The DOI matches its Crossref record; 73 of the 73 references it cites were found in a registry or an index.
N501Y mutation of spike protein in SARS-CoV-2 strengthens its binding to receptor ACE2
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Abstract
SARS-CoV-2 has been spreading around the world for the past year. Recently, several variants such as B.1.1.7 (alpha), B.1.351 (beta), and P.1 (gamma), which share a key mutation N501Y on the receptor-binding domain (RBD), appear to be more infectious to humans. To understand the underlying mechanism, we used a cell surface-binding assay, a kinetics study, a single-molecule technique, and a computational method to investigate the interaction between these RBD (mutations) and ACE2. Remarkably, RBD with the N501Y mutation exhibited a considerably stronger interaction, with a faster association rate and a slower dissociation rate. Atomic force microscopy (AFM)-based single-molecule force microscopy (SMFS) consistently quantified the interaction strength of RBD with the mutation as having increased binding probability and requiring increased unbinding force. Molecular dynamics simulations of RBD–ACE2 complexes indicated that the N501Y mutation introduced additional π-π and π-cation interactions that could explain the changes observed by force microscopy. Taken together, these results suggest that the reinforced RBD–ACE2 interaction that results from the N501Y mutation in the RBD should play an essential role in the higher rate of transmission of SARS-CoV-2 variants, and that future mutations in the RBD of the virus should be under surveillance.
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Metadata
- Authors
- Tian, F., Tong, B., Sun, L., Shi, S., Zheng, B., Wang, Z., Dong, X., & Zheng, P.
- Venue
- eLife
- Publisher
- eLife Sciences Publications, Ltd
- Published
- 2021-08-20
- Volume
- 10
- ISSN
- 2050-084X (ISSN-L)
- OpenAlex
- W3194545253
- Cited by
- 389
- References
- 73
- FWCI
- 25.10
- Type
- journal article
- Language
- en
- Open access
- gold
- Licence
- creativecommons.org/licenses/by/4.0/ (vor)
- creativecommons.org/licenses/by/4.0/ (am)
- creativecommons.org/licenses/by/4.0/ (tdm)
- Funders
- National Key Research and Development Program of China (2020YFA0509000)
- Fundamental Research Funds for the Central Universities (14380205)
- Natural Science Foundation of Jiangsu Province (BK20200058, BK20202004, BK20190275)
- National Natural Science Foundation of China (21771103, 21977047, 3217110056)
- Jiangsu Scientific and Technological Innovations Platform named Jiangsu Provincial Service Center for Antidiabetic Drug Screening.
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- Tian, F., Tong, B., Sun, L., Shi, S., Zheng, B., Wang, Z., Dong, X., & Zheng, P. (2021). N501Y mutation of spike protein in SARS-CoV-2 strengthens its binding to receptor ACE2. eLife. https://doi.org/10.7554/elife.69091
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