817.4662; 821.4614; 853.4439; 1317.6028; 1390.7554; 1482.8071; 1508.6838; 1558.7844; 1600.8563; 2061.0291; 2135.1028; 2153.1492; 2189.1387; 2562.1753; 2595.2458; TRYPSIN