3ZIF

Cryo-EM structures of two intermediates provide insight into adenovirus assembly and disassembly

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.5 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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This is version 1.2 of the entry. See complete history. 

Literature

Cryo-Em Structures of Two Bovine Adenovirus Type 3 Intermediates

Cheng, L., Huang, X., Li, X., Xiong, W., Sun, W., Yang, C., Zhang, K., Wang, Y., Liu, H., Huang, X., Ji, G., Sun, F., Zheng, C., Zhu, P.

(2014) Virology 450: 174

  • DOI: 10.1016/j.virol.2013.12.012

  • PubMed Abstract: 

    • Adenoviruses (Ads) infect hosts from all vertebrate species and have been investigated as vaccine vectors. We report here near-atomic structures of two bovine Ad type 3 (BAd3) intermediates obtained by cryo-electron microscopy. A comparison between t ...

    Adenoviruses (Ads) infect hosts from all vertebrate species and have been investigated as vaccine vectors. We report here near-atomic structures of two bovine Ad type 3 (BAd3) intermediates obtained by cryo-electron microscopy. A comparison between the two intermediate structures reveals that the differences are localized in the fivefold vertex region, while their facet structures are identical. The overall facet structure of BAd3 exhibits a similar structure to human Ads; however, BAd3 protein IX has a unique conformation. Mass spectrometry and cryo-electron tomography analyses indicate that one intermediate structure represents the stage during DNA encapsidation, whilst the other intermediate structure represents a later stage. These results also suggest that cleavage of precursor protein VI occurs during, rather than after, the DNA encapsidation process. Overall, our results provide insights into the mechanism of Ad assembly, and allow the first structural comparison between human and nonhuman Ads at backbone level.

    Organizational Affiliation: 

    National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HEXON PROTEIN
A, B, C, D, E, F, G, H, I, J, K, L
911Bovine adenovirus B serotype 3Mutation(s): 0 
Gene Names: L3
Find proteins for P03278 (Bovine adenovirus B serotype 3)
Go to UniProtKB:  P03278
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PENTON PROTEIN
M
482Bovine adenovirus B serotype 3Mutation(s): 0 
Gene Names: L2
Find proteins for O71096 (Bovine adenovirus B serotype 3)
Go to UniProtKB:  O71096
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
PIX
N, O, P, Q
125Bovine adenovirus B serotype 3Mutation(s): 0 
Find proteins for Q64845 (Bovine adenovirus B serotype 3)
Go to UniProtKB:  Q64845
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
PVIII
R
216Bovine adenovirus B serotype 3Mutation(s): 0 
Gene Names: L4
Find proteins for O92788 (Bovine adenovirus B serotype 3)
Go to UniProtKB:  O92788
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.5 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-01-22
    Type: Initial release
  • Version 1.1: 2014-02-19
    Type: Database references
  • Version 1.2: 2017-08-23
    Type: Data collection