5VI7

Crystal structure of the Zika virus NS3 helicase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.165 
  • R-Value Observed: 0.167 

Starting Model: experimental
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This is version 1.2 of the entry. See complete history


Literature

Crystal structures of the methyltransferase and helicase from the ZIKA 1947 MR766 Uganda strain.

Bukrejewska, M.Derewenda, U.Radwanska, M.Engel, D.A.Derewenda, Z.S.

(2017) Acta Crystallogr D Struct Biol 73: 767-774

  • DOI: https://doi.org/10.1107/S2059798317010737
  • Primary Citation of Related Structures:  
    5VI7, 5VIM

  • PubMed Abstract: 

    Two nonstructural proteins encoded by Zika virus strain MR766 RNA, a methyltransferase and a helicase, were crystallized and their structures were solved and refined at 2.10 and 2.01 Å resolution, respectively. The NS5 methyltransferase contains a bound S-adenosyl-L-methionine (SAM) co-substrate. The NS3 helicase is in the apo form. Comparison with published crystal structures of the helicase in the apo, nucleotide-bound and single-stranded RNA (ssRNA)-bound states suggests that binding of ssRNA to the helicase may occur through conformational selection rather than induced fit.


  • Organizational Affiliation

    Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, VA 22908-0736, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
helicase443Zika virusMutation(s): 0 
EC: 3.6.4.13
UniProt
Find proteins for Q32ZE1 (Zika virus)
Explore Q32ZE1 
Go to UniProtKB:  Q32ZE1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ32ZE1
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.165 
  • R-Value Observed: 0.167 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.606α = 90
b = 79.468β = 90
c = 119.769γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-3000data reduction
HKL-3000data scaling
PHENIXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-09-06
    Type: Initial release
  • Version 1.1: 2018-04-18
    Changes: Data collection, Database references
  • Version 1.2: 2023-10-04
    Changes: Data collection, Database references, Refinement description