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Ms. Anna Winger
Paracelsus Medizinische Privatuniversität

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0 RBD
0 SARS-CoV-2
0 ACE2
0 COVID-19 disease
0 SARS-CoV-2 vaccines

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Review
Published: 27 May 2021 in Viruses
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The high sequence identity of the first SARS-CoV-2 samples collected in December 2019 at Wuhan did not foretell the emergence of novel variants in the United Kingdom, North and South America, India, or South Africa that drive the current waves of the pandemic. The viral spike receptor possesses two surface areas of high mutagenic plasticity: the supersite in its N-terminal domain (NTD) that is recognised by all anti-NTD antibodies and its receptor binding domain (RBD) where 17 residues make contact with the human Ace2 protein (angiotensin I converting enzyme 2) and many neutralising antibodies bind. While NTD mutations appear at first glance very diverse, they converge on the structure of the supersite. The mutations within the RBD, on the other hand, hone in on only a small number of key sites (K417, L452, E484, N501) that are allosteric control points enabling spike to escape neutralising antibodies while maintaining or even gaining Ace2-binding activity. The D614G mutation is the hallmark of all variants, as it promotes viral spread by increasing the number of open spike protomers in the homo-trimeric receptor complex. This review discusses the recent spike mutations as well as their evolution.

ACS Style

Anna Winger; Thomas Caspari. The Spike of Concern—The Novel Variants of SARS-CoV-2. Viruses 2021, 13, 1002 .

AMA Style

Anna Winger, Thomas Caspari. The Spike of Concern—The Novel Variants of SARS-CoV-2. Viruses. 2021; 13 (6):1002.

Chicago/Turabian Style

Anna Winger; Thomas Caspari. 2021. "The Spike of Concern—The Novel Variants of SARS-CoV-2." Viruses 13, no. 6: 1002.