Amphipathic peptide which probably adopts an alpha-helical structure. When injected in subesophageal ganglia of cockroach P.americana, a natural host for larvae of A.compressa, dampens the escape response for about 1 hour which may contribute to early stages of hypokinesia. Has no antimicrobial activity against E.coli DH5alpha or B.thuringiensis. Is not cytotoxic in vitro. Monomer. Expressed in venom sac and, to a lesser extent, in venom gland. Not expressed in brain.