V2EX nuclear pore complex

Nuclear Pore Complex

Definition / 定义

核孔复合体(常缩写为 NPC):位于核膜上的大型蛋白质结构,形成“核孔通道”,负责在细胞核细胞质之间选择性运输分子(如RNA、蛋白质等),是核质运输的关键“闸门”。

Pronunciation / 发音

/nuklir pr kmpleks/

Examples / 例句

The nuclear pore complex controls what enters and leaves the nucleus.
核孔复合体控制哪些物质进入和离开细胞核。

Through interactions with transport receptors, the nuclear pore complex enables selective, energy-dependent movement of proteins and RNA across the nuclear envelope.
通过与转运受体的相互作用,核孔复合体使蛋白质和RNA能够选择性地、依赖能量地跨越核膜进行运输。

Etymology / 词源

  • nuclear 源自拉丁语 nucleus(“核、核心”),引申为“与细胞核/原子核有关的”。
  • pore 来自拉丁语 porus(“孔、通道”),表示微小开口。
  • complex 源自拉丁语 complexus(“交织在一起的”),在科学语境中常指由多部分组成的“复合体”。
    合起来,“nuclear pore complex”字面意思即“细胞核上的孔道复合结构”。

Related Words / 相关词汇

Literary Works / 文学作品

  • Molecular Biology of the Cell(Alberts 等,《细胞的分子生物学》):讲解核孔复合体结构与核质运输机制。
  • Lewin’s Genes(Lewin,《基因》):在真核基因表达与RNA输出部分涉及核孔复合体。
  • The Cell: A Molecular Approach(Cooper & Hausman,《细胞:分子方法》):介绍NPC的组成(核孔蛋白)与选择性屏障功能。
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