4NRJ

Structure of hemagglutinin with F95Y mutation of influenza virus B/Lee/40


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.53 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The roles of hemagglutinin Phe-95 in receptor binding and pathogenicity of influenza B virus.

Ni, F.Nnadi Mbawuike, I.Kondrashkina, E.Wang, Q.

(2014) Virology 450-451: 71-83

  • DOI: 10.1016/j.virol.2013.11.038
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Diverged ~4000 years ago, influenza B virus has several important differences from influenza A virus, including lower receptor-binding affinity and highly restricted host range. Based on our prior structural studies, we hypothesized that a single-res ...

    Diverged ~4000 years ago, influenza B virus has several important differences from influenza A virus, including lower receptor-binding affinity and highly restricted host range. Based on our prior structural studies, we hypothesized that a single-residue difference in the receptor-binding site of hemagglutinin (HA), Phe-95 in influenza B virus versus Tyr-98 in influenza A/H1-H15, is possibly a key determinant for the low receptor-binding affinity. Here we demonstrate that the mutation Phe95→Tyr in influenza B virus HA restores all three hydrogen bonds made by Tyr-98 in influenza A/H1-15 HA and has the potential to enhance receptor binding. However, the full realization of this potential is influenced by the local environment into which the mutation is introduced. The binding and replication of the recombinant viruses correlate well with the receptor-binding capabilities of HA. These results are discussed in relation to the roles of Phe-95 in receptor binding and pathogenicity of influenza B virus.


    Organizational Affiliation

    Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; Department of Bioengineering, Rice University, 6100 Main Street, Houston, TX 77005, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HEMAGGLUTININ HA1 CHAIN
A, C, E
346Influenza B virus (strain B/Lee/1940)Mutation(s): 1 
Gene Names: HA
Find proteins for P03460 (Influenza B virus (strain B/Lee/1940))
Go to UniProtKB:  P03460
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
HEMAGGLUTININ HA2 CHAIN
B, D, F
182Influenza B virus (strain B/Lee/1940)Mutation(s): 0 
Gene Names: HA
Find proteins for P03460 (Influenza B virus (strain B/Lee/1940))
Go to UniProtKB:  P03460
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BMA
Query on BMA

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.53 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.187 
  • Space Group: P 21 2 21
Unit Cell:
Length (Å)Angle (°)
a = 83.690α = 90.00
b = 128.600β = 90.00
c = 211.180γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
PHASESphasing
SCALAdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-03-12
    Type: Initial release