May play a role in blocking voltage-gated potassium channels Kv1.2/KCNA2, Kv1.3/KCNA3 and Kv1.6/KCNA6 to a lesser extent. Expressed by the venom gland. Has the structural arrangement of an alpha-helix connected to a beta-sheet by disulfide bonds (CSalpha/beta). Has no effect on rat Kv1.1/KCNA1, Kv1.4/KCNA4 and Kv1.5/KCNA5 voltage-gated potassium channels. Belongs to the short scorpion toxin superfamily. Potassium channel inhibitor family. Alpha-KTx 09 subfamily.