6HCN

Adenovirus Type 5 Fiber Knob protein at 1.49A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.49 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.212 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Diversity within the adenovirus fiber knob hypervariable loops influences primary receptor interactions.

Baker, A.T.Greenshields-Watson, A.Coughlan, L.Davies, J.A.Uusi-Kerttula, H.Cole, D.K.Rizkallah, P.J.Parker, A.L.

(2019) Nat Commun 10: 741-741

  • DOI: 10.1038/s41467-019-08599-y
  • Primary Citation of Related Structures:  
    6HCN, 6FJN, 6FJQ

  • PubMed Abstract: 
  • Adenovirus based vectors are of increasing importance for wide ranging therapeutic applications. As vaccines, vectors derived from human adenovirus species D serotypes 26 and 48 (HAdV-D26/48) are demonstrating promising efficacy as protective platforms against infectious diseases ...

    Adenovirus based vectors are of increasing importance for wide ranging therapeutic applications. As vaccines, vectors derived from human adenovirus species D serotypes 26 and 48 (HAdV-D26/48) are demonstrating promising efficacy as protective platforms against infectious diseases. Significant clinical progress has been made, yet definitive studies underpinning mechanisms of entry, infection, and receptor usage are currently lacking. Here, we perform structural and biological analysis of the receptor binding fiber-knob protein of HAdV-D26/48, reporting crystal structures, and modelling putative interactions with two previously suggested attachment receptors, CD46 and Coxsackie and Adenovirus Receptor (CAR). We provide evidence of a low affinity interaction with CAR, with modelling suggesting affinity is attenuated through extended, semi-flexible loop structures, providing steric hindrance. Conversely, in silico and in vitro experiments are unable to provide evidence of interaction between HAdV-D26/48 fiber-knob with CD46, or with Desmoglein 2. Our findings provide insight into the cell-virus interactions of HAdV-D26/48, with important implications for the design and engineering of optimised Ad-based therapeutics.


    Organizational Affiliation

    Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK. ParkerAL@Cardiff.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Fiber proteinA, C186Human adenovirus 5Mutation(s): 0 
Gene Names: L5
UniProt
Find proteins for P11818 (Human adenovirus C serotype 5)
Explore P11818 
Go to UniProtKB:  P11818
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Fiber proteinB188Human adenovirus 5Mutation(s): 0 
Gene Names: L5
UniProt
Find proteins for P11818 (Human adenovirus C serotype 5)
Explore P11818 
Go to UniProtKB:  P11818
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.49 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.212 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.16α = 90
b = 102.44β = 90
c = 77.01γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
xia2data reduction
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-02-13
    Type: Initial release
  • Version 1.1: 2019-03-06
    Changes: Data collection, Database references