V2EX fatty-acid-synthase

Fatty Acid Synthase

定义 Definition

Fatty acid synthase(脂肪酸合酶,常缩写为 FAS)是一种多功能酶复合体,负责在细胞内将乙酰辅酶A(acetyl-CoA)和丙二酰辅酶A(malonyl-CoA)等原料逐步“延长”碳链,合成饱和脂肪酸(在动物中常见产物为棕榈酸 palmitate)。它在脂质代谢中非常关键,并与能量储存、细胞生长以及某些疾病(如肿瘤代谢重编程)相关。

发音 Pronunciation (IPA)

/fti sd snθes/

例句 Examples

Fatty acid synthase helps cells make fatty acids from smaller molecules.
脂肪酸合酶帮助细胞用较小的分子合成脂肪酸。

In many cancers, fatty acid synthase is overexpressed, supporting rapid growth by increasing lipid production.
在许多癌症中,脂肪酸合酶会过度表达,通过提高脂质生成来支持快速生长。

词源 Etymology

该术语由三部分构成:fatty(“脂肪的”)+ acid(“酸”,此处指脂肪酸)+ synthase(“合成酶”)。其中 synthase 来自“synthesis(合成)”的构词系统,用于指催化合成反应的酶。整体字面意就是“合成脂肪酸的酶”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》)
  • Biochemistry (Berg, Tymoczko & Stryer)(《生物化学》Stryer 等)
  • Molecular Biology of the Cell(《细胞的分子生物学》)
  • Harper’s Illustrated Biochemistry(《哈珀图解生物化学》)
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