6ZER

Crystal structure of receptor binding domain of SARS-CoV-2 Spike glycoprotein in complex with EY6A Fab

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.80 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 

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This is version 1.5 of the entry. See complete history. 


Literature

Structural basis for the neutralization of SARS-CoV-2 by an antibody from a convalescent patient.

Zhou, D., Duyvesteyn, H.M.E., Chen, C.P., Huang, C.G., Chen, T.H., Shih, S.R., Lin, Y.C., Cheng, C.Y., Cheng, S.H., Huang, Y.C., Lin, T.Y., Ma, C., Huo, J., Carrique, L., Malinauskas, T., Ruza, R.R., Shah, P.N.M., Tan, T.K., Rijal, P., Donat, R.F., Godwin, K., Buttigieg, K.R., Tree, J.A., Radecke, J., Paterson, N.G., Supasa, P., Mongkolsapaya, J., Screaton, G.R., Carroll, M.W., Gilbert-Jaramillo, J., Knight, M.L., James, W., Owens, R.J., Naismith, J.H., Townsend, A.R., Fry, E.E., Zhao, Y., Ren, J., Stuart, D.I., Huang, K.A.

(2020) Nat Struct Mol Biol 27: 950-958

  • DOI: 10.1038/s41594-020-0480-y
  • Primary Citation of Related Structures:  
    6ZCZ, 6ZDG, 6ZDH, 6ZER, 6ZFO

  • PubMed Abstract: 

    • The COVID-19 pandemic has had an unprecedented health and economic impact and there are currently no approved therapies. We have isolated an antibody, EY6A, from an individual convalescing from COVID-19 and have shown that it neutralizes SARS-CoV-2 and cross-reacts with SARS-CoV-1 ...

    The COVID-19 pandemic has had an unprecedented health and economic impact and there are currently no approved therapies. We have isolated an antibody, EY6A, from an individual convalescing from COVID-19 and have shown that it neutralizes SARS-CoV-2 and cross-reacts with SARS-CoV-1. EY6A Fab binds the receptor binding domain (RBD) of the viral spike glycoprotein tightly (K D of 2 nM), and a 2.6-Å-resolution crystal structure of an RBD-EY6A Fab complex identifies the highly conserved epitope, away from the ACE2 receptor binding site. Residues within this footprint are key to stabilizing the pre-fusion spike. Cryo-EM analyses of the pre-fusion spike incubated with EY6A Fab reveal a complex of the intact spike trimer with three Fabs bound and two further multimeric forms comprising the destabilized spike attached to Fab. EY6A binds what is probably a major neutralizing epitope, making it a candidate therapeutic for COVID-19.

    Organizational Affiliation: 

    Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan. arthur1726@cgmh.org.tw.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Spike protein S1D [auth A],
G [auth D],
A [auth E]		203Severe 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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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
EY6A heavy chainE [auth B],
H [auth F],
B [auth H]		226Homo sapiensMutation(s): 0 
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
EY6A light chainF [auth C],
I [auth G],
C [auth L]		215Homo sapiensMutation(s): 0 
Entity Groups  
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Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.80 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 166.404α = 90
b = 166.404β = 90
c = 270.675γ = 120
Software Package:
Software NamePurpose
GDAdata collection
PHENIXrefinement
xia2data reduction
xia2data scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Medical Research Council (MRC, United Kingdom)United KingdomMR/N00065X/1
Wellcome TrustUnited Kingdom101122/Z/13/Z
CAMS Innovation Fund for Medical Sciences (CIFMS)China2018-I2M-2-002

Revision History  (Full details and data files)

  • Version 1.0: 2020-06-24
    Type: Initial release
  • Version 1.1: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary
  • Version 1.2: 2020-08-12
    Changes: Database references, Structure summary
  • Version 1.3: 2020-10-21
    Changes: Database references
  • Version 1.4: 2021-02-10
    Changes: Database references
  • Version 1.5: 2021-12-22
    Changes: Database references, Source and taxonomy, Structure summary