A self-immolative linker that releases thiols detects penicillin amidase and nitroreductase with high sensitivity absorption spectroscopy

This article reports the synthesis and characterization of a novel self-immolative linker, based on thiocarbonates, which releases a free thiol upon activation via enzymes. We demonstrate that thiocarbonate self-immolative linkers can be used to detect the enzymes penicillin G amidase (PGA) and nitr...

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Published inChemical communications (Cambridge, England) Vol. 58; no. 19; pp. 3166 - 3169
Main Authors Espinoza, Eli M, Røise, Joachim J, He, Maomao, Li, I-Che, Agatep, Alvin K, Udenyi, Patrick, Han, Hesong, Jackson, Nicole, Kerr, D. Lucas, Chen, Dake, Stentzel, Michael R, Ruan, Emily, Riley, Lee, Murthy, Niren
Format Journal Article
Published 03.03.2022
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Summary:This article reports the synthesis and characterization of a novel self-immolative linker, based on thiocarbonates, which releases a free thiol upon activation via enzymes. We demonstrate that thiocarbonate self-immolative linkers can be used to detect the enzymes penicillin G amidase (PGA) and nitroreductase (NTR) with high sensitivity using absorption spectroscopy. Paired with modern thiol amplification technology, the detection of PGA and NTR were achieved at concentrations of 160 nM and 52 nM respectively. In addition, the PGA probe was shown to be compatible with both biological thiols and enzymes present in cell lysates. This article reports the synthesis and characterization of a novel self-immolative linker, based on thiocarbonates, which releases a free thiol upon activation via enzymes.
Bibliography:10.1039/d1cc05322a
Electronic supplementary information (ESI) available. See DOI
ISSN:1359-7345
1364-548X
DOI:10.1039/d1cc05322a