Ontology highlight
ABSTRACT:
SUBMITTER: Xia S
PROVIDER: S-EPMC6676905 | biostudies-literature | 2019 Aug
REPOSITORIES: biostudies-literature
Chembiochem : a European journal of chemical biology 20190614 15
We report a near-infrared fluorescent probe A for the ratiometric detection of cysteine based on FRET from a coumarin donor to a near-infrared rhodamine acceptor. Upon addition of cysteine, the coumarin fluorescence increased dramatically up to 18-fold and the fluorescence of the rhodamine acceptor decreased moderately by 45 % under excitation of the coumarin unit. Probe A has been used to detect cysteine concentration changes in live cells ratiometrically and to visualize fluctuations in cystei ...[more]