Msr-blue 是首个 “Turn-on” 型的甲硫氨酸亚砜还原酶 (methionine sulfoxide reductase) 荧光探针，具有超过 100 倍的荧光增量。Msr-blue 用于监测活细胞中甲硫氨酸亚砜还原酶的活性 (λex=340 nm, λem=440 nm)。

Msr-blue is a first turn-on fluorescent probe for methionine sulfoxide reductase with a more than 100-fold fluorescence increment. Msr-blue is used for monitoring the enzyme activity in live cells (λex=340 nm, λem=440 nm).

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Msr-blue is emited blue fluorescence after activation by methionine sulfoxide reductase A (Msr A). Msr-blue responded to Msr A in both a time- and dose-dependent manner, and more than a 100-fold increase in the emission is observed. Msr-blue is converted to its corresponding sulfide (15′) under catalysis by either the purified Msr A or a cell lysate.
The 6-OHDA-treated PC12 cells as a cellular model of Parkinsons disease (PD) is employed and applied Msr-blue to probe the function of Msrs in the cells. With the aid of Msr-blue, a decline of the Msr activity in a PD model was disclosed for the first time. has not independently confirmed the accuracy of these methods. They are for reference only.

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[1]. Liangwei Zhang, et al. A specific fluorescent probe reveals compromised activity of methionine sulfoxide reductases in Parkinsons disease. Chem Sci. 2017 Apr 1;8(4):2966-2972.

In Vitro: DMSO : 25 mg/mL (112.48 mM; Need ultrasonic)配制储备液