4KOL

The structure of hemagglutinin from avian-origin H7N9 influenza virus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.799 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.230 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structures and receptor binding of hemagglutinins from human-infecting H7N9 influenza viruses.

Shi, Y.Zhang, W.Wang, F.Qi, J.Wu, Y.Song, H.Gao, F.Bi, Y.Zhang, Y.Fan, Z.Qin, C.Sun, H.Liu, J.Haywood, J.Liu, W.Gong, W.Wang, D.Shu, Y.Wang, Y.Yan, J.Gao, G.F.

(2013) Science 342: 243-247

  • DOI: 10.1126/science.1242917
  • Primary Citation of Related Structures:  4KOM, 4KON, 4LCX, 4LKG, 4LKH, 4LKI, 4LKJ, 4LKK

  • PubMed Abstract: 
  • An avian-origin human-infecting influenza (H7N9) virus was recently identified in China. We have evaluated the viral hemagglutinin (HA) receptor-binding properties of two human H7N9 isolates, A/Shanghai/1/2013 (SH-H7N9) (containing the avian-signatur ...

    An avian-origin human-infecting influenza (H7N9) virus was recently identified in China. We have evaluated the viral hemagglutinin (HA) receptor-binding properties of two human H7N9 isolates, A/Shanghai/1/2013 (SH-H7N9) (containing the avian-signature residue Gln(226)) and A/Anhui/1/2013 (AH-H7N9) (containing the mammalian-signature residue Leu(226)). We found that SH-H7N9 HA preferentially binds the avian receptor analog, whereas AH-H7N9 HA binds both avian and human receptor analogs. Furthermore, an AH-H7N9 mutant HA (Leu(226) → Gln) was found to exhibit dual receptor-binding property, indicating that other amino acid substitutions contribute to the receptor-binding switch. The structures of SH-H7N9 HA, AH-H7N9 HA, and its mutant in complex with either avian or human receptor analogs show how AH-H7N9 can bind human receptors while still retaining the avian receptor-binding property.


    Organizational Affiliation

    Research Network of Immunity and Health, Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin HA1
A
314Influenza A virusGene Names: HA
Find proteins for V5IRU4 (Influenza A virus)
Go to UniProtKB:  V5IRU4
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin HA2
B
169Influenza A virusGene Names: HA
Find proteins for V5IRU3 (Influenza A virus)
Go to UniProtKB:  V5IRU3
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.799 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.230 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 116.898α = 90.00
b = 116.898β = 90.00
c = 296.588γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
HKL-2000data scaling
ADSCdata collection
PHENIXrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-06
    Type: Initial release