V2EX transamination

Transamination

Definition / 释义

转氨作用;转氨基反应:一种常见的生物化学反应,指在转氨酶(aminotransferase)催化下,把一个氨基酸的氨基(NH)转移到一个α-酮酸上,从而生成新的氨基酸与新的酮酸。它是氨基酸合成与分解、氮代谢中的关键步骤。(在不同语境下也可泛指“氨基转移”的过程。)

Pronunciation / 发音(IPA)

/trnzmnen/

Examples / 例句

Transamination helps the body make nonessential amino acids.
转氨作用帮助人体合成非必需氨基酸。

In the liver, transamination links amino acid metabolism to the citric acid cycle by producing key keto acids.
在肝脏中,转氨作用通过生成关键的酮酸,把氨基酸代谢与柠檬酸循环联系起来。

Etymology / 词源

由 **trans-**(“跨越、转移”)+ amination(“氨基化/引入氨基”)构成,字面意思就是“把氨基转移过去”。该词常用于描述氨基在分子之间的转移反应,尤其在生物化学与医学语境中。

Related Words / 相关词汇

Literary Works / 文献与著作中的用例

  • Lehninger Principles of Biochemistry(《莱宁格生物化学原理》)
  • Biochemistry by Berg, Tymoczko & Stryer(《斯特赖尔生物化学》)
  • Harper’s Illustrated Biochemistry(《哈珀图解生物化学》)
  • Campbell Biology(《坎贝尔生物学》)
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