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Updated: Jul 18, 2026
10:27
A Fluorescence Microscopy Assay for Monitoring Mitophagy in the Yeast Saccharomyces cerevisiae
Published on: July 18, 2011
Autophagy in yeast: a TOR-mediated response to nutrient starvation
1Department of Cell Biology, National Institute for Basic Biology, 444-8585, Okazaki, Japan.
Current Topics in Microbiology and Immunology
|October 17, 2003
Summary
The mechanistic target of rapamycin (TOR) pathway regulates autophagy, a cellular process crucial during nutrient deprivation. This review details how TOR signaling controls autophagy induction in budding yeast.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- The mechanistic target of rapamycin (TOR) pathway is a central regulator of cell growth and cell-cycle progression.
- Recent research indicates TOR's involvement in molecular processes linked to nutrient deprivation, including autophagy.
- Autophagy is a vital cellular recycling process, particularly important under stress conditions.
Purpose of the Study:
- To review recent research on the role of TOR in autophagy.
- To elucidate the mechanism by which TOR mediates autophagy induction.
- To highlight TOR's function in regulating Apg1 protein kinase activation.
Main Methods:
- Literature review of recent studies on TOR and autophagy.
- Analysis of molecular pathways involved in nutrient deprivation responses.
- Focus on budding yeast as a model organism.
Main Results:
- TOR negatively regulates the activation of Apg1 protein kinase.
- Apg1 protein kinase is essential for the induction of autophagy.
- TOR signaling is a key mediator of autophagy initiation.
Conclusions:
- TOR plays a critical role in controlling autophagy induction.
- Understanding TOR's mechanism provides insights into cellular stress responses.
- Further research can explore therapeutic targets related to TOR and autophagy.
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