6LZG

Structure of novel coronavirus spike receptor-binding domain complexed with its receptor ACE2

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 

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This is version 2.4 of the entry. See complete history. 


Literature

Structural and Functional Basis of SARS-CoV-2 Entry by Using Human ACE2.

Wang, Q., Zhang, Y., Wu, L., Niu, S., Song, C., Zhang, Z., Lu, G., Qiao, C., Hu, Y., Yuen, K.Y., Wang, Q., Zhou, H., Yan, J., Qi, J.

(2020) Cell 181: 894-904.e9

  • DOI: 10.1016/j.cell.2020.03.045
  • Primary Citation of Related Structures:  
    6LZG

  • PubMed Abstract: 

    • The recent emergence of a novel coronavirus (SARS-CoV-2) in China has caused significant public health concerns. Recently, ACE2 was reported as an entry receptor for SARS-CoV-2. In this study, we present the crystal structure of the C-terminal domain of SARS-CoV-2 (SARS-CoV-2-CTD) spike (S) protein in complex with human ACE2 (hACE2), which reveals a hACE2-binding mode similar overall to that observed for SARS-CoV ...

    The recent emergence of a novel coronavirus (SARS-CoV-2) in China has caused significant public health concerns. Recently, ACE2 was reported as an entry receptor for SARS-CoV-2. In this study, we present the crystal structure of the C-terminal domain of SARS-CoV-2 (SARS-CoV-2-CTD) spike (S) protein in complex with human ACE2 (hACE2), which reveals a hACE2-binding mode similar overall to that observed for SARS-CoV. However, atomic details at the binding interface demonstrate that key residue substitutions in SARS-CoV-2-CTD slightly strengthen the interaction and lead to higher affinity for receptor binding than SARS-RBD. Additionally, a panel of murine monoclonal antibodies (mAbs) and polyclonal antibodies (pAbs) against SARS-CoV-S1/receptor-binding domain (RBD) were unable to interact with the SARS-CoV-2 S protein, indicating notable differences in antigenicity between SARS-CoV and SARS-CoV-2. These findings shed light on the viral pathogenesis and provide important structural information regarding development of therapeutic countermeasures against the emerging virus.

    Organizational Affiliation: 

    CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; Savaid Medical School, University of the Chinese Academy of Sciences, Beijing 100049, China. Electronic address: jxqi@im.ac.cn.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Angiotensin-converting enzyme 2A596Homo sapiensMutation(s): 0 
Gene Names: ACE2, UNQ868/PRO1885
EC: 3.4.17.23 (PDB Primary Data), 3.4.17 (PDB Primary Data)
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9BYF1 (Homo sapiens)
Explore Q9BYF1 
Go to UniProtKB:  Q9BYF1
PHAROS:  Q9BYF1
GTEx:  ENSG00000130234 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9BYF1
Protein Feature View
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  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Spike protein S1B209Severe acute respiratory syndrome coronavirus 2Mutation(s): 0 
Gene Names: S, 2
Membrane Entity: Yes 
UniProt
Find proteins for P0DTC2 (Severe acute respiratory syndrome coronavirus 2)
Explore P0DTC2 
Go to UniProtKB:  P0DTC2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0DTC2
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 104.448α = 90
b = 104.448β = 90
c = 229.786γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
Blu-Icedata collection
HKL-2000data reduction
HKL-2000data processing
PHASERphasing
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-03-18
    Type: Initial release
  • Version 1.1: 2020-04-08
    Changes: Structure summary
  • Version 2.0: 2020-04-22
    Type: Coordinate replacement
    Reason: Model orientation/position
    Changes: Advisory, Atomic model, Author supporting evidence, Database references, Polymer sequence, Refinement description, Source and taxonomy, Structure summary
  • Version 2.1: 2020-05-06
    Changes: Database references, Source and taxonomy, Structure summary
  • Version 2.2: 2020-05-27
    Changes: Database references
  • Version 2.3: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary
  • Version 2.4: 2021-03-10
    Changes: Structure summary