3GPQ

Crystal structure of macro domain of Chikungunya virus in complex with RNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The crystal structures of Chikungunya and Venezuelan equine encephalitis virus nsP3 macro domains define a conserved adenosine binding pocket

Malet, H.Coutard, B.Jamal, S.Dutartre, H.Papageorgiou, N.Neuvonen, M.Ahola, T.Forrester, N.Gould, E.A.Lafitte, D.Ferron, F.Lescar, J.Gorbalenya, A.E.de Lamballerie, X.Canard, B.

(2009) J.Virol. 83: 6534-6545

  • DOI: 10.1128/JVI.00189-09
  • Primary Citation of Related Structures:  
  • Also Cited By: 5ISN

  • PubMed Abstract: 
  • Macro domains (also called "X domains") constitute a protein module family present in all kingdoms of life, including viruses of the Coronaviridae and Togaviridae families. Crystal structures of the macro domain from the Chikungunya virus (an "Old Wo ...

    Macro domains (also called "X domains") constitute a protein module family present in all kingdoms of life, including viruses of the Coronaviridae and Togaviridae families. Crystal structures of the macro domain from the Chikungunya virus (an "Old World" alphavirus) and the Venezuelan equine encephalitis virus (a "New World" alphavirus) were determined at resolutions of 1.65 and 2.30 A, respectively. These domains are active as adenosine di-phosphoribose 1''-phosphate phosphatases. Both the Chikungunya and the Venezuelan equine encephalitis virus macro domains are ADP-ribose binding modules, as revealed by structural and functional analysis. A single aspartic acid conserved through all macro domains is responsible for the specific binding of the adenine base. Sequence-unspecific binding to long, negatively charged polymers such as poly(ADP-ribose), DNA, and RNA is observed and attributed to positively charged patches outside of the active site pocket, as judged by mutagenesis and binding studies. The crystal structure of the Chikungunya virus macro domain with an RNA trimer shows a binding mode utilizing the same adenine-binding pocket as ADP-ribose, but avoiding the ADP-ribose 1''-phosphate phosphatase active site. This leaves the AMP binding site as the sole common feature in all macro domains.


    Organizational Affiliation

    Architecture et Fonction des Macromolécules Biologiques, CNRS and Universités d'Aix-Marseille I et II, UMR 6098, ESIL Case 925, 13288 Marseille, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Non-structural protein 3
A, B, C, D
168Chikungunya virus (strain S27-African prototype)Mutation(s): 0 
Find proteins for Q8JUX6 (Chikungunya virus (strain S27-African prototype))
Go to UniProtKB:  Q8JUX6
Entity ID: 2
MoleculeChainsLengthOrganism
RNA (5'-R(*AP*AP*A)-3')E,F3N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.215 
  • Space Group: P 31
Unit Cell:
Length (Å)Angle (°)
a = 86.824α = 90.00
b = 86.824β = 90.00
c = 81.316γ = 120.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
ADSCdata collection
PDB_EXTRACTdata extraction
SCALAdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-07-21
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance