4H32

The crystal structure of the hemagglutinin H17 derived the bat influenza A virus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.219 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Bat-derived influenza hemagglutinin H17 does not bind canonical avian or human receptors and most likely uses a unique entry mechanism.

Sun, X.Shi, Y.Lu, X.He, J.Gao, F.Yan, J.Qi, J.Gao, G.F.

(2013) Cell Rep 3: 769-778

  • DOI: 10.1016/j.celrep.2013.01.025
  • Primary Citation of Related Structures:  
    4H32

  • PubMed Abstract: 
  • A new influenza-like virus genome (H17N10) was recently discovered in bats and offers a new perspective about the origin and evolution of influenza viruses. The viral envelope glycoprotein hemagglutinin (HA) is responsible for influenza virus recepto ...

    A new influenza-like virus genome (H17N10) was recently discovered in bats and offers a new perspective about the origin and evolution of influenza viruses. The viral envelope glycoprotein hemagglutinin (HA) is responsible for influenza virus receptor binding, fusion, and entry into the cell; therefore, the structure and function of HA H17 was characterized. The 2.70 Å resolution crystal structure revealed that H17 has a typical influenza A virus HA fold, but with some special features, including a distorted putative sialic acid (SA) binding site and low thermostability. No binding to either the canonical human α2,6 SA-linkage or avian α2,3 SA-linkage receptor was observed. Furthermore, H17 glycan binding was not detected using a chip covering more than 600 glycans. Our results demonstrate that H17 is unique among characterized HAs and that the bat-derived influenza virus may use a different entry mechanism compared to canonical influenza viruses.


    Organizational Affiliation

    CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HemagglutininACEGIK320Influenza A virus (A/little yellow-shouldered bat/Guatemala/060/2010(H17N10))Mutation(s): 0 
Gene Names: HA
Find proteins for H6QM93 (Influenza A virus)
Explore H6QM93 
Go to UniProtKB:  H6QM93
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HemagglutininBDFHJL171Influenza A virus (A/little yellow-shouldered bat/Guatemala/060/2010(H17N10))Mutation(s): 0 
Gene Names: HA
Find proteins for H6QM93 (Influenza A virus)
Explore H6QM93 
Go to UniProtKB:  H6QM93
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download CCD File 
A, C, E, G, H, I, K
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.219 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.149α = 90
b = 101.84β = 90
c = 497.091γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
PHASESphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-07-10
    Type: Initial release
  • Version 1.1: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Database references, Derived calculations, Structure summary