Encyclopedia > Pepsin

  Article Content


Pepsin is a protease, a digestive enzyme that degrades proteins in the stomach; the other important digestive enzymes are trypsin and chymotrypsin. It was the first animal enzyme to be discovered, by Theodor Schwann in 1836.

Pepsin is expressed as a pro-form with an additional 44 amino acids, which are cleaved off outside the secreting cell, to avoid digestion of cellular proteins.

Pepsin is most active at pH 2-4. It is permanently inactivated above pH 6.

The name Pepsi is derived from pepsin. Pepsin is also used in the preparation of cheese.

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
Kuru Kuru Kururin

... Gameplay is very challenging and rewarding, and once the player has gotten through a level there are bonuses to collect, record times to beat, and a gold star for ...

This page was created in 24.5 ms