Biological Assembly 1  

 3D View: Structure

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: microscopy

Macromolecule Content

• Total Structure Weight: 427.23 kDa 
• Atom Count: 25096 
• Residue Count: 3207 
• Unique protein chains: 1

6ZGG

Furin Cleaved Spike Protein of SARS-CoV-2 with One RBD Erect

• DOI: 10.2210/pdb6ZGG/pdb
• EMDataResource: EMD-11205

• Classification: VIRAL PROTEIN
• Organism(s): Severe acute respiratory syndrome coronavirus 2
• Expression System: Homo sapiens
• Mutation(s): Yes 


• Deposited: 2020-06-18 Released: 2020-07-01 
• Deposition Author(s): Wrobel, A.G., Benton, D.J., Rosenthal, P.B., Gamblin, S.J.
• Funding Organization(s): The Francis Crick Institute

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.80 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

SARS-CoV-2 and bat RaTG13 spike glycoprotein structures inform on virus evolution and furin-cleavage effects.

Wrobel, A.G., Benton, D.J., Xu, P., Roustan, C., Martin, S.R., Rosenthal, P.B., Skehel, J.J., Gamblin, S.J.

(2020) Nat Struct Mol Biol 27: 763-767

• PubMed: 32647346 
• DOI: 10.1038/s41594-020-0468-7
• Primary Citation of Related Structures:  
  6ZGF, 6ZGE, 6ZGH, 6ZGG, 6ZGI


• PubMed Abstract: 
  

SARS-CoV-2 is thought to have emerged from bats, possibly via a secondary host. Here, we investigate the relationship of spike (S) glycoprotein from SARS-CoV-2 with the S protein of a closely related bat virus, RaTG13. We determined cryo-EM structures for RaTG13 S and for both furin-cleaved and uncleaved SARS-CoV-2 S; we compared these with recently reported structures for uncleaved SARS-CoV-2 S. We also biochemically characterized their relative stabilities and affinities for the SARS-CoV-2 receptor ACE2. Although the overall structures of human and bat virus S proteins are similar, there are key differences in their properties, including a more stable precleavage form of human S and about 1,000-fold tighter binding of SARS-CoV-2 to human receptor. These observations suggest that cleavage at the furin-cleavage site decreases the overall stability of SARS-CoV-2 S and facilitates the adoption of the open conformation that is required for S to bind to the ACE2 receptor.

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Organizational Affiliation: 

Structural Biology of Disease Processes Laboratory, Francis Crick Institute, London, UK. [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Spike glycoprotein	A, B, C	1287	Severe acute respiratory syndrome coronavirus 2	Mutation(s): 2  Gene Names: S, 2
Find proteins for P0DTC2 (Severe acute respiratory syndrome coronavirus 2) Explore P0DTC2  Go to UniProtKB:  P0DTC2

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.80 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2020-06-18 
• Released Date: 2020-07-01 
Deposition Author(s): Wrobel, A.G., Benton, D.J., Rosenthal, P.B., Gamblin, S.J.

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Funding Organization	Location	Grant Number
The Francis Crick Institute	United Kingdom	FC001078
The Francis Crick Institute	United Kingdom	FC001143

Revision History 

• Version 1.0: 2020-07-01
  Type: Initial release
  
• Version 1.1: 2020-09-16
  Changes: Database references