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Selective and sensitive fluorescence 'turn-on' detection of 4-thiouridine in nucleic acidsviaoxidative amination

Authors :
Aijun Tong
Zichen Qin
Jingyi Wang
Yu Xiang
Jiachen Shang
Source :
Chemical Communications. 55:13096-13099
Publication Year :
2019
Publisher :
Royal Society of Chemistry (RSC), 2019.

Abstract

A fluorescence "turn-on" method for digestion-free analysis of 4-thiouridine (s4U) in nucleic acids was developed in this work based on the oxidative amination of s4U by fluoresceinamine (FAM-NH2) and periodate (IO4-). It was 125-fold more sensitive for s4U detection than the traditional UV330 absorption method, and showed excellent selectivity to s4U over 2-thiouridine (s2U) analogues and biological thiols.

Details

ISSN :
1364548X and 13597345
Volume :
55
Database :
OpenAIRE
Journal :
Chemical Communications
Accession number :
edsair.doi.dedup.....0d79175e5bca035bca2f4fe43b9a9bc8