2RFT

Crystal structure of influenza B virus hemagglutinin in complex with LSTa receptor analog


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.299 
  • R-Value Work: 0.280 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural basis for receptor specificity of influenza B virus hemagglutinin.

Wang, Q.Tian, X.Chen, X.Ma, J.

(2007) Proc.Natl.Acad.Sci.Usa 104: 16874-16879

  • DOI: 10.1073/pnas.0708363104
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Receptor-binding specificity of HA, the major surface glycoprotein of influenza virus, primarily determines the host ranges that the virus can infect. Influenza type B virus almost exclusively infects humans and contributes to the annual "flu" sickne ...

    Receptor-binding specificity of HA, the major surface glycoprotein of influenza virus, primarily determines the host ranges that the virus can infect. Influenza type B virus almost exclusively infects humans and contributes to the annual "flu" sickness. Here we report the structures of influenza B virus HA in complex with human and avian receptor analogs, respectively. These structures provide a structural basis for the different receptor-binding properties of influenza A and B virus HA molecules and for the ability of influenza B virus HA to distinguish human and avian receptors. The structure of influenza B virus HA with avian receptor analog also reveals how mutations in the region of residues 194 to 196, which are frequently observed in egg-adapted and naturally occurring variants, directly affect the receptor binding of the resultant virus strains. Furthermore, these structures of influenza B virus HA are compared with known structures of influenza A virus HAs, which suggests the role of the residue at 222 as a key and likely a universal determinant for the different binding modes of human receptor analogs by different HA molecules.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA. qinghuaw@bcm.tmc.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Influenza B hemagglutinin (HA)
A
344Influenza B virus (strain B/Hong Kong/8/1973)Mutation(s): 0 
Gene Names: HA
Find proteins for P03462 (Influenza B virus (strain B/Hong Kong/8/1973))
Go to UniProtKB:  P03462
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Influenza B hemagglutinin (HA)
B
176Influenza B virus (strain B/Hong Kong/8/1973)Mutation(s): 0 
Gene Names: HA
Find proteins for P03462 (Influenza B virus (strain B/Hong Kong/8/1973))
Go to UniProtKB:  P03462
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BGC
Query on BGC

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Download CCD File 
A
BETA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-VFUOTHLCSA-N
 Ligand Interaction
GAL
Query on GAL

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

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Download CCD File 
A
2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE
C8 H15 N O6
OVRNDRQMDRJTHS-PVFLNQBWSA-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: 2.8 Å
  • R-Value Free: 0.299 
  • R-Value Work: 0.280 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 98.328α = 90.00
b = 98.328β = 90.00
c = 135.988γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data scaling
AMoREphasing
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: 2008-02-05
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Non-polymer description, Version format compliance