2DWR

Crystal structure of the human Wa rotavirus VP8* carbohydrate-recognising domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.177 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Insight into Host Cell Carbohydrate-recognition by Human and Porcine Rotavirus from Crystal Structures of the Virion Spike Associated Carbohydrate-binding Domain (VP8*)

Blanchard, H.Yu, X.Coulson, B.S.von Itzstein, M.

(2007) J.Mol.Biol. 367: 1215-1226

  • DOI: 10.1016/j.jmb.2007.01.028
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Rotavirus infection leads to the death of half a million children annually. The exact specifics of interaction between rotavirus particles and host cells enabling invasion and infection have remained elusive. Host cell oligosaccharides are critical c ...

    Rotavirus infection leads to the death of half a million children annually. The exact specifics of interaction between rotavirus particles and host cells enabling invasion and infection have remained elusive. Host cell oligosaccharides are critical components, and their involvement aids the virus in cell-recognition and attachment, as well as dictation of the remarkable host-specificity that rotaviruses demonstrate. Interaction between the rotavirus spike-protein carbohydrate-binding domain (VP8*) and cell surface oligosaccharides facilitate virus recognition of host cells and attachment. Rotaviruses are considered, controversially, to recognise vastly different carbohydrate structures and either with incorporation of terminal sialic acid or without, as assessed by their ability to infect cells that have been pre-treated with sialidases. Herein, the X-ray crystallographic structures of VP8* from the sialidase insensitive Wa and the sialidase sensitive CRW-8 rotavirus strains that cause debilitating gastroenteritis in human and pig are reported. Striking differences are apparent regarding recognition of the sialic acid derivative methyl alpha-D-N-acetylneuraminide, presenting the first experimental evidence of the inability of the human rotavirus strain to bind this monosaccharide, that correlates with Wa and CRW-8 recognising sialidase-resistant and sialidase-sensitive receptors, respectively. Identified are structural features that provide insight in attainment of substrate specificity exhibited by porcine strains as compared to rhesus rotavirus. Revealed in the CRW-8 VP8* structure is an additional bound ligand that intriguingly, is within a cleft located equivalent to the carbohydrate-binding region of galectins, and is suggestive of a new region for interaction with cell-surface carbohydrates. This novel result and detailed comparison of our representative sialidase-sensitive CRW-8 and insensitive Wa VP8* structures with those reported leads to our hypothesis that this groove is used for binding carbohydrates, and that for the human strains, as for other sialidase-insensitive strains could represent a major oligosaccharide-binding region.


    Related Citations: 
    • Cloning, expression, purification, crystallization and preliminary X-ray diffraction analysis of the VP8* carbohydrate-binding protein of the human rotavirus strain Wa
      Kraschnefski, M.J.,Scott, S.A.,Holloway, G.,Coulson, B.S.,von Itzstein, M.,Blanchard, H.
      (2005) Acta Crystallogr.,Sect.F 61: 989


    Organizational Affiliation

    Institute for Glycomics, Griffith University, Gold Coast Campus, PMB 50 Gold Coast Mail Centre, Queensland, 9726, Australia. h.blanchard@griffith.edu.au




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Outer capsid protein
A
160Rotavirus A (strain RVA/Human/United States/Wa/1974/G1P1A[8])Mutation(s): 1 
Find proteins for P11193 (Rotavirus A (strain RVA/Human/United States/Wa/1974/G1P1A[8]))
Go to UniProtKB:  P11193
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
IPA
Query on IPA

Download SDF File 
Download CCD File 
A
ISOPROPYL ALCOHOL
2-PROPANOL
C3 H8 O
KFZMGEQAYNKOFK-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.177 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 74.762α = 90.00
b = 74.762β = 90.00
c = 70.090γ = 120.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
XNEMOdata collection
REFMACrefinement
FIPdata collection
AMoREphasing
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2006-08-16 
  • Released Date: 2007-04-03 
  • Deposition Author(s): Blanchard, H.

Revision History 

  • Version 1.0: 2007-04-03
    Type: Initial release
  • Version 1.1: 2008-04-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance