3UYW

Crystal structures of globular head of 2009 pandemic H1N1 hemagglutinin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.903 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


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Literature

Structural vaccinology: structure-based design of influenza A virus hemagglutinin subtype-specific subunit vaccines

Xuan, C.L.Shi, Y.Qi, J.X.Zhang, W.Xiao, H.X.Gao, G.F.

(2011) Protein Cell 2: 997-1005

  • DOI: 10.1007/s13238-011-1134-y
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • There is a great need for new vaccine development against influenza A viruses due to the drawbacks of traditional vaccines that are mainly prepared using embryonated eggs. The main component of the current split influenza A virus vaccine is viral hem ...

    There is a great need for new vaccine development against influenza A viruses due to the drawbacks of traditional vaccines that are mainly prepared using embryonated eggs. The main component of the current split influenza A virus vaccine is viral hemagglutinin (HA) which induces a strong antibody-mediated immune response. To develop a modern vaccine against influenza A viruses, the current research has been focused on the universal vaccines targeting viral M2, NP and HA proteins. Crystallographic studies have shown that HA forms a trimer embedded on the viral envelope surface, and each monomer consists of a globular head (HA1) and a "rod-like" stalk region (HA2), the latter being more conserved among different HA subtypes and being the primary target for universal vaccines. In this study, we rationally designed the HA head based on the crystal structure of the 2009-pandemic influenza A (H1N1) virus HA as a model, tested its immunogenicity in mice, solved its crystal structure and further examined its immunological characteristics. The results show that the HA globular head can be easily prepared by in vitro refolding in an E. coli expression system, which maintains its intact structure and allows for the stimulation of a strong immune response. Together with recent reports on some similar HA globular head preparations we conclude that structure-based rational design of the HA globular head can be used for subtype-specific vaccines against influenza viruses.


    Organizational Affiliation

    CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin
A, B, C, D
214Influenza A virus (strain swl A/California/04/2009 H1N1)Mutation(s): 0 
Gene Names: HA
Find proteins for C3W5S1 (Influenza A virus (strain swl A/California/04/2009 H1N1))
Go to UniProtKB:  C3W5S1
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TAU
Query on TAU

Download SDF File 
Download CCD File 
A, C
2-AMINOETHANESULFONIC ACID
C2 H7 N O3 S
XOAAWQZATWQOTB-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.903 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.184 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 38.670α = 94.46
b = 65.916β = 89.97
c = 79.485γ = 94.88
Software Package:
Software NamePurpose
ADSCdata collection
HKL-2000data scaling
PHENIXrefinement
PHASERphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-10-24
    Type: Initial release