7E3K

Ultrapotent SARS-CoV-2 neutralizing antibodies with protective efficacy against newly emerged mutational variants

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Potent SARS-CoV-2 neutralizing antibodies with protective efficacy against newly emerged mutational variants.

Li, T., Han, X., Gu, C., Guo, H., Zhang, H., Wang, Y., Hu, C., Wang, K., Liu, F., Luo, F., Zhang, Y., Hu, J., Wang, W., Li, S., Hao, Y., Shen, M., Huang, J., Long, Y., Song, S., Wu, R., Mu, S., Chen, Q., Gao, F., Wang, J., Long, S., Li, L., Wu, Y., Gao, Y., Xu, W., Cai, X., Qu, D., Zhang, Z., Zhang, H., Li, N., Gao, Q., Zhang, G., He, C., Wang, W., Ji, X., Tang, N., Yuan, Z., Xie, Y., Yang, H., Zhang, B., Huang, A., Jin, A.

(2021) Nat Commun 12: 6304-6304

  • DOI: 10.1038/s41467-021-26539-7
  • Primary Citation of Related Structures:  
    7E3K, 7E3L

  • PubMed Abstract: 

    • Accumulating mutations in the SARS-CoV-2 Spike (S) protein can increase the possibility of immune escape, challenging the present COVID-19 prophylaxis and clinical interventions. Here, 3 receptor binding domain (RBD) specific monoclonal antibodies (mAbs), 58G6, 510A5 and 13G9, with high neutralizing potency blocking authentic SARS-CoV-2 virus display remarkable efficacy against authentic B ...

    Accumulating mutations in the SARS-CoV-2 Spike (S) protein can increase the possibility of immune escape, challenging the present COVID-19 prophylaxis and clinical interventions. Here, 3 receptor binding domain (RBD) specific monoclonal antibodies (mAbs), 58G6, 510A5 and 13G9, with high neutralizing potency blocking authentic SARS-CoV-2 virus display remarkable efficacy against authentic B.1.351 virus. Surprisingly, structural analysis has revealed that 58G6 and 13G9 both recognize the steric region S 470-495 on the RBD, overlapping the E484K mutation presented in B.1.351. Also, 58G6 directly binds to another region S 450-458 in the RBD. Significantly, 58G6 and 510A5 both demonstrate prophylactic efficacy against authentic SARS-CoV-2 and B.1.351 viruses in the transgenic mice expressing human ACE2 (hACE2), protecting weight loss and reducing virus loads. Together, we have evidenced 2 potent neutralizing Abs with unique mechanism targeting authentic SARS-CoV-2 mutants, which can be promising candidates to fulfill the urgent needs for the prolonged COVID-19 pandemic.

    Organizational Affiliation: 

    Chongqing Key Laboratory of Basic and Translational Research of Tumor Immunology, Chongqing Medical University, Chongqing, 400010, China. aishunjin@cqmu.edu.cn.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Spike glycoproteinA, B, C1288Severe acute respiratory syndrome coronavirus 2Mutation(s): 5 
Gene Names: S, 2
UniProt
Find proteins for P0DTC2 (Severe acute respiratory syndrome coronavirus 2)
Explore P0DTC2 
Go to UniProtKB:  P0DTC2
Entity Groups  
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UniProt GroupP0DTC2
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
13G9 heavy chainD, F, H221Homo sapiensMutation(s): 0 
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Protein Feature View
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
13G9 light chainE,
G,
I [auth L]		215Homo sapiensMutation(s): 0 
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Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG (Subject of Investigation/LOI)
Query on NAG
Download Ideal Coordinates CCD File 
AA [auth C],
BA [auth C],
CA [auth C],
DA [auth C],
EA [auth C],
AA [auth C],
BA [auth C],
CA [auth C],
DA [auth C],
EA [auth C],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth A],
O [auth A],
P [auth A],
Q [auth A],
R [auth B],
S [auth B],
T [auth B],
U [auth B],
V [auth B],
W [auth B],
X [auth C],
Y [auth C],
Z [auth C]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-09-15
    Type: Initial release
  • Version 1.1: 2022-03-02
    Changes: Database references