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Cyanovirin-N binds to select SARS-CoV-2 spike oligosaccharides outside of the receptor binding domain and blocks infection by SARS-CoV-2

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Significance The antiviral lectin cyanovirin-N (CV-N) is shown to have potent activity against the syndromecoronavirus 2 (SARS-CoV-2) virus. CV-N showed improved binding and potency against more recent SARS-CoV-2 variants of… Click to show full abstract

Significance The antiviral lectin cyanovirin-N (CV-N) is shown to have potent activity against the syndromecoronavirus 2 (SARS-CoV-2) virus. CV-N showed improved binding and potency against more recent SARS-CoV-2 variants of concern and is shown to be able to reduce the severity of SARS-CoV-2 infections in test animals. The mechanism of action for CV-N is distinct from that of currently used anti-COVID therapeutics or from common vaccine targets on the receptor binding domain. CV-N is a potential broad-spectrum agent against infection from SARS-CoV-2.

Keywords: infection sars; receptor binding; sars cov; binding domain

Journal Title: Proceedings of the National Academy of Sciences of the United States of America
Year Published: 2023

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