V2EX okazaki

Okazaki

释义 Definition

Okazaki(常见于生物学语境)多指冈崎片段(Okazaki fragment):DNA复制过程中在后随链(lagging strand)上不连续合成的一段段短DNA片段,随后由DNA连接酶连接成完整链。
(另外,Okazaki也是日本姓氏/地名,如“冈崎(崎)”。)

发音 Pronunciation (IPA)

/okzki/

例句 Examples

Okazaki fragments are made during DNA replication.
冈崎片段是在DNA复制过程中形成的。

Because DNA polymerase can only extend a strand in the 5′→3′ direction, the lagging strand is synthesized as many Okazaki fragments that are later joined by DNA ligase.
由于DNA聚合酶只能沿5′→3′方向延伸链,后随链会以多个冈崎片段的形式合成,随后由DNA连接酶将其连接起来。

词源 Etymology

Okazaki源自日语姓氏/地名,常被解释为“冈(山脊/高地)+崎(崎岖的岬角/突起处)”。生物学术语“冈崎片段”来自日本科学家Reiji Okazaki(冈崎令治)及其同事对DNA复制机制的经典研究,因此以其姓氏命名。

相关词 Related Words

文学与著作中的用例 Literary / Notable Works

  • Molecular Biology of the Cell(《细胞的分子生物学》)中在DNA复制章节讨论Okazaki fragments
  • Molecular Cell Biology(《分子细胞生物学》)中用“Okazaki fragments”解释后随链的不连续合成。
  • Okazaki等人在20世纪60年代发表的DNA复制研究论文(经典文献)中首次系统阐明“冈崎片段”的概念与证据。
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