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From Proteopedia
Prions as a disease causing agent
Prions are infectious or genetic misfolded proteins which act as templates upon which properly folded prion protein monomers can aggregate. Prions contain no nucleic acid such as other infectoius molecules or organisms.[1] Human Prion Protein or Major Prion protein, exists The correctly folded form, PrPC is composed of mostly helix whereas the infectious form, PrP^Sc, is composed of high percentage beta sheets.[1]
The diseases prions confer are neurodegenerative disorders which result from the large scale aggregation of these proteins. For more information about the infections related to prions see Transmissible spongiform encephalopathy at Wikipedia.
