Shows no cytotoxicity and does not inhibit the binding of alpha-bungarotoxin to nicotinic acetylcholine receptors of muscle and alpha-7/CHRNA7 types. However, it potentiates the binding of alpha-bungarotoxin to the acetylcholine-binding protein from Lymnaea stagnalis. Expressed by the venom gland. Is classified as a P-type cytotoxin, since a proline residue stands at position 28 (Pro-31 in standard classification). Belongs to the snake three-finger toxin family. Short-chain subfamily.