6HBL

Echovirus 18 Open particle without three pentamers


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.7 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Enterovirus particles expel capsid pentamers to enable genome release.

Buchta, D.Fuzik, T.Hrebik, D.Levdansky, Y.Sukenik, L.Mukhamedova, L.Moravcova, J.Vacha, R.Plevka, P.

(2019) Nat Commun 10: 1138-1138

  • DOI: 10.1038/s41467-019-09132-x
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Viruses from the genus Enterovirus are important human pathogens. Receptor binding or exposure to acidic pH in endosomes converts enterovirus particles to an activated state that is required for genome release. However, the mechanism of enterovirus u ...

    Viruses from the genus Enterovirus are important human pathogens. Receptor binding or exposure to acidic pH in endosomes converts enterovirus particles to an activated state that is required for genome release. However, the mechanism of enterovirus uncoating is not well understood. Here, we use cryo-electron microscopy to visualize virions of human echovirus 18 in the process of genome release. We discover that the exit of the RNA from the particle of echovirus 18 results in a loss of one, two, or three adjacent capsid-protein pentamers. The opening in the capsid, which is more than 120 Å in diameter, enables the release of the genome without the need to unwind its putative double-stranded RNA segments. We also detect capsids lacking pentamers during genome release from echovirus 30. Thus, our findings uncover a mechanism of enterovirus genome release that could become target for antiviral drugs.


    Organizational Affiliation

    Max Planck Institute for Developmental Biology, Max-Planck-Ring 5, 72076, Tübingen, Germany.,Faculty of Science, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,Central European Institute of Technology, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic.,Central European Institute of Technology, Masaryk University, Kamenice 5, Brno, 625 00, Czech Republic. pavel.plevka@ceitec.muni.cz.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Echovirus 18 capsid protein 1
A, q, n, k, h, e, b, Y, V, S, P, M, J, G, D
287Echovirus E18Mutation(s): 0 
Find proteins for Q8V635 (Echovirus E18)
Go to UniProtKB:  Q8V635
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Echovirus 18 capsid protein 2
r, o, l, i, f, c, Z, W, T, Q, N, K, H, E, B
260Echovirus E18Mutation(s): 0 
Find proteins for Q8V635 (Echovirus E18)
Go to UniProtKB:  Q8V635
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Echovirus 18 capsid protein 3
s, p, m, j, g, d, a, X, U, R, O, L, I, F, C
239Echovirus E18Mutation(s): 0 
Find proteins for Q8V635 (Echovirus E18)
Go to UniProtKB:  Q8V635
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.7 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Research CouncilCzech Republic335855

Revision History 

  • Version 1.0: 2019-03-20
    Type: Initial release