Pepsin

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Pepsin is an enzyme produced by the chief cell of the stomach[1]. Its role is to break down large proteins from food into smaller polypeptides in order to be digested by the small intestine.

This enzyme has a precursor called pepsinogen, which has a neutral pH unlike its activated form, which is very acidic[2].

References

  1. This is a reference to a fact sheet written by Jillian O'keeffe in an online health website: http://www.livestrong.com/article/346334-pepsin-enzyme-facts/
  2. Tang, J. (2018). Pepsin - an overview | ScienceDirect Topics. [online] Sciencedirect.com. Available at: https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/pepsin [Accessed 19 Oct. 2018].
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