V2EX ketoglutarate

Ketoglutarate

释义 Definition(中文)

ketoglutarate(酮戊二酸盐):指酮戊二酸(ketoglutaric acid)的盐或其在体内以离子形式存在的状态;在生物化学中最常见的是 α-ketoglutarate(α-酮戊二酸,也称 2-oxoglutarate,2-氧戊二酸),是三羧酸循环(TCA/Krebs 循环)的重要中间体,并参与氨基酸代谢与氮代谢等过程。

发音 Pronunciation(IPA)

/kitolutret/

例句 Examples

Ketoglutarate is an intermediate in the Krebs cycle.
酮戊二酸盐是克雷布斯循环中的一种中间体。

During intense exercise, changes in ketoglutarate levels can reflect shifts in cellular energy metabolism and amino acid turnover.
在高强度运动时,酮戊二酸盐水平的变化可能反映细胞能量代谢与氨基酸周转的转变。

词源 Etymology(中文)

该词由 keto-(酮基) + glutarate(戊二酸盐) 构成:

  • keto- 表示含有酮基(C=O)的结构特征;
  • glutarate 来自 glutaric acid(戊二酸) 的盐/酯形式。
    因此 ketoglutarate 字面含义可理解为“含酮基的戊二酸盐”。在生物化学语境中多指 α-酮戊二酸/2-氧戊二酸 的离子形态。

相关词 Related Words

文学与经典著作 Literary Mentions(作品示例)

  • Lehninger Principles of Biochemistry(《莱宁格生物化学原理》)在三羧酸循环与氨基酸代谢章节讨论 α-ketoglutarate。
  • Biochemistry by Berg, Tymoczko & Stryer(《斯崔尔生物化学》)在能量代谢与TCA循环部分频繁出现该术语。
  • Molecular Biology of the Cell by Alberts et al.(《细胞的分子生物学》)在细胞代谢与线粒体相关内容中提及 α-ketoglutarate/2-oxoglutarate。
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