Crystal structure of the fiber head domain of the Atadenovirus snake adenovirus 1, selenomethionine-derivative

Experimental Data Snapshot

  • Resolution: 1.60 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.159 

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Crystal structure of the fibre head domain of the Atadenovirus Snake Adenovirus 1.

Singh, A.K.Menendez-Conejero, R.San Martin, C.van Raaij, M.J.

(2014) PLoS One 9: e114373-e114373

  • DOI: https://doi.org/10.1371/journal.pone.0114373
  • Primary Citation of Related Structures:  
    4D0U, 4D0V, 4D1F, 4D1G, 4UMI

  • PubMed Abstract: 

    Adenoviruses are non-enveloped icosahedral viruses with trimeric fibre proteins protruding from their vertices. There are five known genera, from which only Mastadenoviruses have been widely studied. Apart from studying adenovirus as a biological model system and with a view to prevent or combat viral infection, there is a major interest in using adenovirus for vaccination, cancer therapy and gene therapy purposes. Adenoviruses from the Atadenovirus genus have been isolated from squamate reptile hosts, ruminants and birds and have a characteristic gene organization and capsid morphology. The carboxy-terminal virus-distal fibre head domains are likely responsible for primary receptor recognition. We determined the high-resolution crystal structure of the Snake Adenovirus 1 (SnAdV-1) fibre head using the multi-wavelength anomalous dispersion (MAD) method. Despite the absence of significant sequence homology, this Atadenovirus fibre head has the same beta-sandwich propeller topology as other adenovirus fibre heads. However, it is about half the size, mainly due to much shorter loops connecting the beta-strands. The detailed structure of the SnAdV-1 fibre head and other animal adenovirus fibre heads, together with the future identification of their natural receptors, may lead to the development of new strategies to target adenovirus vectors to cells of interest.

  • Organizational Affiliation

    Departamento de Estructura de Macromoleculas, Centro Nacional de Biotecnologia (CNB-CSIC), Madrid, Spain; NanoBiomedicine Initiative, Centro Nacional de Biotecnologia (CNB-CSIC), Madrid, Spain.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B, C, D
145Snake adenovirus 1Mutation(s): 2 
Find proteins for A9CB96 (Snake adenovirus serotype 1)
Explore A9CB96 
Go to UniProtKB:  A9CB96
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA9CB96
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.60 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.159 
  • Space Group: I 21 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 149.54α = 90
b = 149.54β = 90
c = 149.54γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-12-17
    Type: Initial release
  • Version 1.1: 2015-03-04
    Changes: Database references
  • Version 1.2: 2015-04-29
    Changes: Data collection
  • Version 1.3: 2018-01-17
    Changes: Database references
  • Version 2.0: 2018-12-19
    Changes: Atomic model, Data collection, Derived calculations