Efficiency Improvements and Discovery of New Substrates for a SARS-CoV-2 Main Protease FRET Assay.
Efficiency Improvements and Discovery of New Substrates for a SARS-CoV-2 Main Protease FRET Assay.
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DOI:
10.1177/24725552211020681
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发表时间:
2021-10
期刊:
影响因子:
--
通讯作者:
Klein CD
中科院分区:
文献类型:
--
作者:
Dražić T;Kühl N;Leuthold MM;Behnam MAM;Klein CD
The COVID-19 pandemic, caused by the SARS-CoV-2 virus, has a huge impact on the world. Although several vaccines have recently reached the market, the development of specific antiviral drugs against SARS-CoV-2 is an important additional strategy in fighting the pandemic. One of the most promising pharmacological targets is the viral main protease (Mpro). Here, we present an optimized biochemical assay procedure for SARS-CoV-2 Mpro. We have comprehensively investigated the influence of different buffer components and conditions on the assay performance and characterized Förster resonance energy transfer (FRET) substrates with a preference for 2-Abz/Tyr(3-NO2) FRET pairs. The substrates 2-AbzSAVLQSGTyr(3-NO2)R-OH, a truncated version of the established DABCYL/EDANS FRET substrate, and 2-AbzVVTLQSGTyr(3-NO2)R-OH are promising candidates for screening and inhibitor characterization. In the latter substrate, the incorporation of Val at position P5 improved the catalytic efficiency. Based on the obtained results, we present here a reproducible, reliable assay protocol using highly affordable buffer components.
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影响因子:
5
作者:
Grum-Tokars, Valerie;Ratia, Kiira;Begaye, Adrian;Baker, Susan C.;Mesecar, Andrew D.
通讯作者:
Mesecar, Andrew D.
DOI:
10.1074/jbc.m310875200
发表时间:
2004-01-16
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Fan K;Wei P;Feng Q;Chen S;Huang C;Ma L;Lai B;Pei J;Liu Y;Chen J;Lai L
通讯作者:
Lai L
影响因子:
168.9
作者:
Huang, Chaolin;Wang, Yeming;Cao, Bin
通讯作者:
Cao, Bin
影响因子:
8.2
作者:
Chen S;Chen LL;Luo HB;Sun T;Chen J;Ye F;Cai JH;Shen JK;Shen X;Jiang HL
通讯作者:
Jiang HL
影响因子:
3.5
作者:
Graziano V;McGrath WJ;DeGruccio AM;Dunn JJ;Mangel WF
通讯作者:
Mangel WF