3J2W

Electron cryo-microscopy of Chikungunya virus


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural analyses at pseudo atomic resolution of Chikungunya virus and antibodies show mechanisms of neutralization.

Sun, S.Xiang, Y.Akahata, W.Holdaway, H.Pal, P.Zhang, X.Diamond, M.S.Nabel, G.J.Rossmann, M.G.

(2013) Elife 2: e00435-e00435

  • DOI: 10.7554/eLife.00435
  • Primary Citation of Related Structures:  3J2X, 3J2Y, 3J2Z, 3J30, 4GQ9

  • PubMed Abstract: 
  • A 5.3 Å resolution, cryo-electron microscopy (cryoEM) map of Chikungunya virus-like particles (VLPs) has been interpreted using the previously published crystal structure of the Chikungunya E1-E2 glycoprotein heterodimer. The heterodimer structure wa ...

    A 5.3 Å resolution, cryo-electron microscopy (cryoEM) map of Chikungunya virus-like particles (VLPs) has been interpreted using the previously published crystal structure of the Chikungunya E1-E2 glycoprotein heterodimer. The heterodimer structure was divided into domains to obtain a good fit to the cryoEM density. Differences in the T = 4 quasi-equivalent heterodimer components show their adaptation to different environments. The spikes on the icosahedral 3-fold axes and those in general positions are significantly different, possibly representing different phases during initial generation of fusogenic E1 trimers. CryoEM maps of neutralizing Fab fragments complexed with VLPs have been interpreted using the crystal structures of the Fab fragments and the VLP structure. Based on these analyses the CHK-152 antibody was shown to stabilize the viral surface, hindering the exposure of the fusion-loop, likely neutralizing infection by blocking fusion. The CHK-9, m10 and m242 antibodies surround the receptor-attachment site, probably inhibiting infection by blocking cell attachment. DOI:http://dx.doi.org/10.7554/eLife.00435.001.


    Organizational Affiliation

    Department of Biological Sciences , Purdue University , West Lafayette , United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glycoprotein E1
A, B, C, D
393Chikungunya virusN/A
Find proteins for Q1H8W5 (Chikungunya virus)
Go to UniProtKB:  Q1H8W5
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Glycoprotein E2
M, N, O
336Chikungunya virusN/A
Find proteins for Q1H8W5 (Chikungunya virus)
Go to UniProtKB:  Q1H8W5
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Glycoprotein E2
P
336Chikungunya virusN/A
Find proteins for Q1H8W5 (Chikungunya virus)
Go to UniProtKB:  Q1H8W5
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Glycoprotein E1
E, F, G, H
46Chikungunya virus (strain 37997)EC: 3.4.21.90
Find proteins for Q5XXP3 (Chikungunya virus (strain 37997))
Go to UniProtKB:  Q5XXP3
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Glycoprotein E2
Q, R, S, T
81Chikungunya virus (strain 37997)EC: 3.4.21.90
Find proteins for Q5XXP3 (Chikungunya virus (strain 37997))
Go to UniProtKB:  Q5XXP3
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
Capsid protein
I, J, K, L
149Chikungunya virus (strain 37997)EC: 3.4.21.90
Find proteins for Q5XXP3 (Chikungunya virus (strain 37997))
Go to UniProtKB:  Q5XXP3
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-04-24
    Type: Initial release
  • Version 1.1: 2016-06-08
    Type: Structure summary