Snake venom phospholipase A2 (PLA2) that induces myonecrosis and edema upon intramuscular injections in mice. In vitro, causes a potent blockade of neuromuscular transmission in young chicken biventer cervicis preparation and produces cytotoxicity in murine C2C12 skeletal muscle myotubes and lack cytolytic activity upon myoblasts in vitro. 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. Belongs to the phospholipase A2 family. Group II subfamily. D49 sub-subfamily.