Read following papers:
1.) Wickner RB. [URE3] as an altered URE2 protein - evidence for
a prion analog in Saccharomyces cerevisiae. Science.
264(5158):566-569,1994 Apr 22
This is *the* classic paper that got the whole show on the road
withrespect to prions in yeast.
2.) Edskes HK. Gray VT. Wickner RB. The [URE3] prion is an
aggregated form of Ure2p that can be cured by overexpression of
Ure2p fragments. Proceedings of the National Academy of Sciences of
the United States of America. 96(4):1498-