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Updated: May 31, 2026
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High-throughput Screening for Protein-based Inheritance in S. cerevisiae
Published on: August 8, 2017
Fungal prions: structure, function and propagation.
Mick F Tuite1, Ricardo Marchante, Vitaly Kushnirov
1Kent Fungal Group, School of Biosciences, University of Kent, Canterbury, Kent CT2 7NJ, UK. M.F.Tuite@kent.ac.uk
Topics in Current Chemistry
|July 1, 2011
Summary
Fungal prions in yeast, Saccharomyces cerevisiae, are self-propagating proteins distinct from animal prions. These proteins, involved in cellular processes, can induce stable phenotypic changes upon adopting a prion state.
Area of Science:
- Biochemistry
- Molecular Biology
- Yeast Genetics
Background:
- Prions are proteins capable of self-propagation into alternative conformations.
- While animal prions are linked to neurodegenerative diseases, prions also exist in fungi.
- Fungal prions, like those in Saccharomyces cerevisiae, differ in sequence from mammalian prion protein (PrP).
Purpose of the Study:
- To review the current understanding of fungal prion structure, propagation, and de novo generation.
- To highlight the diverse roles of fungal prions in cellular functions.
- To discuss findings from yeast studies on prion biology.
Main Methods:
- Review of existing scientific literature on fungal prions.
- Analysis of studies focusing on Saccharomyces cerevisiae as a model organism.
- Examination of protein conformations and cellular phenotypes.
Main Results:
- Fungal prions are diverse proteins involved in essential cellular processes like transcription and translation.
- Prion formation in yeast can lead to stable and sometimes advantageous changes in cell phenotype.
- Significant knowledge has been gained regarding prion structure and propagation mechanisms through yeast research.
Conclusions:
- Yeast serves as a valuable model for studying prion biology, including structure and propagation.
- Fungal prions represent a distinct class of self-propagating proteins with significant cellular roles.
- Understanding fungal prions offers insights into protein conformational diseases and cellular adaptation.
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