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Transcriptionally amplified synthesis of fluorogenic RNA aptamers for label-free DNA glycosylase assay.

Authors :
Ma F
Liu YZ
Liu M
Qiu JG
Zhang CY
Source :
Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2022 Sep 13; Vol. 58 (73), pp. 10229-10232. Date of Electronic Publication: 2022 Sep 13.
Publication Year :
2022

Abstract

We demonstrate for the first time the utilization of fluorogenic RNA aptamers for label-free uracil-DNA glycosylase (UDG) assay. Through rationally engineering the transcription machine with dU substitution, this assay requires only a single probe to simultaneously sense and amplify the UDG signal, achieving a low detection limit of 6.3 × 10 <superscript>-6</superscript> U mL <superscript>-1</superscript> . Moreover, it can be applied for screening UDG inhibitors and measuring endogenous UDG activity in different cells.

Details

Language :
English
ISSN :
1364-548X
Volume :
58
Issue :
73
Database :
MEDLINE
Journal :
Chemical communications (Cambridge, England)
Publication Type :
Academic Journal
Accession number :
36004508
Full Text :
https://doi.org/10.1039/d2cc03628b