This toxin causes paralysis and death to sheep blowflies (PubMed:27793656). It may inhibit voltage-gated calcium channels (By similarity). 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. PD(50) is 1335 +- 132 pmol/g in adult sheep blowflies (L.cuprina) (at 24 hours post-injection). LD(50) is 1688 +- 64 pmol/g in adult sheep blowflies (L.cuprina) (at 24 hours post-injection). 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.