V2EX karyopherin

Karyopherin

Definition / 定义

karyopherin(核转运蛋白)指一类负责在细胞核与细胞质之间运输蛋白质或RNA等“货物”分子的转运受体家族,通常通过核孔复合体进行进出核运输;常见成员包括 importin(导入蛋白)exportin(导出蛋白)。(该词在细胞生物学/分子生物学语境中最常见。)

Pronunciation / 发音

/kri.ofrn/

Examples / 例句

Karyopherins help proteins enter the nucleus.
核转运蛋白帮助蛋白质进入细胞核。

After phosphorylation, the cargo protein bound to a karyopherin and was transported through the nuclear pore complex in a Ran-dependent manner.
磷酸化之后,货物蛋白与核转运蛋白结合,并在 Ran 依赖的机制下通过核孔复合体被运输。

Etymology / 词源

karyopherin由希腊语词根构成:karyo- 表示“细胞核”(源自 karyon,意为“核/果核”),**-pherin**与“携带/运输”含义相关(与希腊语 pherein“携带”同源)。整体意思就是“携带(分子)进入/离开细胞核的蛋白”。

Related Words / 相关词

Literary Works / 文学作品

  • Molecular Biology of the Cell(《细胞的分子生物学》,Alberts 等):在细胞核转运/核孔章节讨论 karyopherin(如 importin/exportin)介导的核-质运输。
  • Lewin’s Genes(《莱温基因》,现多版本为 Genes 系列教材):在真核基因表达调控与核转运内容中出现相关术语与机制描述。
  • Molecular Cell Biology(《分子细胞生物学》,Lodish 等):在核孔复合体与 Ran GTPase 循环相关章节中使用该术语。
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