Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



Genetically encoded biosensors for the detection of rapamycin: toward the screening of agonists and antagonists

Author affiliations

Abstract

Biosensors are valuable tools for the rapid screening of biological targets with high sensitivity and specificity. It is important to screen biological events in their native context for pharmacological and toxicological applications. However, in vitro biosensors often require purified probes and targets for screening, thus providing limited information on the biological activities of targets in their native environment. To address this issue, we developed a cell-based sensing system that could detect a biologically active small molecule, rapamycin (Rapa). We designed a reporter system based on fluorescence translocation by signal peptide reconstitution. Herein, signal peptides are activated by conditional protein splicing without the need for refolding into a functional tertiary structure, thus eliminating false positives and negatives due to mere binding or misfolding. The developed biosensor demonstrated excellent sensitivity with a limit of detection of 0.1 nM, and it was able to screen the agonist and antagonist of Rapa. The developed cell-based sensing system could contribute to improving the screening system aimed to identify the natural mimetics of Rapa and potential drug candidates.

Graphical abstract: Genetically encoded biosensors for the detection of rapamycin: toward the screening of agonists and antagonists

Back to tab navigation

Supplementary files

Article information


Submitted
05 Jun 2020
Accepted
13 Jun 2020
First published
18 Jun 2020

Analyst, 2020, Advance Article
Article type
Paper

Genetically encoded biosensors for the detection of rapamycin: toward the screening of agonists and antagonists

E. Lee, H. Jeon, J. Ryu, C. Kang, S. Kim, S. Park and Y. Kwon, Analyst, 2020, Advance Article , DOI: 10.1039/D0AN01116A

Social activity

Search articles by author

Spotlight

Advertisements