6IDB

Crystal structure of H7 hemagglutinin mutant H7-SVTQ ( A138S, P221T, L226Q) with 6'SLN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.502 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Avian-to-Human Receptor-Binding Adaptation of Avian H7N9 Influenza Virus Hemagglutinin.

Xu, Y.Peng, R.Zhang, W.Qi, J.Song, H.Liu, S.Wang, H.Wang, M.Xiao, H.Fu, L.Fan, Z.Bi, Y.Yan, J.Shi, Y.Gao, G.F.

(2019) Cell Rep 29: 2217

  • DOI: 10.1016/j.celrep.2019.10.047
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Since 2013, H7N9 avian influenza viruses (AIVs) have caused more than 1,600 human infections, posing a threat to public health. An emerging concern is whether H7N9 AIVs will cause pandemics among humans. Molecular analysis of hemagglutinin (HA), whic ...

    Since 2013, H7N9 avian influenza viruses (AIVs) have caused more than 1,600 human infections, posing a threat to public health. An emerging concern is whether H7N9 AIVs will cause pandemics among humans. Molecular analysis of hemagglutinin (HA), which is a critical determinant of interspecies transmission, shows that the current H7N9 AIVs are still dual-receptor tropic, indicating limited human-to-human transmission potency. Mutagenesis and structural studies reveal that a G186V substitution is sufficient for H7N9 AIVs to acquire human receptor-binding capacity, and a Q226L substitution would favor binding to both avian and human receptors only when paired with A138/V186/P221 hydrophobic residues. These data suggest a different evolutionary route of H7N9 viruses compared to other AIV-subtype HAs.


    Organizational Affiliation

    Laboratory of Protein Engineering and Vaccines, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.,CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing 100101, China.,CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing 100101, China; Center for Influenza Research and Early-Warning, Chinese Academy of Sciences (CASCIRE), Beijing 100101, China.,Research Network of Immunity and Health (RNIH), Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing 100101, China.,CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing 100101, China; Laboratory of Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, Nanning 530004, China.,School of Life Sciences, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing 100101, China; Research Network of Immunity and Health (RNIH), Beijing Institutes of Life Science, Chinese Academy of Sciences, Beijing 100101, China; Laboratory of Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, Nanning 530004, China; Laboratory of Protein Engineering and Vaccines, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China; Center for Influenza Research and Early-Warning, Chinese Academy of Sciences (CASCIRE), Beijing 100101, China; Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China; Shenzhen Key Laboratory of Pathogen and Immunity, Shenzhen Third People's Hospital, Shenzhen 518112, China. Electronic address: gaof@im.ac.cn.,Center for Influenza Research and Early-Warning, Chinese Academy of Sciences (CASCIRE), Beijing 100101, China; Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China; Shenzhen Key Laboratory of Pathogen and Immunity, Shenzhen Third People's Hospital, Shenzhen 518112, China.,School of Life Sciences, University of Science and Technology of China, Hefei 230026, China; CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing 100101, China.,CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing 100101, China; Center for Influenza Research and Early-Warning, Chinese Academy of Sciences (CASCIRE), Beijing 100101, China; Savaid Medical School, University of Chinese Academy of Sciences, Beijing 101408, China; Shenzhen Key Laboratory of Pathogen and Immunity, Shenzhen Third People's Hospital, Shenzhen 518112, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin HA1 chain
A
321Influenza A virusMutation(s): 3 
Gene Names: HA
Find proteins for R4NN21 (Influenza A virus)
Go to UniProtKB:  R4NN21
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin HA2 chain
B
177Influenza A virusMutation(s): 0 
Gene Names: HA
Find proteins for R4NN21 (Influenza A virus)
Go to UniProtKB:  R4NN21
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GAL
Query on GAL

Download SDF File 
Download CCD File 
A
BETA-D-GALACTOSE
C6 H12 O6
WQZGKKKJIJFFOK-FPRJBGLDSA-N
 Ligand Interaction
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
SIA
Query on SIA

Download SDF File 
Download CCD File 
A
O-SIALIC ACID
C11 H19 N O9
SQVRNKJHWKZAKO-YRMXFSIDSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.502 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.199 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 115.956α = 90.00
b = 115.956β = 90.00
c = 297.050γ = 120.00
Software Package:
Software NamePurpose
HKL-3000data reduction
PHENIXrefinement
HKL-3000data scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-11-27
    Type: Initial release
  • Version 1.1: 2019-12-04
    Type: Database references