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 2.1 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: https://doi.org/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.

    • Organizational Affiliation: 

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


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
hemagglutinin HA1
A, C, E
328Influenza A virus (A/X-31(H3N2))Mutation(s): 0 
UniProt
Find proteins for P03438 (Influenza A virus (strain A/X-31 H3N2))
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Go to UniProtKB:  P03438
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03438
Glycosylation
Glycosylation Sites: 1
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
hemagglutinin HA2
B, D, F
175Influenza A virus (A/X-31(H3N2))Mutation(s): 0 
UniProt
Find proteins for P03437 (Influenza A virus (strain A/Aichi/2/1968 H3N2))
Explore P03437 
Go to UniProtKB:  P03437
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03437
Sequence Annotations
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
influenza virus infectivity neutralizing antibody (light chain)G [auth L],
I [auth U]		213Mus musculusMutation(s): 0 
UniProt
Find proteins for P01837 (Mus musculus)
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Go to UniProtKB:  P01837
Entity Groups  
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UniProt GroupP01837
Sequence Annotations
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
influenza virus infectivity neutralizing antibody (heavy chain)H,
J [auth T]		221Mus musculusMutation(s): 0 
UniProt
Find proteins for P01869 (Mus musculus)
Explore P01869 
Go to UniProtKB:  P01869
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UniProt GroupP01869
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  • Reference Sequence
Oligosaccharides

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Entity ID: 5
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseK [auth G],
L [auth I],
M [auth J]		3N-Glycosylation
Glycosylation Resources
GlyTouCan:  G62182OO
GlyCosmos:  G62182OO
GlyGen:  G62182OO
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
  • Version 2.1: 2024-10-09
    Changes: Data collection, Database references, Structure summary