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]
^Canon, Francis; Paté, Franck; Meudec, Emmanuelle; Marlin, Thérèse; Cheynier, Véronique; Giuliani, Alexandre; Sarni-Manchado, Pascale (2009). "Characterization, stoichiometry, and stability of salivary protein–tannin complexes by ESI-MS and ESI-MS/MS". Analytical and Bioanalytical Chemistry. 395 (8): 2535–2545. doi:10.1007/s00216-009-3180-3. PMID 19838685. S2CID 34081138.
^de Wijk, René A.; Prinz, Jon F. (2005). "The role of friction in perceived oral texture". Food Quality and Preference. 16 (2): 121–129. doi:10.1016/j.foodqual.2004.03.002.
^(PDF). Archived from the original (PDF) on 2013-08-26. Retrieved 2010-01-19.
This protein-related article is a stub. You can help Wikipedia by expanding it.
proline, rich, protein, proline, rich, proteins, prps, class, intrinsically, unstructured, proteins, containing, several, repeats, short, proline, rich, sequence, many, tannin, consuming, animals, secrete, tannin, binding, protein, mucin, their, saliva, tannin. 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 IB5 a human parotid salivary protein known to bind with polyphenols binding responsible for the astringency mouth feel Other examples include Proline Rich 12 Proline Rich Protein 30 and Proline Rich Protein 21 References edit Canon Francis Pate Franck Meudec Emmanuelle Marlin Therese Cheynier Veronique Giuliani Alexandre Sarni Manchado Pascale 2009 Characterization stoichiometry and stability of salivary protein tannin complexes by ESI MS and ESI MS MS Analytical and Bioanalytical Chemistry 395 8 2535 2545 doi 10 1007 s00216 009 3180 3 PMID 19838685 S2CID 34081138 de Wijk Rene A Prinz Jon F 2005 The role of friction in perceived oral texture Food Quality and Preference 16 2 121 129 doi 10 1016 j foodqual 2004 03 002 Tanins chemistry on www users muohio edu PDF Archived from the original PDF on 2013 08 26 Retrieved 2010 01 19 nbsp This protein related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Proline rich protein amp oldid 1168276391, wikipedia, wiki, book, books, library,
