Prefusion structure of MERS-CoV spike glycoprotein, conformation 2

Experimental Data Snapshot

  • Resolution: 4.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report

This is version 1.1 of the entry. See complete history


Cryo-EM structures of MERS-CoV and SARS-CoV spike glycoproteins reveal the dynamic receptor binding domains

Yuan, Y.Cao, D.Zhang, Y.Ma, J.Qi, J.Wang, Q.Lu, G.Wu, Y.Yan, J.Shi, Y.Zhang, X.Gao, G.F.

(2017) Nat Commun 8: 15092-15092

  • DOI: https://doi.org/10.1038/ncomms15092
  • Primary Citation of Related Structures:  
    5X4R, 5X4S, 5X58, 5X59, 5X5B, 5X5C, 5X5F

  • PubMed Abstract: 

    The envelope spike (S) proteins of MERS-CoV and SARS-CoV determine the virus host tropism and entry into host cells, and constitute a promising target for the development of prophylactics and therapeutics. Here, we present high-resolution structures of the trimeric MERS-CoV and SARS-CoV S proteins in its pre-fusion conformation by single particle cryo-electron microscopy. The overall structures resemble that from other coronaviruses including HKU1, MHV and NL63 reported recently, with the exception of the receptor binding domain (RBD). We captured two states of the RBD with receptor binding region either buried (lying state) or exposed (standing state), demonstrating an inherently flexible RBD readily recognized by the receptor. Further sequence conservation analysis of six human-infecting coronaviruses revealed that the fusion peptide, HR1 region and the central helix are potential targets for eliciting broadly neutralizing antibodies.

  • Organizational Affiliation

    School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
S protein
A, B, C
1,323Middle East respiratory syndrome-related coronavirusMutation(s): 2 
Find proteins for K9N5Q8 (Middle East respiratory syndrome-related coronavirus (isolate United Kingdom/H123990006/2012))
Explore K9N5Q8 
Go to UniProtKB:  K9N5Q8
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UniProt GroupK9N5Q8
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 4.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-05-03
    Type: Initial release
  • Version 1.1: 2017-05-24
    Changes: Refinement description