4LXV

Crystal Structure of the Hemagglutinin from a H1N1pdm A/WASHINGTON/5/2011 virus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Stability of Influenza A(H1N1)pdm09 Virus Hemagglutinins.

Yang, H.Chang, J.C.Guo, Z.Carney, P.J.Shore, D.A.Donis, R.O.Cox, N.J.Villanueva, J.M.Klimov, A.I.Stevens, J.

(2014) J.Virol. 88: 4828-4838

  • DOI: 10.1128/JVI.02278-13

  • PubMed Abstract: 
  • The noncovalent interactions that mediate trimerization of the influenza hemagglutinin (HA) are important determinants of its biological activities. Recent studies have demonstrated that mutations in the HA trimer interface affect the thermal and pH ...

    The noncovalent interactions that mediate trimerization of the influenza hemagglutinin (HA) are important determinants of its biological activities. Recent studies have demonstrated that mutations in the HA trimer interface affect the thermal and pH sensitivities of HA, suggesting a possible impact on vaccine stability (). We used size exclusion chromatography analysis of recombinant HA ectodomain to compare the differences among recombinant trimeric HA proteins from early 2009 pandemic H1N1 viruses, which dissociate to monomers, with those of more recent virus HAs that can be expressed as trimers. We analyzed differences among the HA sequences and identified intermolecular interactions mediated by the residue at position 374 (HA0 numbering) of the HA2 subdomain as critical for HA trimer stability. Crystallographic analyses of HA from the recent H1N1 virus A/Washington/5/2011 highlight the structural basis for this observed phenotype. It remains to be seen whether more recent viruses with this mutation will yield more stable vaccines in the future.


    Organizational Affiliation

    Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin
A, C, E, G, I, K
332Influenza A virusMutation(s): 0 
Gene Names: HA
Find proteins for J7MFR5 (Influenza A virus)
Go to UniProtKB:  J7MFR5
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin
B, D, F, H, J, L
182Influenza A virusMutation(s): 0 
Gene Names: HA
Find proteins for J7MFR5 (Influenza A virus)
Go to UniProtKB:  J7MFR5
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, C, E, G, I, K
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.205 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 73.241α = 90.00
b = 226.002β = 90.00
c = 271.003γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
PHASERphasing
HKL-2000data scaling
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-02-26
    Type: Initial release
  • Version 1.1: 2014-04-30
    Type: Database references
  • Version 1.2: 2014-12-10
    Type: Structure summary