V2EX deoxynucleotide

Deoxynucleotide

定义 Definition

脱氧核苷酸:构成 DNA 的基本单位之一,由脱氧核糖(deoxyribose)含氮碱基一个或多个磷酸基团组成(常见为脱氧核糖核苷三磷酸,如 dATP、dCTP、dGTP、dTTP)。在细胞中用于 DNA 的复制与修复。

例句 Examples

The cell needs deoxynucleotides to copy its DNA.
细胞需要脱氧核苷酸来复制它的 DNA。

DNA polymerase selects the correct deoxynucleotide based on base-pairing rules and adds it to the growing strand during replication.
DNA 聚合酶根据碱基配对规则选择正确的脱氧核苷酸,并在复制过程中将其加到不断延长的链上。

发音 Pronunciation (IPA)

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词源 Etymology

该词由三部分构成:deoxy-(“去氧的”,指相较于核糖少了一个氧原子)、nucleotide(“核苷酸”)。整体字面意思是“去氧的核苷酸”,对应其在 DNA(而非 RNA)中的结构特征与功能。

相关词 Related Words

文学与经典作品 Literary Mentions

  • Molecular Biology of the Cell(Alberts 等):在 DNA 复制与 DNA 前体物质章节中频繁使用该术语。
  • Lehninger Principles of Biochemistry(Nelson & Cox):在核酸代谢、核苷酸合成与 DNA 合成相关内容中出现。
  • Molecular Biology of the Gene(Watson 等):在阐述 DNA 复制机制、聚合酶选择底物时使用“deoxynucleotide”。
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