1TI8

H7 Haemagglutinin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.300 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.230 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

H1 and H7 influenza haemagglutinin structures extend a structural classification of haemagglutinin subtypes.

Russell, R.J.Gamblin, S.J.Haire, L.F.Stevens, D.J.Xiao, B.Ha, Y.Skehel, J.J.

(2004) Virology 325: 287-296

  • DOI: https://doi.org/10.1016/j.virol.2004.04.040
  • Primary Citation of Related Structures:  
    1TI8

  • PubMed Abstract: 

    Comparing the structures of H3, H5 and H9 subtype haemagglutinins, we deduced a structural basis for including all 15 influenza subtypes in four clades. H3, H5 and H9 represent three of these clades; we now report the structure of an H7 HA as a representative of the fourth clade. We confirm the structure of the turn at the N-terminus of the conserved central alpha-helix of HA2, and the combination of ionisable residues near the "fusion peptide" as clade-specific features. We compare the structures of three H1 HAs with H5 HA in the same clade, to refine our previous classification and we confirm the division of the clades into two groups of two. We also show the roles of carbohydrate side chains in the esterase-fusion domain boundaries in the formation of clade-specific structural markers.


  • Organizational Affiliation

    MRC National Institute for Medical Research, London NW7 1AA, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
hemagglutinin314Influenza A virusMutation(s): 0 
UniProt
Find proteins for Q6GYW3 (Influenza A virus)
Explore Q6GYW3 
Go to UniProtKB:  Q6GYW3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ6GYW3
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
hemagglutinin172Influenza A virusMutation(s): 0 
UniProt
Find proteins for Q701T7 (Influenza A virus)
Explore Q701T7 
Go to UniProtKB:  Q701T7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ701T7
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.300 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.230 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 118.2α = 90
b = 118.2β = 90
c = 298.7γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-06-21
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Structure summary