Snake venom phospholipase A2 (PLA2) that has several activities. It is myotoxic, has weak anticoagulant activity and inhibits neuromuscular transmission by blocking acetylcholine release from the nerve termini. PLA2 catalyzes the calcium-dependent hydrolysis of the 2-acyl groups in 3-sn-phosphoglycerides. a 1,2-diacyl-sn-glycero-3-phosphocholine + H2O = a 1-acyl-sn-glycero-3-phosphocholine + a fatty acid + H(+) Binds 1 Ca(2+) ion. Expressed by the venom gland. LD(50) is 0.11 mg/kg by intravenous injection. Belongs to the phospholipase A2 family. Group I subfamily. D49 sub-subfamily.