Proline rich protein

Edit links
Source: Wikipedia, the free encyclopedia.

Proline-rich proteins (PRPs) is a class of

intrinsically unstructured proteins[1] (IUP) containing several repeats of a short proline
-rich sequence.

Many tannin-consuming animals secrete a tannin-binding protein (mucin) in their saliva. Tannin-binding capacity of salivary mucin is directly related to its proline content. Advantages in using salivary proline-rich proteins (PRPs) to inactivate tannins are :

  • PRPs inactivate tannins to a greater extent than do dietary proteins; this results in reduced fecal nitrogen losses,[2]
  • PRPs contain non specific nitrogen and nonessential amino acids; this makes them more convenient for an animal to exploit rather than using up valuable dietary protein.[3]

Example of this class of protein is

Proline-Rich Protein 30, and Proline-Rich Protein 21
.

References

  1. S2CID 34081138
    .
  2. doi:10.1016/j.foodqual.2004.03.002
    .
  3. ^ "Tanins chemistry on www.users.muohio.edu" (PDF). Archived from the original (PDF) on 2013-08-26. Retrieved 2010-01-19.


Stub icon

This protein-related article is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Proline_rich_protein&oldid=1168276391"