860.5173; 884.5245; 1021.5318; 1048.6034; 1188.6619; 1222.6666; 1553.8512; 1589.8319; 1620.7792; 1754.9534; 1880.0769; 1896.8744; 2438.2192; 2462.2681; TRYPSIN