Mass Spectrometric Assays Reveal Discrepancies in Inhibition Profiles for the SARS-CoV-2 Papain-Like Protease.
Mass Spectrometric Assays Reveal Discrepancies in Inhibition Profiles for the SARS-CoV-2 Papain-Like Protease.
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质谱分析显示SARS-CoV-2木瓜蛋白样蛋白酶的抑制谱存在差异。
DOI:
10.1002/cmdc.202200016
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发表时间:
2022-05-04
期刊:
影响因子:
3.4
通讯作者:
Schofield, Christopher J.
中科院分区:
文献类型:
--
作者:
Brewitz, Lennart;Kamps, Jos J. A. G.;Lukacik, Petra;Strain-Damerell, Claire;Zhao, Yilin;Tumber, Anthony;Malla, Tika R.;Orville, Allen M.;Walsh, Martin A.;Schofield, Christopher J.
关键词:
The two SARS‐CoV‐2 proteases, i. e. the main protease (Mpro) and the papain‐like protease (PLpro), which hydrolyze the viral polypeptide chain giving functional non‐structural proteins, are essential for viral replication and are medicinal chemistry targets. We report a high‐throughput mass spectrometry (MS)‐based assay which directly monitors PLpro catalysis in vitro. The assay was applied to investigate the effect of reported small‐molecule PLpro inhibitors and selected Mpro inhibitors on PLpro catalysis. The results reveal that some, but not all, PLpro inhibitor potencies differ substantially from those obtained using fluorescence‐based assays. Some substrate‐competing Mpro inhibitors, notably PF‐07321332 (nirmatrelvir) which is in clinical development, do not inhibit PLpro. Less selective Mpro inhibitors, e. g. auranofin, inhibit PLpro, highlighting the potential for dual PLpro/Mpro inhibition. MS‐based PLpro assays, which are orthogonal to widely employed fluorescence‐based assays, are of utility in validating inhibitor potencies, especially for inhibitors operating by non‐covalent mechanisms. Double check: A mass spectrometry‐based direct SARS‐CoV‐2 PLpro assay reveals discrepancies in inhibition profiles for non‐covalent inhibitors. Use of assays orthogonal to the established fluorescence‐based assays is important for development of efficient small‐molecule PLpro inhibitors.
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影响因子:
7.3
作者:
Jadhav A;Ferreira RS;Klumpp C;Mott BT;Austin CP;Inglese J;Thomas CJ;Maloney DJ;Shoichet BK;Simeonov A
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Simeonov A
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Armstrong LA;Lange SM;Dee Cesare V;Matthews SP;Nirujogi RS;Cole I;Hope A;Cunningham F;Toth R;Mukherjee R;Bojkova D;Gruber F;Gray D;Wyatt PG;Cinatl J;Dikic I;Davies P;Kulathu Y
通讯作者:
Kulathu Y
影响因子:
5.4
作者:
Harcourt, BH;Jukneliene, D;Baker, SC
通讯作者:
Baker, SC
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16.6
作者:
Douangamath A;Fearon D;Gehrtz P;Krojer T;Lukacik P;Owen CD;Resnick E;Strain-Damerell C;Aimon A;Ábrányi-Balogh P;Brandão-Neto J;Carbery A;Davison G;Dias A;Downes TD;Dunnett L;Fairhead M;Firth JD;Jones SP;Keeley A;Keserü GM;Klein HF;Martin MP;Noble MEM;O'Brien P;Powell A;Reddi RN;Skyner R;Snee M;Waring MJ;Wild C;London N;von Delft F;Walsh MA
通讯作者:
Walsh MA