3GCZ

Yokose virus Methyltransferase in complex with AdoMet


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.169 

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This is version 1.1 of the entry. See complete history


Literature

Crystal structure of a methyltransferase from a no-known-vector Flavivirus

Bollati, M.Milani, M.Mastrangelo, E.de Lambellarie, X.Canard, B.Bolognesi, M.

(2009) Biochem Biophys Res Commun 382: 200-204

  • DOI: 10.1016/j.bbrc.2009.03.008
  • Primary Citation of Related Structures:  
    3GCZ

  • PubMed Abstract: 
  • Presently known flaviviruses belong to three major evolutionary branches: tick-borne viruses, mosquito-borne viruses and viruses with no known vector. Here we present the crystal structure of the Yokose virus methyltransferase at 1.7A resolution, the first structure of a methyltransferase of a Flavivirus with no known vector ...

    Presently known flaviviruses belong to three major evolutionary branches: tick-borne viruses, mosquito-borne viruses and viruses with no known vector. Here we present the crystal structure of the Yokose virus methyltransferase at 1.7A resolution, the first structure of a methyltransferase of a Flavivirus with no known vector. Structural comparison of three methyltransferases representative of each of the Flavivirus branches shows that fold and structures are closely conserved, most differences being related to surface loops flexibility. Analysis of the conserved residues throughout all the sequenced flaviviral methyltransferases reveals that, besides the central cleft hosting the substrate and cofactor binding sites, a second, almost continuous, patch is conserved and points away from active site towards the back of the protein. The high level of structural conservation in this region could be functional for the methyltransferase/RNA interaction and stabilization of the ensuing complex.


    Organizational Affiliation

    Department of Biomolecular Sciences and Biotechnology, CNR-INFM and CIMAINA, University of Milano, Via Celoria 26, 20133 Milano, Italy.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PolyproteinA282Yokose virusMutation(s): 0 
EC: 2.1.1.57
UniProt
Find proteins for Q7T918 (Yokose virus)
Explore Q7T918 
Go to UniProtKB:  Q7T918
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ7T918
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.169 
  • Space Group: P 32
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.912α = 90
b = 68.912β = 90
c = 50.806γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
MOLREPphasing
REFMACrefinement
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-03-24
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance