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. 2021 Jun;31(6):720-722.
doi: 10.1038/s41422-021-00496-8. Epub 2021 Apr 23.

The basis of a more contagious 501Y.V1 variant of SARS-CoV-2

Haolin Liu #  1   2 , Qianqian Zhang #  3 , Pengcheng Wei  4   5 , Zhongzhou Chen  3 , Katja Aviszus  4   5 , John Yang  6 , Walter Downing  7 , Chengyu Jiang  8 , Bo Liang  9 , Lyndon Reynoso  10 , Gregory P Downey  6 , Stephen K Frankel  6 , John Kappler  4   5 , Philippa Marrack  11   12 , Gongyi Zhang  13   14
Affiliations

The basis of a more contagious 501Y.V1 variant of SARS-CoV-2

Haolin Liu et al. Cell Res. 2021 Jun.
No abstract available

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Conflict of interest statement

H.L. is partially supported by NB Life Laboratory LLC and G.Z. holds equity at NB Life Laboratory LLC.

Figures

Fig. 1
Fig. 1. The UK variant Y501-RBD binds to ACE2 with higher affinity, but remains similar bindings to Bamlanivimab and sera from mRNA-vaccinated individuals.
a The affinity measurement of N501-RBD to ACE2 by SPR. KD, dissociation constant; Kon, association rate; Koff, dissociation rate; RU, response unit. b The affinity measurement of Y501-RBD to ACE2 by SPR. c Protein structure of N501-RBD and ACE2. d Protein structure model of Y501-RBD and ACE2. The new hydrogen bonds are shown as heavy dash lines, and the aromatic stacking interaction is shown as light dash lines. e Blocking of ACE2 binding to N501-RBD by different dilutions of mRNA-vaccinated serum. f Blocking of ACE2 binding to Y501-RBD by different dilutions of mRNA-vaccinated serum. Note that equal amount of N501-RBD and Y501-RBD was coated on two separate channels on the same CM5 chip. Same amount of serum as well as ACE2 were applied in the following dilution steps. Similar amounts of antibodies were retained on both channels (Supplementary information, Fig. S3). g. The difference of ACE2 retained on N501-RBD and Y501-RBD treated with serial dilutions of the serum at 5 s after ACE2 injection. Each dot value was calculated as the ACE2 binding on Y501-RBD minus ACE2 on N501-RBD. The value of Buffer is the difference of ACE2 on two channels without treatment of the serum. h The affinity measurement of N501-RBD to Bamlanivimab by SPR. i The affinity measurement of Y501-RBD to Bamlanivimab by SPR.
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References

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    1. U. S. Food & Drug. Moderna vaccine. https://www.fda.gov/emergency-preparedness-and-response/coronavirus-dise... (2020).
    1. CDC. SARS-CoV-2 variants. https://www.cdc.gov/coronavirus/2019-ncov/more/science-and-research/scie... (2021).
    1. U. S. Food & Drug. Bamlanivimab. https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19... (2020).
    1. U. S. Food & Drug. Casirivimab & imdevimab. https://www.fda.gov/news-events/press-announcements/coronavirus-covid-19... (2020).

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