Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: microscopy

Macromolecule Content

• Total Structure Weight: 107.07 kDa 
• Atom Count: 6359 
• Modelled Residue Count: 792 
• Deposited Residue Count: 927 
• Unique protein chains: 2

7C8D

Cryo-EM structure of cat ACE2 and SARS-CoV-2 RBD

• PDB DOI: 10.2210/pdb7C8D/pdb
• EM Map EMD-30305:EMDBEMDataResource

• Classification: HYDROLASE/VIRAL PROTEIN
• Organism(s): Felis catus, Severe acute respiratory syndrome coronavirus 2
• Expression System: Escherichia coli, Spodoptera frugiperda ascovirus 1a
• Mutation(s): No 


• Deposited: 2020-05-29 Released: 2020-09-02 
• Deposition Author(s): Gao, G.F., Wang, Q.H., Wu, L.l.
• Funding Organization(s): Chinese Academy of Sciences

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.00 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Broad host range of SARS-CoV-2 and the molecular basis for SARS-CoV-2 binding to cat ACE2.

Wu, L., Chen, Q., Liu, K., Wang, J., Han, P., Zhang, Y., Hu, Y., Meng, Y., Pan, X., Qiao, C., Tian, S., Du, P., Song, H., Shi, W., Qi, J., Wang, H.W., Yan, J., Gao, G.F., Wang, Q.

(2020) Cell Discov 6: 68-68

• PubMed: 33020722 
• DOI: 10.1038/s41421-020-00210-9
• Primary Citation of Related Structures:  
  7C8D


• PubMed Abstract: 
  

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of the recent pandemic COVID-19, is reported to have originated from bats, with its intermediate host unknown to date. Here, we screened 26 animal counterparts of the human ACE2 (hACE2), the receptor for SARS-CoV-2 and SARS-CoV, and found that the ACE2s from various species, including pets, domestic animals and multiple wild animals, could bind to SARS-CoV-2 receptor binding domain (RBD) and facilitate the transduction of SARS-CoV-2 pseudovirus. Comparing to SARS-CoV-2, SARS-CoV seems to have a slightly wider range in choosing its receptor. We further resolved the cryo-electron microscopy (cryo-EM) structure of the cat ACE2 (cACE2) in complex with the SARS-CoV-2 RBD at a resolution of 3 Å, revealing similar binding mode as hACE2 to the SARS-CoV-2 RBD. These results shed light on pursuing the intermediate host of SARS-CoV-2 and highlight the necessity of monitoring susceptible hosts to prevent further outbreaks.

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Organizational Affiliation: 

Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100049 China.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Angiotensin-converting enzyme 2	A	732	Felis catus	Mutation(s): 0  Gene Names: ACE2 EC: 3.4.17.23 (PDB Primary Data), 3.4.17 (UniProt)
UniProt
Find proteins for Q56H28 (Felis catus) Explore Q56H28  Go to UniProtKB:  Q56H28

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Spike protein S1	B	195	Severe acute respiratory syndrome coronavirus 2	Mutation(s): 0  Gene Names: S, 2
UniProt
Find proteins for P0DTC2 (Severe acute respiratory syndrome coronavirus 2) Explore P0DTC2  Go to UniProtKB:  P0DTC2

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN (Subject of Investigation/LOI)	C [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.00 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2020-05-29 
• Released Date: 2020-09-02 
Deposition Author(s): Gao, G.F., Wang, Q.H., Wu, L.l.

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Funding Organization	Location	Grant Number
Chinese Academy of Sciences	China	XDB29010202

Revision History  

• Version 1.0: 2020-09-02
  Type: Initial release
  
• Version 1.1: 2020-12-02
  Changes: Database references