1KEN

INFLUENZA VIRUS HEMAGGLUTININ COMPLEXED WITH AN ANTIBODY THAT PREVENTS THE HEMAGGLUTININ LOW PH FUSOGENIC TRANSITION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.323 
  • R-Value Work: 0.255 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

An Antibody that Prevents the Hemagglutinin Low pH Fusogenic Transition

Barbey-Martin, C.Gigant, B.Bizebard, T.Calder, L.J.Wharton, S.A.Skehel, J.J.Knossow, M.

(2002) Virology 294: 70-74

  • DOI: 10.1006/viro.2001.1320
  • Primary Citation of Related Structures:  
    1KEN

  • PubMed Abstract: 
  • We have determined the structure of a complex of influenza hemagglutinin (HA) with an antibody that binds simultaneously to the membrane-distal domains of two HA monomers, effectively cross-linking them. The antibody prevents the low pH structural transition of HA that is required for its membrane fusion activity, providing evidence that a rearrangement of HA membrane-distal domains is an essential component of the transition ...

    We have determined the structure of a complex of influenza hemagglutinin (HA) with an antibody that binds simultaneously to the membrane-distal domains of two HA monomers, effectively cross-linking them. The antibody prevents the low pH structural transition of HA that is required for its membrane fusion activity, providing evidence that a rearrangement of HA membrane-distal domains is an essential component of the transition.


    Related Citations: 
    • A Neutralizing Antibody Fab-Influenza Haemagglutinin Complex with an Unprecedented 2:1 Stoichiometry:Characterization and Crystallization
      Gigant, B., Barbey-Martin, C., Bizebard, T., Fleury, D., Daniels, R., Skehel, J.J., Knossow, M.
      (2000) Acta Crystallogr D Biol Crystallogr 56: 1067

    Organizational Affiliation

    Laboratoire d'Enzymologie et Biochimie Structurales, UPR 9063 CNRS, Bât. 34, CNRS, 91198 Gif-sur-Yvette Cedex, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
hemagglutinin HA1 ACE328Influenza A virus (A/X-31(H3N2))Mutation(s): 0 
Gene Names: HA
Find proteins for P03438 (Influenza A virus (strain A/X-31 H3N2))
Explore P03438 
Go to UniProtKB:  P03438
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
hemagglutinin HA2 BDF175Influenza A virus (A/X-31(H3N2))Mutation(s): 0 
Find proteins for P03437 (Influenza A virus (strain A/Aichi/2/1968 H3N2))
Explore P03437 
Go to UniProtKB:  P03437
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
influenza virus infectivity neutralizing antibody (light chain) LU213Mus musculusMutation(s): 0 
Gene Names: Igkc
Find proteins for P01837 (Mus musculus)
Explore P01837 
Go to UniProtKB:  P01837
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
influenza virus infectivity neutralizing antibody (heavy chain) HT221Mus musculusMutation(s): 0 
Gene Names: Ighg1Igh-4
Find proteins for P01869 (Mus musculus)
Explore P01869 
Go to UniProtKB:  P01869
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 5
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
G, I, J
3 N-Glycosylation Oligosaccharides Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.323 
  • R-Value Work: 0.255 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 143.041α = 90
b = 315.588β = 90
c = 97.029γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing
CNSrefinement
CCP4data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-04-24
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary