7CJF

Crystal structure of SARS-CoV-2 RBD in complex with a neutralizing antibody Fab


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.11 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.186 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

A SARS-CoV-2 neutralizing antibody with extensive Spike binding coverage and modified for optimal therapeutic outcomes.

Guo, Y.Huang, L.Zhang, G.Yao, Y.Zhou, H.Shen, S.Shen, B.Li, B.Li, X.Zhang, Q.Chen, M.Chen, D.Wu, J.Fu, D.Zeng, X.Feng, M.Pi, C.Wang, Y.Zhou, X.Lu, M.Li, Y.Fang, Y.Lu, Y.Y.Hu, X.Wang, S.Zhang, W.Gao, G.Adrian, F.Wang, Q.Yu, F.Peng, Y.Gabibov, A.G.Min, J.Wang, Y.Huang, H.Stepanov, A.Zhang, W.Cai, Y.Liu, J.Yuan, Z.Zhang, C.Lou, Z.Deng, F.Zhang, H.Shan, C.Schweizer, L.Sun, K.Rao, Z.

(2021) Nat Commun 12: 2623-2623

  • DOI: https://doi.org/10.1038/s41467-021-22926-2
  • Primary Citation of Related Structures:  
    7CJF

  • PubMed Abstract: 

    COVID-19 pandemic caused by SARS-CoV-2 constitutes a global public health crisis with enormous economic consequences. Monoclonal antibodies against SARS-CoV-2 can provide an important treatment option to fight COVID-19, especially for the most vulnerable populations. In this work, potent antibodies binding to SARS-CoV-2 Spike protein were identified from COVID-19 convalescent patients. Among them, P4A1 interacts directly with and covers majority of the Receptor Binding Motif of the Spike Receptor-Binding Domain, shown by high-resolution complex structure analysis. We further demonstrate the binding and neutralizing activities of P4A1 against wild type and mutant Spike proteins or pseudoviruses. P4A1 was subsequently engineered to reduce the potential risk for Antibody-Dependent Enhancement of infection and to extend its half-life. The engineered antibody exhibits an optimized pharmacokinetic and safety profile, and it results in complete viral clearance in a rhesus monkey model of COVID-19 following a single injection. These data suggest its potential against SARS-CoV-2 related diseases.


  • Organizational Affiliation

    State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, People's Republic of China. [email protected].


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
antibody heavy chain228Homo sapiensMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
antibody light chain214Homo sapiensMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Spike protein S1194Severe acute respiratory syndrome coronavirus 2Mutation(s): 0 
Gene Names: S2
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
Glycosylation
Glycosylation Sites: 1Go to GlyGen: P0DTC2-1
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAG (Subject of Investigation/LOI)
Query on NAG

Download Ideal Coordinates CCD File 
D [auth C]2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.11 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.186 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.958α = 90
b = 148.575β = 90
c = 144.655γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data scaling
PDB_EXTRACTdata extraction
HKL-2000data reduction
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (NSF, United States)China31670731
National Science Foundation (NSF, United States)China31870733

Revision History  (Full details and data files)

  • Version 1.0: 2020-11-11
    Type: Initial release
  • Version 1.1: 2021-03-10
    Changes: Structure summary
  • Version 1.2: 2021-05-26
    Changes: Database references
  • Version 1.3: 2023-11-29
    Changes: Data collection, Database references, Refinement description
  • Version 1.4: 2024-10-30
    Changes: Structure summary