4C0Y

Cryo-EM reconstruction of empty enterovirus 71 in complex with a neutralizing antibody E18


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 16 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Neutralizing Antibodies Can Initiate Genome Release from Human Enterovirus 71.

Plevka, P.Lim, P.Perera, R.Cardosa, J.Suksatu, A.Kuhn, R.J.Rossmann, M.G.

(2014) Proc.Natl.Acad.Sci.USA 111: 2134

  • DOI: 10.1073/pnas.1320624111
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Antibodies were prepared by immunizing mice with empty, immature particles of human enterovirus 71 (EV71), a picornavirus that causes severe neurological disease in young children. The capsid structure of these empty particles is different from that ...

    Antibodies were prepared by immunizing mice with empty, immature particles of human enterovirus 71 (EV71), a picornavirus that causes severe neurological disease in young children. The capsid structure of these empty particles is different from that of the mature virus and is similar to "A" particles encountered when picornaviruses recognize a potential host cell before genome release. The monoclonal antibody E18, generated by this immunization, induced a conformational change when incubated at temperatures between 4 °C and 37 °C with mature virus, transforming infectious virions into A particles. The resultant loss of genome that was observed by cryo-EM and a fluorescent SYBR Green dye assay inactivated the virus, establishing the mechanism by which the virus is inactivated and demonstrating that the E18 antibody has potential as an anti-EV71 therapy. The antibody-mediated virus neutralization by the induction of genome release has not been previously demonstrated. Furthermore, the present results indicate that antibodies with genome-release activity could also be produced for other picornaviruses by immunization with immature particles.


    Organizational Affiliation

    Department of Biological Sciences, Purdue University, West Lafayette, IN 47907.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
VP1
A
298Enterovirus A71Mutation(s): 0 
Find proteins for A9X4C2 (Enterovirus A71)
Go to UniProtKB:  A9X4C2
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
VP2
B
254Enterovirus A71Mutation(s): 0 
Find proteins for A9X4C2 (Enterovirus A71)
Go to UniProtKB:  A9X4C2
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
VP3
C
242Enterovirus A71Mutation(s): 0 
Find proteins for A9X4C2 (Enterovirus A71)
Go to UniProtKB:  A9X4C2
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
FAB EV18 4 D6-1 F1 G9
X
217N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
FAB EV18 4 D6-1 F1 G9
Y
220N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
UNK
Query on UNK
X, Y
L-PEPTIDE LINKINGC4 H9 N O2

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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 16 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: 2014-02-05
    Type: Initial release
  • Version 1.1: 2014-02-26
    Type: Database references
  • Version 1.2: 2017-08-23
    Type: Data collection
  • Version 1.3: 2019-08-21
    Type: Data collection