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Amyloidogenic proteins, including prions, assemble into multiple forms of structurally distinct fibres. The [PSI+] prion, endogenous to the yeast Saccharomyces cerevisiae, is a dominantly inherited, epigenetic modifier of phenotypes. [PSI+] formation relies on the coexistence of another prion, [RNQ+]. Here, in order to better define the role of amyloid diversity on cellular phenotypes, we investigated...
Variation in amyloid structures profoundly influences a wide array of pathological phenotypes in mammalian protein conformation disorders and dominantly inherited phenotypes in yeast. Here, we describe, for the first time, naturally occurring, self‐propagating, structural variants of a prion protein isolated from wild strains of the yeast Saccharomyces cerevisiae. Variants of the [RNQ+] prion propagating...
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