7C01

Molecular basis for a potent human neutralizing antibody targeting SARS-CoV-2 RBD

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.88 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.220 

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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history. 


Literature

A human neutralizing antibody targets the receptor-binding site of SARS-CoV-2.

Shi, R., Shan, C., Duan, X., Chen, Z., Liu, P., Song, J., Song, T., Bi, X., Han, C., Wu, L., Gao, G., Hu, X., Zhang, Y., Tong, Z., Huang, W., Liu, W.J., Wu, G., Zhang, B., Wang, L., Qi, J., Feng, H., Wang, F.S., Wang, Q., Gao, G.F., Yuan, Z., Yan, J.

(2020) Nature 584: 120-124

  • DOI: 10.1038/s41586-020-2381-y
  • Primary Citation of Related Structures:  
    7C01

  • PubMed Abstract: 

    • An outbreak of coronavirus disease 2019 (COVID-19) 1-3 , caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) 4 , has spread globally. Countermeasures are needed to treat and prevent further dissemination of the virus ...

    An outbreak of coronavirus disease 2019 (COVID-19) 1-3 , caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) 4 , has spread globally. Countermeasures are needed to treat and prevent further dissemination of the virus. Here we report the isolation of two specific human monoclonal antibodies (termed CA1 and CB6) from a patient convalescing from COVID-19. CA1 and CB6 demonstrated potent SARS-CoV-2-specific neutralization activity in vitro. In addition, CB6 inhibited infection with SARS-CoV-2 in rhesus monkeys in both prophylactic and treatment settings. We also performed structural studies, which revealed that CB6 recognizes an epitope that overlaps with angiotensin-converting enzyme 2 (ACE2)-binding sites in the SARS-CoV-2 receptor-binding domain, and thereby interferes with virus-receptor interactions by both steric hindrance and direct competition for interface residues. Our results suggest that CB6 deserves further study as a candidate for translation to the clinic.

    Organizational Affiliation: 

    Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China. yanjh@im.ac.cn.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Spike protein S1A,
D [auth B]		229Severe acute respiratory syndrome coronavirus 2Mutation(s): 0 
Gene Names: S, 2
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
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
CB6 heavy chainE [auth C],
B [auth H]		233Homo sapiensMutation(s): 0 
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Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
CB6 light chainF [auth D],
C [auth L]		217Homo sapiensMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG
Download Ideal Coordinates CCD File 
G [auth A],
H [auth B]		2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.88 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.220 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 87.4α = 90
b = 106.73β = 90
c = 170.59γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
Blu-Icedata collection
HKL-2000data reduction
UCSD-systemdata processing
PHASERphasing
HKL-2000data scaling

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Chinese Academy of SciencesChinaXDB29040201
Ministry of Science and Technology (MoST, China)China2018ZX09711003
Ministry of Science and Technology (MoST, China)China2020YFC0841400
National Natural Science Foundation of China (NSFC)China81922044

Revision History  (Full details and data files)

  • Version 1.0: 2020-05-27
    Type: Initial release
  • Version 1.1: 2020-06-10
    Changes: Database references
  • Version 1.2: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary
  • Version 1.3: 2020-08-19
    Changes: Database references, Structure summary
  • Version 1.4: 2021-03-10
    Changes: Structure summary