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Cited by 430

The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.

Mammalian Atg2 proteins are essential for autophagosome formation and important for regulation of size and distribution of lipid droplets

Open access
Velikkakath, Anoop Kumar G., Nishimura, Taki, Oita, Eiko, Ishihara, Naotada, Mizushima, Noboru·2012·Molecular Biology of the Cell

Abstract

Macroautophagy is an intracellular degradation system by which cytoplasmic materials are enclosed by the autophagosome and delivered to the lysosome. Autophagosome formation is considered to take place on the endoplasmic reticulum and involves functions of autophagy-related (Atg) proteins. Here, we report the identification and characterization of mammalian Atg2 homologues Atg2A and Atg2B. Simultaneous silencing of Atg2A and Atg2B causes a block in autophagic flux and accumulation of unclosed autophagic structures containing most Atg proteins. Atg2A localizes on the autophagic membrane, as well as on the surface of lipid droplets. The Atg2A region containing amino acids 1723–1829, which shows relatively high conservation among species, is required for localization to both the autophagic membrane and lipid droplet and is also essential for autophagy. Depletion of both Atg2A and Atg2B causes clustering of enlarged lipid droplets in an autophagy-independent manner. These data suggest that mammalian Atg2 proteins function both in autophagosome formation and regulation of lipid droplet morphology and dispersion.

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Metadata

Authors
Velikkakath, A. K. G., Nishimura, T., Oita, E., Ishihara, N., & Mizushima, N.
Venue
Molecular Biology of the Cell
Published
2012-03
Volume
23
Issue
5
Pages
896-909
ISSN
  • 1059-1524 (ISSN-L)
  • 1939-4586
OpenAlex
W2150723052
Cited by
430
References
11
FWCI
15.94
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Mammalian Atg2 proteins are essential for autophagosome formation and important for regulation of size and distribution of lipid droplets. https://app.cochat.ai/papers/10.1091/mbc.e11-09-0785
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Velikkakath, A. K. G., Nishimura, T., Oita, E., Ishihara, N., & Mizushima, N. (2012). Mammalian Atg2 proteins are essential for autophagosome formation and important for regulation of size and distribution of lipid droplets. Molecular Biology of the Cell. https://doi.org/10.1091/mbc.e11-09-0785

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