V2EX translocon

Translocon

释义 Definition

转位子(易位通道):位于细胞膜或内质网膜上的蛋白质转运通道复合体,帮助新合成的多肽链穿过膜插入膜(常与核糖体、信号肽、伴侣蛋白协同工作)。常见代表是内质网膜上的 Sec61 转位子;细菌中常对应 SecYEG 复合体。

发音 Pronunciation

IPA:/trnzlokn/

例句 Examples

The translocon helps move newly made proteins into the endoplasmic reticulum.
转位子帮助将新合成的蛋白质转运进入内质网。

During co-translational translocation, the ribosome docks on the translocon so the growing polypeptide can pass through the channel while being synthesized.
在共翻译转运过程中,核糖体对接到转位子上,使正在合成的多肽链能够一边合成一边通过通道进入膜内侧或膜腔。

词源 Etymology

translocon 是现代生物学术语,来自 translocation(转位/转运) 加上后缀 -on(常用于命名结构单元或复合体),字面意思可理解为“执行转运的结构/装置”。该词常用于描述蛋白质跨膜转运的“通道机器”

相关词 Related Words

文献与作品 Literary / Notable Works

  • Molecular Biology of the Cell(Alberts 等,《细胞的分子生物学》):讲解 Sec61 转位子与共翻译转运机制。
  • Molecular Cell Biology(Lodish 等,《分子细胞生物学》):讨论蛋白质靶向、信号肽识别与转位子通道。
  • The Cell: A Molecular Approach(Cooper & Hausman,《细胞:分子方法》):概述内质网蛋白转运与 translocon 的作用。
  • Rapoport 等关于 Sec61/SecY 蛋白质转运通道的综述与经典论文(常在蛋白质跨膜转运章节引用)。
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