High Resolution Image Download MS PowerPoint Slide Cysteine (Cys) is an important mediator to regulate the redox state of endoplasmic reticulum (ER), and its level is closely related with many ER stress induced serious diseases. Herein, we present an ER-specific fluorescent probe for the ratiometric imaging of cellular Cys for the first time. The probe exhibited desirable selectivity and sensitivity to Cys. Biological imaging experiments demonstrated that the probe possessed an ER-targeting property, showed ratiometric response to Cys in ER, and could be applied for the ratiometric imaging of Cys level changes during H 2 O 2 -induced redox imbalance in living cells.
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Dong et al. (2019) studied this question.
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