the PH domain of the Tfb1 subunit of TFIIH


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 260 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

A Omega XaV motif in the Rift Valley fever virus NSs protein is essential for degrading p62, forming nuclear filaments and virulence.

Cyr, N.de la Fuente, C.Lecoq, L.Guendel, I.Chabot, P.R.Kehn-Hall, K.Omichinski, J.G.

(2015) Proc.Natl.Acad.Sci.USA 112: 6021-6026

  • DOI: 10.1073/pnas.1503688112

  • PubMed Abstract: 
  • Rift Valley fever virus (RVFV) is a single-stranded RNA virus capable of inducing fatal hemorrhagic fever in humans. A key component of RVFV virulence is its ability to form nuclear filaments through interactions between the viral nonstructural prote ...

    Rift Valley fever virus (RVFV) is a single-stranded RNA virus capable of inducing fatal hemorrhagic fever in humans. A key component of RVFV virulence is its ability to form nuclear filaments through interactions between the viral nonstructural protein NSs and the host general transcription factor TFIIH. Here, we identify an interaction between a ΩXaV motif in NSs and the p62 subunit of TFIIH. This motif in NSs is similar to ΩXaV motifs found in nucleotide excision repair (NER) factors and transcription factors known to interact with p62. Structural and biophysical studies demonstrate that NSs binds to p62 in a similar manner as these other factors. Functional studies in RVFV-infected cells show that the ΩXaV motif is required for both nuclear filament formation and degradation of p62. Consistent with the fact that the RVFV can be distinguished from other Bunyaviridae-family viruses due to its ability to form nuclear filaments in infected cells, the motif is absent in the NSs proteins of other Bunyaviridae-family viruses. Taken together, our studies demonstrate that p62 binding to NSs through the ΩXaV motif is essential for degrading p62, forming nuclear filaments and enhancing RVFV virulence. In addition, these results show how the RVFV incorporates a simple motif into the NSs protein that enables it to functionally mimic host cell proteins that bind the p62 subunit of TFIIH.


    Organizational Affiliation

    Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QC, Canada H3C 3J7; and.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RNA polymerase II transcription factor B subunit 1
A
115Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 1 
Gene Names: TFB1
Find proteins for P32776 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P32776
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Non-structural protein NS-S
B
24Rift valley fever virus (strain ZH-548 M12)Mutation(s): 0 
Gene Names: NSS
Find proteins for P21698 (Rift valley fever virus (strain ZH-548 M12))
Go to UniProtKB:  P21698
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 260 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-04-22
    Type: Initial release
  • Version 1.1: 2015-05-13
    Type: Database references
  • Version 1.2: 2015-05-20
    Type: Database references
  • Version 1.3: 2015-05-27
    Type: Database references