1V1I

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.232 

wwPDB Validation 3D Report Full Report


This is version 1.2 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: 10.1016/j.jmb.2004.07.008
  • Primary Citation of Related Structures:  

  • 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 ...

    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.


    Related Citations: 
    • A Triple Beta-Spiral in the Adenovirus Fibre Shaft Reveals a New Structural Motif for a Fibrous Protein
      van Raaij, M.J.,Mitraki, A.,Lavigne, G.,Cusack, S.
      (1999) Nature 401: 935
    • Formation of Highly Stable Chimeric Trimers by Fusion of an Adenovirus Fiber Shaft Fragment with the Foldon Domain of Bacteriophage T4 Fibritin
      Papanikolopoulou, K.,Forge, V.,Goeltz, P.,Mitraki, A.
      (2004) J.Biol.Chem. 279: 8991
    • Structure of Bacteriophage T4 Fibritin M: A Troublesome Packing Arrangement
      Strelkov, S.,Tao, Y.,Shneider, M.M.,Mesyanzhinov, V.,Rossmann, M.G.
      (1998) Acta Crystallogr.,Sect.D 54: 805


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FIBRITIN, FIBER PROTEIN
A, B, C
109Human adenovirus C serotype 2Enterobacteria phage T4
This entity is chimeric
Mutation(s): 0 
Gene Names: wac
Find proteins for P03275 (Human adenovirus C serotype 2)
Go to UniProtKB:  P03275
Find proteins for P10104 (Enterobacteria phage T4)
Go to UniProtKB:  P10104
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.232 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 71.230α = 90.00
b = 43.270β = 90.00
c = 100.910γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
REFMACrefinement
MOLREPphasing
AMoREphasing
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-07-30
    Type: Initial release
  • Version 1.1: 2017-03-15
    Type: Source and taxonomy
  • Version 1.2: 2018-02-07
    Type: Database references, Structure summary