title: Prion domains: sequences, structures and interactions.
abstract: Mammalian and most fungal infectious proteins (also known as prions) are self-propagating amyloid, a filamentous beta-sheet structure. A prion domain determines the infectious properties of a protein by forming the core of the amyloid. We compare the properties of known prion domains and their interactions with the remainder of the protein and with chaperones. Ure2p and Sup35p, two yeast prion proteins, can still form prions when the prion domains are shuffled, indicating a parallel in-register beta-sheet structure.
authors.affiliation: Laboratory of Biochemistry and Genetics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892-0830, USA. wickner@helix.nih.gov
authors.forename: Eric D
authors.initials: ED
authors.lastname: Ross
authors.forename: Allen
authors.initials: A
authors.lastname: Minton
authors.forename: Reed B
authors.initials: RB
authors.lastname: Wickner
mesh_terms: D000682:Amyloid / Q000737:chemistry*; D005979:Glutathione Peroxidase; D008954:Models, Biological; D018832:Molecular Chaperones / Q000502:physiology*; D010454:Peptide Termination Factors; D011328:Prions / Q000737:chemistry* / Q000145:classification; D011487:Protein Conformation; D020836:Protein Structure, Quaternary; D017434:Protein Structure, Tertiary; D012091:Repetitive Sequences, Nucleic Acid; D029701:Saccharomyces cerevisiae Proteins / Q000737:chemistry
chemical_list: D000682:Amyloid; D018832:Molecular Chaperones; D010454:Peptide Termination Factors; D011328:Prions; C068068:SUP35 protein, S cerevisiae; D029701:Saccharomyces cerevisiae Proteins; D005979:Glutathione Peroxidase; C067020:URE2 protein, S cerevisiae