Snake venom phospholipase A2 (PLA2) that shows high lipolytic and weak ADP-induced platelet aggregation activities. Also shows weak anticoagulant activity. PLA2 catalyzes the calcium-dependent hydrolysis of the 2-acyl groups in 3-sn-phosphoglycerides (By similarity). 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. The subspecies C.h.atricaudatus mentioned in PubMed:20347857 is currently considered invalid. However, since different origins of specimens explain sequence variations, the specimen origins are indicated under strain in the reference section (in PubMed:20347857, Iowa also refers to C.horridus and South Carolina to C.h.atricaudatus). Belongs to the phospholipase A2 family. Group II subfamily. D49 sub-subfamily. A venom protein (not sequenced) was found in the specimen of from South Carolina, whereas no venom protein was found in the specimen from Iowa.