875.43; 890.47; 993.46; 1003.51; 1093.51; 1121.55; 1224.56; 1257.6; 1261.61; 1278.61; 1305.58; 1532.77; 1782.86; 1929.8; 2240.92; 2464.16; 2515.25; 2693.13; TRYPSIN