简介内容：OSK-1 is a potent potassium channel blocker belonging to the α-KTx3 toxins. It exhibits IC50 values of nM, nM, and nM for , , and channels, respectively. Additionally, OSK-1 acts as a moderate blocker of the calcium-activated channel, with an IC50 of 225 nM. Consequently, OSK-1 finds application as an immunosuppressive drug.
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