Search Results - "prion"

Prions and amyloids introduction /

Table of Contents: “…Contents: Definitions of prions and amyloid -- Genetic criteria for a prion -- Prions of mammals, yeast and filamentous fungi -- Prion domains -- Non-amyloid prions.…”
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Yeast and fungal prions a help or a hindrance? /

Table of Contents: “…Contents: [URE3] and [PSI+] not found in wild strains indicating they are harmful -- [Het-s] may benefit its host or may result from "meiotic drive" -- Some "prion domains" cannot be prions -- "Prion domains" have non-prion functions -- Rapid evolution of prion domains may protect against infection.…”
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Cytoplasmic epigenetics proteins acting as genes /

Table of Contents: “…Contents: Prions (infectious proteins) include several self-propagating amyloids of S. cerevisiae and Podospora anserina and a self-activating enzyme of S. cerevisiae -- these non-chromosomal genetic elements are genes composed of protein, just as nucleic acids can catalyse enzymatic reactions -- the amyloid-based prions [PSI+] and [URE3] are diseases of yeast, but the [Het-s] prion of Podospora carries out a normal function for that organism, heterokaryon incompatibility.…”
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