8W9Q

Structure of partial Banna virus

  • Classification: VIRUS
  • Organism(s): Banna virus
  • Mutation(s): No 

  • Deposited: 2023-09-05 Released: 2024-03-27 
  • Deposition Author(s): Li, Z., Cao, S.
  • Funding Organization(s): Chinese Academy of Sciences

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.70 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

Cryo-EM structures of Banna virus in multiple states reveal stepwise detachment of viral spikes.

Li, Z.Xia, H.Rao, G.Fu, Y.Chong, T.Tian, K.Yuan, Z.Cao, S.

(2024) Nat Commun 15: 2284-2284

  • DOI: https://doi.org/10.1038/s41467-024-46624-x
  • Primary Citation of Related Structures:  
    8K42, 8K43, 8K44, 8K49, 8K4A, 8W9P, 8W9Q, 8W9R

  • PubMed Abstract: 

    Banna virus (BAV) is the prototype Seadornavirus, a class of reoviruses for which there has been little structural study. Here, we report atomic cryo-EM structures of three states of BAV virions-surrounded by 120 spikes (full virions), 60 spikes (partial virions), or no spikes (cores). BAV cores are double-layered particles similar to the cores of other non-turreted reoviruses, except for an additional protein component in the outer capsid shell, VP10. VP10 was identified to be a cementing protein that plays a pivotal role in the assembly of BAV virions by directly interacting with VP2 (inner capsid), VP8 (outer capsid), and VP4 (spike). Viral spikes (VP4/VP9 heterohexamers) are situated on top of VP10 molecules in full or partial virions. Asymmetrical electrostatic interactions between VP10 monomers and VP4 trimers are disrupted by high pH treatment, which is thus a simple way to produce BAV cores. Low pH treatment of BAV virions removes only the flexible receptor binding protein VP9 and triggers significant conformational changes in the membrane penetration protein VP4. BAV virions adopt distinct spatial organization of their surface proteins compared with other well-studied reoviruses, suggesting that BAV may have a unique mechanism of penetration of cellular endomembranes.


  • Organizational Affiliation

    CAS Key Laboratory of Special Pathogens, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, PR China.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
VP2
A, B
955Banna virusMutation(s): 0 
UniProt
Find proteins for Q9INH3 (Banna virus)
Explore Q9INH3 
Go to UniProtKB:  Q9INH3
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UniProt GroupQ9INH3
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
VP8
C, D, E, F, G
C, D, E, F, G, H, I, J, K, L, M, N, O
302Banna virusMutation(s): 0 
UniProt
Find proteins for W0G587 (Banna virus)
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Go to UniProtKB:  W0G587
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UniProt GroupW0G587
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
VP10
P, Q
249Banna virusMutation(s): 0 
UniProt
Find proteins for A0A2H4QDD3 (Banna virus)
Explore A0A2H4QDD3 
Go to UniProtKB:  A0A2H4QDD3
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UniProt GroupA0A2H4QDD3
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
VP4
R, S, T
628Banna virusMutation(s): 0 
UniProt
Find proteins for B4Y048 (Banna virus)
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UniProt GroupB4Y048
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  • Reference Sequence
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
VP9U [auth r],
V [auth s],
W [auth t]
283Banna virusMutation(s): 0 
UniProt
Find proteins for Q9YWN5 (Banna virus)
Explore Q9YWN5 
Go to UniProtKB:  Q9YWN5
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UniProt GroupQ9YWN5
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION3.1.1

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data

  • Released Date: 2024-03-27 
  • Deposition Author(s): Li, Z., Cao, S.

Funding OrganizationLocationGrant Number
Chinese Academy of SciencesChinaXDB0490000

Revision History  (Full details and data files)

  • Version 1.0: 2024-03-27
    Type: Initial release