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Prions remodel gene expression in yeast

Epigenetic mechanisms participate in the regulation of gene transcription in eukaryotes. Two studies in yeast have revealed an additional mechanism for controlling global gene transcription that is based on an inherited self-perpetuating change in the conformation of two different components of key transcriptional regulatory complexes.

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Figure 1: Genetic screen for the yeast [OCT+] prion.
Figure 2: Glutamine/asparagine-rich regions in Cyc8, Swi1 and Tup1.

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Tuite, M., Cox, B. Prions remodel gene expression in yeast. Nat Cell Biol 11, 241–243 (2009). https://doi.org/10.1038/ncb0309-241

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