Prion protein. Computer artwork of part of a prion protein on a light micrograph of pyramidal nerve cells (neurones,black) from the brain's cerebellum. Prions destroy brain tissue,causing diseases such as BSE (bovine spongiform encephalopathy) in cows and CJD (Creutzfeldt-Jakob disease) in humans. They are a mutated form of a normal cell protein (PrP). The atoms are colour- coded: hydrogen (light blue),carbon (orange),oxygen (red) and nitrogen (dark blue). Prions contain spiralling amino acid alpha-helices (purple and orange). This is the rigid half of the protein. The other half (not shown) varies in shape,with one form thought to cause CJD and BSE | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Pasieka, Alfred |
Taille de l’image : | 4831 px × 3689 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |