V2EX geranylgeranyl pyrophosphate

Geranylgeranyl Pyrophosphate

释义 Definition

香叶基香叶基焦磷酸(GGPP):一种重要的异戊二烯类中间体(C20),在生物体内用于合成多种萜类/类异戊二烯化合物(如类胡萝卜素、叶绿素侧链、辅酶Q侧链等),也常作为蛋白质香叶基香叶基化(geranylgeranylation)的供体分子,参与细胞信号与膜定位相关过程。

发音 Pronunciation (IPA)

/drnldrnl parofsfet/

例句 Examples

The enzyme uses geranylgeranyl pyrophosphate to build longer isoprenoids.
这种酶利用香叶基香叶基焦磷酸来合成长链异戊二烯类化合物。

In the mevalonate pathway, geranylgeranyl pyrophosphate serves as a key precursor for protein prenylation and the biosynthesis of quinone side chains.
在甲羟戊酸途径中,香叶基香叶基焦磷酸是蛋白质异戊烯基化以及醌类侧链生物合成的重要前体。

词源 Etymology

该术语由三部分构成:geranyl(香叶基,源自“geranium/天竺葵”相关命名,早期与香叶醇等香气成分有关)+ geranylpyrophosphate(焦磷酸,意为“两个磷酸相连的基团”)。整体意思就是“带有香叶基香叶基链的焦磷酸酯”,反映其结构与生化功能。

相关词 Related Words

文学与著名作品 Notable Works

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》)中在异戊二烯/萜类生物合成与甲羟戊酸途径章节常提及GGPP作为关键中间体。
  • Molecular Biology of the Cell(《细胞的分子生物学》)相关章节会在蛋白质修饰(如异戊烯基化/膜定位)语境中提到以GGPP为供体的修饰过程。
  • Biochemistry (Berg, Tymoczko & Stryer)(《生物化学》)在萜类与甾体生物合成内容中常将GGPP与FPP并列作为重要前体分子。
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