V2EX alpha-ketoglutarate

Alpha-ketoglutarate

定义 Definition

α-酮戊二酸(也常写作 alpha-ketoglutarate,缩写 AKG):一种重要的代谢中间产物,属于三羧酸循环(TCA/Krebs 循环)中的关键分子,参与能量生成以及氨基酸代谢中的转氨作用。医学与生化语境中也常指其共轭碱形式“α-酮戊二酸盐(α-ketoglutarate)”。

发音 Pronunciation

/lf kitolutret/

例句 Examples

Alpha-ketoglutarate is an intermediate in the Krebs cycle.
α-酮戊二酸是克雷布斯循环中的一种中间产物。

When cells lack oxygen, changes in alpha-ketoglutarate levels can affect amino acid metabolism and gene regulation.
当细胞缺氧时,α-酮戊二酸水平的变化会影响氨基酸代谢和基因调控。

词源 Etymology

“Alpha-”来自希腊字母 α(alpha),在化学命名中常用来标示与某个官能团相邻的位置(α位)。 “Keto-”源自希腊语 keton(与“酮”相关),表示分子中含有酮基;“glutarate”来自“glutaric acid(戊二酸)”的盐/酯形式名称。合起来表示“在α位带有酮基的戊二酸(相关形式)”。

相关词 Related Words

文学与著作 Notable Works

  • Lehninger Principles of Biochemistry(《莱宁格生物化学原理》)
  • Biochemistry (Berg, Tymoczko & Stryer)(《生物化学:伯格/斯特赖尔》)
  • Molecular Biology of the Cell(《细胞的分子生物学》)
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