907.4849; 1189.6173; 1205.6107; 1256.5519; 1384.6464; 1447.6669; 1463.6624; 1476.697; 1819.8889; 1835.8806; 1928.8816; 2087.9121; 2331.1462; 3274.5623; TRYPSIN