Produces peripheral paralysis by blocking neuromuscular transmission at the postsynaptic site. Binds to the nicotinic acetylcholine receptor. Expressed by the venom gland. LD(50) is 400 mg/kg by intraperitoneal injection into mice. It inhibits muscle contraction with an IC(50) of 0.23 ug/ml. Belongs to the snake three-finger toxin family. Short-chain subfamily. Type I alpha-neurotoxin sub-subfamily.