4N5J

Crystal structure of hemagglutinin from an H7N9 influenza virus

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.228 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Preferential recognition of avian-like receptors in human influenza A H7N9 viruses.

Xu, R., de Vries, R.P., Zhu, X., Nycholat, C.M., McBride, R., Yu, W., Paulson, J.C., Wilson, I.A.

(2013) Science 342: 1230-1235

  • DOI: 10.1126/science.1243761
  • Structures With Same Primary Citation

  • PubMed Abstract: 

    • The 2013 outbreak of avian-origin H7N9 influenza in eastern China has raised concerns about its ability to transmit in the human population. The hemagglutinin glycoprotein of most human H7N9 viruses carries Leu(226), a residue linked to adaptation of ...

    The 2013 outbreak of avian-origin H7N9 influenza in eastern China has raised concerns about its ability to transmit in the human population. The hemagglutinin glycoprotein of most human H7N9 viruses carries Leu(226), a residue linked to adaptation of H2N2 and H3N2 pandemic viruses to human receptors. However, glycan array analysis of the H7 hemagglutinin reveals negligible binding to humanlike α2-6-linked receptors and strong preference for a subset of avian-like α2-3-linked glycans recognized by all avian H7 viruses. Crystal structures of H7N9 hemagglutinin and six hemagglutinin-glycan complexes have elucidated the structural basis for preferential recognition of avian-like receptors. These findings suggest that the current human H7N9 viruses are poorly adapted for efficient human-to-human transmission.

    Organizational Affiliation: 

    Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin HA1
A, C
321Influenza A virus (A/Shanghai/02/2013(H7N9))Mutation(s): 0 
Gene Names: HA, hemagglutinin
Find proteins for R4NN21 (Influenza A virus)
Go to UniProtKB:  R4NN21
Protein Feature View
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin HA2
B, D
183Influenza A virus (A/Shanghai/02/2013(H7N9))Mutation(s): 0 
Gene Names: HA, hemagglutinin
Find proteins for R4NN21 (Influenza A virus)
Go to UniProtKB:  R4NN21
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N		 Ligand Interaction
BMA
Query on BMA
Download CCD File 
A
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.228 
  • Space Group: P 21 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 154.513α = 90
b = 154.513β = 90
c = 154.513γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
Blu-Icedata collection

Structure Validation

View Full Validation Report


View more in-depth experimental data

Entry History 

Deposition Data

  • Deposited Date: 2013-10-10 
  • Released Date: 2013-12-18 
    • Deposition Author(s): Xu, R., Wilson, I.A.

Revision History 

  • Version 1.0: 2013-12-18
    Type: Initial release
  • Version 1.1: 2017-11-15
    Changes: Refinement description