5A32

Electron cryo-microscopy of Cowpea Mosaic Virus containing RNA-1 (CPMVb)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.44 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Mechanisms of assembly and genome packaging in an RNA virus revealed by high-resolution cryo-EM.

Hesketh, E.L.Meshcheriakova, Y.Dent, K.C.Saxena, P.Thompson, R.F.Cockburn, J.J.Lomonossoff, G.P.Ranson, N.A.

(2015) Nat Commun 6: 10113-10113

  • DOI: 10.1038/ncomms10113
  • Primary Citation of Related Structures:  
    5A32, 5A33

  • PubMed Abstract: 
  • Cowpea mosaic virus is a plant-infecting member of the Picornavirales and is of major interest in the development of biotechnology applications. Despite the availability of >100 crystal structures of Picornavirales capsids, relatively little is known about the mechanisms of capsid assembly and genome encapsidation ...

    Cowpea mosaic virus is a plant-infecting member of the Picornavirales and is of major interest in the development of biotechnology applications. Despite the availability of >100 crystal structures of Picornavirales capsids, relatively little is known about the mechanisms of capsid assembly and genome encapsidation. Here we have determined cryo-electron microscopy reconstructions for the wild-type virus and an empty virus-like particle, to 3.4 Å and 3.0 Å resolution, respectively, and built de novo atomic models of their capsids. These new structures reveal the C-terminal region of the small coat protein subunit, which is essential for virus assembly and which was missing from previously determined crystal structures, as well as residues that bind to the viral genome. These observations allow us to develop a new model for genome encapsidation and capsid assembly.


    Organizational Affiliation

    Astbury Centre for Structural Molecular Biology, University of Leeds, Mount Preston Street, Leeds LS2 9JT, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
RNA2 POLYPROTEINA189Cowpea mosaic virusMutation(s): 0 
UniProt
Find proteins for P03599 (Cowpea mosaic virus (strain SB))
Explore P03599 
Go to UniProtKB:  P03599
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
RNA2 POLYPROTEINB369Cowpea mosaic virusMutation(s): 0 
UniProt
Find proteins for P03599 (Cowpea mosaic virus (strain SB))
Explore P03599 
Go to UniProtKB:  P03599
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.44 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-12-23
    Type: Initial release
  • Version 1.1: 2017-04-19
    Changes: Database references, Other
  • Version 1.2: 2017-08-30
    Changes: Data collection, Refinement description