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Abstract | Cited by

Bromo- and thiomaleimides are shown to serve as highly effective quenchers of a covalently attached fluorophore. Reactions with thiols that lead to removal of the maleimide conjugation, or detachment of the fluorophore from the maleimide, result in ‘turn-on’ of the fluorescence. These reagents thus offer opportunities in thiol sensing and intracellular reporting.

Graphical abstract: Bromo- and thiomaleimides as a new class of thiol-mediated fluorescence ‘turn-on’ reagents

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