The infectious agent shown in the picture below consist of ?
A. DNA and RNA.
B. DNA, RNA and Protein.
C. RNA and protein.
D. Only proteins.
Ans:D. Only proteins.
The infectious agent shown in the picture above represents prions.
Prions consists of only proteins.
- A prion is an infectious agent composed entirely of protein material, called PrP .
- They are suspected to be the cause of transmissible spongiform encephalopathies.
- The infectious agent responsible for the transmission of prion diseases is a misfolded conformer of the prion protein, PrPSc, a pathogenic isoform of the host-encoded, cellular prion protein,PrPC.