V2EX dioxygenase

Dioxygenase

释义 Definition

dioxygenase(双加氧酶):一类氧化酶,能把分子氧(O)中的两个氧原子都引入到底物分子中,常见于生物体内对芳香化合物、脂肪酸或其他有机物的代谢与降解过程。(注:相关的 monooxygenase 通常只引入一个氧原子,另一个被还原成水。)

发音 Pronunciation (IPA)

/daksdnes/ (英式常见)
/daksdnes/ (美式常见)

例句 Examples

The bacterium uses a dioxygenase to break down aromatic pollutants.
这种细菌利用一种双加氧酶来分解芳香族污染物。

Researchers identified a new dioxygenase that initiates the first step in degrading this compound under low-oxygen conditions.
研究人员鉴定出一种新的双加氧酶,它在低氧条件下启动该化合物降解的第一步反应。

词源 Etymology

由 **di-**(“二、双”)+ oxygen(“氧”)+ -ase(“酶”这一类名词后缀)构成,字面意思就是“与两个氧相关的酶/引入两个氧的酶”。该命名方式符合生物化学中对酶类按反应特征命名的传统。

相关词 Related Words

文献与作品 Literary / Notable Works

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》):在氧化还原酶与代谢途径章节中讨论氧化酶/加氧酶体系,常出现 dioxygenase(或具体类型如 aromatic-ring dioxygenase)的用法。
  • Biochemistry(Berg, Tymoczko & Stryer):介绍加氧酶与相关辅因子时,会涉及 dioxygenase 家族及其在代谢中的作用。
  • 综述与经典研究文献中常见表达:如关于 Rieske dioxygenase(里斯克型双加氧酶)的芳香环开环/羟化机制、微生物污染物降解等主题的论文与综述中频繁出现该词。
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