4GMP

Crystal structure of enterovirus 71 strain 1095 procapsid


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.9 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.269 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structures of the procapsid and mature virion of enterovirus 71 strain 1095.

Cifuente, J.O.Lee, H.Yoder, J.D.Shingler, K.L.Carnegie, M.S.Yoder, J.L.Ashley, R.E.Makhov, A.M.Conway, J.F.Hafenstein, S.

(2013) J.Virol. 87: 7637-7645

  • DOI: 10.1128/JVI.03519-12

  • PubMed Abstract: 
  • Enterovirus 71 (EV71) is an important emerging human pathogen with a global distribution and presents a disease pattern resembling poliomyelitis with seasonal epidemics that include cases of severe neurological complications, such as acute flaccid pa ...

    Enterovirus 71 (EV71) is an important emerging human pathogen with a global distribution and presents a disease pattern resembling poliomyelitis with seasonal epidemics that include cases of severe neurological complications, such as acute flaccid paralysis. EV71 is a member of the Picornaviridae family, which consists of icosahedral, nonenveloped, single-stranded RNA viruses. Here we report structures derived from X-ray crystallography and cryoelectron microscopy (cryo-EM) for the 1095 strain of EV71, including a putative precursor in virus assembly, the procapsid, and the mature virus capsid. The cryo-EM map of the procapsid provides new structural information on portions of the capsid proteins VP0 and VP1 that are disordered in the higher-resolution crystal structures. Our structures solved from virus particles in solution are largely in agreement with those from prior X-ray crystallographic studies; however, we observe small but significant structural differences for the 1095 procapsid compared to a structure solved in a previous study (X. Wang, W. Peng, J. Ren, Z. Hu, J. Xu, Z. Lou, X. Li, W. Yin, X. Shen, C. Porta, T. S. Walter, G. Evans, D. Axford, R. Owen, D. J. Rowlands, J. Wang, D. I. Stuart, E. E. Fry, and Z. Rao, Nat. Struct. Mol. Biol. 19:424-429, 2012) for a different strain of EV71. For both EV71 strains, the procapsid is significantly larger in diameter than the mature capsid, unlike in any other picornavirus. Nonetheless, our results demonstrate that picornavirus capsid expansion is possible without RNA encapsidation and that picornavirus assembly may involve an inward radial collapse of the procapsid to yield the native virion.


    Organizational Affiliation

    Department of Medicine, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
capsid protein VP0
0
323Enterovirus A71Mutation(s): 0 
Find proteins for E5RPG0 (Enterovirus A71)
Go to UniProtKB:  E5RPG0
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
capsid protein VP1
1
297Enterovirus A71Mutation(s): 0 
Find proteins for Q91D09 (Enterovirus A71)
Go to UniProtKB:  Q91D09
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
capsid protein VP3
3
242Enterovirus A71Mutation(s): 0 
Find proteins for E5RPG0 (Enterovirus A71)
Go to UniProtKB:  E5RPG0
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.9 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.269 
  • Space Group: P 42 3 2
Unit Cell:
Length (Å)Angle (°)
a = 350.248α = 90.00
b = 350.248β = 90.00
c = 350.248γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
HKL-2000data reduction
CNSrefinement
HKL-2000data scaling
ADSCdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-05-15
    Type: Initial release
  • Version 1.1: 2013-08-14
    Type: Database references