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エンドウ トシヤ
ENDO TOSHIYA
遠藤 斗志也 所属 京都産業大学 生命科学部 先端生命科学科 職種 客員教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2018/12/01 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Visualizing multiple inter-organelle contact sites using the organelle-Targeted split-GFP system |
| 執筆形態 | その他 |
| 掲載誌名 | Scientific Reports |
| 出版社・発行元 | Nature Publishing Group |
| 巻・号・頁 | 8(1),pp.6175 |
| 著者・共著者 | Yuriko Kakimoto,Shinya Tashiro,Rieko Kojima,Yuki Morozumi,Toshiya Endo,Yasushi Tamura |
| 概要 | Functional integrity of eukaryotic organelles relies on direct physical contacts between distinct organelles. However, the entity of organelle-Tethering factors is not well understood due to lack of means to analyze inter-organelle interactions in living cells. Here we evaluate the split-GFP system for visualizing organelle contact sites in vivo and show its advantages and disadvantages. We observed punctate GFP signals from the split-GFP fragments targeted to any pairs of organelles among the ER, mitochondria, peroxisomes, vacuole and lipid droplets in yeast cells, which suggests that these organelles form contact sites with multiple organelles simultaneously although it is difficult to rule out the possibilities that these organelle contacts sites are artificially formed by the irreversible associations of the split-GFP probes. Importantly, split-GFP signals in the overlapped regions of the ER and mitochondria were mainly co-localized with ERMES, an authentic ER-mitochondria tethering structure, suggesting that split-GFP assembly depends on the preexisting inter-organelle contact sites. We also confirmed that the split-GFP system can be applied to detection of the ER-mitochondria contact sites in HeLa cells. We thus propose that the split-GFP system is a potential tool to observe and analyze inter-organelle contact sites in living yeast and mammalian cells. |
| DOI | 10.1038/s41598-018-24466-0 |
| ISSN | 2045-2322 |
| PMID | 29670150 |