Snake venom phospholipases A2 that have myotoxic, and edema-inducing activity, as well as extremely weak lipolytic activity. 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(+) Expressed by the venom gland. The sequence shown is that of PeBP(R)-I. PeBP(R)-II differs at two positions. Does not show hemorrhagic activity. Belongs to the phospholipase A2 family. Group II subfamily. R49 sub-subfamily.