4XQ5

Human-infecting H10N8 influenza virus retains strong preference for avian-type receptors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.592 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

A Human-Infecting H10N8 Influenza Virus Retains a Strong Preference for Avian-type Receptors.

Zhang, H.de Vries, R.P.Tzarum, N.Zhu, X.Yu, W.McBride, R.Paulson, J.C.Wilson, I.A.

(2015) Cell Host Microbe 17: 377-384

  • DOI: 10.1016/j.chom.2015.02.006
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Recent avian-origin H10N8 influenza A viruses that have infected humans pose a potential pandemic threat. Alterations in the viral surface glycoprotein, hemagglutinin (HA), typically are required for influenza A viruses to cross the species barrier f ...

    Recent avian-origin H10N8 influenza A viruses that have infected humans pose a potential pandemic threat. Alterations in the viral surface glycoprotein, hemagglutinin (HA), typically are required for influenza A viruses to cross the species barrier for adaptation to a new host, but whether H10N8 contains adaptations supporting human infection remains incompletely understood. We investigated whether H10N8 HA can bind human receptors. Sialoside glycan microarray analysis showed that the H10 HA retains a strong preference for avian receptor analogs and negligible binding to human receptor analogs. Crystal structures of H10 HA with avian and human receptor analogs revealed the basis for preferential recognition of avian-like receptors. Furthermore, introduction of mutations into the H10 receptor-binding site (RBS) known to convert other HA subtypes from avian to human receptor specificity failed to switch preference to human receptors. Collectively, these findings suggest that the current H10N8 human isolates 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 chain
A, C, E
323Influenza A virusMutation(s): 0 
Gene Names: HA
Find proteins for A0A059T4A1 (Influenza A virus)
Go to UniProtKB:  A0A059T4A1
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin HA2 chain
B, D, F
180Influenza A virusMutation(s): 0 
Gene Names: HA
Find proteins for A0A059T4A1 (Influenza A virus)
Go to UniProtKB:  A0A059T4A1
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.592 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.191 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 64.069α = 90.00
b = 242.992β = 111.26
c = 70.381γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHENIXphasing
PHENIXrefinement
PHENIXmodel building
HKL-2000data reduction
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-04-01
    Type: Initial release
  • Version 1.1: 2017-11-22
    Type: Derived calculations, Refinement description, Source and taxonomy