833.4089; 855.4838; 941.6365; 960.5367; 961.5171; 1344.7308; 1389.7172; 1568.8274; 1601.7863; 1684.9236; 1905.0734; 1938.9646; 2033.1625; 2040.0134; 2365.3452; 2560.2549; TRYPSIN