3J22

The Enterovirus 71 A-particle


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 6.3 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Enterovirus 71 A-particle Forms a Gateway to Allow Genome Release: A CryoEM Study of Picornavirus Uncoating.

Shingler, K.L.Yoder, J.L.Carnegie, M.S.Ashley, R.E.Makhov, A.M.Conway, J.F.Hafenstein, S.

(2013) Plos Pathog. 9: e1003240-e1003240

  • DOI: 10.1371/journal.ppat.1003240
  • Primary Citation of Related Structures:  3J23

  • PubMed Abstract: 
  • Since its discovery in 1969, enterovirus 71 (EV71) has emerged as a serious worldwide health threat. This human pathogen of the picornavirus family causes hand, foot, and mouth disease, and also has the capacity to invade the central nervous system t ...

    Since its discovery in 1969, enterovirus 71 (EV71) has emerged as a serious worldwide health threat. This human pathogen of the picornavirus family causes hand, foot, and mouth disease, and also has the capacity to invade the central nervous system to cause severe disease and death. Upon binding to a host receptor on the cell surface, the virus begins a two-step uncoating process, first forming an expanded, altered "A-particle", which is primed for genome release. In a second step after endocytosis, an unknown trigger leads to RNA expulsion, generating an intact, empty capsid. Cryo-electron microscopy reconstructions of these two capsid states provide insight into the mechanics of genome release. The EV71 A-particle capsid interacts with the genome near the icosahedral two-fold axis of symmetry, which opens to the external environment via a channel ∼10 Å in diameter that is lined with patches of negatively charged residues. After the EV71 genome has been released, the two-fold channel shrinks, though the overall capsid dimensions are conserved. These structural characteristics identify the two-fold channel as the site where a gateway forms and regulates the process of genome release.


    Organizational Affiliation

    Department of Medicine, Department of Microbiology and Immunology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, United States of America.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
capsid protein VP1
A
225Enterovirus A71N/A
Find proteins for B2ZUN0 (Enterovirus A71)
Go to UniProtKB:  B2ZUN0
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
capsid protein VP0
B
237Enterovirus A71N/A
Find proteins for B2ZUN0 (Enterovirus A71)
Go to UniProtKB:  B2ZUN0
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
capsid protein VP3
C
239Enterovirus A71N/A
Find proteins for B2ZUN0 (Enterovirus A71)
Go to UniProtKB:  B2ZUN0
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 6.3 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2012-08-13 
  • Released Date: 2013-04-03 
  • Deposition Author(s): Shingler, K.L.

Revision History 

  • Version 1.0: 2013-04-03
    Type: Initial release
  • Version 1.1: 2013-04-10
    Type: Other
  • Version 1.2: 2013-04-17
    Type: Database references