...Examples include the F factor involved in bacterial conjugation and the R factor that confers drug resistance. Eukaryotic DNA is present in the nucleus, which is surrounded by a nuclear membrane, and is made up of a chain of nucleosome structures wrapped around basic proteins called histones (Figure 5). This structure is further folded in a complex manner to form so-called chromatin threads, but the mechanism of higher-level folding has not yet been fully elucidated. ... *Some terminology explanations that mention "nucleosome" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…細菌の接合に関係するF因子や薬剤耐性を与えるR因子がその例である。真核生物のDNAは,核膜に包まれた核に存在し,ヒストンという塩基性タンパク質の周りに巻きついたヌクレオソームnucleosome構造のつながりからできている(図5)。この構造はさらに複雑に折りたたまれて,いわゆる染色糸を形成するが,高次の折りたたまれ方はまだ十分に解明されてはいない。… ※「nucleosome」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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