Is cytotoxic against A549 cells (LC(50)=106 ug/ml). Expressed by the venom gland. Average mass. LD(50) is >250 mg/kg by subcutaneous injection. Is not cytotoxic to MDA-MB-231, HT-29 cells, and HUVEC cells at concentrations up to 300 ug/ml and is not hemolytic at concentrations up to 1mg/ml. Does not inhibit the growth of reference strains of E. coli or S. aureus (MIC values >200 ug/ml). Belongs to the snake three-finger toxin family. Short-chain subfamily. Orphan group XI sub-subfamily.