- Identification of Chaperones in Freeze Tolerance in Saccharomyces cerevisiae
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Mahendran Chinnamara Naicker , I Seul Jo , Hana Im
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J. Microbiol. 2012;50(5):882-887. Published online November 4, 2012
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DOI: https://doi.org/10.1007/s12275-012-2411-z
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Exposure to low temperatures reduces protein folding rates and induces the cold denaturation of proteins. Considering the roles played by chaperones in facilitating protein folding and preventing protein aggregation, chaperones must exist that confer tolerance to cold stress. Here, yeast strains lacking individual chaperones were screened for reduced freezing tolerance. In total, 19 of 82 chaperone-deleted strains tested were more sensitive to freeze-thaw treatment than wild-type cells. The reintroduction of the respective chaperone genes into the deletion mutants recovered the freeze tolerance. The freeze sensitivity of the chaperone-knockout strains was also retained in the presence of 20% glycerol.
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Citations
Citations to this article as recorded by  - Systematic Characterization and Analysis of the Freeze–Thaw Tolerance Gene Set in the Budding Yeast, Saccharomyces cerevisiae
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