Trypsin [Chemical/Ingredient] N0000007037 Tripcellim 10890 M0022078 A serine endopeptidase that is formed from TRYPSINOGEN in the pancreas. It is converted into its active form by ENTEROPEPTIDASE in the small intestine. It catalyzes hydrolysis of the carboxyl group of either arginine or lysine. EC 3.4.21.4. Trypsin D014357 Trypsin TRYPSIN C0041236 Serine Endopeptidases [Chemical/Ingredient]