This phospholipase A2 inhibitor binds directly phospholipase A2 in the presence or absence of calcium. Has anti-enzymatic, anti-myotoxic, anti-edema inducing, anti-cytotoxic, anti-bactericidal, and anti-lethal properties against basic and acidic phospholipases A2 from Bothrops venoms. Oligomer (PubMed:12604331). Homotrimer; non-covalently linked (By similarity). Secreted in plasma. Expressed by the liver. Glycosylated. The glycosylation has no role in the association of this PLI and PA2 enzyme. Belongs to the alpha-type phospholipase A2 inhibitor family.