V2EX isocitrate

Isocitrate

Definition / 定义

isocitrate(异柠檬酸):一种重要的生物化学中间产物,属于“三羧酸循环(TCA/Krebs 循环)”中的有机酸;它由柠檬酸(citrate)异构化而来,并可在异柠檬酸脱氢酶作用下转变为后续产物(常见为 α-酮戊二酸的生成过程之一)。日常语境较少见,主要用于生物化学与分子生物学。

Pronunciation / 发音

/asostret/

Examples / 例句

Isocitrate is an intermediate in the citric acid cycle.
异柠檬酸是柠檬酸循环中的一种中间产物。

During aerobic respiration, isocitrate is oxidized by isocitrate dehydrogenase, helping drive energy production through the generation of NADH.
在有氧呼吸过程中,异柠檬酸在异柠檬酸脱氢酶作用下被氧化,通过生成 NADH 来推动能量产生。

Etymology / 词源

iso- 源自希腊语,意为“相同、同分异构”,常用于表示“同分异构体/结构相近但排列不同”;citrate 来自 citric acid(柠檬酸),与拉丁语 citrus(柑橘)相关。合起来,isocitrate 字面含义可理解为“柠檬酸的异构体相关形式”。

Related Words / 相关词

Literary Works / 文学作品

  • Lehninger Principles of Biochemistry(《莱宁格生物化学原理》)中在三羧酸循环章节讨论 isocitrate 及其转化。
  • Biochemistry by Berg, Tymoczko & Stryer(《Stryer 生物化学》)中讲解柠檬酸循环时多次出现 isocitrate
  • Molecular Biology of the Cell by Alberts et al.(《细胞的分子生物学》)在细胞代谢与能量转换相关章节中涉及 isocitrate
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