In vivo, induces marked paralysis on shrimps (C.multidentata) at 10-20 seconds after injection and a weak toxicity when injected into insect larvae (M.domestica). Contains 3 disulfide bonds. LD(100) is 30 ug/g on the shrimp C.multidentata. LD(50) is 30 ug/g when injected into fly larvae (M.domestica). Belongs to the sea anemone sodium channel inhibitory toxin family. Type I subfamily. Toxicity tests have been done on recombinant non-amidated toxin.