Ginkgolic acid and anacardic acid are specific covalent inhibitors of SARS-CoV-2 cysteine proteases.
Ginkgolic acid and anacardic acid are specific covalent inhibitors of SARS-CoV-2 cysteine proteases.
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DOI:
10.1186/s13578-021-00564-x
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发表时间:
2021-02-28
影响因子:
7.5
通讯作者:
Du R
中科院分区:
文献类型:
--
作者:
Chen Z;Cui Q;Cooper L;Zhang P;Lee H;Chen Z;Wang Y;Liu X;Rong L;Du R
In the urgent campaign to develop therapeutics against SARS-CoV-2, natural products have been an important source of new lead compounds. We herein identified two natural products, ginkgolic acid and anacardic acid, as inhibitors using a high-throughput screen targeting the SARS-CoV-2 papain-like protease (PLpro). Moreover, our study demonstrated that the two hit compounds are dual inhibitors targeting the SARS-CoV-2 3-chymotrypsin-like protease (3CLpro) in addition to PLpro. A mechanism of action study using enzyme kinetics further characterized the two compounds as irreversible inhibitors against both 3CLpro and PLpro. Significantly, both identified compounds inhibit SARS-CoV-2 replication in vitro at nontoxic concentrations. Our finding provides two novel natural products as promising SARS-CoV-2 antivirals.
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