Insecticidal toxin that shows strong lethal effects on American cockroaches (P.americana) and common mealbeetle (T.molitor) (PubMed:25329070). Possibly acts by blocking ion channel currents (Probable). Also shows significant analgesic effects in mice models of pain including abdominal writhing induced by acetic acid and formalin-induced paw licking tests (PubMed:25329070). In addition, it exerts marked inhibition on tumor cell proliferation (PubMed:25329070). Expressed by the venom gland. The presence of a 'disulfide through disulfide knot' structurally defines this protein as a knottin. LD(50) is 5 ug/kg in adult cockroaches. LD(50) is 7.6 ug/kg in mealbeetles. Belongs to the neurotoxin 14 (magi-1) family. 08 (Ltx-4) subfamily.