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Updated: May 13, 2026

High-throughput Screening for Protein-based Inheritance in S. cerevisiae
Published on: August 8, 2017
Viruses and prions of Saccharomyces cerevisiae
Reed B Wickner1, Tsutomu Fujimura, Rosa Esteban
1Laboratory of Biochemistry and Genetics, National Institute of Diabetes Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA. wickner@helix.nih.gov
Abstract:
Saccharomyces cerevisiae has been a key experimental organism for the study of infectious diseases, including dsRNA viruses, ssRNA viruses, and prions. Studies of the mechanisms of virus and prion replication, virus structure, and structure of the amyloid filaments that are the basis of yeast prions have been at the forefront of such studies in these classes of infectious entities. Yeast has been particularly useful in defining the interactions of the infectious elements with cellular components: chromosomally encoded proteins necessary for blocking the propagation of the viruses and prions, and proteins involved in the expression of viral components. Here, we emphasize the L-A dsRNA virus and its killer-toxin-encoding satellites, the 20S and 23S ssRNA naked viruses, and the several infectious proteins (prions) of yeast.
Insights
Saccharomyces cerevisiae serves as a vital model for studying infectious agents like viruses and prions. Research in yeast reveals how cellular components interact with and control these infectious elements.
Area of Science:
- Microbiology
- Virology
- Prion Biology
Background:
- * Saccharomyces cerevisiae is a crucial model organism for investigating infectious diseases.
- * Yeast has been instrumental in understanding virus and prion replication mechanisms.
- * Studies focus on virus structure and the amyloid filaments of yeast prions.
Purpose of the Study:
- * To highlight the utility of yeast in studying infectious agents.
- * To detail the interactions between yeast cellular components and infectious elements.
- * To review specific infectious entities in yeast, including viruses and prions.
Main Methods:
- * Review of existing literature on yeast as a model for infectious diseases.
- * Analysis of studies on viral replication, structure, and prion formation in yeast.
- * Examination of cellular components that regulate virus and prion propagation.
Main Results:
- * Yeast facilitates research into double-stranded RNA (dsRNA) viruses, single-stranded RNA (ssRNA) viruses, and prions.
- * Key findings include understanding virus/prion replication, structure, and cellular interactions.
- * Identification of chromosomally encoded proteins that inhibit infectious agent propagation.
Conclusions:
- * Saccharomyces cerevisiae is an indispensable model for infectious disease research.
- * Yeast research has significantly advanced the understanding of viral and prion biology.
- * Cellular interactions are critical for controlling infectious elements within yeast.
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