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タイトル: Histone H3 is absent from organelle nucleoids in BY-2 cultured tobacco cells
著者: Takusagawa, Mari; Tamotsu, Satoshi link image; Sakai, Atsushi link image
著者(別表記) : 田草川, 真理; 保, 智己; 酒井, 敦
著者読み: たくさがわ, まり; たもつ, さとし; さかい, あつし
キーワード: BY-2; histone H3; mitochondria; nucleoids; plastids; tobacco
発行日: 2013年 4月
出版者: John Wiley & Sons, Inc.
引用: M. Takusagawa, S. Tamotsu, A. Sakai: Cell Biology International, 2013, Early View (Online Version of Record published before inclusion in an issue)
抄録: The core histone proteins (H2A, H2B, H3, and H4) are nuclear-localized proteins that play a central role in the formation of nucleosome structure. They have long been considered to be absent from extra-nuclear, DNA-containing organelles; i.e., plastids and mitochondria. Recently, however, the targeting of core histone H3 to mitochondria, and the presence of nucleosome-like structures in mitochondrial nucleoids, were proposed in cauliflower and tobacco, respectively. Thus, we examined whether histone H3 was present in plant organelles and participated in the organization of nucleoid structure, using highly purified organelles and organelle nucleoids isolated from BY-2 cultured tobacco cells. Immuno-fluorescence microscopic observations and Western blotting analyses demonstrated that histone H3 was absent from organelles and organelle nucleoids, consistent with the historical hypothesis. Thus, the organization of organelle nucleoids, including putative nucleosome-like repetitive structures, should be constructed and maintained without participation of histone H3.
???metadata.dc.relation.doi???: 10.1002/cbin.10091
URI: http://hdl.handle.net/10935/3362
ISSN: 1065-6995
出版社リンク: http://onlinelibrary.wiley.com/doi/10.1002/cbin.10091/abstract
出現コレクション:雑誌

このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10935/3362

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