Cell, Vol. 89, 499-510, May 16, 1997, Copyright 1997 by Cell Press Review Deadly Conformations-Protein Misfolding in Prion Disease Arthur L. Horwich; Department of Genetics, Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, Connecticut 06510 Jonathan S. Weissman; Department of Cellular and Molecular, Pharmacology, University of California-San Francisco School, of ...