5FMO

Crystal structure and proteomics analysis of empty virus like particles of Cowpea mosaic virus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.362 
  • R-Value Work: 0.359 
  • R-Value Observed: 0.359 

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This is version 1.4 of the entry. See complete history


Literature

Crystal Structure and Proteomics Analysis of Empty Virus-Like Particles of Cowpea Mosaic Virus.

Huynh, N.T.Hesketh, E.L.Saxena, P.Meshcheriakova, Y.Ku, Y.Hoang, L.T.Johnson, J.E.Ranson, N.A.Lomonossoff, G.P.Reddy, V.S.

(2016) Structure 24: 567

  • DOI: 10.1016/j.str.2016.02.011
  • Primary Citation of Related Structures:  
    5FMO

  • PubMed Abstract: 
  • Empty virus-like particles (eVLPs) of Cowpea mosaic virus (CPMV) are currently being utilized as reagents in various biomedical and nanotechnology applications. Here, we report the crystal structure of CPMV eVLPs determined using X-ray crystallography at 2 ...

    Empty virus-like particles (eVLPs) of Cowpea mosaic virus (CPMV) are currently being utilized as reagents in various biomedical and nanotechnology applications. Here, we report the crystal structure of CPMV eVLPs determined using X-ray crystallography at 2.3 Å resolution and compare it with previously reported cryo-electron microscopy (cryo-EM) of eVLPs and virion crystal structures. Although the X-ray and cryo-EM structures of eVLPs are mostly similar, there exist significant differences at the C terminus of the small (S) subunit. The intact C terminus of the S subunit plays a critical role in enabling the efficient assembly of CPMV virions and eVLPs, but undergoes proteolysis after particle formation. In addition, we report the results of mass spectrometry-based proteomics analysis of coat protein subunits from CPMV eVLPs and virions that identify the C termini of S subunits undergo proteolytic cleavages at multiple sites instead of a single cleavage site as previously observed.


    Organizational Affiliation

    Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA. Electronic address: reddyv@scripps.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
EMPTY VIRUS LIKE PARTICLES OF COWPEA MOSAIC VIRUSA [auth L]374Cowpea 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
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
EMPTY VIRUS LIKE PARTICLES OF COWPEA MOSAIC VIRUSB [auth S]213Cowpea 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: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.362 
  • R-Value Work: 0.359 
  • R-Value Observed: 0.359 
  • Space Group: I 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 655.97α = 90
b = 655.97β = 90
c = 571.451γ = 90
Software Package:
Software NamePurpose
X-PLORrefinement
HKL-2000data reduction
SCALEPACKdata scaling
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-03-09
    Type: Initial release
  • Version 1.1: 2016-04-13
    Changes: Database references
  • Version 1.2: 2016-04-20
    Changes: Database references
  • Version 1.3: 2017-08-23
    Changes: Structure summary
  • Version 1.4: 2017-09-13
    Changes: Data collection