This preview shows page 1. Sign up to view the full content.
Unformatted text preview: best known ones that affect humans are kuru and Creutzfeldt-Jakob disease. These diseases seem to run in families, which may indicate a genetic component, but they also can be transmitted from person to person. Somehow these prions, which appear to be pure protein with no nucleic acid involved, may change a normal gene found in brain cells to an abnormal form. Exactly how this takes place or even exactly how the damage occurs is not yet understood. One theory is that the prion enters and attaches to a normal protein and changes its shape. They the newly changed abnormal protein attaches to other normal proteins and changes their shape--on and on....
View Full Document
This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.
- Fall '09