Allosteric inhibition of SARS-CoV-2 3CL protease by colloidal bismuth subcitrate.
Chem Sci
; 12(42): 14098-14102, 2021 Nov 03.
Article
in English
| MEDLINE | ID: covidwho-1472230
ABSTRACT
The SARS-CoV-2 3-chymotrypsin-like protease (3CLpro or Mpro) is a key cysteine protease for viral replication and transcription, making it an attractive target for antiviral therapies to combat the COVID-19 disease. Here, we demonstrate that bismuth drug colloidal bismuth subcitrate (CBS) is a potent inhibitor for 3CLpro in vitro and in cellulo. Rather than targeting the cysteine residue at the catalytic site, CBS binds to an allosteric site and results in dissociation of the 3CLpro dimer and proteolytic dysfunction. Our work provides direct evidence that CBS is an allosteric inhibitor of SARS-CoV-2 3CLpro.
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International databases
Database:
MEDLINE
Language:
English
Journal:
Chem Sci
Year:
2021
Document Type:
Article
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