Trypsinogen (EC 3.4.23.18/20/21/23/24/26) is the precursor form of the pancreatic enzyme trypsin. It is activated by enterokinase , which is found in the intestinal mucosa, to form trypsin. Once activated, the tyrpsin can activate more trypsinogen into trypsin.

Serum trypsinogen is measured using a blood test. High levels are seen in acute pancreatitis, and cystic fibrosis.

Functions

• Protein digestion.