This toxin causes paralysis and death to sheep blowflies. It does not target insect sodium channels. Expressed by the venom gland. Contains 3 disulfide bonds. Two different connectivities are observed in similar proteins (C1-C3, C2-C5, C4-C6 or C1-C4, C2-C5, C3-C6). Monoisotopic mass. No effect of the synthetic peptide are observed on voltage-gated sodium channels from the American cockroach Periplanata americana or the German cockroach Blattella germanica. Belongs to the neurotoxin 12 (Hwtx-2) family. 03 (juruin) subfamily.