V2EX monooxygenase

Monooxygenase

释义 Definition

单加氧酶:一类酶,催化把一个氧原子从分子氧(O)引入底物,同时将另一个氧原子还原为水;常需辅因子/电子供体(如 NAD(P)H)参与。该类酶在药物代谢、解毒与生物合成中很常见(例如细胞色素 P450 属于重要的单加氧酶家族)。

发音 Pronunciation

/mn.ok.s.d.nes/

例句 Examples

Monooxygenases help the body break down many drugs.
单加氧酶帮助人体分解许多药物。

In the liver, a cytochrome P450 monooxygenase can oxidize a hydrophobic compound, making it easier to excrete.
在肝脏中,某些细胞色素 P450 单加氧酶可以氧化疏水性化合物,使其更容易被排出体外。

词源 Etymology

mono- 表示“单个、一个”,oxygen 表示“氧”,后缀 -ase 常用于表示“酶”。合起来字面意思就是“把一个氧引入反应的酶”,对应其典型反应特征:O 的两个氧原子中,一个进入底物,另一个形成水。

相关词 Related Words

文学与典籍中的用例 Literary Works

  • Cytochrome P450: Structure, Mechanism, and Biochemistry(多处讨论 P450 作为 monooxygenase 的机制与功能)
  • Lehninger Principles of Biochemistry《雷宁格生物化学原理》(在氧化还原酶/氧化酶与加氧酶相关章节中出现)
  • Biochemistry(Berg, Tymoczko, Stryer)《生物化学》(涉及单加氧酶与药物代谢、P450 系统的叙述)
  • Molecular Biology of the Cell《细胞的分子生物学》(在代谢与解毒相关语境中可能提及 monooxygenase/P450)
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