Weakly inhibits the Kv7.1/KCNQ1 channel (10 uM of the toxin inhibits currents by 17.8%). Expressed by the venom gland. Has the structural arrangement of two alpha-helices stabilized by disulfide bonds (CSalpha/alpha 2(S-S)). Belongs to the short scorpion toxin superfamily. Potassium channel inhibitor kappa-KTx family. Kappa-KTx 2 subfamily.