903.4; 967.5; 1018.5; 1164.7; 1220.7; 1252.6; 1265.7; 1377.8; 1380.7; 1392.7; 1475.8; 1524.8; 1668.8; 1807; 1839.9; 1993; 1996; 2007.1; 2008.9; 2108.1; 2137; 2806.5; TRYPSIN