3CNF

3.88 Angstrom structure of cytoplasmic polyhedrosis virus by cryo-electron microscopy


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.88 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

3.88 A structure of cytoplasmic polyhedrosis virus by cryo-electron microscopy.

Yu, X.Jin, L.Zhou, Z.H.

(2008) Nature 453: 415-419

  • DOI: 10.1038/nature06893
  • Primary Citation of Related Structures:  
    3CNF

  • PubMed Abstract: 
  • Cytoplasmic polyhedrosis virus (CPV) is unique within the Reoviridae family in having a turreted single-layer capsid contained within polyhedrin inclusion bodies, yet being fully capable of cell entry and endogenous RNA transcription. Biochemical data have shown that the amino-terminal 79 residues of the CPV turret protein (TP) is sufficient to bring CPV or engineered proteins into the polyhedrin matrix for micro-encapsulation ...

    Cytoplasmic polyhedrosis virus (CPV) is unique within the Reoviridae family in having a turreted single-layer capsid contained within polyhedrin inclusion bodies, yet being fully capable of cell entry and endogenous RNA transcription. Biochemical data have shown that the amino-terminal 79 residues of the CPV turret protein (TP) is sufficient to bring CPV or engineered proteins into the polyhedrin matrix for micro-encapsulation. Here we report the three-dimensional structure of CPV at 3.88 A resolution using single-particle cryo-electron microscopy. Our map clearly shows the turns and deep grooves of alpha-helices, the strand separation in beta-sheets, and densities for loops and many bulky side chains; thus permitting atomic model-building effort from cryo-electron microscopy maps. We observed a helix-to-beta-hairpin conformational change between the two conformational states of the capsid shell protein in the region directly interacting with genomic RNA. We have also discovered a messenger RNA release hole coupled with the mRNA capping machinery unique to CPV. Furthermore, we have identified the polyhedrin-binding domain, a structure that has potential in nanobiotechnology applications.


    Organizational Affiliation

    Department of Pathology and Laboratory Medicine, The University of Texas Medical School at Houston, Houston, Texas 77030, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
VP1A, B1,333Bombyx mori cypovirus 1Mutation(s): 0 
UniProt
Find proteins for Q6TS43 (Bombyx mori cytoplasmic polyhedrosis virus)
Explore Q6TS43 
Go to UniProtKB:  Q6TS43
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ6TS43
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
VP3C [auth T]1,057Bombyx mori cypovirus 1Mutation(s): 0 
UniProt
Find proteins for Q9E957 (Bombyx mori cytoplasmic polyhedrosis virus)
Explore Q9E957 
Go to UniProtKB:  Q9E957
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9E957
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.88 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: 2008-04-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance