Sensitive detection of DNA methyltransferase activity by transcription-mediated duplex-specific nuclease-assisted cyclic signal amplification.

Chem Commun (Camb)

Single-Molecule Detection and Imaging Laboratory, Key Lab of Health Informatics of Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.

Published: September 2015


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Article Abstract

We develop a sensitive fluorescence method for DNA methyltransferase (MTase) assay based on T7 RNA polymerase-mediated transcription amplification and duplex-specific nuclease (DSN)-assisted cyclic signal amplification. This method exhibits excellent specificity and high sensitivity with a detection limit of 0.015 U mL(-1), and it may be further applied for the screening of antimicrobial drugs.

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http://dx.doi.org/10.1039/c5cc05922dDOI Listing

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