1HTM

STRUCTURE OF INFLUENZA HAEMAGGLUTININ AT THE PH OF MEMBRANE FUSION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of influenza haemagglutinin at the pH of membrane fusion.

Bullough, P.A.Hughson, F.M.Skehel, J.J.Wiley, D.C.

(1994) Nature 371: 37-43

  • DOI: 10.1038/371037a0

  • PubMed Abstract: 
  • Low pH induces a conformational change in the influenza virus haemagglutinin, which then mediates fusion of the viral and host cell membranes. The three-dimensional structure of a fragment of the haemagglutinin in this conformation reveals a major re ...

    Low pH induces a conformational change in the influenza virus haemagglutinin, which then mediates fusion of the viral and host cell membranes. The three-dimensional structure of a fragment of the haemagglutinin in this conformation reveals a major refolding of the secondary and tertiary structure of the molecule. The apolar fusion peptide moves at least 100 A to one tip of the molecule. At the other end a helical segment unfolds, a subdomain relocates reversing the chain direction, and part of the structure becomes disordered.


    Related Citations: 
    • Structure of the Haemagglutinin Membrane Glycoprotein of Influenza Virus at 3 Angstroms Resolution
      Wilson, I.A.,Skehel, J.J.,Wiley, D.C.
      (1981) Nature 289: 366
    • Changes in the Conformation of Influenza Virus Hemagglutinin at the Ph Optimum of Virus-Mediated Membrane Fusion
      Skehel, J.J.,Bayley, P.M.,Brown, E.B.,Martin, S.R.,Waterfield, M.D.,White, J.M.,Wilson, I.A.,Wiley, D.C.
      (1982) Proc.Natl.Acad.Sci.USA 79: 93
    • Analyses of the Antigenicity of Influenza Haemagglutinin at the Ph Optimum for Virus-Mediated Membrane Fusion
      Daniels, R.S.,Douglas, A.R.,Skehel, J.J.
      (1983) J.Gen.Virol. 64: 1264
    • Crystals of a Fragment of Influenza Haemagglutinin in the Low Ph Induced Conformation
      Bullough, P.A.,Hughson, F.M.,Treharne, A.C.,Ruigrok, R.W.H.,Skehel, J.J.,Wiley, D.C.
      (1994) J.Mol.Biol. 236: 1262
    • Refinement of the Influenza Virus Hemagglutinin by Simulated Annealing
      Weis, W.I.,Brunger, A.T.,Skehel, J.J.,Wiley, D.C.
      (1990) J.Mol.Biol. 212: 737
    • Studies on the Structure of the Influenza Virus Haemagglutinin at the Ph of Membrane Fusion
      Ruigrok, R.W.H.,Aitken, A.,Calder, L.J.,Martin, S.R.,Skehel, J.J.,Wharton, S.A.,Weis, W.,Wiley, D.C.
      (1988) J.Gen.Virol. 69: 2785


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Harvard University, Cambridge, Massachusetts 02138.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HEMAGGLUTININ HA1 CHAIN
A, C, E
27Influenza A virus (strain A/Aichi/2/1968 H3N2)Gene Names: HA
Find proteins for P03437 (Influenza A virus (strain A/Aichi/2/1968 H3N2))
Go to UniProtKB:  P03437
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
HEMAGGLUTININ HA2 CHAIN
B, D, F
138Influenza A virus (strain A/Aichi/2/1968 H3N2)Gene Names: HA
Find proteins for P03437 (Influenza A virus (strain A/Aichi/2/1968 H3N2))
Go to UniProtKB:  P03437
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.222 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 168.700α = 90.00
b = 231.700β = 90.00
c = 53.800γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-02-14
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance