831.4033; 910.4327; 926.4381; 950.479; 1066.5337; 1068.5454; 1114.6821; 1183.5892; 1198.6772; 1394.6799; 1477.7576; 1515.7645; 1544.8446; 1587.6843; 1827.929; 1864.8346; 2144.1204; TRYPSIN