Trypsin 's a serine protease found in the digestive system of many vertebrates, where it hydrolyses proteins. Trypsin's produced in the pancreas as the inactive proenzyme trypsinogen. Trypsin predominantly cleaves peptide chains at the carboxyl side of the amino acids lysine and arginine, except when either's followed by proline. It's used for numerous biotechnological processes. The process's commonly referred to as trypsin proteolysis or trypsinisation and proteins that've been digested/trea… (More on Trypsin)