3N43

Crystal structures of the mature envelope glycoprotein complex (trypsin cleavage) of Chikungunya virus.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.58 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.245 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Glycoprotein organization of Chikungunya virus particles revealed by X-ray crystallography.

Voss, J.E.Vaney, M.C.Duquerroy, S.Vonrhein, C.Girard-Blanc, C.Crublet, E.Thompson, A.Bricogne, G.Rey, F.A.

(2010) Nature 468: 709-712

  • DOI: 10.1038/nature09555
  • Primary Citation of Related Structures:  2XFB, 2XFC, 3N40, 3N41, 3N42, 3N44

  • PubMed Abstract: 
  • Chikungunya virus (CHIKV) is an emerging mosquito-borne alphavirus that has caused widespread outbreaks of debilitating human disease in the past five years. CHIKV invasion of susceptible cells is mediated by two viral glycoproteins, E1 and E2, which ...

    Chikungunya virus (CHIKV) is an emerging mosquito-borne alphavirus that has caused widespread outbreaks of debilitating human disease in the past five years. CHIKV invasion of susceptible cells is mediated by two viral glycoproteins, E1 and E2, which carry the main antigenic determinants and form an icosahedral shell at the virion surface. Glycoprotein E2, derived from furin cleavage of the p62 precursor into E3 and E2, is responsible for receptor binding, and E1 for membrane fusion. In the context of a concerted multidisciplinary effort to understand the biology of CHIKV, here we report the crystal structures of the precursor p62-E1 heterodimer and of the mature E3-E2-E1 glycoprotein complexes. The resulting atomic models allow the synthesis of a wealth of genetic, biochemical, immunological and electron microscopy data accumulated over the years on alphaviruses in general. This combination yields a detailed picture of the functional architecture of the 25 MDa alphavirus surface glycoprotein shell. Together with the accompanying report on the structure of the Sindbis virus E2-E1 heterodimer at acidic pH (ref. 3), this work also provides new insight into the acid-triggered conformational change on the virus particle and its inbuilt inhibition mechanism in the immature complex.


    Related Citations: 
    • The Fusion glycoprotein shell of Semliki Forest virus: an icosahedral assembly primed for fusogenic activation at endosomal pH.
      Lescar, J.,Roussel, A.,Wien, M.W.,Navaza, J.,Fuller, S.D.,Wengler, G.,Rey, F.A.
      (2001) Cell 105: 137
    • Structure and interactions at the viral surface of the envelope protein E1 of Semliki Forest virus.
      Roussel, A.,Lescar, J.,Vaney, M.C.,Wengler, G.,Rey, F.A.
      (2006) Structure 14: 75
    • Structural Changes of Envelope Proteins During Alphavirus Fusion.
      Li, L.,Jose, J.,Xiang, Y.,Kuhn, R.J.,Rossmann, M.G.
      () TO BE PUBLISHED --: --
    • Conformational change and protein-protein interactions of the fusion protein of Semliki Forest virus.
      Gibbons, D.L.,Vaney, M.C.,Roussel, A.,Vigouroux, A.,Reilly, B.,Lepault, J.,Kielian, M.,Rey, F.A.
      (2004) Nature 427: 320


    Organizational Affiliation

    Institut Pasteur, Département de Virologie, Unité de Virologie Structurale, 25 rue du Dr Roux, 75724 Paris Cedex 15, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
E3 envelope glycoprotein
A
65Chikungunya virusN/A
Find proteins for Q1H8W5 (Chikungunya virus)
Go to UniProtKB:  Q1H8W5
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
E2 envelope glycoprotein
B
360Chikungunya virusN/A
Find proteins for Q1H8W5 (Chikungunya virus)
Go to UniProtKB:  Q1H8W5
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
E1 envelope glycoprotein
F
473Chikungunya virusN/A
Find proteins for Q1H8W5 (Chikungunya virus)
Go to UniProtKB:  Q1H8W5
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACT
Query on ACT

Download SDF File 
Download CCD File 
F
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
NDG
Query on NDG

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Download CCD File 
F
2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE
C8 H15 N O6
OVRNDRQMDRJTHS-PVFLNQBWSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
B, F
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.58 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.245 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 58.406α = 90.00
b = 90.812β = 90.00
c = 179.450γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
PHASERphasing
DNAdata collection
BUSTERrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-12-01
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance