Shows structural homology with WaTx suggesting that it acts as a cell-penetrating peptide (CPP) with defensive purpose that induces pain by specifically activating mammalian sensory neuron TRPA1 channels (By similarity). Has no effect on the voltage-gated potassium channels tested (By similarity). 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 1 subfamily.