5K9K

Crystal structure of multidonor HV6-1-class broadly neutralizing Influenza A antibody 56.a.09 in complex with Hemagglutinin Hong Kong 1968.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.97 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.227 

Starting Models: experimental
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Ligand Structure Quality Assessment 


This is version 2.1 of the entry. See complete history


Literature

Vaccine-Induced Antibodies that Neutralize Group 1 and Group 2 Influenza A Viruses.

Joyce, M.G.Wheatley, A.K.Thomas, P.V.Chuang, G.Y.Soto, C.Bailer, R.T.Druz, A.Georgiev, I.S.Gillespie, R.A.Kanekiyo, M.Kong, W.P.Leung, K.Narpala, S.N.Prabhakaran, M.S.Yang, E.S.Zhang, B.Zhang, Y.Asokan, M.Boyington, J.C.Bylund, T.Darko, S.Lees, C.R.Ransier, A.Shen, C.H.Wang, L.Whittle, J.R.Wu, X.Yassine, H.M.Santos, C.Matsuoka, Y.Tsybovsky, Y.Baxa, U.Mullikin, J.C.Subbarao, K.Douek, D.C.Graham, B.S.Koup, R.A.Ledgerwood, J.E.Roederer, M.Shapiro, L.Kwong, P.D.Mascola, J.R.McDermott, A.B.

(2016) Cell 166: 609-623

  • DOI: https://doi.org/10.1016/j.cell.2016.06.043
  • Primary Citation of Related Structures:  
    5K9J, 5K9K, 5K9O, 5K9Q, 5KAN, 5KAQ

  • PubMed Abstract: 

    Antibodies capable of neutralizing divergent influenza A viruses could form the basis of a universal vaccine. Here, from subjects enrolled in an H5N1 DNA/MIV-prime-boost influenza vaccine trial, we sorted hemagglutinin cross-reactive memory B cells and identified three antibody classes, each capable of neutralizing diverse subtypes of group 1 and group 2 influenza A viruses. Co-crystal structures with hemagglutinin revealed that each class utilized characteristic germline genes and convergent sequence motifs to recognize overlapping epitopes in the hemagglutinin stem. All six analyzed subjects had sequences from at least one multidonor class, and-in half the subjects-multidonor-class sequences were recovered from >40% of cross-reactive B cells. By contrast, these multidonor-class sequences were rare in published antibody datasets. Vaccination with a divergent hemagglutinin can thus increase the frequency of B cells encoding broad influenza A-neutralizing antibodies. We propose the sequence signature-quantified prevalence of these B cells as a metric to guide universal influenza A immunization strategies.


  • Organizational Affiliation

    Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
56.a.09 Heavy chainA,
D [auth H]
229Homo sapiensMutation(s): 0 
Entity Groups  
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Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
56.a.09 Light chainB,
E [auth L]
215Homo sapiensMutation(s): 0 
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
HemagglutininC [auth I],
F
503Influenza A virus (A/Hong Kong/1/1968(H3N2))Mutation(s): 0 
Gene Names: HA
UniProt
Find proteins for Q91MA7 (Influenza A virus (strain A/Hong Kong/1/1968 H3N2))
Explore Q91MA7 
Go to UniProtKB:  Q91MA7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ91MA7
Glycosylation
Glycosylation Sites: 6
Sequence Annotations
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  • Reference Sequence
Oligosaccharides

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Entity ID: 4
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseG [auth C],
K [auth J],
L [auth K],
P
5N-Glycosylation
Glycosylation Resources
GlyTouCan:  G22768VO
GlyCosmos:  G22768VO
GlyGen:  G22768VO
Entity ID: 5
MoleculeChains Length2D Diagram Glycosylation3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseH [auth D],
N
3N-Glycosylation
Glycosylation Resources
GlyTouCan:  G15407YE
GlyCosmos:  G15407YE
GlyGen:  G15407YE
Entity ID: 6
MoleculeChains Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseI [auth E]2N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Entity ID: 7
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-4)-alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseJ [auth G]5N-Glycosylation
Glycosylation Resources
GlyTouCan:  G98804PG
GlyCosmos:  G98804PG
GlyGen:  G98804PG
Entity ID: 8
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-4)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
M
6N-Glycosylation
Glycosylation Resources
GlyTouCan:  G34220DL
GlyCosmos:  G34220DL
GlyGen:  G34220DL
Entity ID: 9
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
O
5N-Glycosylation
Glycosylation Resources
GlyTouCan:  G94626GC
GlyCosmos:  G94626GC
GlyGen:  G94626GC
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.97 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.227 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 123.897α = 90
b = 136.559β = 90
c = 311.327γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-12-21
    Type: Initial release
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary
  • Version 2.1: 2023-09-27
    Changes: Data collection, Database references, Refinement description, Structure summary