产品
编 号:F160810
分子式:C142H237N45O39S7
分子量:3423.15
产品类型
结构图
CAS No: 142948-19-4
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产品详情
生物活性:
Scyllatoxin (Leiurotoxin I) is a peptide toxin, it can be isolated from the venom of the scorpion (Leiurus quinquestriatus hebraeus). Scyllatoxin is a blocker of small-conductance KCa (SK) channel. Scyllatoxin enhances both norepinephrine (NE) and epinephrine (Epi) release in vivo.
体内研究:
Scyllatoxin (2 μM) increases basal Epi release, the nerve stimulation-induced Epi release and the exogenous acetylcholine (Ach)-induced catecholamine release by microdialysis technique to the left adrenal medulla of anesthetized adult male Wistar rats.
体外研究:
For scyllatoxin, the Arg6 and Arg13 are essential for binding to the Ca2+-activated K+ channel protein and for the functional effect of the toxin.For scyllatoxin, His31 is important for the binding activity of the toxin and for the induction of contractions on taenia coli.