2V8O

Structure of the Murray Valley encephalitis virus RNA helicase to 1. 9A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.182 

Starting Model: experimental
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This is version 1.4 of the entry. See complete history


Literature

Structure of the Murray Valley Encephalitis Virus RNA Helicase at 1.9 A Resolution.

Mancini, E.J.Assenberg, R.Verma, A.Walter, T.S.Tuma, R.Grimes, J.M.Owens, R.J.Stuart, D.I.

(2007) Protein Sci 16: 2294

  • DOI: https://doi.org/10.1110/ps.072843107
  • Primary Citation of Related Structures:  
    2V8O

  • PubMed Abstract: 

    Murray Valley encephalitis virus (MVEV), a mosquito-borne flavivirus endemic to Australia, is closely related to Japanese encephalitis virus and West Nile virus. Nonstructural protein 3 (NS3) is a multifunctional enzyme with serine protease and DEXH/D-box helicase domains, whose activity is central to flavivirus replication and is therefore a possible target for anti-flaviviral compounds. Cloning, purification, and crystal structure determination to 1.9 Angstrom resolution of the NS3 helicase of MVEV and characterization of its enzymatic activity is reported. Comparison with the structures of helicases from related viruses supports a possible mechanism of ATP hydrolysis-driven strand separation.


  • Organizational Affiliation

    Division of Structural Biology and Oxford Protein Production Facility, The Henry Wellcome Building for Genomic Medicine, Oxford University, Oxford, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FLAVIVIRIN PROTEASE NS3444Murray Valley encephalitis virusMutation(s): 0 
EC: 3.4.21.91
UniProt
Find proteins for P05769 (Murray valley encephalitis virus (strain MVE-1-51))
Explore P05769 
Go to UniProtKB:  P05769
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP05769
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.180 
  • R-Value Observed: 0.182 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.516α = 90
b = 76.414β = 91.73
c = 70.609γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
CaspRphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-08-21
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2017-07-12
    Changes: Refinement description
  • Version 1.3: 2019-04-03
    Changes: Data collection, Source and taxonomy
  • Version 1.4: 2023-12-13
    Changes: Data collection, Database references, Other, Refinement description