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Suzuki K, et al.  (2011) Selective Autophagy Regulates Insertional Mutagenesis by the Ty1 Retrotransposon in Saccharomyces cerevisiae. Dev Cell 21(2):358-65

Abstract: Macroautophagy (autophagy) is a bulk degradation system for cytoplasmic components and is ubiquitously found in eukaryotic cells. Autophagy is induced under starvation conditions and plays a cytoprotective role by degrading unwanted cytoplasmic materials. The Ty1 transposon, a member of the Ty1/copia superfamily, is the most abundant retrotransposon in the yeast Saccharomyces cerevisiae and acts to introduce mutations in the host genome via Ty1 virus-like particles (VLPs) localized in the cytoplasm. Here we show that selective autophagy downregulates Ty1 transposition by eliminating Ty1 VLPs from the cytoplasm under nutrient-limited conditions. Ty1 VLPs are targeted to autophagosomes by an interaction with Atg19. We propose that selective autophagy safeguards genome integrity against excessive insertional mutagenesis caused during nutrient starvation by transposable elements in eukaryotic cells.CI - Copyright (c) 2011 Elsevier Inc. All rights reserved.

Status: Published Type: Journal Article PubMed ID: 21839922

Topics addressed in this paper

Number of different genes curated to this paper: 34

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Topics Genes linked to topics (#1 - 10 )
ATG1 ATG19 YARCTy1-1 YBLWTy1-1 YBRWTy1-2 YDRCTy1-1 YDRCTy1-2 YDRCTy1-3 YDRWTy1-4 YDRWTy1-5
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Topics Genes linked to topics (#11 - 20 )
YERCTy1-1 YERCTy1-2 YGRCTy1-2 YGRCTy1-3 YGRWTy1-1 YHRCTy1-1 YJRWTy1-1 YJRWTy1-2 YLRCTy1-1 YLRWTy1-2
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Topics Genes linked to topics (#21 - 30 )
YLRWTy1-3 YMLWTy1-1 YMLWTy1-2 YMRCTy1-3 YMRCTy1-4 YNLCTy1-1 YNLWTy1-2 YOLWTy1-1 YORWTy1-2 YPLWTy1-1
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Topics Genes linked to topics (#31 - 34 )
YPRCTy1-2 YPRCTy1-4 YPRWTy1-3 YPT7
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