1CWP

STRUCTURES OF THE NATIVE AND SWOLLEN FORMS OF COWPEA CHLOROTIC MOTTLE VIRUS DETERMINED BY X-RAY CRYSTALLOGRAPHY AND CRYO-ELECTRON MICROSCOPY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Work: 0.310 
  • R-Value Observed: 0.310 

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This is version 1.2 of the entry. See complete history


Literature

Structures of the native and swollen forms of cowpea chlorotic mottle virus determined by X-ray crystallography and cryo-electron microscopy.

Speir, J.A.Munshi, S.Wang, G.Baker, T.S.Johnson, J.E.

(1995) Structure 3: 63-77

  • DOI: 10.1016/s0969-2126(01)00135-6
  • Primary Citation of Related Structures:  
    1CWP

  • PubMed Abstract: 
  • RNA-protein interactions stabilize many viruses and also the nucleoprotein cores of enveloped animal viruses (e.g. retroviruses). The nucleoprotein particles are frequently pleomorphic and generally unstable due to the lack of strong protein-protein ...

    RNA-protein interactions stabilize many viruses and also the nucleoprotein cores of enveloped animal viruses (e.g. retroviruses). The nucleoprotein particles are frequently pleomorphic and generally unstable due to the lack of strong protein-protein interactions in their capsids. Principles governing their structures are unknown because crystals of such nucleoprotein particles that diffract to high resolution have not previously been produced. Cowpea chlorotic mottle virions (CCMV) are typical of particles stabilized by RNA-protein interactions and it has been found that crystals that diffract beyond 4.5 A resolution are difficult to grow. However, we report here the purification of CCMV with an exceptionally mild procedure and the growth of crystals that diffract X-rays to 3.2 A resolution.


    Related Citations: 
    • The 3.2 Angstrom Resolution Structure of the Polymorphic Cowpea Chlorotic Mottle Virus Ribonucleoprotein Particle
      Speir, J.A.
      (1994) Thesis, Purdue University --: --
    • Preliminary X-Ray Data Analysis of Crystalline Cowpea Chlorotic Mottle Virus
      Speir, J.A., Munshi, S., Baker, T.S., Johnson, J.E.
      (1993) Virology 193: 234
    • A Study of the Self-Assembly Process in a Small Spherical Virus: Formation of Organized Structures from Protein Subunits in Vitro
      Bancroft, J.B., Hills, G.J., Markham, R.
      (1967) Virology 31: 354

    Organizational Affiliation

    Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907-1392, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Coat proteinABC190Cowpea chlorotic mottle virusMutation(s): 0 
Gene Names: ORF3b
Find proteins for P03601 (Cowpea chlorotic mottle virus)
Explore P03601 
Go to UniProtKB:  P03601
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    RNA (5'-R(*AP*UP*AP*U)-3')D, F4N/A
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 2
      MoleculeChainsLengthOrganismImage
      RNA (5'-R(*AP*U)-3')E2N/A
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 3.20 Å
      • R-Value Work: 0.310 
      • R-Value Observed: 0.310 
      • Space Group: P 21 21 21
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 381.3α = 90
      b = 381.3β = 90
      c = 408.6γ = 90
      Software Package:
      Software NamePurpose
      X-PLORrefinement
      PURDUEdata reduction

      Structure Validation

      View Full Validation Report



      Entry History 

      Deposition Data

      Revision History 

      • Version 1.0: 1995-05-22
        Type: Initial release
      • Version 1.1: 2008-05-22
        Changes: Version format compliance
      • Version 1.2: 2011-07-13
        Changes: Version format compliance