V2EX tetrahydrofolate

Tetrahydrofolate

释义 Definition

四氢叶酸:叶酸(维生素B9)的还原活性形式,常作为一碳单位(one-carbon units)转移的辅酶,参与DNA/RNA合成所需的核苷酸生成以及部分氨基酸代谢(如同型半胱氨酸蛋氨酸循环)。在生物化学与医学检验中常简写为 THF

发音 Pronunciation (IPA)

/ttrhadrofolet/

词源 Etymology

该词由三部分构成:**tetra-**(希腊语词根,意为“四”)+ hydro-(与“氢/水”相关的词根,这里指“加氢还原”)+ folate(源自拉丁语 folium “叶子”,因叶酸最初与绿叶蔬菜相关)。字面可理解为“被加氢还原到四氢状态的叶酸”。

例句 Examples

Tetrahydrofolate helps cells make DNA.
四氢叶酸帮助细胞合成DNA。

A deficiency in tetrahydrofolate can impair nucleotide synthesis, leading to megaloblastic anemia and elevated homocysteine.
四氢叶酸缺乏会影响核苷酸合成,可能导致巨幼细胞性贫血并使同型半胱氨酸升高。

相关词 Related Words

文学与经典著作 Literary Works

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》):在“一碳代谢/叶酸辅酶”相关章节中讨论四氢叶酸及其衍生物的转移反应。
  • Harper’s Illustrated Biochemistry(《哈珀图解生物化学》):在核苷酸合成与叶酸代谢、以及抗叶酸药物机制处频繁出现。
  • Biochemistry by Berg, Tymoczko & Stryer(《斯特赖尔生物化学》):涉及THF在嘌呤/胸苷酸合成中的辅酶作用与代谢联系。
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