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Related Experiment Video

Updated: May 28, 2026

Sensitive Measurement of Mitophagy by Flow Cytometry Using the pH-dependent Fluorescent Reporter mt-Keima

Sensitive Measurement of Mitophagy by Flow Cytometry Using the pH-dependent Fluorescent Reporter mt-Keima

Published on: August 12, 2018

MAPKs regulate mitophagy in Saccharomyces cerevisiae.

Kai Mao¹, Daniel J Klionsky

¹Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA.

|October 26, 2011

Summary

This summary is machine-generated.

Mitophagy, the selective removal of mitochondria, is crucial for cell health. This study identifies two key protein kinases, Slt2 and Hog1, essential for regulating mitophagy in yeast.

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Last Updated: May 28, 2026

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A Fluorescence Microscopy Assay for Monitoring Mitophagy in the Yeast Saccharomyces cerevisiae

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In Vitro and In Vivo Detection of Mitophagy in Human Cells, C. Elegans, and Mice

In Vitro and In Vivo Detection of Mitophagy in Human Cells, C. Elegans, and Mice

Published on: November 22, 2017

Area of Science:

Cell Biology
Molecular Biology
Biochemistry

Background:

Autophagy-dependent selective degradation of mitochondria, termed mitophagy, is vital for cellular homeostasis by removing damaged or excess mitochondria.
The molecular mechanisms and regulatory pathways governing mitophagy in yeast and mammalian cells remain largely uncharacterized.

Purpose of the Study:

To investigate the molecular machinery and regulatory mechanisms underlying mitophagy in Saccharomyces cerevisiae.
To identify key proteins involved in the selective degradation of mitochondria via autophagy.

Main Methods:

Utilized Saccharomyces cerevisiae as a model organism.
Employed genetic and molecular biology techniques to study mitophagy pathways.
Investigated the roles of specific mitogen-activated protein kinases (MAPKs) in mitophagy.

Main Results:

Identified two MAPKs, Slt2 and Hog1, as essential components required for mitophagy in yeast.
Slt2 was found to be involved in both mitophagy and pexophagy (selective peroxisome degradation).
Hog1 was specifically implicated in the regulation of mitophagy.

Conclusions:

Slt2 and Hog1 are critical regulators of mitophagy in Saccharomyces cerevisiae.
These findings elucidate novel components of the mitophagy pathway, contributing to our understanding of cellular quality control mechanisms.
The distinct roles of Slt2 and Hog1 highlight the complexity of selective autophagy regulation.