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Related Experiment Video

Updated: Jul 13, 2026

Cell-Based Drug Screening for Inhibitors of Autophagy Related 4B Cysteine Peptidase

Cell-Based Drug Screening for Inhibitors of Autophagy Related 4B Cysteine Peptidase

Published on: June 30, 2023

Identifying Atg1 substrates: four means to an end.

Stephen J Deminoff¹, Paul K Herman

¹Department of Molecular Genetics, The Ohio State University, Columbus, Ohio 43210, USA.

|August 7, 2007

Summary

Autophagy, a vital cellular process, relies on the Atg1 kinase. Identifying Atg1’s targets is crucial for understanding autophagy regulation and its role in development and stress response.

Area of Science:

Cell Biology
Molecular Biology
Biochemistry

Background:

Autophagy is a fundamental cellular process crucial for development and stress adaptation, such as nutrient deprivation.
The Atg1 serine/threonine-specific protein kinase is recognized as a central regulator in various autophagy pathways across eukaryotic cells.

Purpose of the Study:

To elucidate the regulatory mechanisms governing Atg1 kinase activity.
To identify physiologically relevant substrates of Atg1, which are currently unknown but essential for autophagy.

Main Methods:

This review discusses four distinct experimental strategies designed to facilitate the identification of Atg1 substrates.
The proposed methods aim to overcome current limitations in substrate discovery.

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Last Updated: Jul 13, 2026

Cell-Based Drug Screening for Inhibitors of Autophagy Related 4B Cysteine Peptidase

Cell-Based Drug Screening for Inhibitors of Autophagy Related 4B Cysteine Peptidase

Published on: June 30, 2023

Imaging ATG9A, a Multi-Spanning Membrane Protein

Imaging ATG9A, a Multi-Spanning Membrane Protein

Published on: June 16, 2023

Identification of Novel CK2 Kinase Substrates Using a Versatile Biochemical Approach

Identification of Novel CK2 Kinase Substrates Using a Versatile Biochemical Approach

Published on: February 21, 2019

Main Results:

No Atg1 substrates critical for autophagy have been definitively identified to date.
Progress has been made in understanding Atg1 regulation, but substrate identification remains a key challenge.

Conclusions:

Identifying Atg1 substrates is essential for a comprehensive understanding of autophagy regulation.
The discussed experimental approaches are expected to accelerate the discovery of Atg1 targets and advance autophagy research.