Inactivation of mahogunin, an E3 ubiquitin ligase, causes a spongiform encephalopathy resembling prion disease. Chakrabarti and Hegde (2009) [1] now report that prion proteins with aberrant topologies inactivate mahogunin, providing a plausible explanation for certain aspects of prion pathology.
Citation: Aguzzi A, Steele AD. Prion Topology and Toxicity [2]. Cell. 2009;137:994-996.
Links:
[1] http://www.cell.com/abstract/S0092-8674(09)00379-1
[2] http://www.cell.com/abstract/S0092-8674(09)00646-1