''PrP'', also known as the prion protein or PrPc, is a protein in the brain of most animals. The purpose of it is still debated today. Most scientists believe it has to do with cognition, the [[Circadian rhythm]], or the immune system. Studies show that while they are semi-important in mice, they are not important in cows. It is currently unknown if they are important in humans, however it is likely they are due to the existence of [[fatal familial insomnia]]. PrP has prion isoforms called PrPSc (prion protein scrapie). Misfolding of PrP is the cause of all [[transmissible spongiform encephalopathy]] diseases. | ''PrP'', also known as the prion protein or PrPc, is a protein in the brain of most animals. The purpose of it is still debated today. Most scientists believe it has to do with cognition, the [[Circadian rhythm]], or the immune system. Studies show that while they are semi-important in mice, they are not important in cows. It is currently unknown if they are important in humans, however it is likely they are due to the existence of [[fatal familial insomnia]]. PrP has prion isoforms called PrPSc (prion protein scrapie). Misfolding of PrP is the cause of all [[transmissible spongiform encephalopathy]] diseases. |