Difference between trypsin and trypsinogen

By: Prof. Dr. Fazal Rehman | Last updated: February 3, 2024

Let me share with you a difference between trypsin and trypsinogen.

 

Aspect Trypsin Trypsinogen
Introduction Trypsin catalyzes the hydrolysis of peptide bonds in proteins Trypsinogen is the inactive precursor form of trypsin
Produced by Synthesized and released by the pancreas as trypsinogen Synthesized and released by the pancreas as an inactive zymogen (proenzyme)
Activation Activated in the small intestine, particularly in the duodenum Typically activated within the pancreas before release into the small intestine
Activation mechanism Activated by enteropeptidase (enterokinase), an enzyme in the brush border of the small intestine Activated by the removal of a specific peptide segment by another enzyme, trypsin
pH range Functions optimally in a slightly basic pH environment The conversion of trypsinogen to trypsin is initiated in the alkaline environment of the small intestine
Associated Conditions Dysregulation or dysfunction may contribute to digestive disorders like pancreatitis Dysfunction may contribute to impaired protein digestion and absorption in the small intestine
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