V2EX rna quality control

RNA Quality Control

释义 Definition

RNA质量控制:细胞内一套监测与处理机制,用来识别并降解或修复异常/有缺陷的RNA(如错误剪接、含提前终止密码子的mRNA、缺失修饰的rRNA/tRNA等),以防止错误蛋白产生并维持基因表达稳定。(也常特指NMD、NSD、NGD等mRNA监控通路的总称。)

发音 Pronunciation (IPA)

/rne kwlti kntrol/

例句 Examples

RNA quality control helps cells remove faulty messages before they are translated.
RNA质量控制帮助细胞在翻译之前清除有缺陷的“遗传信息”。

When splicing goes wrong, RNA quality control pathways such as nonsense-mediated decay can recognize the abnormal mRNA and reduce harmful protein production.
当RNA剪接出错时,RNA质量控制通路(如无义介导的降解)可识别异常mRNA,从而减少有害蛋白的产生。

词源 Etymology

该短语由 RNA(ribonucleic acid,核糖核酸)、quality(质量)与 control(控制/管控)组成,是生命科学语境中常见的组合表达,强调“像工业质检一样对RNA进行把关”。20世纪后期随着对mRNA稳定性、剪接错误与降解通路(如NMD)的研究深入,“RNA质量控制”逐渐成为概括相关监控机制的常用术语。

相关词 Related Words

文学/著作中的用例 Literary Works

  • Molecular Biology of the Cell(《细胞的分子生物学》)中在mRNA代谢与监控章节系统讨论RNA质量控制相关机制(如NMD等)。
  • Lewin’s Genes(《卢温基因》)中在基因表达调控与RNA加工部分涉及RNA监控/质量控制概念。
  • The RNA World(《RNA世界》)相关章节常提及RNA加工、稳定性与监控机制对生命系统的重要性。
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