1EO8

INFLUENZA VIRUS HEMAGGLUTININ COMPLEXED WITH A NEUTRALIZING ANTIBODY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report



Literature

Structural evidence for recognition of a single epitope by two distinct antibodies.

Fleury, D.Daniels, R.S.Skehel, J.J.Knossow, M.Bizebard, T.

(2000) Proteins 40: 572-578

  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The structure of a complex between the hemagglutinin of influenza virus and the Fab of a neutralizing antibody was determined by X-ray crystallography at 2.8 A resolution. This antibody and another which has only 56% sequence identity bind to the sam ...

    The structure of a complex between the hemagglutinin of influenza virus and the Fab of a neutralizing antibody was determined by X-ray crystallography at 2.8 A resolution. This antibody and another which has only 56% sequence identity bind to the same epitope with very similar affinities and in the same orientation. One third of the interactions is conserved in the two complexes; a significant proportion of the interactions that differ are established by residues of the H3 complementarity-determining regions (CDR) which adopt distinct conformations in the two antibodies. This demonstrates that there is a definite flexibility in the selection of antibodies that bind to a given epitope, despite the high affinity of their complexes. This flexibility allows the humoral immune response to be redundant, a feature that may be useful in achieving longer lasting protection against evolving viral pathogens.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Diffraction Studies of Complexes between an Influenza Hemagglutinin and Fab Fragments of Two Different Monoclonal Antibodies
      Gigant, B., Fleury, D., Bizebard, T., Skehel, J.J., Knossow, M.
      (1995) Proteins 23: 115
    • Structure of the Haemagglutinin Membrane Glycoprotein of Influenza Virus at 3 A Resolution
      Wilson, I.A., Skehel, J.J., Wiley, D.C.
      (1981) Nature 289: 366

    Organizational Affiliation

    Laboratoire d'Enzymologie et Biochimie Structurales, CNRS, France.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HEMAGGLUTININ (HA1 CHAIN)A328Influenza 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: 2
MoleculeChainsSequence LengthOrganismDetails
HEMAGGLUTININ (HA2 CHAIN)B175Influenza 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 LengthOrganismDetails
ANTIBODY (LIGHT CHAIN)L210Mus musculusMutation(s): 0 
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  • Reference Sequence

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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
ANTIBODY (HEAVY CHAIN)H217Mus musculusMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Oligosaccharides
Entity ID: 5
MoleculeChainsChain Length2D Diagram Glycosylation
alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
D
3 N-Glycosylation
Entity ID: 6
MoleculeChainsChain Length2D Diagram Glycosylation
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
A
2 N-Glycosylation
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download CCD File 
A, B
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.196 
  • Space Group: P 3 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 138.15α = 90
b = 138.15β = 90
c = 129.5γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
X-PLORrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-04-12
    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 1.3: 2017-10-04
    Changes: Refinement description
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Structure summary