V2EX spliceosome

Spliceosome

释义 Definition

剪接体:真核细胞核内负责将前体信使RNA(pre-mRNA)中的内含子切除、并把外显子连接起来的巨大核糖核蛋白复合体(由snRNA与蛋白质组成)。常见语境为分子生物学与遗传学。(也可泛指参与RNA剪接过程的整体机器。)

发音 Pronunciation

/splassom/

例句 Examples

The spliceosome removes introns from pre-mRNA.
剪接体会从前体mRNA中移除内含子。

Errors in the spliceosome can alter gene expression and contribute to disease by producing abnormal mRNA isoforms.
剪接体发生错误可能改变基因表达,并通过产生异常的mRNA同工型而导致疾病。

词源 Etymology

spliceosomesplice(“剪接/拼接”,此处指RNA剪接)+ -some(在生物学中常见后缀,表示“体/复合体/结构”,如 ribosome 核糖体)构成,字面意思是“进行剪接的复合体”。该术语随真核RNA剪接机制研究的发展而普及,用来指代执行剪接反应的分子机器。

相关词 Related Words

文学与作品 Notable Works

  • 《Molecular Biology of the Cell》(Alberts等):在RNA加工章节系统介绍剪接体与真核基因表达调控。
  • 《Genes》(Benjamin Lewin):详细讨论pre-mRNA剪接、snRNP与剪接体的组装与催化机制。
  • 《RNA: A Laboratory Manual》:在RNA分析与剪接实验相关内容中常出现该术语,用于实验设计与方法描述。
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