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: https://doi.org/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 interactions in their capsids ...

    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

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Coat proteinD [auth A],
E [auth B],
F [auth C]
190Cowpea chlorotic mottle virusMutation(s): 0 
Gene Names: ORF3b
UniProt
Find proteins for P03601 (Cowpea chlorotic mottle virus)
Explore P03601 
Go to UniProtKB:  P03601
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03601
Protein Feature View
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  • Reference Sequence

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Entity ID: 1
MoleculeChainsLengthOrganismImage
RNA (5'-R(*AP*UP*AP*U)-3')A [auth D],
C [auth F]
4N/A
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsLengthOrganismImage
RNA (5'-R(*AP*U)-3')B [auth E]2N/A
Protein Feature View
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  • Reference Sequence
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

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • 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