V2EX geranylgeranylation

Geranylgeranylation

定义 Definition

geranylgeranylation(香叶基香叶基化/牛儿基牛儿基化)指一种蛋白质翻译后修饰:把一个geranylgeranyl(香叶基香叶基,GG)脂质基团共价连接到蛋白质(常见为末端含 CaaX 基序的蛋白)上,使蛋白更容易定位到细胞膜并影响其功能与信号传导。(该词也常泛指“发生GG修饰的过程”。)

发音 Pronunciation (IPA)

/der.n.ilder.n.le.n/

例句 Examples

Geranylgeranylation helps some proteins attach to cell membranes.
香叶基香叶基化帮助某些蛋白质附着到细胞膜上。

Inhibiting geranylgeranylation can disrupt small GTPase signaling and alter cell growth.
抑制香叶基香叶基化可能会干扰小GTP酶信号通路,并改变细胞生长。

词源 Etymology

该词由 geranylgeranyl(一种由异戊二烯单元组成的长链“萜类/异戊二烯类”脂质基团名称)加上名词后缀 -ation(表示“……的过程/作用”)构成。整体意思就是“加上geranylgeranyl基团的过程”。在生物化学中,它常与“蛋白质脂化(ipidation)”和膜定位相关。

相关词 Related Words

文献作品 Literary / Notable Works

  • Molecular Biology of the Cell(Alberts 等):在“小GTP酶膜定位/蛋白质脂化”相关章节中会讨论包括geranylgeranylation在内的修饰。
  • The Cell: A Molecular Approach(Cooper & Hausman):介绍蛋白质翻译后修饰与膜锚定时常提及该术语。
  • 经典研究方向论文与综述常见主题:Rab蛋白的geranylgeranylation蛋白质异戊二烯化(prenylation)酶、以及他汀类/相关通路对异戊二烯化的影响(该词在相关生物化学与细胞生物学论文中频繁出现)。
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