Abstract
Four protein-based genetic determinants or prions—[ SWI + ], [ MCA ], [ OCT + ], and [ MOT3 + ]—are recent additions to the list of well-known Saccharomyces cerevisiae prions, [ PSI + ], [ URE3 ], and [ PIN + ]. A rapid expansion of this list may indicate that many yeast proteins can convert into heritable prion forms and underscores a problem of prion input into cellular physiology. Here, we prove that the global transcriptional regulator Sfp1 can become a prion corresponding to the prion-like determinant [ ISP + ] described earlier. We show that SFP1 deletion causes an irreversible [ ISP + ] loss, whereas increased SFP1 expression induces [ ISP + ] appearance. Cells that display the [ ISP + ] phenotype contain the aggregated form of Sfp1. Indeed, these aggregates demonstrate a nuclear location. We also show that the phenotypic manifestation of Sfp1 prionization differs from the manifestation of SFP1 deletion. These properties and others distinguish [ ISP + ] from yeast prions described to date.
Bibliography
Rogoza, T., Goginashvili, A., Rodionova, S., Ivanov, M., Viktorovskaya, O., Rubel, A., Volkov, K., & Mironova, L. (2010). Non-Mendelian determinant [ ISP + ] in yeast is a nuclear-residing prion form of the global transcriptional regulator Sfp1. Proceedings of the National Academy of Sciences, 107(23), 10573â10577.
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Dates
Type | When |
---|---|
Created | 15 years, 3 months ago (May 24, 2010, 11:59 p.m.) |
Deposited | 3 years, 4 months ago (April 12, 2022, 6:25 p.m.) |
Indexed | 37 minutes ago (Sept. 3, 2025, 6:20 a.m.) |
Issued | 15 years, 3 months ago (May 24, 2010) |
Published | 15 years, 3 months ago (May 24, 2010) |
Published Online | 15 years, 3 months ago (May 24, 2010) |
Published Print | 15 years, 2 months ago (June 8, 2010) |
@article{Rogoza_2010, title={Non-Mendelian determinant [ ISP + ] in yeast is a nuclear-residing prion form of the global transcriptional regulator Sfp1}, volume={107}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.1005949107}, DOI={10.1073/pnas.1005949107}, number={23}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Rogoza, Tatyana and Goginashvili, Alexander and Rodionova, Sofia and Ivanov, Maxim and Viktorovskaya, Olga and Rubel, Alexander and Volkov, Kirill and Mironova, Ludmila}, year={2010}, month=may, pages={10573–10577} }