4LN4

The crystal structure of hemagglutinin form a h7n9 influenza virus (a/shanghai/1/2013) in complex with lstb


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Analysis of the Hemagglutinin from the Recent 2013 H7N9 Influenza Virus.

Yang, H.Carney, P.J.Chang, J.C.Villanueva, J.M.Stevens, J.

(2013) J.Virol. 87: 12433-12446

  • DOI: 10.1128/JVI.01854-13
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • In March 2013, the Chinese Center for Disease Control and Prevention reported human infections with an H7N9 influenza virus, and by 20 July 2013, the numbers of laboratory-confirmed cases had climbed to 134, including 43 fatalities and 127 hospitaliz ...

    In March 2013, the Chinese Center for Disease Control and Prevention reported human infections with an H7N9 influenza virus, and by 20 July 2013, the numbers of laboratory-confirmed cases had climbed to 134, including 43 fatalities and 127 hospitalizations. The newly emerging H7N9 viruses constitute an obvious public health concern because of the apparent severity of this outbreak. Here we focus on the hemagglutinins (HAs) of these viruses and assess their receptor binding phenotype in relation to previous HAs studied. Glycan microarray and kinetic analyses of recombinant A(H7N9) HAs were performed to compare the receptor binding profile of wild-type receptor binding site variants at position 217, a residue analogous to one of two positions known to switch avian to human receptor preference in H2N2 and H3N2 viruses. Two recombinant A(H7N9) HAs were structurally characterized, and a mutational study of the receptor binding site was performed to analyze important residues that can affect receptor preference and affinity. Results highlight a weak human receptor preference of the H7N9 HAs, suggesting that these viruses require further adaptation in order to adapt fully to humans.


    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
325Influenza A virusMutation(s): 0 
Gene Names: HA
Find proteins for R4NN21 (Influenza A virus)
Go to UniProtKB:  R4NN21
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin
B, D, F, H, J, L
181Influenza A virusMutation(s): 0 
Gene Names: HA
Find proteins for R4NN21 (Influenza A virus)
Go to UniProtKB:  R4NN21
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BMA
Query on BMA

Download SDF File 
Download CCD File 
A, C, E
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NAG
Query on NAG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.201 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 154.006α = 90.00
b = 153.959β = 90.00
c = 153.519γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHASERphasing
HKL-2000data reduction
REFMACrefinement
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-10-02
    Type: Initial release
  • Version 1.1: 2013-10-30
    Type: Database references