V2EX pyrimidine

Pyrimidine

释义 Definition

嘧啶:一种含氮的芳香杂环化合物(六元环,含两个氮原子),是多种重要生物分子的基本骨架;在生物学中最常见的是作为核酸中的嘧啶碱基(如胞嘧啶 C、胸腺嘧啶 T、尿嘧啶 U)的母体结构。(该词在不同语境下也可指“嘧啶类化合物”整体。)

发音 Pronunciation

/parmdin/

例句 Examples

Pyrimidine is one of the basic building blocks of DNA and RNA.
嘧啶是 DNA 和 RNA 的基本构成单元之一。

Some anticancer drugs work by disrupting pyrimidine synthesis, which slows down rapidly dividing cells.
一些抗癌药通过干扰嘧啶的合成来减缓快速分裂细胞的增殖。

词源 Etymology

pyrimidine 来自对该化学结构的命名传统,构词上通常被解释为与 pyridine(吡啶) 相联系,并结合表示特定杂环骨架的命名元素形成 pyrimidine(嘧啶)。它在现代化学中作为杂环化合物的专门术语被固定下来。

相关词 Related Words

文学作品中的用例 Literary Works

  • James D. Watson,《The Double Helix》(《双螺旋》):讨论 DNA 结构与碱基配对时涉及嘧啶/嘌呤等术语。
  • Bruce Alberts 等,《Molecular Biology of the Cell》(《细胞的分子生物学》):在核酸结构与代谢章节中频繁出现 pyrimidine
  • Lehninger,《Principles of Biochemistry》(《莱宁格生物化学原理》):在核苷酸与代谢通路部分系统讲解嘧啶及其合成。
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