1V1H

Adenovirus fibre shaft sequence N-terminally fused to the bacteriophage T4 fibritin foldon trimerisation motif with a short linker


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.182 

Starting Model: experimental
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This is version 1.3 of the entry. See complete history


Literature

Adenovirus Fibre Shaft Sequences Fold Into the Native Triple Beta-Spiral Fold When N-Terminally Fused to the Bacteriophage T4 Fibritin Foldon Trimerisation Motif

Papanikolopoulou, K.Teixeira, S.Belrhali, H.Forsyth, V.T.Mitraki, A.van Raaij, M.J.

(2004) J Mol Biol 342: 219

  • DOI: https://doi.org/10.1016/j.jmb.2004.07.008
  • Primary Citation of Related Structures:  
    1V1H, 1V1I

  • PubMed Abstract: 

    Adenovirus fibres are trimeric proteins that consist of a globular C-terminal domain, a central fibrous shaft and an N-terminal part that attaches to the viral capsid. In the presence of the globular C-terminal domain, which is necessary for correct trimerisation, the shaft segment adopts a triple beta-spiral conformation. We have replaced the head of the fibre by the trimerisation domain of the bacteriophage T4 fibritin, the foldon. Two different fusion constructs were made and crystallised, one with an eight amino acid residue linker and one with a linker of only two residues. X-ray crystallographic studies of both fusion proteins shows that residues 319-391 of the adenovirus type 2 fibre shaft fold into a triple beta-spiral fold indistinguishable from the native structure, although this is now resolved at a higher resolution of 1.9 A. The foldon residues 458-483 also adopt their natural structure. The intervening linkers are not well ordered in the crystal structures. This work shows that the shaft sequences retain their capacity to fold into their native beta-spiral fibrous fold when fused to a foreign C-terminal trimerisation motif. It provides a structural basis to artificially trimerise longer adenovirus shaft segments and segments from other trimeric beta-structured fibre proteins. Such artificial fibrous constructs, amenable to crystallisation and solution studies, can offer tractable model systems for the study of beta-fibrous structure. They can also prove useful for gene therapy and fibre engineering applications.


  • Organizational Affiliation

    Institut de Biologie Structurale Jean-Pierre Ebel, 41 rue Jules Horowitz, F-38042 Grenoble, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FIBRITIN, FIBER PROTEIN
A, B, C, D, E
A, B, C, D, E, F
103Human adenovirus 2Tequatrovirus T4
This entity is chimeric
Mutation(s): 0 
UniProt
Find proteins for P10104 (Enterobacteria phage T4)
Explore P10104 
Go to UniProtKB:  P10104
Find proteins for P03275 (Human adenovirus C serotype 2)
Explore P03275 
Go to UniProtKB:  P03275
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP03275P10104
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.182 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.77α = 90
b = 183.33β = 129.29
c = 58.97γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-07-30
    Type: Initial release
  • Version 1.1: 2017-03-15
    Changes: Source and taxonomy
  • Version 1.2: 2018-02-07
    Changes: Database references, Structure summary
  • Version 1.3: 2023-12-13
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description