3ZKO

The structure of ''breathing'' dengue virus.


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 13.7 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural Changes of Dengue Virus When Exposed to 37 Degrees C.

Fibriansah, G.Ng, T.S.Kostyuchenko, V.A.Lee, J.Lee, S.Wang, J.Lok, S.M.

(2013) J Virol 87: 7585

  • DOI: 10.1128/JVI.00757-13
  • Primary Citation of Related Structures:  
    3ZKO

  • PubMed Abstract: 
  • Previous binding studies of antibodies that recognized a partially or fully hidden epitope suggest that insect cell-derived dengue virus undergoes structural changes at an elevated temperature. This was confirmed by our cryo-electron microscopy images of dengue virus incubated at 37°C, where viruses change their surface from smooth to rough ...

    Previous binding studies of antibodies that recognized a partially or fully hidden epitope suggest that insect cell-derived dengue virus undergoes structural changes at an elevated temperature. This was confirmed by our cryo-electron microscopy images of dengue virus incubated at 37°C, where viruses change their surface from smooth to rough. Here we present the cryo-electron microscopy structures of dengue virus at 37°C. Image analysis showed four classes of particles. The three-dimensional (3D) map of one of these classes, representing half of the imaged virus population, shows that the E protein shell has expanded and there is a hole at the 3-fold vertices. Fitting E protein structures into the map suggests that all of the interdimeric and some intradimeric E protein interactions are weakened. The accessibility of some previously found cryptic epitopes on this class of particles is discussed.


    Organizational Affiliation

    Program in Emerging Infectious Diseases, Duke-NUS Graduate Medical School, Singapore.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ENVELOPE GLYCOPROTEINA, B, C495Dengue virus 2Mutation(s): 0 
EC: 3.4.21.91 (UniProt), 3.6.1.15 (UniProt), 3.6.4.13 (UniProt), 2.1.1.56 (UniProt), 2.1.1.57 (UniProt), 2.7.7.48 (UniProt)
UniProt
Find proteins for P12823 (Dengue virus type 2 (strain Puerto Rico/PR159-S1/1969))
Explore P12823 
Go to UniProtKB:  P12823
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 13.7 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: 2013-05-15
    Type: Initial release
  • Version 1.1: 2013-06-12
    Changes: Derived calculations
  • Version 1.2: 2013-06-26
    Changes: Database references
  • Version 1.3: 2017-08-30
    Changes: Data collection, Refinement description