4UO9

Structure of the A_Canine_Colorado_17864_06 H3 haemagglutinin Ser30Thr mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Recent Evolution of Equine Influenza and the Origin of Canine Influenza.

Collins, P.J.Vachieri, S.G.Haire, L.F.Ogrodowicz, R.W.Martin, S.R.Walker, P.A.Xiong, X.Gamblin, S.J.Skehel, J.J.

(2014) Proc.Natl.Acad.Sci.USA 111: 11175

  • DOI: 10.1073/pnas.1406606111
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • In 2004 an hemagglutinin 3 neuraminidase 8 (H3N8) equine influenza virus was transmitted from horses to dogs in Florida and subsequently spread throughout the United States and to Europe. To understand the molecular basis of changes in the antigenici ...

    In 2004 an hemagglutinin 3 neuraminidase 8 (H3N8) equine influenza virus was transmitted from horses to dogs in Florida and subsequently spread throughout the United States and to Europe. To understand the molecular basis of changes in the antigenicity of H3 hemagglutinins (HAs) that have occurred during virus evolution in horses, and to investigate the role of HA in the equine to canine cross-species transfer, we used X-ray crystallography to determine the structures of the HAs from two antigenically distinct equine viruses and from a canine virus. Structurally all three are very similar with the majority of amino acid sequence differences between the two equine HAs located on the virus membrane-distal molecular surface. HAs of canine viruses are distinct in containing a Trp-222 → Leu substitution in the receptor binding site that influences specificity for receptor analogs. In the fusion subdomain of canine and recent equine virus HAs a unique difference is observed by comparison with all other HAs examined to date. Analyses of site-specific mutant HAs indicate that a single amino acid substitution, Thr-30 → Ser, influences interactions between N-terminal and C-terminal regions of the subdomain that are important in the structural changes required for membrane fusion activity. Both structural modifications may have facilitated the transmission of H3N8 influenza from horses to dogs.


    Organizational Affiliation

    Divisions of Virology,Molecular Structure, and.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HA1
A
328Influenza A virusMutation(s): 1 
Gene Names: HA
Find proteins for E0UVR5 (Influenza A virus)
Go to UniProtKB:  E0UVR5
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
HA2
B
175Influenza A virusMutation(s): 0 
Gene Names: HA
Find proteins for E0UVR5 (Influenza A virus)
Go to UniProtKB:  E0UVR5
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
BMA
Query on BMA

Download SDF File 
Download CCD File 
A
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.218 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 100.382α = 90.00
b = 100.382β = 90.00
c = 396.534γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
Aimlessdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-07-23
    Type: Initial release
  • Version 1.1: 2014-08-13
    Type: Database references
  • Version 1.2: 2015-04-29
    Type: Database references, Structure summary