V2EX coenzyme

Coenzyme

Definition|释义

辅酶:在许多酶促反应中必需的小分子有机辅助因子,常与酶蛋白配合工作,帮助转移电子或化学基团(如氢、乙酰基、甲基等),从而使反应顺利进行。常见辅酶包括 NAD/NADH、FAD/FADH、辅酶A(CoA) 等。(该词在生物化学中最常用;在不同语境下也可有更细分的分类。)

Pronunciation|发音(IPA)

/konzam/

Examples|例句

Coenzymes help enzymes carry out reactions in the body.
辅酶帮助酶在体内进行化学反应。

NAD acts as a coenzyme in cellular respiration, shuttling electrons between metabolic steps.
NAD在细胞呼吸中充当辅酶,在代谢各步骤之间转运电子。

Etymology|词源

co- 表示“共同、一起”,enzyme 来自希腊语 enzymos(意为“在酵母/发酵中”),早期与发酵现象相关。coenzyme 字面意思就是“与酶一起工作的东西”,用来强调它不是酶蛋白本身,但在反应中与酶协同发挥作用。

Related Words|相关词汇

Literary Works|文学与经典著作中的用例

  • Lehninger Principles of Biochemistry(《莱宁格生物化学原理》):在酶学与代谢章节中频繁使用 coenzyme(如 NAD、FAD、CoA 的功能说明)。
  • Biochemistry by Berg, Tymoczko & Stryer(《斯特赖尔生物化学》):讨论酶催化机制、辅酶在氧化还原反应中的角色时多次出现。
  • Harper’s Illustrated Biochemistry(《哈珀图解生物化学》):在维生素与辅酶关系、能量代谢部分常见该词。
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