Untitled Document Prions PrPc PrPSc Prion is a new biological principle of infection that unlike other pathogens, bacteria, viruses, protozoans and fungi, it contains no genetic material.
Prions exist normally as innocuous cellular proteins.
Like all proteins, prion is made up of a sequence of amino acids, and the DNA of the animal host controls the sequence. It is a protein found in nerves and the brain. The causative agent is usually transferred with food. Prion infection is not sensitive to radiation treatment that damages virus genome. Prions are sensitive to protein denaturing agents, such as phenol and urea.