TokyoGreen (TG) derivatives were found to be efficient and specific substrates of an important drug-metabolizing enzyme, UDP-glucuronosyltransferase (UGT) 1A1. A rapid, specific, and sensitive assay of the enzyme was achieved simply by monitoring the change in fluorescence intensity. We also designed and developed the first “turn-on” fluorescent probes for UGTs.
Chemodosimetric Hg<sup>2+</sup>-Selective Signaling by Mercuration of Dichlorofluorescein Derivatives
作者:Myung Gil Choi、De Hun Ryu、Hye Lim Jeon、Sunyoung Cha、Janggeun Cho、Hyun Hye Joo、Kwan Soo Hong、Chulhyun Lee、Sangdoo Ahn、Suk-Kyu Chang
DOI:10.1021/ol8013446
日期:2008.9.1
The chemodosimetric behavior of dichlorofluorescein derivatives toward Hg(2+) ions was investigated. Simple chemodosimetric systems showed selective and efficient signaling behaviors toward micromolar concentrations of Hg(2+) ions over other common interfering metal ions in an aqueous environment. The signaling mechanism is selective mercuration of the 4',5'-position of the xanthene moiety, which results
FLUORESCENT PROBE FOR MEASUREMENT OF GLUCURONATE TRANSFERASE
申请人:Nagano Tetsuo
公开号:US20100297681A1
公开(公告)日:2010-11-25
A fluorescent probe for measurement of UDP-glucuronosyltransferase, which comprises a fluorescein derivative, wherein in the fluorescein derivative, the 2-carboxy group on the benzene ring of fluorescein is replaced with another monovalent substituent, provided that said substituent is a substituent other than sulfo group, and the substituent does not have carboxy group or sulfo group, and wherein the fluorescein derivative may have an arbitrary substituent at a position on the benzene ring other than the 2-position, and the fluorescein derivative may have a substituent selected from the group consisting of an alkoxy group and a halogen atom at the 2-position and/or the 7-position of fluorescein.