3IZX

3.1 Angstrom cryoEM structure of cytoplasmic polyhedrosis virus


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.1 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

Atomic Model of CPV Reveals the Mechanism Used by This Single-Shelled Virus to Economically Carry Out Functions Conserved in Multishelled Reoviruses.

Yu, X.Ge, P.Jiang, J.Atanasov, I.Zhou, Z.H.

(2011) Structure 19: 652-661

  • DOI: 10.1016/j.str.2011.03.003

  • PubMed Abstract: 
  • Unlike the multishelled viruses in the Reoviridae, cytoplasmic polyhedrosis virus (CPV) is single shelled, yet stable and fully capable of carrying out functions conserved within Reoviridae. Here, we report a 3.1 Å resolution cryo electron microscopy ...

    Unlike the multishelled viruses in the Reoviridae, cytoplasmic polyhedrosis virus (CPV) is single shelled, yet stable and fully capable of carrying out functions conserved within Reoviridae. Here, we report a 3.1 Å resolution cryo electron microscopy structure of CPV and derive its atomic model, consisting of 60 turret proteins (TPs), 120 each of capsid shell proteins (CSPs) and large protrusion proteins (LPPs). Two unique segments of CSP contribute to CPV's stability: an inserted protrusion domain interacting with neighboring proteins, and an N-anchor tying up CSPs together through strong interactions such as β sheet augmentation. Without the need to interact with outer shell proteins, LPP retains only the N-terminal two-third region containing a conserved helix-barrel core and interacts exclusively with CSP. TP is also simplified, containing only domains involved in RNA capping. Our results illustrate how CPV proteins have evolved in a coordinative manner to economically carry out their conserved functions.


    Organizational Affiliation

    Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095-7364, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Structural protein VP3
A
1058Bombyx mori cytoplasmic polyhedrosis virusMutation(s): 0 
Find proteins for Q914N6 (Bombyx mori cytoplasmic polyhedrosis virus)
Go to UniProtKB:  Q914N6
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Capsid protein VP1
B, C
1333Bombyx mori cytoplasmic polyhedrosis virusMutation(s): 0 
Find proteins for Q6TS43 (Bombyx mori cytoplasmic polyhedrosis virus)
Go to UniProtKB:  Q6TS43
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Viral structural protein 5
D, E
448Bombyx mori cytoplasmic polyhedrosis virusMutation(s): 0 
Gene Names: VP5
Find proteins for C6K2M8 (Bombyx mori cytoplasmic polyhedrosis virus)
Go to UniProtKB:  C6K2M8
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.1 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: 2011-06-22
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2018-07-18
    Type: Data collection
  • Version 1.3: 2018-08-22
    Type: Data collection, Database references