Expressed by the venom gland. Does not show any toxicity upon intracerebroventricular injection into mice and abdominal injection into crickets. Has no effect on human voltage-gated sodium (Nav1.5/SCN5A, Nav1.6/SCN8A and Nav1.7/SCN9A) and potassium (Kv1.1/KCNA1 and Kv1.4/KCNA4) currents (in vitro).