| Hazard Information | Back Directory | [Uses]
OSK-1 is a potent Kv channel blocker with IC50s of of 0.6 nM, 5.4 nM, 0.014 nM for Kv1.1, Kv1.2 and Kv1.3, respectively. OSK1 is a moderate blocker of Ca2+-activated KCa3.1 channel with an IC50 of 225 nM. OSK-1 belongs to α-KTx3 toxins and is used as a immunosuppressive agent[1]. | [in vivo]
OSK1 is lethal in mice by intracerebroventricular injection, with a LD50 (50% lethal dose) value of 2 μg/kg[1]. | [References]
[1] Stéphanie Mouhat, et al. K+ channel types targeted by synthetic OSK1, a toxin from Orthochirus scrobiculosus scorpion venom. Biochem J. 2005 Jan 1;385(Pt 1):95-104. DOI:10.1042/BJ20041379 |
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