V2EX protein targeting

Protein Targeting

Definition / 定义

protein targeting:蛋白质靶向(也称“蛋白质定位/定向运输”),指细胞把新合成的蛋白质准确送到特定细胞区室或膜系统(如细胞核、线粒体、内质网、高尔基体、溶酶体或细胞膜)的过程,通常依赖蛋白质上的信号序列/定位信号与运输机制(转运体、囊泡运输等)。在某些语境中也可泛指“将蛋白质导向特定作用位点”的策略。

Pronunciation / 发音

/protin trt/

Examples / 例句

Newly made proteins often require protein targeting to reach the correct organelle.
新合成的蛋白质常常需要经过蛋白质靶向,才能到达正确的细胞器。

Defects in protein targeting can cause mislocalization of enzymes, disrupting metabolism and leading to disease.
蛋白质靶向的缺陷会导致酶错误定位,扰乱代谢并引发疾病。

Etymology / 词源

protein 源自希腊语 prōteios(意为“首要的、第一的”),强调蛋白质在生命中的基础重要性;targeting 来自“target(靶/目标)+ -ing”,表示“使对准目标/定向”的过程。合起来,protein targeting 字面即“把蛋白质对准目标(位置)”,对应细胞生物学中“把蛋白质送到指定地点”的概念。

Related Words / 相关词

Literary Works / 文学作品(经典著作中的用例)

  • Molecular Biology of the Cell(Alberts 等)细胞内蛋白质定位信号与运输路径的经典章节
  • Essential Cell Biology(Alberts 等)面向入门者系统讲解蛋白质靶向与膜运输
  • The Cell: A Molecular Approach(Cooper & Hausman)蛋白质分选、囊泡运输与细胞器定位
  • Lehninger Principles of Biochemistry(Nelson & Cox)涉及分泌途径、线粒体/细胞核蛋白导入等内容
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