Crystal structure of piratoxin-I: a calcium-independent, myotoxic phospholipase 'A IND.2'-homologue from bothrops pirajai venom - Azevedo Júnior, Walter Filgueira de; Ward, Richard John; Canduri, Fernanda; Soares, A; Giglio, José Roberto; Arni, R K (Toxicon, 1998)