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Cited by 288

The DOI matches its Crossref record; 63 of the 63 references it cites were found in a registry or an index.

The ATG12-Conjugating Enzyme ATG10 Is Essential for Autophagic Vesicle Formation in Arabidopsis thaliana

Open access
Phillips, Allison R, Suttangkakul, Anongpat, Vierstra, Richard D·2008·Genetics

Abstract

Autophagy is an important intracellular recycling system in eukaryotes that utilizes small vesicles to traffic cytosolic proteins and organelles to the vacuole for breakdown. Vesicle formation requires the conjugation of the two ubiquitin-fold polypeptides ATG8 and ATG12 to phosphatidylethanolamine and the ATG5 protein, respectively. Using Arabidopsis thaliana mutants affecting the ATG5 target or the ATG7 E1 required to initiate ligation of both ATG8 and ATG12, we previously showed that the ATG8/12 conjugation pathways together are important when plants encounter nutrient stress and during senescence. To characterize the ATG12 conjugation pathway specifically, we characterized a null mutant eliminating the E2-conjugating enzyme ATG10 that, similar to plants missing ATG5 or ATG7, cannot form the ATG12-ATG5 conjugate. atg10-1 plants are hypersensitive to nitrogen and carbon starvation and initiate senescence and programmed cell death (PCD) more quickly than wild type, as indicated by elevated levels of senescence- and PCD-related mRNAs and proteins during carbon starvation. As detected with a GFP-ATG8a reporter, atg10-1 and atg5-1 mutant plants fail to accumulate autophagic bodies inside the vacuole. These results indicate that ATG10 is essential for ATG12 conjugation and that the ATG12-ATG5 conjugate is necessary to form autophagic vesicles and for the timely progression of senescence and PCD in plants.

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Metadata

Authors
Phillips, A. R., Suttangkakul, A., & Vierstra, R. D.
Venue
Genetics
Published
2008-03-01
Volume
178
Issue
3
Pages
1339-1353
ISSN
  • 0016-6731 (ISSN-L)
  • 1943-2631
OpenAlex
W2029856528
Cited by
288
References
63
FWCI
8.76
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: The ATG12-Conjugating Enzyme ATG10 Is Essential for Autophagic Vesicle Formation in Arabidopsis thaliana. https://app.cochat.ai/papers/10.1534/genetics.107.086199
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Phillips, A. R., Suttangkakul, A., & Vierstra, R. D. (2008). The ATG12-Conjugating Enzyme ATG10 Is Essential for Autophagic Vesicle Formation in Arabidopsis thaliana. Genetics. https://doi.org/10.1534/genetics.107.086199

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