V2EX lipoxygenase

Lipoxygenase

释义 Definition

脂氧合酶:一类含铁的酶,能催化多不饱和脂肪酸(如亚油酸、花生四烯酸)与氧发生反应生成脂质过氧化物。在植物中常与防御反应、香气形成有关;在动物中与炎症介质(如白三烯等)相关。(该词在不同生物体与同工酶中功能与底物偏好可有差异。)

发音 Pronunciation (IPA)

/lpksdens/

例句 Examples

Lipoxygenase helps convert fatty acids into signaling molecules.
脂氧合酶有助于把脂肪酸转化为信号分子。

In plants, lipoxygenase activity can increase after injury, contributing to defensive chemicals and characteristic “green” aromas.
在植物中,受伤后脂氧合酶活性可能升高,从而促进防御性化学物质的生成,并产生典型的“青味/青叶香气”。

词源 Etymology

lipo- 来自希腊语 lipos(“脂肪”),oxygen(“氧”)指反应中引入氧,**-ase** 是英语中常见的“酶”后缀。合起来字面意思就是“与脂肪氧化反应相关的酶”。

相关词 Related Words

文学与著作 Literary Works

  • 《Lehninger Principles of Biochemistry》(《雷宁格生物化学原理》):在脂类代谢与信号分子相关章节中常提及脂氧合酶途径。
  • 《Molecular Biology of the Cell》(《细胞的分子生物学》):讨论细胞信号与脂质介质时可能出现 lipoxygenase/LOX 相关内容。
  • 《Biochemistry》(Stryer,《生物化学》):在脂质氧化、炎症介质或花生四烯酸代谢相关段落中常见该词。
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