6Q06

MERS-CoV S structure in complex with 2,3-sialyl-N-acetyl-lactosamine


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.7 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structures of MERS-CoV spike glycoprotein in complex with sialoside attachment receptors.

Park, Y.J.Walls, A.C.Wang, Z.Sauer, M.M.Li, W.Tortorici, M.A.Bosch, B.J.DiMaio, F.Veesler, D.

(2019) Nat.Struct.Mol.Biol. 26: 1151-1157

  • DOI: 10.1038/s41594-019-0334-7
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The Middle East respiratory syndrome coronavirus (MERS-CoV) causes severe and often lethal respiratory illness in humans, and no vaccines or specific treatments are available. Infections are initiated via binding of the MERS-CoV spike (S) glycoprotei ...

    The Middle East respiratory syndrome coronavirus (MERS-CoV) causes severe and often lethal respiratory illness in humans, and no vaccines or specific treatments are available. Infections are initiated via binding of the MERS-CoV spike (S) glycoprotein to sialosides and dipeptidyl-peptidase 4 (the attachment and entry receptors, respectively). To understand MERS-CoV engagement of sialylated receptors, we determined the cryo-EM structures of S in complex with 5-N-acetyl neuraminic acid, 5-N-glycolyl neuraminic acid, sialyl-Lewis X , α2,3-sialyl-N-acetyl-lactosamine and α2,6-sialyl-N-acetyl-lactosamine at 2.7-3.0 Å resolution. We show that recognition occurs via a conserved groove that is essential for MERS-CoV S-mediated attachment to sialosides and entry into human airway epithelial cells. Our data illuminate MERS-CoV S sialoside specificity and suggest that selectivity for α2,3-linked over α2,6-linked receptors results from enhanced interactions with the former class of oligosaccharides. This study provides a structural framework explaining MERS-CoV attachment to sialoside receptors and identifies a site of potential vulnerability to inhibitors of viral entry.


    Organizational Affiliation

    CNRS UMR 3569, Unité de Virologie Structurale, Paris, France.,Department of Biochemistry, University of Washington, Seattle, WA, USA.,Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands.,Institut Pasteur, Unité de Virologie Structurale, Paris, France.,Department of Biochemistry, University of Washington, Seattle, WA, USA. dveesler@uw.edu.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Spike glycoprotein
A, B, C
1359Human betacoronavirus 2c EMC/2012Mutation(s): 4 
Gene Names: S
Find proteins for K0BRG7 (Human betacoronavirus 2c EMC/2012)
Go to UniProtKB:  K0BRG7
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MAN
Query on MAN

Download SDF File 
Download CCD File 
A, B, C
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N
 Ligand Interaction
GAL
Query on GAL

Download SDF File 
Download CCD File 
A, B, C
BETA-D-GALACTOSE
C6 H12 O6
WQZGKKKJIJFFOK-FPRJBGLDSA-N
 Ligand Interaction
BMA
Query on BMA

Download SDF File 
Download CCD File 
A, B, C
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
FOL
Query on FOL

Download SDF File 
Download CCD File 
A, B, C
FOLIC ACID
C19 H19 N7 O6
OVBPIULPVIDEAO-LBPRGKRZSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B, C
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
SIA
Query on SIA

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

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.7 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United States120553

Revision History 

  • Version 1.0: 2019-12-11
    Type: Initial release
  • Version 1.1: 2019-12-18
    Type: Database references
  • Version 1.2: 2020-01-08
    Type: Author supporting evidence