5N8D

Structure of the distal domain of mouse adenovirus 2 fibre, P21 native


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.168 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure and N-acetylglucosamine binding of the distal domain of mouse adenovirus 2 fibre.

Singh, A.K.Nguyen, T.H.Vidovszky, M.Z.Harrach, B.Benko, M.Kirwan, A.Joshi, L.Kilcoyne, M.Berbis, M.A.Canada, F.J.Jimenez-Barbero, J.Menendez, M.Wilson, S.S.Bromme, B.A.Smith, J.G.van Raaij, M.J.

(2018) J. Gen. Virol. 99: 1494-1508

  • DOI: 10.1099/jgv.0.001145
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Murine adenovirus 2 (MAdV-2) infects cells of the mouse gastrointestinal tract. Like human adenoviruses, it is a member of the genus Mastadenovirus, family Adenoviridae. The MAdV-2 genome has a single fibre gene that expresses a 787 residue-long prot ...

    Murine adenovirus 2 (MAdV-2) infects cells of the mouse gastrointestinal tract. Like human adenoviruses, it is a member of the genus Mastadenovirus, family Adenoviridae. The MAdV-2 genome has a single fibre gene that expresses a 787 residue-long protein. Through analogy to other adenovirus fibre proteins, it is expected that the carboxy-terminal virus-distal head domain of the fibre is responsible for binding to the host cell, although the natural receptor is unknown. The putative head domain has little sequence identity to adenovirus fibres of known structure. In this report, we present high-resolution crystal structures of the carboxy-terminal part of the MAdV-2 fibre. The structures reveal a domain with the typical adenovirus fibre head topology and a domain containing two triple β-spiral repeats of the shaft domain. Through glycan microarray profiling, saturation transfer difference nuclear magnetic resonance spectroscopy, isothermal titration calorimetry and site-directed mutagenesis, we show that the fibre specifically binds to the monosaccharide N-acetylglucosamine (GlcNAc). The crystal structure of the complex reveals that GlcNAc binds between the AB and CD loops at the top of each of the three monomers of the MAdV-2 fibre head. However, infection competition assays show that soluble GlcNAc monosaccharide and natural GlcNAc-containing polymers do not inhibit infection by MAdV-2. Furthermore, site-directed mutation of the GlcNAc-binding residues does not prevent the inhibition of infection by soluble fibre protein. On the other hand, we show that the MAdV-2 fibre protein binds GlcNAc-containing mucin glycans, which suggests that the MAdV-2 fibre protein may play a role in viral mucin penetration in the mouse gut.


    Organizational Affiliation

    †​Present address: School of Biosciences, Stacey Building, University of Kent, Canterbury CT2 7NJ, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fiber
A, B, C, D, E, F
237Murine adenovirus 2Mutation(s): 0 
Find proteins for E7CH51 (Murine adenovirus 2)
Go to UniProtKB:  E7CH51
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A, B, C, D, E, F
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A, B, C, D, E, F
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.168 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 93.880α = 90.00
b = 100.600β = 116.28
c = 95.470γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
Aimlessdata scaling
Cootmodel building
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Spanish Ministry of Economy and CompetitivenessSpainBFU2011-24843
Spanish Ministry of Economy and CompetitivenessSpainBFU2014-53425-P
Spanish Ministry of Economy and CompetitivenessSpainBIO2015-68990-REDT
Spanish Ministry of Economy and CompetitivenessSpainFIS2011-16090-E

Revision History 

  • Version 1.0: 2018-03-14
    Type: Initial release
  • Version 1.1: 2018-10-10
    Type: Data collection, Database references, Structure summary
  • Version 1.2: 2018-11-14
    Type: Data collection, Database references, Structure summary