142948-19-4

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[1].

[1] Auguste P, et al. Scyllatoxin, a blocker of Ca(2+)-activated K+ channels: structure-function relationships and brain localization of the binding sites. Biochemistry. 1992 Jan 28;31(3):648-54. DOI:10.1021/bi00118a003
[2] Akiyama T, et al. Role of Ca2+-activated K+ channels in catecholamine release from in vivo rat adrenal medulla. Neurochem Int. 2010 Jan;56(2):263-9. DOI:10.1016/j.neuint.2009.10.010