کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2050375 | 1074168 | 2009 | 6 صفحه PDF | دانلود رایگان |
Autophagy is a bulk degradation process conserved among eukaryotes. In macro-autophagy, autophagosomes sequester cytoplasmic components and deliver their contents to lysosomes/vacuoles. Autophagosome formation requires the conjugation of Atg8, a ubiquitin-like protein, to phosphatidylethanolamine (PE). Here we report that the amino (N)-terminal region of Atg3, an E2-like enzyme for Atg8, plays a crucial role in Atg8–PE conjugation. The conjugating activities of Atg3 mutants lacking the 7 N-terminal amino acid residues or containing a Leu-to-Asp mutation at position 6 were severely impaired both in vivo and in vitro. In addition, the amino-terminal region is critical for interaction with the substrate, PE.Structured summaryMINT-7010457: ATG8 (uniprotkb:P38182) and ATG3 (uniprotkb:P40344) bind (MI:0407) by biochemical (MI:0401)
Journal: FEBS Letters - Volume 583, Issue 7, 2 April 2009, Pages 1078–1083