2XBO

Equine Rhinitis A Virus in Complex with its Sialic Acid Receptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4 Å
  • R-Value Work: 0.247 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The Crystal Structure of Equine Rhinitis a Virus in Complex with its Sialic Acid Receptor.

Fry, E.E.Tuthill, T.J.Harlos, K.Walter, T.S.Rowlands, D.J.Stuart, D.I.

(2010) J.Gen.Virol. 91: 1971

  • DOI: 10.1099/vir.0.020420-0

  • PubMed Abstract: 
  • Equine rhinitis A virus (ERAV) shares many features with foot-and-mouth disease virus (FMDV) and both are classified within the genus Aphthovirus of the family Picornaviridae. ERAV is used as a surrogate for FMDV research as it does not require high- ...

    Equine rhinitis A virus (ERAV) shares many features with foot-and-mouth disease virus (FMDV) and both are classified within the genus Aphthovirus of the family Picornaviridae. ERAV is used as a surrogate for FMDV research as it does not require high-level biosecurity. In contrast to FMDV, which uses integrins as cellular receptors, the receptor for ERAV has been reported to involve the sugar moiety sialic acid. This study confirmed the importance of sialic acid for cell entry by ERAV and reports the crystal structure of ERAV particles complexed with the receptor analogue 3'-sialyllactose. The receptor is attached to the rim of a capsid pit adjacent to the major immunogenic site and distinct from the sialic acid binding site used by a related picornavirus, the cardiovirus Theiler's murine encephalitis virus. The structure of the major antigenic determinant of the virus, previously identified from antibody escape mutations, is also described as the EF loop of VP1, which forms a hairpin stretching across the capsid surface close to the icosahedral fivefold axis, neighbouring the receptor-binding site, and spanning two protomeric units.


    Organizational Affiliation

    Division of Structural Biology and Oxford Protein Production Facility, The Henry Wellcome Building for Genomic Medicine, Roosevelt Drive, Headington, Oxford OX3 7BN, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
P1
1
248Equine rhinitis A virusMutation(s): 0 
Find proteins for B9VV85 (Equine rhinitis A virus)
Go to UniProtKB:  B9VV85
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
P1
2
230Equine rhinitis A virusMutation(s): 0 
Find proteins for B9VV85 (Equine rhinitis A virus)
Go to UniProtKB:  B9VV85
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
P1
3
226Equine rhinitis A virusMutation(s): 0 
Find proteins for B9VV85 (Equine rhinitis A virus)
Go to UniProtKB:  B9VV85
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
P1
4
80Equine rhinitis A virusMutation(s): 0 
Find proteins for B9VV85 (Equine rhinitis A virus)
Go to UniProtKB:  B9VV85
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GAL
Query on GAL

Download SDF File 
Download CCD File 
1
BETA-D-GALACTOSE
C6 H12 O6
WQZGKKKJIJFFOK-FPRJBGLDSA-N
 Ligand Interaction
GLC
Query on GLC

Download SDF File 
Download CCD File 
1
ALPHA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-DVKNGEFBSA-N
 Ligand Interaction
SIA
Query on SIA

Download SDF File 
Download CCD File 
1
O-SIALIC ACID
C11 H19 N O9
SQVRNKJHWKZAKO-YRMXFSIDSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4 Å
  • R-Value Work: 0.247 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 344.800α = 90.00
b = 531.400β = 90.00
c = 488.300γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
X-PLORrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-09-22
    Type: Initial release