This protein lyses red blood cells, has cytotoxic activity and induces hypotension, but is not neurotoxic. In addition, it induces direct paralysis of the muscle fiber. Expressed by the venom gland. LD(50) is 3.8 mg/kg by intravenous injection into mice. Is classified as a P-type cytotoxin, since a proline residue stands at position 31 (Pro-31 in standard classification). Belongs to the snake three-finger toxin family. Short-chain subfamily. Type IB cytotoxin sub-subfamily.