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Related Experiment Video

Updated: Jul 24, 2025

Author Spotlight: Imaging ATG9A, a Multi-Spanning Membrane Protein
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Imaging ATG9A, a Multi-Spanning Membrane Protein.

Alexander R van Vliet1, Stefano De Tito2, Eugenia Almacellas2

  • 1Molecular Cell Biology of Autophagy, The Francis Crick Institute; MRC Laboratory of Molecular Biology.

Journal of Visualized Experiments : Jove
|July 3, 2023
PubMed
Summary
This summary is machine-generated.

Autophagy relies on ATG9A vesicles for initiating phagophore formation. This study details methods to track ATG9A protein trafficking, crucial for understanding cellular homeostasis and autophagy.

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Area of Science:

  • Cell Biology
  • Molecular Biology

Background:

  • Autophagy is a fundamental cellular process for maintaining homeostasis and responding to stress.
  • ATG proteins form the core machinery, with ATG9A vesicles recently implicated in initiating phagophore formation.

Purpose of the Study:

  • To present detailed methods for studying ATG9A protein localization and trafficking.
  • To address challenges associated with studying transmembrane proteins like ATG9A.

Main Methods:

  • Immunofluorescence techniques for visualizing and quantifying ATG9A localization.
  • Analysis of ATG9A trafficking dynamics within cellular compartments.

Main Results:

  • Established protocols for accurate assessment of ATG9A localization.
  • Identified pitfalls of transient overexpression in autophagy studies.

Conclusions:

  • Standardized techniques for analyzing ATG9A trafficking are essential for advancing autophagy research.
  • Understanding ATG9A function is key to elucidating autophagy initiation mechanisms.