898.362; 953.315; 986.359; 991.387; 1158.421; 1185.648; 1271.652; 1427.689; 1472.684; 1631.801; 1713.826; 1729.85; 1830.792; 1890.995; 1906.98; 2257.152; 2277.039; TRYPSIN